Controlled Fabrication of Fluorescent Barcode Nanorods

Controlled Fabrication of Fluorescent Barcode Nanorods: "ACS Nano, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Synthesis and characterization of mono-dispersed Y3Al5O12:Er3+-coated SiO2 nanoparticles by co-precipitation process

Synthesis and characterization of mono-dispersed Y3Al5O12:Er3+-coated SiO2 nanoparticles by co-precipitation process: "

Abstract  

In this paper, a facile co-precipitation process for preparing mono-dispersed core–shell structure nanoparticles is reported.
The 110 nm SiO₂ cores coated with an yttrium aluminum garnet (Y₃Al₅O₁₂) layer doped with Er³⁺ were synthesized and the influence of the concentration ratio of [urea]/[metal ions] on the final product was investigated.
The structure and morphology of samples were characterized by the X-ray powder diffraction, Fourier transform IR spectroscopy
and transmission electron microscopy, respectively. The results indicate that a layer of well-crystallized garnet Y₃Al₅O₁₂:Er³⁺ were successfully coated on the silica particles with the thickness of 20 nm. The near infrared and upconversion luminescent
spectra of the SiO₂@Y₃Al₅O₁₂:Er³⁺ powders further confirm that a Y₃Al₅O₁₂:Er³⁺ coating layer has formed on the surface of silica spherical particles.

• Content Type Journal Article
• Category Research Paper
• DOI 10.1007/s11051-010-0036-x
• Authors
  • Cheng-Ning Xie, South China University of Technology Key Lab of Specially Functional Materials of Ministry of Education and Institute of Optical Communication Materials Guangzhou 510641 People’s Republic of China
  • Zhong-Min Yang, South China University of Technology Key Lab of Specially Functional Materials of Ministry of Education and Institute of Optical Communication Materials Guangzhou 510641 People’s Republic of China

• Journal Journal of Nanoparticle Research
• Online ISSN 1572-896X
• Print ISSN 1388-0764

"

Angular reflectance of suspended gold, aluminum and silver nanospheres on a gold film: Effects of concentration and size distribution

Angular reflectance of suspended gold, aluminum and silver nanospheres on a gold film: Effects of concentration and size distribution: "

Abstract  

In this article, we describe a parametric study of the effects of the size distribution (SD) and the concentration of nanospheres
in ethanol on the angular reflectance. Calculations are based on an effective medium approach in which the effective dielectric
constant of the mixture is obtained using the Maxwell–Garnett formula. The detectable size limits of gold, aluminum, and silver
nanospheres on a 50-nm-thick gold film are calculated to investigate the sensitivity of the reflectance to the SD and the
concentration of the nanospheres. The following assumptions are made: (1) the total number of particles in the unit volume
of suspension is constant, (2) the nanospheres in the suspension on a gold film have a SD with three different concentrations,
and (3) there is no agglomeration and the particles have a log-normal SD, where the effective diameter, d
_eff and the effective variance, ν
_eff are given. The dependence of the reflectance on the d
_eff, ν
_eff, and the width of the SD are also investigated numerically. The angular variation of the reflectance as a function of the
incident angle shows a strong dependence on the effective size of the metallic nanospheres. The results confirm that the size
of the nanospheres (d
_eff <100 nm) can be detected by reflected light from the bottom surface of a gold film with a reasonable sensitivity if a proper
angle of incidence is chosen based on the type of metallic particles on a gold thin film at λ = 632 nm. We show that the optimum incident angle to characterize the size of nanospheres on a gold film is between 70° and
75° for a given concentration with a particular SD.

