Preparation and characterization of graphene oxide supported Cu, Cu 2 O, and CuO nanocomposites and their high photocatalytic activity for organic dye molecule

2017 ◽  
Vol 17 (2) ◽  
pp. 137-145 ◽  
Author(s):  
Jonghoon Choi ◽  
Hana Oh ◽  
Sang-Wook Han ◽  
Seokhoon Ahn ◽  
Jaegeun Noh ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Graphene Oxide ◽  
High Photocatalytic Activity ◽  
Organic Dye ◽  
Dye Molecule

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.

Piezo-photocatalytic Activity of Bi0.5Na0.5TiO3@TiO2 Composite Catalyst with Heterojunction for Degradation of Organic Dye Molecule

2020 ◽  
Vol 124 (44) ◽  
pp. 24126-24134
Author(s):  
Xingang Xu ◽  
Xiujuan Lin ◽  
Fanghui Yang ◽  
Shifeng Huang ◽  
Xin Cheng
Keyword(s):  
Photocatalytic Activity ◽  
Organic Dye ◽  
Composite Catalyst ◽  
Dye Molecule

Synthesis, Characterization of Fe-doped TiO2 Nanotubes with High Photocatalytic Activity

2009 ◽  
Vol 129 (3-4) ◽  
pp. 513-518 ◽  
Author(s):  
Lixue Deng ◽  
Shurong Wang ◽  
Daying Liu ◽  
Baolin Zhu ◽  
Weiping Huang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Tio2 Nanotubes ◽  
High Photocatalytic Activity ◽  
Doped Tio2

Synthesis and Characterization of Co-Doped Brookite Titania Photocatalysts with High Photocatalytic Activity

2017 ◽  
Vol 24 (2) ◽  
pp. 111-122 ◽  
Author(s):  
Xin Tan ◽  
Xianshou Huang ◽  
Yunling Zou ◽  
Tao Yu ◽  
Yang Zhao ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
High Photocatalytic Activity ◽  
Synthesis And Characterization ◽  
Co Doped

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).

Sign in / Sign up

Export Citation Format

Share Document