Novel RGO and Concave Cube Cu2O Co-Modified BiVO4 Nanosheets with Enhanced Photocatalytic and Surface Adsorption Performances of Tetracycline

被引：9

作者：

Gao, Xin ^{[1
]}

Ma, Changchang ^{[1
,2
]}

Ma, Wei ^{[1
,3
]}

Chen, Rongru ^{[4
]}

Liu, Yang ^{[1
,5
]}

Liu, Zhi ^{[1
,6
]}

Zhu, Zhi ^{[1
]}

Huo, Pengwei ^{[1
]}

Yan, Yongsheng ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Chem & Chem Engn, Inst Green Chem & Chem Technol, Zhenjiang 212013, Jiangsu, Peoples R China

[2] Jiangsu Univ, Res Ctr Fluid Machinery Engn & Technol, Zhenjiang 212013, Jiangsu, Peoples R China

[3] Jiangsu United Chem Co Ltd, Zhenjiang 212212, Jiangsu, Peoples R China

[4] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China

[5] Jilin Normal Univ, Sch Phys, Siping 136000, Peoples R China

[6] Liaoning Normal Univ, Sch Chem & Chem Engn, Dalian 116029, Peoples R China

来源：

NANO | 2019年 / 14卷 / 02期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Adsorption; synergistic effect; BiVO4; tetracycline; Cu2O; RGO; Z-SCHEME PHOTOCATALYST; ANTIBIOTIC-RESISTANT BACTERIA; VISIBLE-LIGHT PHOTOACTIVITY; GRAPHITIC CARBON NITRIDE; REDUCED GRAPHENE OXIDE; FACILE SYNTHESIS; DEGRADATION; EFFICIENT; MECHANISM; REMOVAL;

D O I：

10.1142/S1793292019500152

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A novel ternary Cu2O/BiVO4/RGO photocatalyst is successfully constructed by hydrothermal and evaporation-induced method, and it exhibits superior photocatalytic performance for degradation tetracycline (TC). Meanwhile, the visible light absorption range of composite photocatalyst is effectively broadened by the formation of heterojunction with narrow band gap semiconductor Cu2O. And the separation efficiency of the photogenerated electron-hole pairs is significantly enhanced by the synergistic effect of Cu2O and RGO. More importantly, the adsorption of TC by ternary Cu2O/BiVO4/RGO possesses high adsorption capacity, which is 23.73 times higher than that of pure BiVO4. Additionally, the possible reaction mechanism is clearly revealed by radical trapping experiment, electron spin-resonance (ESR) spectroscopy. This work provides a new insight to design a photocatalyst with excellent adsorption to remove organic contaminants in water.

引用

页数：13

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