Fabrication of a Ternary BiPO_(4)/BiOIO_(3)/PI Composite with Boosted Photocatalytic Activity  

作　　者：Du Chengxin Luo Ailin Ye Shipeng Wang Qing Zhou Yafen Zhou Limei 

机构地区：[1]Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province,College of Chemistry and Chemical Engineering,China West Normal University,Nanchong,China

出　　处：《China Petroleum Processing & Petrochemical Technology》2024年第4期61-72,共12页中国炼油与石油化工(英文版)

基　　金：supported by the Fundamental Research Funds of China West Normal University(19D038,24kx004);the Opening Project of the Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan(LZJ2101).

摘　　要：As a new type of semiconductor,Bi-based photocatalysts have attracted widespread attention in the field of environmental pollution control.In this study,a ternary BiPO_(4)/BiOIO_(3)/PI composite was prepared using a facile hydrothermal process and ultrasonic-assisted deposition method.The Fourier transform infrared spectra(FT-IR),X-ray powder diffraction(XRD),scanning electron microscopy(SEM),and UV-Vis diffused reflection spectra(UV-Vis DRS)were employed to determine the morphology and structure of the as-obtained BiPO_(4)/BiOIO_(3)/PI composite.The photocatalytic performance of the as-prepared BiPO_(4)/BiOIO_(3)/PI was evaluated via the degradation of dyes such as rhodamine B(RhB),methyl orange(MO),and methylene blue(MB)in aqueous solution.It was found that 99.6% of RhB,92.7% of MO,and 87.5%of MB were degraded,within 15 min of simulated solar irradiation over the BiPO_(4)/BiOIO_(3)/PI composite,showing the remarkably high photocatalytic activity of the BiPO_(4)/BiOIO_(3)/PI ternary photocatalyst.The results of trapping experiments displayed that photogenerated holes and superoxide radicals were the main active species in the photocatalytic process.The obvious enhancement of photocatalytic activity could be mainly ascribed to enhancing the separation and migration of photogenerated charge carriers in the BiPO_(4)/BiOIO_(3)/PI composite.

关 键 词：BiPO_(4)/BiOIO_(3)/PI composite PHOTOCATALYST degradation DYE 

分 类 号：X703[环境科学与工程—环境工程] O643.36[理学—物理化学] O644.1[理学—化学]