Fabrication of visible light active BiFeO3/CuS/SiO2 Z-scheme photocatalyst for efficient dye degradation

被引：53

作者：

Dutta, Vishal ^{[1
]}

Sharma, Sheetal ^{[1
]}

Raizada, Pankaj ^{[1
,2
]}

Hosseini-Bandegharaei, Ahmad ^{[3
,4
]}

Kaushal, Jyotsana ^{[5
]}

Singh, Pardeep ^{[1
,2
]}

机构：

[1] Shoolini Univ, Sch Chem, Fac Basic Sci, Solan 173212, Himachal Prades, India

[2] Shoolini Univ, Himalayan Ctr Excellence Nanotechnol, Solan 173229, HP, India

[3] Sabzevar Univ Med Sci, Fac Hlth, Dept Environm Hlth Engn, Sabzevar, Iran

[4] Islamic Azad Univ, Kashmar Branch, Dept Engn, POB 161, Kashmar, Iran

[5] Chitkara Univ, Inst Engn & Technol, Ctr Water Sci, Rajpura, Punjab, India

来源：

MATERIALS LETTERS | 2020年 / 270卷

关键词：

Composite materials; Semiconductors; BiFeO3/CuS/SiO2; Z-scheme heterojunction; Photocatalytic activity; KINETICS;

D O I：

10.1016/j.matlet.2020.127693

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel Z-scheme photocatalyst BiFeO3/CuS/SiO2 was fabricated by hydrothermal technique and test for methyl orange photodegradation under visible light. 99% of methyl orange dye was degraded in 60 min which was higher than the photocatalytic activity of pristine BiFeO3 and CuS. (OH)-O-center dot and O-center dot(2)- were the main reactive species during degradation process. The formation of heterojunction promoted rate of electron hole pair separation, effective exploitation of visible light absorption and thus improved the photocatalytic activity. Besides, BiFeO3/CuS/SiO2 showed a significant recycling efficiency over six catalytic cycles. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：4

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