Preparation of 1D ultrathin niobate nanobelts by liquid exfoliation as photocatalysts for hydrogen generation

2019 ◽  
Vol 55 (17) ◽  
pp. 2417-2420
Author(s):  
Fangrui Cheng ◽  
Xin Jiang ◽  
Zepeng Zhang ◽  
Renzhi Ma ◽  
Takayoshi Sasaki ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Driving Force ◽  
Hydrogen Generation ◽  
High Photocatalytic Activity ◽  
One Dimensional ◽  
Liquid Exfoliation ◽  
Hydrolysis Of

The original driving force for the exfoliation of RbNbO3 to form one-dimensional (1D) niobate nanobelts is the combination of the hydration of Rb+ and the hydrolysis of (NbO3)nn− and the 1D ultrathin nanobelts show high photocatalytic activity.

scholarly journals On Photocatalytic Activity of Systems of Titania/(Fe (II, III))-Type in Aqueous Suspensions

2018 ◽  
Vol 17 (6) ◽  
pp. 521-527
Author(s):  
V. A. Gorbunova ◽  
L. M. Sliapniova
Keyword(s):  
Photocatalytic Activity ◽  
Oxidation Reaction ◽  
High Photocatalytic Activity ◽  
Organic Dye ◽  
Iron Ions ◽  
Physico Chemical ◽  
Photocatalytic System ◽  
Initial Suspension ◽  
Hydrolysis Of ◽  
Chemical Water

. The photocatalytic activity of three systems, promising for chemical water purification technologies, was experimentally compared, based on a combination of titanium dioxide/(Fe(II, III)), applying to the model oxidation reaction of methylorange organic dye in an aqueous medium. Herewith the cases of photocatalytic systems were investigated, which are based on: a) titania hydrosol obtained by hydrolysis of titanium isobutylate; b) a similar hydrosol with addition of Fe(III) ions; c) suspension of ilmenite powder based on FeTiO3. As a result of the investigation, the increase of the rate of destruction of methylorange by more than two times was found in the system with the introduction of a small amount of iron ions into initial suspension of the TiO2 hydrosol (at the obtaining a medium with the Fe3+ concentration up to 3.7 × 10–5 M). In the photocatalytic system, based on the suspension of pretreated (with suphation and calcination) ilmenite powder, enough high photocatalytic activity (the degree of methylorange decomposition up to 77 %) was measured but at a higher exposure than for the case of systems based on the TiO2 hydrosol. For the photocatalytic systems of the type being investigated, a possible mechanism of increasing their oxidative activity was briefly considered, which requires an additional physico-chemical analysis.

Synthesis and Characterization of Low-Dimensional Structure Photocatalyst BaGeGa6O12

2010 ◽  
Vol 445 ◽  
pp. 191-194
Author(s):  
Miki Nishiya ◽  
Kazuyoshi Uematsu ◽  
Tadashi Ishigaki ◽  
Kenji Toda ◽  
Mineo Sato
Keyword(s):  
Photocatalytic Activity ◽  
Water Splitting ◽  
High Photocatalytic Activity ◽  
Dimensional Structure ◽  
Synthesis And Characterization ◽  
Layered Perovskite ◽  
One Dimensional ◽  
Low Dimensional

Low-dimensional structure compounds as layered perovskite shows high photocatalytic activity in water splitting. In this study, we investigated that synthesis and characterization of photocatalytic activity of BaGeGa6O12 with a one-dimensional structure. BaGeGa6O12 with loading 0.3wt% RuO2 showed a photocatalytic activity for water splitting into H2 (70.6 μ mol / h) and O2 (28.1 μ mol / h).

Novel one-dimensional Bi2O3–Bi2WO6 p–n hierarchical heterojunction with enhanced photocatalytic activity

2014 ◽  
Vol 2 (22) ◽  
pp. 8517-8524 ◽  
Author(s):  
Yin Peng ◽  
Mei Yan ◽  
Qing-Guo Chen ◽  
Cong-Min Fan ◽  
Hai-Yan Zhou ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Organic Compounds ◽  
Visible Light Irradiation ◽  
Electrostatic Field ◽  
High Photocatalytic Activity ◽  
Light Irradiation ◽  
Junction Region ◽  
One Dimensional ◽  
Photogenerated Electrons

A novel Bi2O3–Bi2WO6 p–n junction photocatalyst exhibits high photocatalytic activity for the degradation of organic compounds under solar/visible light irradiation, which is ascribed to the effective separation of photogenerated electrons and holes by the internal electrostatic field in the junction region.

