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 ◽  
...  

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.

RSC Advances ◽  
2015 ◽  
Vol 5 (69) ◽  
pp. 56136-56144 ◽  
Author(s):  
Mengqiao Zang ◽  
Lei Shi ◽  
Lin Liang ◽  
Defeng Li ◽  
Jianmin Sun

The heterostructured g-C3N4/Ag–TiO2 composites exhibited high photocatalytic activity, which was attributed to the synergistic effects of the enhanced absorption of visible light and the efficient separation rates for photogenerated electrons-holes.


2016 ◽  
Vol 188 ◽  
pp. 342-350 ◽  
Author(s):  
Xiaofang Chen ◽  
Jing Wei ◽  
Rujing Hou ◽  
Yan Liang ◽  
Zongli Xie ◽  
...  

2018 ◽  
Vol 54 (4B) ◽  
pp. 42
Author(s):  
Trinh Duy Nguyen

Flower-like Bi2WO6 were successfully synthesized using the solvothermal method at different temperatures and characterized by XRD, FE-SEM, and DRS. We also investigated the photocatalytic activity of Bi2WO6 for the decomposition of rhodamine B under visible light irradiation. From XRD and SEM results, the reaction temperature has significant effects on the morphologies of the samples. From DRS results, Bi2WO6 samples displayed the absorption spectrum up to the visible region and then they showed the high photocatalytic activity under visible light irradiation, as a comparison with TiO2-P25.


2018 ◽  
Vol 32 (8) ◽  
pp. e4412 ◽  
Author(s):  
Zi-Feng Yao ◽  
Gan-Hong Zheng ◽  
Zhen-Xiang Dai ◽  
Ling-Yun Zhang

2019 ◽  
Vol 9 (3) ◽  
pp. 652-658 ◽  
Author(s):  
Xiaolei Liu ◽  
Huishan Zhai ◽  
Peng Wang ◽  
Qianqian Zhang ◽  
Zeyan Wang ◽  
...  

Synthesis of a WO3 photocatalyst with high photocatalytic activity and stability using synergetic internal Fe3+ doping and superficial Pt loading for ethylene degradation under visible-light irradiation.


2007 ◽  
Vol 22 (9) ◽  
pp. 2590-2597 ◽  
Author(s):  
Tetsuya Kako ◽  
Jinhua Ye

Two new oxide photocatalysts in the Pb–Mg–Nb ternary system, Pb3MgNb2O9 (PMN) and Pb1.83Mg0.29Nb1.71O6.39, have been synthesized, and their photophysical and photocatalytic properties were investigated for the first time. The band gaps of PMN and Pb1.83Mg0.29Nb1.71O6.39 were estimated to be 3.2 and 2.8 eV, respectively, from their absorption spectra. The photocatalytic activity evaluated from the decomposition of 2-propanol into acetone under visible-light irradiation indicated that Pb1.83Mg0.29Nb1.71O6.39 exhibited at least 20 times higher activity than PMN and has a strong oxidizing potential to mineralize organic compounds.


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