One-step hydrothermal route to synthesise BiIO 4 /Bi 2 O 2 (BO 2 OH) heterostructure with improved photocatalytic performance

Micro & nano letters

article

Jie Yang¹  Xiaolong Pan¹  Ke Bi¹  Sen Lin¹  Ce Liang¹  Chongchong Yao¹  Yinxiao Du²  Jun Liu³  Dongyu Fan¹  Hujiang Yang¹  Yonggang Wang¹  Ming Lei¹ 

[1] State Key Laboratory of Information Photonics and Optical Communications and School of Science, Beijing University of Posts and Telecommunications;Department of Mathematics and Physics, Zhengzhou Institute of Aeronautical Industry Management;School of Materials Science and Engineering, Central South University

关键词: bismuth compounds;    photodissociation;    catalysis;    X-ray diffraction;    scanning electron microscopy;    transmission electron microscopy;    ultraviolet spectra;    visible spectra;    dyes;    electron-hole recombination;    one-step hydrothermal route;    heterostructures;    one-step hydrothermal treatment;    X-ray diffraction;    scanning electron microscopy;    transmission electron microscopy;    ultraviolet-visible diffuse reflectance;    UV-visible diffuse reflectance;    photocatalytic activity;    rhodamine B decomposition;    UV light irradiation;    type-II band alignment;    organic contaminations;    BiIO4-Bi2O2(BO2OH);   

DOI  :  10.1049/mnl.2017.0294

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

BiIO4/Bi2O2(BO2OH) heterostructure is successfully synthesised by the method of one-step hydrothermal treatment. Characterisation of BiIO4/Bi2O2(BO2OH) heterostructure is performed by X-ray diffraction, scanning electron microscope, transmission electron microscopy and ultraviolet (UV)–visible diffuse reflectance. The photocatalytic activity is measured by the decomposition of rhodamine B under UV light irradiation. Compared with Bi2O2(BO2OH), BiIO4 and P25, it is noted that 35 wt% BiIO4/Bi2O2(BO2OH) exhibits better performance on degradation. The type-II band alignment of the heterostructure and the decreased recombination rate of electron–hole pairs contribute to this significant enhancement of decomposition of organic contaminations.

【 授权许可】

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