Bismuth Oxybromide with Reasonable Photocatalytic Reduction Activity under Visible Light

ACS Catalysis ◽  
2014 ◽  
Vol 4 (3) ◽  
pp. 954-961 ◽  
Author(s):  
Jun Shang ◽  
Weichang Hao ◽  
Xiaojun Lv ◽  
Tianmin Wang ◽  
Xiaolin Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Reduction ◽  
Reduction Activity

scholarly journals Highly Efficient Red Cabbage Anthocyanin Inserted TiO2 Aerogel Nanocomposites for Photocatalytic Reduction of Cr(VI) under Visible Light

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 937 ◽  
Author(s):  
Haiyan Yang ◽  
Liang Jiang ◽  
Yizhou Li ◽  
Guoqing Li ◽  
Yepeng Yang ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Pure Tio2 ◽  
Photocatalytic Reduction ◽  
Good Stability ◽  
Structure Directing Agent ◽  
Red Cabbage ◽  
Organic Pigments ◽  
Reduction Activity ◽  
Meaningful Activity

In sharp contrast to conventional photosensitization methods in which the organic pigments were often adsorbed, herein we present a study on natural vegetable pigment inserted TiO2 aerogel nanocomposites and we directly use red cabbage anthocyanin (RCP) as a structure-directing agent. It was found that pure TiO2 aerogel nanocomposite did not exhibit any meaningful activity for photocatalytic reduction of Cr(VI). However, the photocatalytic reduction activity was greatly improved by the RCP inserted TiO2 aerogel nanocomposites under visible-light irradiation, which was approximately 2- and 12.3-fold higher than that of TiO2 aerogel conventionally photosensitized by RCP and pure TiO2 aerogel nanocomposites, respectively. It also exhibited good stability and could be reused at least three times without losing a significant amount of its activity.

Metal-free azo-bridged porphyrin porous organic polymers for visible-light-driven CO2 reduction to CO with high selectivity

2020 ◽  
Vol 49 (22) ◽  
pp. 7592-7597
Author(s):  
Yuxia Hou ◽  
Enhui Zhang ◽  
Jiayin Gao ◽  
Shuaiqi Zhang ◽  
Ping Liu ◽  
...  
Keyword(s):  
Visible Light ◽  
High Selectivity ◽  
Co2 Reduction ◽  
Photocatalytic Reduction ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Co Catalyst ◽  
Metal Free ◽  
Reduction Activity ◽  
Visible Light Driven

Two nitrogen-rich azo-bridged POP displaying high photocatalytic reduction activity for CO2 to CO without a sacrificial reagent or metal co-catalyst were prepared.

Construction of the Bi2WO6/Bi4V2O11 heterojunction for highly efficient visible-light-driven photocatalytic reduction of Cr(vi)

2018 ◽  
Vol 42 (1) ◽  
pp. 647-653 ◽  
Author(s):  
Chol-Nam Ri ◽  
Kim Song-Gol ◽  
Jong Ju-Yong ◽  
Sung-Nam Pak ◽  
Song-Chon Ri ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Cycling Stability ◽  
Photocatalytic Reduction ◽  
Light Irradiation ◽  
Highly Efficient ◽  
Reduction Activity ◽  
Visible Light Driven

Bi2WO6/Bi4V2O11 heterojunctions constructed by anchoring Bi4V2O11 nanocrystals onto Bi2WO6 nanoflakes exhibit excellent photocatalytic Cr(vi) reduction activity and cycling stability under visible light irradiation.

scholarly journals Photocatalytic Reduction Activity of 001  TiO2 Codoped with F and Fe under Visible Light for Bromate Removal

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Yan Zhang ◽  
Lingdan Li ◽  
Hongyuan Liu
Keyword(s):  
Visible Light ◽  
Photoelectron Spectroscopy ◽  
Photocatalytic Reduction ◽  
Paramagnetic Resonance ◽  
X Ray ◽  
Reduction Activity ◽  
Transmission Electron ◽  
Carcinogenic Potential ◽  
Microstructure Morphology ◽  
Electron Paramagnetic

The presence of bromate in water is a well-known problem because of its toxic effects on human health, particularly its carcinogenic potential. Photocatalytic reduction is an attractive process for bromate removal. F- and Fe-codoped TiO2 (F-Fe-TiO2) with a {001} facet was successfully prepared, and its bromate-removal activity under visible light was examined. The microstructure, morphology, and chemical state of the doping elements and the optical property of the photocatalysts were examined using transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR), photoluminescence spectroscopy (PLS), and UV-Vis diffuse reflectance spectra (DRS). The results indicate that the optical properties of F-Fe-TiO2 with the {001} facet and cuboid morphology were obviously improved and its photocatalytic activity was significantly enhanced. The bromate solution of 100 μg/L was thoroughly removed with 0.5 g/L dosage of 1.0% F- and 0.08% Fe-codoped TiO2 composite within 1 hour under visible light.

Metal‐Free and Heterogeneous Photocatalytic Reduction of 4‐Nitroaniline by a Poly(Ethylene Glycol)‐Supported Eosin Dye under Visible‐Light Exposure

ChemCatChem ◽  
2019 ◽  
Vol 11 (14) ◽  
pp. 3307-3317
Author(s):  
Andreea L. Chibac ◽  
Violeta Melinte ◽  
Vlasta Brezová ◽  
Estelle Renard ◽  
Arnaud Brosseau ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Visible Light ◽  
Light Exposure ◽  
Photocatalytic Reduction ◽  
Poly Ethylene Glycol ◽  
Metal Free ◽  
Poly Ethylene

Direct Z-scheme Sn-In2O3/In2S3 heterojunction nanostructures for enhanced photocatalytic CO2 reduction activity

2021 ◽  
Author(s):  
Yinyi Ma ◽  
Zemin Zhang ◽  
Xiao Jiang ◽  
Rongke Sun ◽  
Mingzheng Xie ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Environmental Pollution ◽  
Light Absorption ◽  
Co2 Reduction ◽  
Photocatalytic Reduction ◽  
Practical Significance ◽  
Energy Crisis ◽  
Low Light ◽  
Reduction Activity

Photocatalytic reduction of carbon dioxide into chemical fuels has great practical significance in solving energy crisis and environmental pollution, but remains a big challenge owing to its low light absorption...

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