• Content Type Journal Article
• Category Research Paper
• DOI 10.1007/s11051-010-0035-y
• Authors
  • Mustafa M. Aslan, TUBITAK Marmara Research Center Materials Institute 41470 Gebze-Kocaeli Turkey
  • Thomas Wriedt, Institut für Werkstofftechnik Badgasteiner Str. 3 28359 Bremen Germany

• Journal Journal of Nanoparticle Research
• Online ISSN 1572-896X
• Print ISSN 1388-0764

"

Seed-Mediated Synthesis of Ag Nanocubes with Controllable Edge Lengths in the Range of 30−200 nm and Comparison of Their Optical Properties

Seed-Mediated Synthesis of Ag Nanocubes with Controllable Edge Lengths in the Range of 30−200 nm and Comparison of Their Optical Properties: "Journal of the American Chemical Society, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Size Selection and Concentration of Silver Nanoparticles by Tangential Flow Ultrafiltration for SERS-Based Biosensors

Size Selection and Concentration of Silver Nanoparticles by Tangential Flow Ultrafiltration for SERS-Based Biosensors: "Journal of the American Chemical Society, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Ferromagnetism in ZnO Nanoparticles Induced by Doping of a Nonmagnetic Element: Al

Ferromagnetism in ZnO Nanoparticles Induced by Doping of a Nonmagnetic Element: Al: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Synthesis of Variable-Sized Fe3O4 Nanocrystals by Visible Light Irradiation at Room Temperature

Synthesis of Variable-Sized Fe3O4 Nanocrystals by Visible Light Irradiation at Room Temperature: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Blinking Suppression in CdSe/ZnS Single Quantum Dots by TiO2 Nanoparticles

Blinking Suppression in CdSe/ZnS Single Quantum Dots by TiO2 Nanoparticles: "ACS Nano, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Ligand-Tuned Shape Control, Oriented Assembly, and Electrochemical Characterization of Colloidal ZnTe Nanocrystals

Ligand-Tuned Shape Control, Oriented Assembly, and Electrochemical Characterization of Colloidal ZnTe Nanocrystals: "Chemistry of Materials, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Structure−Activity Relationships in Gold Nanoparticle Dimers and Trimers for Surface-Enhanced Raman Spectroscopy

Structure−Activity Relationships in Gold Nanoparticle Dimers and Trimers for Surface-Enhanced Raman Spectroscopy: "Journal of the American Chemical Society, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Ag Nanoparticle-Mediated Raman Scattering of 4-Aminobenzenethiol on a Pt Substrate

Ag Nanoparticle-Mediated Raman Scattering of 4-Aminobenzenethiol on a Pt Substrate: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

A Novel Near-Infrared Antibacterial Material Depending on the Upconverting Property of Er3+-Yb3+-Fe3+ Tridoped TiO2 Nanopowder

A Novel Near-Infrared Antibacterial Material Depending on the Upconverting Property of Er3+-Yb3+-Fe3+ Tridoped TiO2 Nanopowder: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Ion-Exchange Synthesis and Enhanced Visible-Light Photoactivity of CuS/ZnS Nanocomposite Hollow Spheres

Ion-Exchange Synthesis and Enhanced Visible-Light Photoactivity of CuS/ZnS Nanocomposite Hollow Spheres: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Structural Evolution and Photoluminescence of Zinc-Blende CdSe-Based CdSe/ZnS Nanocrystals

Structural Evolution and Photoluminescence of Zinc-Blende CdSe-Based CdSe/ZnS Nanocrystals: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Heating rate influence on the synthesis of iron oxide nanoparticles: the case of decanoic acid

Heating rate influence on the synthesis of iron oxide nanoparticles: the case of decanoic acid: "

Pablo Guardia, Jorge Perez-Juste, Amilcar Labarta, Xavier Batlle, Luis M. Liz-Marzan

(Communication from Chem. Commun.)

Pablo Guardia, Chem. Commun., 2010, DOI: 10.1039/c0cc01179g

To cite this article before page numbers are assigned, use the DOI form of citation above.


