Partially etched Bi2O2CO3 by metal chloride for enhanced reactive oxygen species generation: A tale of two strategies

被引：50

作者：

Ding, Penghui ^{[1
]}

Di, Jun ^{[2
]}

Chen, Xiaoliu ^{[1
]}

Zhao, Junze ^{[1
]}

Gu, Kaizhi ^{[3
]}

Zhang, Yi ^{[1
]}

Yin, Sheng ^{[1
]}

Liu, Gaopeng ^{[1
]}

Xia, Jiexiang ^{[1
]}

Li, Huaming ^{[1
]}

机构：

[1] Jiangsu Univ, Inst Energy Res, Sch Chem & Chem Engn, 301 Xuefu Rd, Zhenjiang 212013, Jiangsu, Peoples R China

[2] Nanyang Technol Univ, Sch Mat Sci & Engn, Ctr Programmable Mat, Singapore 639798, Singapore

[3] East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2019年 / 245卷

基金：

中国国家自然科学基金;

关键词：

Metal chloride; Bi2O2CO3; Heterojunction; Reactive oxygen species; Photocatalytic; P-N-JUNCTION; PHOTOCATALYTIC ACTIVITY; ROOM-TEMPERATURE; HOLLOW MICROSPHERES; QUANTUM DOTS; FABRICATION; HETEROJUNCTIONS; DEGRADATION; REDUCTION; MECHANISM;

D O I：

10.1016/j.apcatb.2018.12.047

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Light-mediated reactive oxygen species generation with water and oxygen is generally regarded as a mild and efficient way for organic pollutants removal. However, it is highly difficult but desirable to construct a photochemical system with increased reactive oxygen species production. Herein, by using Bi2O2CO3 as a prototype, we devise a simple metal chloride-involved etching method to achieve better light absorption and charge carriers separation in a wide-band-gap semiconductor, thus giving rise to improved molecular oxygen activation. The improved photoinduced reactive oxygen species production is further verified by excellent photocatalytic degradation ability of IthB, TC and BPA under visible and ultraviolet light illumination. In addition, the metal chloride-induced strategies heterojunction formation and cation doping significantly affect the dynamics and transfer of carriers, which are advantageous to manipulate one-/two-electron pathway for producing reactive oxygen species.

引用

页码：325 / 333

页数：9

共 57 条

[1] ELECTRONEGATIVITY VALUES FROM THERMOCHEMICAL DATA [J].