Enhancement of adsorption and visible light photocatalytic activity of the Zn2+-doped BiOBr/PVP modified microspheres for RhB

被引：19
|
作者：
Zhou, Jun [1 ,2 ]
Zhou, Jiabin [1 ,2 ]
Hu, Zeshu [1 ]
Wang, Luo [1 ]
机构：
[1] Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Hubei, Peoples R China
[2] Southwest Petr Univ, Sch Chem & Chem Engn, Chengdu 610500, Sichuan, Peoples R China
来源：
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2019年 / 90卷
基金：
中国国家自然科学基金;
关键词：
Zn2+ doping; Adsorption capacity; Photocatalytic activity; Visible light; Removal mechanism; ASSISTED HYDROTHERMAL SYNTHESIS; HIERARCHICAL MICROSPHERES; DYE DEGRADATION; HETEROJUNCTION; PERFORMANCE; COMPOSITES; IRRADIATION; NANOSHEETS; OXIDATION; PATHWAY;
D O I：
10.1016/j.mssp.2018.10.012
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：
The Zn2+-doped BiOBr/PVP modified microspheres were first prepared via a simple solvothermal method. A series of characterization results indicated that both the adsorption capacity and photocatalytic activity of the Zn2+-doped BiOBr/PVP modified microspheres for Rhodamine B (RhB) were enhanced under visible light (lambda = 420 nm), and the removal percentage was up to 99.6% within 60 min. Besides, the Zn2+-doped BiOBr/PVP modified microspheres also displayed good stability after three recycles. The improvement of adsorption capacity may be mainly attributed to increasing of the specific surface area by the adding of PVP, and the improvement of photocatalytic performance may be mainly ascribed to lower recombination rate of photo - generated electron-hole pairs (e(-) /h(+)) by the doping of Zn2+. The Zn2+-doped BiOBr/PVP modified microspheres with enhanced adsorption capacity and photocatalytic activity may be applied to industrial water treatment field in the future.
引用
收藏
页码：112 / 119
页数：8
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