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Microwave-assisted polyol synthesis of Cu nanoparticles

Microwave-assisted polyol synthesis of Cu nanoparticles: "

Abstract  

Microwave heating was applied to synthesize copper colloidal nanoparticles by a polyol method that exploits the chelating
and reducing power of a polidentate alcohol (diethylenglycol). The synthesis was carried out in the presence of eco-friendly
additives such as ascorbic acid (reducing agent) and polyvinylpirrolidone (chelating polymer) to improve the reduction kinetics
and sols stability. Prepared suspensions, obtained with very high reaction yield, were stable for months in spite of the high
metal concentration. In order to optimize suspensions, synthesis parameters were modified and the effects on particle size,
optical properties, and reaction yield were investigated. XRD analysis, scanning transmission electron microscopy (STEM),
and DLS measurements confirmed that prepared sols consist of crystalline metallic copper with a diameter ranging from 45 to
130 nm. Surface plasmon resonance (SPR) of Cu nanoparticles was monitored by UV–Vis spectroscopy and showed both a red shift
and a band weakening due to nanoparticle diameter increase. Microwave use provides rapid, uniform heating of reagents and
solvent, while accelerating the reduction of metal precursors and the nucleation of metal clusters, resulting in monodispersed
nanostructures. The proposed microwave-assisted synthesis, also usable in large-scale continuous production, makes process
intensification possible.

• Content Type Journal Article
• Category Research Paper
• DOI 10.1007/s11051-010-0010-7
• Authors
  • M. Blosi, CNR, National Research Council ISTEC-CNR, Institute of Science and Technology for Ceramics Via Granarolo 64 48018 Faenza Italy
  • S. Albonetti, University of Bologna Department of Industrial Chemistry and Materials, INSTM, Research Unit of Bologna Viale Risorgimento 4 40136 Bologna Italy
  • M. Dondi, CNR, National Research Council ISTEC-CNR, Institute of Science and Technology for Ceramics Via Granarolo 64 48018 Faenza Italy
  • C. Martelli, University of Bologna Department of Industrial Chemistry and Materials Viale Risorgimento 4 40136 Bologna Italy
  • G. Baldi, CERICOL, Colorobbia Research Via Pietramarina 123 50053 Sovigliana Vinci Italy

• Journal Journal of Nanoparticle Research
• Online ISSN 1572-896X
• Print ISSN 1388-0764

"

Silver nanoparticles in simulated biological media: a study of aggregation, sedimentation, and dissolution

Silver nanoparticles in simulated biological media: a study of aggregation, sedimentation, and dissolution: "

Abstract  

Nanoparticles, the building blocks of many engineered nanomaterials, can make their way into the environment or into organisms,
either accidentally or purposefully. The intent of this study is to provide some insight into the complex environmental, health,
and safety issues associated with engineered nanomaterials. In particular, here the state of commercially manufactured silver
nanoparticles—i.e., will silver nanoparticles be present as isolated particles, agglomerates, or dissolved ions—in two simulated
biological media is explored. Two different commercially manufactured silver nanoparticle samples, one that has been surface
modified with a thick polymer coating to render them more water-soluble and the other, with a sub-nanometer surface layer,
are studied. The experimental results and the extended DLVO model calculations show that silver nanoparticles have a propensity
to settle out in high ionic strength media independent of surface modification. Furthermore, single nanoparticles as well
as aggregates/agglomerates are present together in these solutions. Silver ion release in these simulated biological buffers
with pHs of 4.5 and 7.4 is negligible after 96 h.

• Content Type Journal Article
• Category Research Paper
• DOI 10.1007/s11051-010-0022-3
• Authors
  • Larissa V. Stebounova, University of Iowa Department of Chemistry Iowa 52242 IA USA
  • Ethan Guio, University of Iowa Department of Chemical and Biochemical Engineering Iowa 52242 IA USA
  • Vicki H. Grassian, University of Iowa Department of Chemistry Iowa 52242 IA USA

• Journal Journal of Nanoparticle Research
• Online ISSN 1572-896X
• Print ISSN 1388-0764

"

Solution Synthesis of Monodisperse Indium Nanoparticles and Highly Faceted Indium Polyhedra

Solution Synthesis of Monodisperse Indium Nanoparticles and Highly Faceted Indium Polyhedra: "Crystal Growth & Design, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Surface-Enhanced Raman and Fluorescence Spectroscopy of Dye Molecules Deposited on Nanostructured Gold Surfaces

Surface-Enhanced Raman and Fluorescence Spectroscopy of Dye Molecules Deposited on Nanostructured Gold Surfaces: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

