Enhancement of visible-light-driven photocatalytic performance of BiOBr nanosheets by Co2+ doping

被引：34

作者：

Huang, Wenmao ^{[1
]}

Hua, Xin ^{[1
]}

Zhao, Yaping ^{[1
,2
]}

Li, Kai ^{[1
]}

Tang, Liping ^{[1
]}

Zhou, Man ^{[1
]}

Cai, Zaisheng ^{[1
]}

机构：

[1] Donghua Univ, Coll Chem Chem Engn & Biotechnol, Minist Educ, Key Lab Sci & Technol Ecotext, Shanghai 201620, Peoples R China

[2] Donghua Univ, Fundamental Expt Chem Ctr, Shanghai 201620, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2019年 / 30卷 / 16期

基金：

中国国家自然科学基金;

关键词：

MICROSPHERES; DEGRADATION; BIOCL; NANOPARTICLES; MECHANISMS; REDUCTION; OXIDATION; GRAPHENE; CATALYST; LIQUID;

D O I：

10.1007/s10854-019-01869-x

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this work, Co2+ modification influence on the visible-light-induced photocatalytic performance of BiOBr was investigated. BiOBr and Co2+-doped BiOBr (Co/BiOBr) nanosheets were fabricated through a facile solvothermal way. The morphology, structure, chemical composition and optical properties of the photocatalysts were characterized by various techniques. The results confirmed the successful synthesis of Co/BiOBr nanosheets and indicated the doped Co2+ had little influence on the surface morphology and crystal structure but expanded the light absorption region. Photoelectrochemical measurements were applied to evaluate the semiconducting properties of Co/BiOBr, and the results implied that compared with the undoped sample, Co/BiOBr had higher charge transfer efficiency and smaller charge transfer resistance which were beneficial to the improvement of visible-light-driven photocatalytic performance. The as-synthesized Co/BiOBr nanosheets exhibited excellent catalytic activity and stability in the photodecomposition of contaminants.

引用

页码：14967 / 14976

页数：10