Fabrication of a CuBi2O4/g-C3N4 p–n heterojunction with enhanced visible light photocatalytic efficiency toward tetracycline degradation

2017 ◽  
Vol 4 (10) ◽  
pp. 1714-1720 ◽  
Author(s):  
Feng Guo ◽  
Weilong Shi ◽  
Huibo Wang ◽  
Hui Huang ◽  
Yang Liu ◽  
...  

CuBi2O4/g-C3N4 p–n heterojunction photocatalysts with enhanced photocatalytic activity were prepared through a facile calcining method.

RSC Advances ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 6114-6120 ◽  
Author(s):  
Junpeng Ren ◽  
Yongyong Zhu

Ag2O doped electrospun BiVO4 nanofibers with p–n junction heterogeneous structures show enhanced photocatalytic activity under visible light (photocatalytic efficiency: 98.47% within 100 min) and good cycling stability.


NANO ◽  
2017 ◽  
Vol 12 (06) ◽  
pp. 1750072 ◽  
Author(s):  
Tao Wang ◽  
Changchang Ma ◽  
Dan Wu ◽  
Xinlin Liu ◽  
Yang Liu ◽  
...  

In this paper, a novel heterostructure of 0D/3D-CdSe/Bi[Formula: see text]TiO[Formula: see text] pyramidal photocatalyst was synthesized and characterized. It exhibited significantly photocatalytic efficiency in photocatalytic degradation of the tetracycline than pure Bi[Formula: see text]TiO2 and CdSe and showed high stability. The enhanced photocatalytic activity might be attributed to the formation of heterostructure between CdSe QDs and 3D Bi[Formula: see text]TiO[Formula: see text], in which CdSe QDs served as electron trapper to improve the separation of photodegradation electron–hole pairs, and provided a number of active adsorption sites for the photogenerated of pollutants. The photocatalytic mechanism of 0D/3D-CdSe/Bi[Formula: see text]TiO[Formula: see text] pyramidal heterostructure was also proposed.


2019 ◽  
Vol 43 (19) ◽  
pp. 7409-7418 ◽  
Author(s):  
Aizhong Jia ◽  
Xiao Zhang ◽  
Fang Li ◽  
Yanji Wang

Hierarchical pore-induced multiple internal reflections and/or scattering of light improves the capability of light trapping and thus photocatalytic efficiency.


2021 ◽  
Author(s):  
Senthilkumar M ◽  
C. Arunagiri

Abstract FexZn1-xO (x = 0, 0.05, 0.075, 0.1 M) nanoparticles based photocatalysts were synthesized by a chemical precipitation method and characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM) with energy dispersive X-ray emission (EDX) and UV–Vis spectroscopy. The photocatalytic efficiency of FexZn1-xO catalysts was assessed under visible light irradiation using the degradation of methylene blue (MB) and methyl orange (MO) dye in aqueous solution. The present investigation shows that the effect of optimized parameters (pH, catalyst dosage and initial dye concentration) and doping concentrations plays significant role in photocatalytic activity. The detailed photocatalytic mechanism for the enhancement of photocatalytic activity has also been proposed.


RSC Advances ◽  
2020 ◽  
Vol 10 (38) ◽  
pp. 22432-22439
Author(s):  
Lu Wang ◽  
Ya Li ◽  
Pingfang Han ◽  
Yunxia Jiang

Constructing p–n heterojunction is an efficient strategy to improve the photocatalytic efficiency.


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