New Pathway To Prepare Surface-Enhanced Raman Scattering-Active Au/TiO2 Nanocomposites-Containing Substrates by Sonoelectrochemical Methods

New Pathway To Prepare Surface-Enhanced Raman Scattering-Active Au/TiO2 Nanocomposites-Containing Substrates by Sonoelectrochemical Methods: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Facile Synthesis of Water-Soluble Fluorescent Silver Nanoclusters and HgII Sensing

Facile Synthesis of Water-Soluble Fluorescent Silver Nanoclusters and HgII Sensing: "Chemistry of Materials, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Improved Versatility of Silver Nanoparticle Dimers for Surface-Enhanced Raman Spectroscopy

Improved Versatility of Silver Nanoparticle Dimers for Surface-Enhanced Raman Spectroscopy: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Epitaxial CdSe-Au Nanocrystal Heterostructures by Thermal Annealing

Epitaxial CdSe-Au Nanocrystal Heterostructures by Thermal Annealing: "Nano Letters, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Plasmonic Nanoparticle Arrays with Nanometer Separation for High-Performance SERS Substrates

Plasmonic Nanoparticle Arrays with Nanometer Separation for High-Performance SERS Substrates: "Nano Letters, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Aggregative Growth in the Size-Controlled Growth of Monodispersed Gold Nanoparticles

Aggregative Growth in the Size-Controlled Growth of Monodispersed Gold Nanoparticles: "Langmuir, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

An examination of silver nanoparticles in socks using screening-level life cycle assessment

An examination of silver nanoparticles in socks using screening-level life cycle assessment: "

Abstract  

Screening-level life cycle assessment (LCA) can provide a quick tool to identify the life cycle hot spots and focus research
efforts to help to minimize the burdens of a technology while maximizing its benefits. The use of nanoscale silver in consumer
products has exploded in popularity. Although its use is considered beneficial because of antimicrobial effects, some attention
must be given to the potential environmental impacts it could impart on the life cycle of these nanoproducts as production
demands escalate. This work examines the environmental impact of including silver nanoparticles in commercially available
socks using screening-level LCA. Initial results suggest washing during the use phase contributes substantially more than
the manufacturing phase to the product life cycle impacts. Comparison of nanoparticles prepared by either chemical reduction,
liquid flame spray (LFS), or plasma arc demonstrate how the type of manufacturing process used for the nanoscale silver can
change the resulting life cycle impact of the sock product. The magnitude of this impact will depend on the type of process
used to manufacture the nanoscale silver, with LFS having the most impact because of the need for large quantities of hydrogen
and oxygen. Although the increased impacts for a single nanoproduct may be relatively small, the added environmental load
can actually be a significant quantity when considered at the regional or global production level.

• Content Type Journal Article
• Category Research Paper
• DOI 10.1007/s11051-010-0013-4
• Authors
  • David E. Meyer, U.S. Environmental Protection Agency National Risk Management Research Laboratory 26 W. Martin Luther King Dr. Cincinnati OH 45268 USA
  • Mary Ann Curran, U.S. Environmental Protection Agency National Risk Management Research Laboratory 26 W. Martin Luther King Dr. Cincinnati OH 45268 USA
  • Michael A. Gonzalez, U.S. Environmental Protection Agency National Risk Management Research Laboratory 26 W. Martin Luther King Dr. Cincinnati OH 45268 USA

• Journal Journal of Nanoparticle Research
• Online ISSN 1572-896X
• Print ISSN 1388-0764

"

Facile synthesis and electrochemical properties of octahedral gold nanocrystals

Facile synthesis and electrochemical properties of octahedral gold nanocrystals: "

Abstract  

High-yield octahedral gold nanocrystals of ~45 nm in size have been facilely synthesized by one-pot reduction of HAuCl₄ using formic acid in cetyltrimethylammonium bromide (CTAB) aqueous solution. The results showed that CTAB can promote the
formation of single-crystalline nucleation and preferentially adsorb on the (111) planes of gold nanocrystals, resulting in
the formation of octahedral gold nanocrystals. Formic acid acted as not only a mild reducing agent, but also could promote
the formation of (111) facet. The octahedral gold nanocrystals exhibited similar cyclic voltammetry (CV) curves to single-crystal
Au (111) electrode and excellent electrocatalytic activity for methanol oxidation. This synthetic strategy may open new route
for facile synthesis of shape-controlled metal nanoparticles.

