摘要
提高太阳光吸收能力和电荷分离效率对TiO_(2)基光催化剂实现高效CO_(2)光还原具有重要意义。通过在TiO_(2)纳米片同步引入氧空位和Au团簇,构建了TiO_(2−x)-Au团簇。TiO_(2−x)与Au团簇之间的协同作用增强了可见光吸收、光诱导电荷分离和迁移过程,这对促进CO_(2)光转化具有重要意义。合成的TiO_(2−x)-Au团簇增强了光催化CO_(2)还原为CO的能力,其中TiO_(2−x)-Au_(4.985)团簇的光催化性能最好,CO产率9.45μmol/(g·h)明显优于纯TiO_(2−x)和TiO_(2)。本研究为开发新型TiO_(2)基光催化剂提供了新的见解和启示。
It is important to improve the absorption capacity of sunlight and charge separation efficiency to achieve efficient CO_(2)photoreduction with TiO_(2)-based photocatalyst.In this paper,TiO_(2−x)-Au clusters were constructed by introducing oxygen vacancy and Au clusters into TiO_(2)nanosheets simultaneously.The synergistic interaction between TiO_(2−x)and Au clusters enhanced visible light absorption,photoinduced charge separation and migration processes,which had important significance for promoting CO_(2)photoconversion.The photocatalytic reduction of CO_(2)to CO was enhanced by the synthesized TiO_(2−x)-Au clusters.The TiO_(2−x)-Au4.985 clusters displayed the CO yield of 9.45μmol/(g·h),which was significantly better than that of pure TiO_(2−x)and TiO_(2).Our findings provided new insights and implications for the development of novel TiO_(2)-based photocatalysts.
作者
肖立
岐少鹏
周昆
薄雅楠
王秀林
姚辉超
戴若云
隋依言
XIAO Li;QI Shaopeng;ZHOU Kun;BO Yanan;WANG Xiulin;YAO Huichao;DAI Ruoyun;SUI Yiyan(Technology R&D Center,CNOOC Gas&Power Group,Beijing 100028,China;School of Nuclear Science and Technology,University of Science and Technology of China,Hefei 230026,Anhui,China)
出处
《化工进展》
北大核心
2025年第6期3062-3071,共10页
Chemical Industry and Engineering Progress
基金
中国海洋石油集团有限公司“十四五”重大科技项目CCUS专项课题三子课题“二氧化碳光电催化技术研究”(KJGG-2022-12-CCUS-030500)。
作者简介
第一作者:肖立(1991-),男,硕士研究生,研究方向为流体力学。E-mail:xiaoli6@cnooc.com.cn。
