Novel BiVO4@C3N4@GO Composites with Higher Photocatalytic Performance

作     者：Liu Yanxiu Guo Zhi Wang Lijuan Lyu Wenxue Song Hua Wang Xueqin 

作者机构：Provincial Key Laboratory of Oil & Gas Chemical Technology College of Chemistry & Chemical Engineering Northeast Petroleum University Daqing 163318 Shuntian Chemical Group Linyi 2076001 Postdoctoral Center of Northeast Petroleum Univerxity Daqing 163318 Daqing Chemical Research Center of Petrochemical Research Institute Daqing 163714 Daqing Petroleum Chemical Engineering Company Daqing 163714 

出 版 物：《China Petroleum Processing & Petrochemical Technology》 (中国炼油与石油化工（英文版）)

年 卷 期：2019年第21卷第2期

页      面：50-57页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0821[工学-纺织科学与工程] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the Natural Science Foundation of Heilongjiang Province of China [QC2017005] the Province Postdoctoral Fund [LBH-Z15032] 

主　　题：BiVO4 C3N4 graphene oxide visible light photocatalyst 

摘      要：BiVO4, BiVO4@C3N4 and BiVO4@C3N4@GO composite photo-catalysts were synthesized, and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), transmission electron microscopy (TEM), ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS), Fourier transform infrared spectroscopy (FT-IR), and Brunauer-Emmett-Teller (BET) surface area techniques. The photocatalytic activity was evaluated on the degradation of methylene blue (MB) under visible light irradiation, which denoted that the BiVO4@C3N4@GO ternary composite outperformed the binary composite BiVO4@C3N4 and BiVO4. Then the effects of catalyst dosage, initial pH value, and initial methylene blue concentration on the degradation process were investigated systematically. The improvement of visible-light photocatalytic degradation performance was attributed to the enhanced visible light absorption, larger surface area, higher adsorption ability, and prolonged lifetime of photo-generated electron-hole pairs. The recycle experiments results showed that the BiVO4@C3N4@GO composite had excellent photo-stability for MB photocatalytic degradation.