• Content Type Journal Article
• Category Research Paper
• DOI 10.1007/s11051-010-0014-3
• Authors
  • Dawei Wang, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences State Key Laboratory of Electroanalytical Chemistry Changchun Jilin 130022 People’s Republic of China
  • Jianshe Huang, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences State Key Laboratory of Electroanalytical Chemistry Changchun Jilin 130022 People’s Republic of China
  • Yang Liu, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences State Key Laboratory of Electroanalytical Chemistry Changchun Jilin 130022 People’s Republic of China
  • Xinyi Han, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences State Key Laboratory of Electroanalytical Chemistry Changchun Jilin 130022 People’s Republic of China
  • Tianyan You, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences State Key Laboratory of Electroanalytical Chemistry Changchun Jilin 130022 People’s Republic of China

• Journal Journal of Nanoparticle Research
• Online ISSN 1572-896X
• Print ISSN 1388-0764

"

The upconversion luminescence properties of the Yb3+–Ho3+ system in nanocrystalline Y2O2S

The upconversion luminescence properties of the Yb3+–Ho3+ system in nanocrystalline Y2O2S: "

Abstract  

Near-spherical Y₂O₂S:Yb³⁺,Ho³⁺ nanocrystals (NCs) with an average particle size of 40 nm were synthesized by the coprecipitation method followed by a solid–gas
sulfuration technique. The effects of the Ho³⁺ ion doping concentration on the upconversion luminescence (UCL) property of the NCs was studied through the UCL spectra.
Results show that the UCL intensity of Y₂O₂S:Yb³⁺,Ho³⁺ NCs markedly changes with Ho³⁺ ion concentration, and that the Ho³⁺ ion concentration quench is observed at 0.25 mol%. This value is only half as much as that in micron Y₂O₂S prepared by a solid state reaction, which can be attributed to the distinct diffusion mechanism of activator ions in the
coprecipitation process. In addition, strong red emissions can be observed in Y₂O₂S:Yb³⁺,Ho³⁺ NCs throughout all Ho³⁺ doping concentrations used. However, the Ho³⁺ in micron Y₂O₂S usually exhibits weak red UCL. Infrared spectra confirm that this result is related to the large vibrational quanta produced
by OH⁻ and CO₃
²⁻ groups adsorbed onto the surface of NCs. These large vibrational quanta can remarkably increase the probability of ⁵S₂–⁵F₅ and ⁵I₆–⁵I₇ multiphonon relaxation, leading to the enhancement of red emissions arising from ⁵F₅ → ⁵I₈ transitions. The UCL mechanism of the Yb³⁺–Ho³⁺ system in nano- and microsized Y₂O₂S is also discussed.

• Content Type Journal Article
• DOI 10.1007/s10853-010-4744-5
• Authors
  • Yao Fu, Dalian Maritime University Department of Physics, Institute of Optoelectronic Technology Dalian 116026 Liaoning People’s Republic of China
  • Wanghe Cao, Dalian Maritime University Department of Physics, Institute of Optoelectronic Technology Dalian 116026 Liaoning People’s Republic of China
  • Yong Peng, Dalian Maritime University Department of Physics, Institute of Optoelectronic Technology Dalian 116026 Liaoning People’s Republic of China
  • Xixian Luo, Dalian Maritime University Department of Physics, Institute of Optoelectronic Technology Dalian 116026 Liaoning People’s Republic of China
  • Mingming Xing, Dalian Maritime University Department of Physics, Institute of Optoelectronic Technology Dalian 116026 Liaoning People’s Republic of China

• Journal Journal of Materials Science
• Online ISSN 1573-4803
• Print ISSN 0022-2461

"

