Facile fabrication of a NiO/Ag3PO4 Z-scheme photocatalyst with enhanced visible-light-driven photocatalytic activity

2020 ◽  
Vol 44 (29) ◽  
pp. 12806-12814 ◽  
Author(s):  
Ning Li ◽  
Yanlei He ◽  
Jiajia Lian ◽  
Qingyun Liu ◽  
Xianxi Zhang ◽  
...  

The photocatalytic performance of Z-scheme NiO/Ag/Ag3PO4 was evaluated by degrading organic pollutants under visible light.

2015 ◽  
Vol 3 (44) ◽  
pp. 22413-22420 ◽  
Author(s):  
Atangana Etogo ◽  
Enlai Hu ◽  
Chunmei Zhou ◽  
Yijun Zhong ◽  
Yong Hu ◽  
...  

Mesoporous BiOCl/Bi2O3/(BiO)2CO3 ternary flower-like heterostructured microspheres have been synthesized which exhibit remarkably enhanced photocatalytic activity for the degradation of organic pollutants.


Minerals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 437 ◽  
Author(s):  
Zhiming Sun ◽  
Fang Yuan ◽  
Xue Li ◽  
Chunquan Li ◽  
Jie Xu ◽  
...  

A novel kind of cyanuric-acid-modified graphitic carbon nitride (g-C3N4)/kaolinite (m-CN/KA) composite with enhanced visible light-driven photocatalytic performance was fabricated through a facile two-step process. Rhodamine B (RhB) was taken as the target pollutant to study the photocatalytic performance of the synthesized catalysts. It is indicated that the cyanuric acid modification significantly enhanced photocatalytic activity under visible light illumination in comparison with the other reference samples. The apparent rate constant of m-CN/KA is almost 1.9 times and 4.0 times those of g-C3N4/kaolinite and bare g-C3N4, respectively. The superior photocatalytic performance of m-CN/KA could be ascribed, not only to the generation of abundant pore structure and reactive sites, but also to the efficient separation of the photogenerated electron-hole pairs. Furthermore, the possible photocatalytic degradation mechanism of m-CN/KA was also presented in this paper. It could be anticipated that this novel and efficient, metal-free, mineral-based photocatalytic composite has great application prospects in organic pollutant degradation.


2019 ◽  
Vol 43 (48) ◽  
pp. 19172-19179
Author(s):  
Hong-ji Ren ◽  
Yu-bin Tang ◽  
Wei-long Shi ◽  
Fang-yan Chen ◽  
Yu-song Xu

The red mud/graphene oxide composite photocatalysts with enhanced photocatalytic activity were prepared through a simple ultrasonic mixing method.


2016 ◽  
Vol 45 (41) ◽  
pp. 16290-16297 ◽  
Author(s):  
Xiaodan Cui ◽  
Wangwang Xu ◽  
Zhiqiang Xie ◽  
James A. Dorman ◽  
Maria Teresa Gutierrez-Wing ◽  
...  

An optimal amount of Ag doping can effectively increase the photocatalytic performance of SnS2.


2014 ◽  
Vol 2 (15) ◽  
pp. 5315-5322 ◽  
Author(s):  
Lan Ching Sim ◽  
Kah Hon Leong ◽  
Shaliza Ibrahim ◽  
Pichiah Saravanan

GO–Ag–TNTs, a ternary composite was synthesized. Both Ag and GO well contributed to enhance the photocatalytic activity in the visible region.


RSC Advances ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 3600-3607 ◽  
Author(s):  
Yuanguo Xu ◽  
Liquan Jing ◽  
Xiao Chen ◽  
Haiyan Ji ◽  
Hui Xu ◽  
...  

Photoactivity of Ag3VO4 can be enhanced by modification with Fe2O3. The electrochemical impedance of the composite being smaller than pure Ag3VO4 may be one reason.


2021 ◽  
Author(s):  
Rui Zhang ◽  
ziyin chen ◽  
Chen Zhao ◽  
Kunlin Zeng ◽  
Lu Cai ◽  
...  

Abstract A novel binary BiSI/Ag2CO3 photocatalyst with excellent visible light-driven photocatalytic performance was prepared. The products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) and electrochemical impedance spectroscopy (EIS). The photocatalytic activity of the samples were evaluated by photocatalytic degradation of rhodamine B(RhB) under the irradiation of visible light. The results showed that the BiSI improves the photocatalytic activity of BiSI/Ag2CO3. Moreover, when the mass ratio of BiSI in BiSI/Ag2CO3 composites was 40%, the as-prepared BiSI/Ag2CO3 composite exhibited the best photocatalytic activity for degrading RhB. Finally, the possible mechanism for photodegradation over the BiSI/Ag2CO3 composites is also proposed.


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