New facile synthesis of one-dimensional Ag@TiO2 anatase core–shell nanowires for enhanced photocatalytic properties

RSC Advances ◽  
2014 ◽  
Vol 4 (103) ◽  
pp. 59114-59117 ◽  
Author(s):  
Qingsong Dong ◽  
Hongchao Yu ◽  
Zhengbo Jiao ◽  
Gongxuan Lu ◽  
Yingpu Bi
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Organic Contaminants ◽  
High Photocatalytic Activity ◽  
Core Shell ◽  
Facile Synthesis ◽  
One Dimensional ◽  
Tio2 Anatase ◽  
Shell Nanowires

One-dimensional Ag@TiO2 anatase core–shell nanowires are fabricated and exhibit high photocatalytic activity for degrading organic contaminants under visible-light irradiation.

Visible light-induced hydrogen generation using colloidal (ZnS)0.4(AgInS2)0.6 nanocrystals capped by S2− ions

2015 ◽  
Vol 3 (16) ◽  
pp. 8276-8279 ◽  
Author(s):  
Metikoti Jagadeeswararao ◽  
Sunita Dey ◽  
Angshuman Nag ◽  
C. N. R. Rao
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Generation ◽  
High Photocatalytic Activity ◽  
Co Catalyst ◽  
Visible Light Active

Non-toxic and visible-light active S2−-capped (ZnS)0.4(AgInS2)0.6 nanocrystals exhibit high photocatalytic activity for H2 evolution from water without requiring any co-catalyst.

Core-Shell WO3/TiO2 Nanorod Heterostructures for Solar Light Photocatalysis

2013 ◽  
Vol 850-851 ◽  
pp. 78-81 ◽  
Author(s):  
Peng Guo ◽  
Ling Tao Meng ◽  
Chang Hua Wang
Keyword(s):  
Photocatalytic Activity ◽  
Organic Pollutants ◽  
Chemical Stability ◽  
Light Response ◽  
High Photocatalytic Activity ◽  
Shell Morphology ◽  
Solar Light ◽  
Core Shell ◽  
One Dimensional ◽  
One Dimensional Nanostructures

Heterojunction photocatalyst containing one dimensional nanostructures exhibits interesting size, shape and material-dependent photocatalytic properties compared to single-component counterpart. In this work, we develop a simple two-step strategy to WO3/TiO2 heterojunction based on WO3 nanorods and TiO2 nanoparticles. The as-obtained heterojunction features core-shell morphology and has the advantage of extended solar light response, enhanced chemical stability and easy recyclability. As such, it exhibits high photocatalytic activity toward organic pollutants degradation including rodamine B dye and gaseous acetaldehyde.

Synthesis of one-dimensional WO3–Bi2WO6 heterojunctions with enhanced photocatalytic activity

CrystEngComm ◽  
2015 ◽  
Vol 17 (3) ◽  
pp. 569-576 ◽  
Author(s):  
Yin Peng ◽  
Qing-Guo Chen ◽  
Dan Wang ◽  
Hai-Yan Zhou ◽  
An-Wu Xu
Keyword(s):  
Photocatalytic Activity ◽  
Rhodamine B ◽  
Photogenerated Electron ◽  
High Photocatalytic Activity ◽  
Light Irradiation ◽  
Solar Light ◽  
Electron Hole ◽  
One Dimensional ◽  
Effective Separation ◽  
Solar Light Irradiation

A one-dimensional WO3–Bi2WO6 photocatalyst exhibits high photocatalytic activity for the degradation of rhodamine B (RhB) under solar light irradiation, which is attributed to the effective separation of photogenerated electron–hole pairs by the staggered band potentials between WO3 and Bi2WO6.

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