SEIRA and SERS Effects in Cyclopentabithiophenethiol-Capped Gold Nanoparticles

SEIRA and SERS Effects in Cyclopentabithiophenethiol-Capped Gold Nanoparticles: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Utilizing Self-Exchange To Address the Binding of Carboxylic Acid Ligands to CdSe Quantum Dots

Utilizing Self-Exchange To Address the Binding of Carboxylic Acid Ligands to CdSe Quantum Dots: "Journal of the American Chemical Society, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Temperature-Sensitive Luminescent Nanoparticles and Films Based on a Terbium (III) Complex Probe

Temperature-Sensitive Luminescent Nanoparticles and Films Based on a Terbium (III) Complex Probe: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Synthesis, phase transition, and magnetic property of iron oxide materials: effect of sodium hydroxide concentrations

Synthesis, phase transition, and magnetic property of iron oxide materials: effect of sodium hydroxide concentrations: "

Abstract  

In this paper, a class of novel iron oxide particles has been fabricated through surfactant-directed structure approach in
hydrothermal reaction. The obtained iron oxide nanostructures with distinct morphologies, such as rhombohedra, octahedral,
plate-like, as well as dendritic, can be obtained by gradually increasing the concentrations of NaOH. The as-prepared iron
oxide particles were characterized utilizing scanning electronic microscopy (SEM), X-ray diffraction (XRD), and transmission
electron microscopy (TEM). Results reveal that the as-made particles, such as rhombohedra and octahedral, can be indexed as
pure rhombohedral phase of hematite and show better single crystalline feature. In contrast, when NaOH concentrations are
1.05 and 6 M, respectively, we accordingly can obtain novel flake-like and dendrtic superstructure that possess a mean arm
length of ~1.5 μm; both the as-made two samples can be easily indexed as a mixture of hematite and maghemite based on their
XRD and TEM results. Additionally, it was found that the obtained iron oxide samples at different NaOH concentrations show
obviously morphologies-dependent feature. Namely, the as-made samples can undergo transition from typical ferromagnetic to
ferrimagnetic behavior when the NaOH concentrations are gradually increased. In general, the presented synthesis approach
could be extended to prepare other metal oxides with specific morphology and structure.

• Content Type Journal Article
• DOI 10.1007/s10853-010-4733-8
• Authors
  • Xiaohui Guo, Northwest University of China Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemical & Materials Science Xi’an 710069 People’s Republic of China
  • Shengliang Zhong, Jiangxi Normal University The College of Chemistry & Chemical Nanchang City 330022 China
  • Ji Zhang, Northwest University of China Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemical & Materials Science Xi’an 710069 People’s Republic of China
  • Wanv Wang, Northwest University of China Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemical & Materials Science Xi’an 710069 People’s Republic of China
  • JianJiang Mao, Fudan University Department of Chemistry Shanghai 200433 People’s Republic of China
  • Gang Xie, Northwest University of China Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, The College of Chemical & Materials Science Xi’an 710069 People’s Republic of China

• Journal Journal of Materials Science
• Online ISSN 1573-4803
• Print ISSN 0022-2461

"

Investigation of structural and optical properties of the CdS and CdS/PPy nanowires

Investigation of structural and optical properties of the CdS and CdS/PPy nanowires: "

Abstract  

In this study, cadmium sulfide (CdS), polypyrrole (PPy) nanowires, and their heterojunctions have been electrochemically synthesized.
Morphology of the nanowires has been investigated by scanning electron microscopy. Energy dispersed X-ray, X-ray diffraction,
UV–Vis, and FTIR analyses have been used to confirm structure of both CdS and PPy nanowires. For the first time with this
study, CdS/PPy nanowire heterojunctions have been integrated into photoelectrochemical (PEC) cells. It has been also demonstrated
that PEC performance of the nanowires was strongly function of production conditions, such as deposition time and voltage.
The maximum power conversion efficiency of the CdS nanowires obtained in this study was 1.36%. Moreover, efficiencies of the
CdS/PPy nanowires have been reached to 5.00%, which makes them very favorable for PEC applications.

