Cu_(x)O/Bi/Bi_(2)WO_(6)/BiOCl光热催化降解甲苯  

Photothermal catalytic degradation of toluene by Cu_(x)O/Bi/Bi_(2)WO_(6)/BiOCl

作　　者：方红莉 陈佳怡 曾文晶 吴素芹 张淼淼 袁少棠 芮泽宝 FANG Hong-li;CHEN Jia-yi;ZENG Wen-jing;WU Su-qin;ZHANG Miao-miao;YUAN Shao-tang;RUI Ze-bao(School of Chemical Engineering and Technology,Sun Yat-sen University,Zhuhai 519082,China;MHOME(Guangzhou)Industrial Co.,LTD,Guangzhou 510308,China)

机构地区：[1]中山大学化学工程与技术学院,广东珠海519082 [2]麦和(广州)实业有限公司,广东广州510308

出　　处：《中国环境科学》2023年第6期2788-2797,共10页China Environmental Science

基　　金：国家自然科学基金资助项目(21776322);广东省自然科学基金杰出青年基金项目(2022B1515020098)。

摘　　要：合成了具有紧密界面的Ⅱ型与Z型复合异质结光热催化剂Cu_(x)O/Bi/Bi_(2)WO_(6)/BiOCl.结果表明,基于多组分复合异质结上组分Bi纳米颗粒的表面等离子体共振效应、独特的多通道光生电荷传递与分离路径和适宜的用于产生活性自由基的氧化还原电位,Cu_(x)O/Bi/Bi_(2)WO_(6)/BiOCl展现出宽光响应范围、强光吸收、高效光生电荷分离性能和光热协同产含氧活性基团的性能、优异的光热协同催化净化甲苯的性能.在90℃加热耦合光(300mW/cm^(2),λ=200~2500nm)照射下,Cu_(x)O/Bi/Bi_(2)WO_(6)/BiOCl可在0.5h将甲苯气(0.0005%)完全矿化,优于相近条件下文献报道的结果.Type Ⅱ and Z scheme complex heterojunction Cu_(x)O/Bi/Bi_(2)WO_(6)/BiOCl with tight interfaces was synthesized.Based on the surface plasmon resonance effect of the component Bi nanoparticles,unique photogenerated charge transfer and separation route,and suitable redox potential for active oxygen species production,Cu_(x)O/Bi/Bi_(2)WO_(6)/BiOCl exhibited wide light response range,strong light absorption,and efficient photogenerated charge separation and active oxygen species production properties.Multicomponent complex heterojunction Cu_(x)O/Bi/Bi_(2)WO_(6)/BiOCl demonstrated excellent photothermal synergistic catalytic toluene degradation performance.Under 90°C coupling light(300mW/cm^(2),λ=200~2500nm)irradiation,0.0005%of toluene was completely mineralized on Cu_(x)O/Bi/Bi_(2)WO_(6)/BiOCl in 0.5h,ranging among the best performance of the reported photothermal catalysts under similar conditions.

关 键 词：VOCs Ⅱ型异质结 Z型异质结 光热协同催化 电荷传递 

分 类 号：X511[环境科学与工程—环境工程]