Charge separation properties of (BiO)2CO3/BiOI heterostructures with enhanced solar-driven photocatalytic activity

被引：22

作者：

Si, Yujun ^{[1
]}

Li, Jianzhang ^{[1
]}

Zhong, Junbo ^{[1
]}

Zeng, Jun ^{[1
]}

Huang, Shengtian ^{[1
]}

Yuan, Wei ^{[1
]}

Li, Minjiao ^{[1
,2
]}

Ding, Jie ^{[1
]}

机构：

[1] Sichuan Univ Sci & Engn, Coll Chem & Pharmaceut Engn, Key Lab Green Catalysis Higher Educ Inst Sichuan, Zigong 643000, Peoples R China

[2] Sichuan Univ Sci & Engn, Sichuan Prov Academician Expert Workstn, Zigong 643000, Peoples R China

来源：

CURRENT APPLIED PHYSICS | 2016年 / 16卷 / 03期

关键词：

Photocatalyst; (BiO)(2)CO3; BiOI; Photocatalytic performance; Charge separation; SURFACE PHOTOVOLTAGE; HETEROJUNCTION PHOTOCATALYSTS; EFFICIENT; PERFORMANCE; BR; CL;

D O I：

10.1016/j.cap.2015.12.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

(BiO)(2)CO3/BiOI heterojunctions were prepared in-situ by a pore impregnating method using HI aqueous solution. The specific surface area, structure, morphology, and charge separation properties of the heterostructures prepared were characterized by Brunauer-Emmett-Teller (BET) method, X-ray diffraction (XRD), scanning electron microscopy (SEM), and surface photovoltage (SPV) spectroscopy, respectively. The active species were investigated using scavengers. The photocatalytic activities of (BiO)(2)CO3/BiOI heterojunctions towards discoloration of rhodamine B (RhB) under simulated sun light irradiation were evaluated. Benefiting from enhanced charge separation efficiency, the composite photocatalysts exhibit higher photocatalytic performance than the pure BiOI. Finally, the possible reason was discussed. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：240 / 244

页数：5

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