• Content Type Journal Article
• DOI 10.1007/s10853-010-4727-6
• Authors
  • Nurdan D. Sankir, TOBB University of Economics and Technology Nanotechnology and Membrane Science Laboratory Ankara Turkey
  • Bahadir Dogan, TOBB University of Economics and Technology Nanotechnology and Membrane Science Laboratory Ankara Turkey

• Journal Journal of Materials Science
• Online ISSN 1573-4803
• Print ISSN 0022-2461

"

Electrospun novel bifunctional magnetic–photoluminescent nanofibers based on Fe2O3 nanoparticles and europium complex

Electrospun novel bifunctional magnetic–photoluminescent nanofibers based on Fe2O3 nanoparticles and europium complex: "Publication year: 2010
Source: Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 3 July 2010
Hengguo, Wang , Yaoxian, Li , Lei, Sun , Yanchun, Li , Wei, Wang , ...
Novel bifunctional magnetic–photoluminescent nanofibers based on Fe2O3 nanoparticles and europium complex Eu(DBM)3(Bath) (DBM = dibenzoylmethanate, Bath = bathophenanthroline) have been prepared by electrospinning. Extensive characterizations of the resulting bifunctional nanofibers have been performed using x-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), energy dispersive x-ray (EDX) analysis, transmission electron microscopy (TEM), and vibrating sample magnetometer (VSM). The influence on photoluminescence properties of bifunctional nanofibers of the addition of Fe2O3 nanoparticles has also been studied. The results indicate that due to decreased symmetry in the composite nanofibers the excitation bands of the composite nanofibers are split into two different components. Furthermore,...

Graphical abstract

Bifunctional magnetic–photoluminescent nanofibers with Fe2O3 nanoparticles and europium complex Eu(DBM)3(Bath) (DBM = dibenzoylmethanate, Bath = bathophenanthroline) have been prepared by electrospinning.
"

Unraveling the Effects of Size, Composition, and Substrate on the Localized Surface Plasmon Resonance Frequencies of Gold and Silver Nanocubes: A Systematic Single-Particle Approach

Unraveling the Effects of Size, Composition, and Substrate on the Localized Surface Plasmon Resonance Frequencies of Gold and Silver Nanocubes: A Systematic Single-Particle Approach: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Modifying the Size and Shape of Monodisperse Bifunctional Alkaline-Earth Fluoride Nanocrystals through Lanthanide Doping

Modifying the Size and Shape of Monodisperse Bifunctional Alkaline-Earth Fluoride Nanocrystals through Lanthanide Doping: "Journal of the American Chemical Society, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Synthesis and Characterization of Novel Lanthanide(III) Complexes-Functionalized Mesoporous Silica Nanoparticles as Fluorescent Nanomaterials

Synthesis and Characterization of Novel Lanthanide(III) Complexes-Functionalized Mesoporous Silica Nanoparticles as Fluorescent Nanomaterials: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Rapid Microwave-Enhanced Solvothermal Process for Synthesis of CuInSe2 Particles and Its Morphologic Manipulation

Rapid Microwave-Enhanced Solvothermal Process for Synthesis of CuInSe2 Particles and Its Morphologic Manipulation: "Chemistry of Materials, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Microwave induced center-doping of silver ions in aqueous CdS nanocrystals with tunable, impurity and visible emission

Microwave induced center-doping of silver ions in aqueous CdS nanocrystals with tunable, impurity and visible emission: "

Qihui Shen, Yan Liu, Jun Xu, Changgong Meng, Xiaoyang Liu

(Communication from Chem. Commun.)

Qihui Shen, Chem. Commun., 2010, DOI: 10.1039/c0cc00237b

To cite this article before page numbers are assigned, use the DOI form of citation above.


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Kinetic Theory of Crystallization of Nanoparticles

Kinetic Theory of Crystallization of Nanoparticles: "Crystal Growth & Design, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Nanoparticle Dissolution from the Particle Perspective: Insights from Particle Sizing Measurements

Nanoparticle Dissolution from the Particle Perspective: Insights from Particle Sizing Measurements: "Langmuir, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."