燃料化学学报（中英文）2024，Vol.52Issue(1)：87-96,10.DOI:10.19906/j.cnki.JFCT.2023035
正负电荷关联转移促进的光催化低浓度苯酚矿化
Photocatalytic mineralization of low concentration phenol facilitated by transfer of positive and negative charges correlation
摘要
Abstract
Photocatalytic mineralization of recalcitrant contaminants such as phenol requires hydroxyl radicals(OH)for ring-opening reactions.Here,we weaken the adsorption of oxygen species on TiO2 surface by Al doping,which can effectively promote the photoinduced OH generation.Besides,Al doping can downshift the conduction band of TiO2.The resulted potential barrier lowering can promote semiconductor-cocatalyst interfacial electron transfer for the reduction half-reaction.Due to the strong correlation between positive and negative charges,the rapid transfer of electrons in the reduction half-reaction can also increase the concentration of holes in the semiconductor and promote the generation of OH.By immobilizing the photocatalyst on the light-incident inner wall of the reactor,it can avoid the competitive light absorption by the contaminant.By these virtues,efficient photocatalytic mineralization of low-concentration phenol in wastewater can be realized.关键词
苯酚/光催化/矿化/界面电子转移/TiO2Key words
phenol/photocatalytic/mineralization/interfacial electron transfer/TiO2分类
化学化工引用本文复制引用
高树功,魏旭晖,刘海峰,方峣,贾昆,向后奎,陈加藏..正负电荷关联转移促进的光催化低浓度苯酚矿化[J].燃料化学学报（中英文）,2024,52(1):87-96,10.基金项目
The project was supported by the National Natural Science Foundation of China(22172185,21773285).国家自然科学基金(22172185,21773285)资助 （22172185,21773285）
