Gold nanoparticles-sensitized wide and narrow band gap TiO2 for visible light applications: a comparative study

2015 ◽  
Vol 39 (6) ◽  
pp. 4708-4715 ◽  
Author(s):  
Sajid Ali Ansari ◽  
Mohammad Mansoob Khan ◽  
Mohd Omaish Ansari ◽  
Moo Hwan Cho

Photocatalytic degradation of dyes and organic compounds by Au/P-TiO2 and Au/M-TiO2 nanocomposites under visible light irradiation.

2021 ◽  
Author(s):  
Changzhi Han ◽  
Peihua Dong ◽  
Haoran Tang ◽  
Peiyun Zheng ◽  
Chong Zhang ◽  
...  

Narrow band gap conjugated polymer photocatalysts containing dithieno[3,2-b:2′,3′-d]thiophene-S,S-dioxide show an attractive photocatalytic hydrogen evolution rate of 16.32 mmol h−1 g−1 under visible light irradiation.


2011 ◽  
Vol 181-182 ◽  
pp. 332-335 ◽  
Author(s):  
H.Y. Wang ◽  
Y.C. Yang ◽  
L. Le ◽  
Y. Liu ◽  
J.H. Wei ◽  
...  

Pureα-Bi2O3with nanoneedle array structure was synthesized directly by hydrothermal method. The optic absorption of theα-Bi2O3paricles was cut off at ~483 nm and the band gap of theα-Bi2O3was estimated to be 2.57 eV. The photocatalytic activity of theα-Bi2O3samples was higher than TiO2under a visible light irradiation. As a conclusion, relative narrow band gap ofα-Bi2O3nanoneedle array compared to anatase and the special morphology of nanoneedle array structures may improve the photocatalytic activity in visible light irradiation.


2015 ◽  
Vol 14 (11) ◽  
pp. 2024-2034 ◽  
Author(s):  
Navneet Kaur ◽  
Satwant Kaur Shahi ◽  
Vasundhara Singh

This article illustrates important substrate–catalyst interaction studies using Reactive dyes and various modified TiO2powders under visible light irradiation and demonstrates the need for developing new catalysts for the degradation of dyes having different structural features present in textile effluents.


2013 ◽  
Vol 13 (8) ◽  
pp. 1738-1742 ◽  
Author(s):  
Yuyuan Yao ◽  
Zhenfu Huang ◽  
Binbin Zheng ◽  
Shun Zhu ◽  
Wangyang Lu ◽  
...  

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