Synergistic Effect of AuPd and NiOOH Cocatalysts Promoting Photoctalytic H_(2)O_(2)Production of BiVO_(4)Photocatalyst  

作　　者：QI Wenjing SHI Haiyang WANG Ping CHEN Feng WANG Xuefei YU Huogen 漆文菁;王雪飞;余火根

机构地区：[1]Department of Chemistry,School of Chemistry,Chemical Engineering and Life Sciences,Wuhan University of Technology,Wuhan 430070,China [2]Laboratory of Solar Fuel,Faculty of Materials Science and Chemistry,China University of Geosciences,Wuhan 430074,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2025年第2期344-352,共9页武汉理工大学学报(材料科学英文版)

基　　金：Funded by the National Natural Science Foundation of China(Nos.22178276,22178275,U22A20147,and 22075220);the Natural Science Foundation of Hubei Province of China(No.2022CFA001)。

摘　　要：BiVO_(4)is an ideal photocatalysts for H_(2)O_(2)generation due to its suitable band edge.In practice,however,the photocatalytic performance of BiVO_(4)is substantially low owing to the slow kinetics of 2e^(-)O_(2)reduction(2e^(-)ORR)and water oxidation(WOR)processes.To solve the problems,in this work,the AuPd alloy cocatalyst and the NiOOH cocatalys were modified on the electron(010)facets and the(110)hole facet of BiVO_(4)by photodeposition method.The designed AuPd/BiVO_(4)/NiOOH(0.5%)photocatalyst showed prominent photocatalytic H_(2)O_(2)production activity of 289.3μmmol_·L^(-1)with an AQE value of 0.89%at 420 nm,which was increased by 40 times compared with the BiVO_(4)sample(7.1μmmol_?L^(-1)).The outstanding photocatalytic activity of the AuPd/BiVO_(4)/NiOOH photocatalyst can be attributed to the synergistic effect of AuPd and NiOOH cocatalysts,which promoted the kinetics of oxygen reduction and water oxidation,and concurrently facilitated the charge separation.The present strategy of dual-cocatalyst rational assembly on different facets of BiVO_(4)provides an insight into explore efficient BiVO_(4)-based materials for H_(2)O_(2)production.

关 键 词：BiVO_(4) H_(2)O_(2) COCATALYST NIOOH photocatalysis 

分 类 号：TM9[电气工程—电力电子与电力传动]