Hydrothermal Synthesis of Zn2SnO4/Few-Layer Boron Nitride Nanosheets Hybrids as a Visible-Light-Driven Photocatalyst

论文摘要

Zn2SnO4/few-layer boron nitride nanosheets（FBNNS） hybrids were synthesized via a one-step hydrothermal method. The structures, morphology, optical properties, electron transformation and separation of the as-prepared products were characterized by X-ray diffraction, transmission electrical microscopy, UV-vis diffuse reflectance spectroscopy and electrochemical impedance spectroscopy, respectively. Rhodamine B was used to evaluate the photocatalytic activities of the as-prepared samples under visible light illumination. The photocatalytic mechanism was also explored. Experimental results showed that the degradation efficiency of rhodamine B was firstly increased and then decreased with increasing the usage amount of FBNNS. When it was 9 wt% based on the weight of Zn2SnO4, the degradation efficiency of the as-prepared Zn2SnO4/FBNNS-9 wt% composites reached to the maximum of 97.5 % in 180 min, which was higher than 39.2 % of pure Zn2SnO4. Moreover, the holes played mainly active roles in photocatalytic reaction process. In addition, the as-prepared hybrids could enhance the separation efficiency of photoexcited carriers compared to pure Zn2SnO4.

论文目录

• 1 Introduction
• 2 Experimental
•   2.1 Materials
•   2.2 Preparation of the Zn2SnO4/FBNNS hybrids
•   2.3 Characterization
• 3 Results and discussion
•   3.1 XRD analysis
•   3.2 Photocatalytic activity analysis
•   3.3 UV-vis DRS analysis
•   3.4 TEM analysis
•   3.5 EIS analysis
•   3.6 Photocatalytic mechanism analysis
• 4 Conclusions

文章来源

类型: 期刊论文

作者: 王一瑾,吴湘锋,ZHAO Zehua,LI Hui,ZHANG Chenxu,SU Junzhang,ZHANG Jiarui,CAO Zuolin,WANG Yiwei,WANG Kaiyuan,PAN Juncheng

来源: Journal of Wuhan University of Technology(Materials Science) 2019年03期

年度: 2019

分类: 工程科技Ⅰ辑

专业: 化学

单位: School of Materials Science and Engineering,Hebei Provincial Key Laboratory of Traffic Engineering Materials,Shijiazhuang Tiedao University

基金: Funded by Natural Science Foundation of Hebei Province,China(No.E2013210011)

分类号: O643.36;O644.1

页码: 563-567

总页数: 5

文件大小: 1121K

下载量: 17