Fabrication of Ag/ZnO heterostructure and the role of surface coverage of ZnO microrods by Ag nanoparticles on the photophysical and photocatalytic properties of the metal-semiconductor system

2017 ◽  
Vol 410 ◽  
pp. 557-565 ◽  
Author(s):  
Bikash Sarma ◽  
Bimal K. Sarma
Keyword(s):  
Ag Nanoparticles ◽  
Surface Coverage ◽  
Photocatalytic Properties ◽  
Semiconductor System

Controlled synthesis of functional Ag, Ag–Au/Au–Ag nanoparticles and their Prussian blue nanocomposites for bioanalytical applications

RSC Advances ◽  
2015 ◽  
Vol 5 (61) ◽  
pp. 49671-49679 ◽  
Author(s):  
Prem. C. Pandey ◽  
Richa Singh ◽  
Yashashwa Pandey
Keyword(s):  
Prussian Blue ◽  
Ag Nanoparticles ◽  
Active Role ◽  
Reducing Agents ◽  
Controlled Synthesis ◽  
Bioanalytical Applications

A facile method for the synthesis of functional AgNPs and bimetallic Ag–Au/Au–Ag are reported, enabling the formation of nanocomposite with prussian blue in a crystalline framework for bioanalytical applications, showing the active role of organic reducing agents and 3-aminopropyltrimethoxysilane.

scholarly journals The role of exopolymeric substances in the bioaccumulation and toxicity of Ag nanoparticles to algae

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Kaijun Zhou ◽  
Yi Hu ◽  
Luqing Zhang ◽  
Kun Yang ◽  
Daohui Lin
Keyword(s):  
Ag Nanoparticles ◽  
Exopolymeric Substances

Structure and photocatalytic properties of the composite of Al-doped porous ZnO hollow micro-spheres and Ag nanoparticles

2021 ◽  
Vol 15 (04) ◽  
Author(s):  
Fucheng Yu ◽  
Bolong Wang ◽  
Junpeng Cui ◽  
Dongmei Nan ◽  
Yuanmeng Li ◽  
...  
Keyword(s):  
Ag Nanoparticles ◽  
Photocatalytic Properties

Role of N doping on the structural, optical and photocatalytic properties of the silver deposited ZnO thin films

2016 ◽  
Vol 69 ◽  
pp. 131-138 ◽  
Author(s):  
Rajeev Kumar ◽  
M.Sh. Abdel-Wahab ◽  
M.A. Barakat ◽  
Jamshaid Rashid ◽  
Numan Salah ◽  
...  
Keyword(s):  
Thin Films ◽  
Photocatalytic Properties ◽  
Zno Thin Films ◽  
N Doping

From the Understanding of the Reaction Mechanism Towards Optimizing the Deposition Rate and Optoelectronic Properties of a-Si:H

1989 ◽  
Vol 149 ◽  
Author(s):  
S. Veprek ◽  
M. Heintze ◽  
R. Bayer ◽  
N. Jurčik-Rajman
Keyword(s):  
Reaction Mechanism ◽  
Surface Coverage ◽  
Kinetic Studies ◽  
Reactive Intermediates ◽  
Sticking Coefficient ◽  
High Quality ◽  
Rate Determining Step ◽  
Homogeneous Good ◽  
Good Agreement

ABSTRACTWe present new results of kinetic studies of the deposition of high quality a-Si:H which strongly support the reaction mechanism suggested in our earlier papers: 1. SiH4 → SiH2; 2. SiH2 + SiS4 → Si2H6 (SiH2 + Si2H6 → Si3H6); 3. Si2H6 → 2a-Si:H (Si3H8 → 3a-Si:H). The “SiH3 mechanism”, as promoted by several workers, is in contradiction with these experimental facts.The di- and trisilane, which have a much higher reactive sticking coefficient than monosilane, play the role of reactive intermediates which facilitate the heterogeneous decomposition of silicon carrying species at the surface of the growing film. The values of the reactive sticking coefficient of Si2H6 and Si3H8 depend on the surface coverage by chemisorbed hydrogen; they increase with decreasing surface coverage. Under the conditions of the growth of high quality a-Si:H films the reactive sticking coefficient of disilane amounts to 10−4 to 10−2 which is in a good agreement with recent data of other authors.The rate determining step of the growth of high quality a-Si:H films is the desorption of hydrogen from the surface of the growing film. This can be strongly enhanced by ion bombardment at impact energy of <100 eV. In this way, homogeneous, good quality films were deposited at rates up to 1800 Angströms/min, and there is a well justified hope that this rate can be further increased.

Role of microporous Janus silica nanosheets in the assembly of ultra-small Ag nanoparticles with high catalytic activity

2021 ◽  
Vol 50 (1) ◽  
pp. 208-216
Author(s):  
Mengnan Yang ◽  
Zhaoli Yan ◽  
Tiantian Li ◽  
Bing Liu ◽  
Qiangshan Jing ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ag Nanoparticles ◽  
High Catalytic Activity ◽  
Charged Surface ◽  
Highly Efficient ◽  
Surface Hydroxyls

Negatively charged surface hydroxyls and micropores of Janus silica nanosheets play a particular role in the highly efficient and dispersed assembly of ultra-small Ag nanoparticles with high catalytic activity.

Nanocrystalline Pr6O11: synthesis, characterization, optical and photocatalytic properties

2015 ◽  
Vol 39 (5) ◽  
pp. 3948-3955 ◽  
Author(s):  
Sahar Zinatloo-Ajabshir ◽  
Masoud Salavati-Niasari
Keyword(s):  
Photocatalytic Properties ◽  
Capping Agent

Triethylenetetramine with high hindrance in the presence of PEG plays a role of a co-capping agent for the Pr(OH)3 nanoparticles.

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