Enhancement of CO_(2)photoreduction efficiency by supporting blue TiO_(2)with photonic crystal substrate  

作　　者：Dengpeng Lan Wenting Sheng Qianqian Fu Jianping Ge 

机构地区：[1]School of Chemistry and Molecular Engineering,Shanghai Key Laboratory of Green Chemistry and Chemical Processes,East China Normal University,Shanghai 200062,China [2]Institute of Eco-Chongming,Shanghai 202162,China

出　　处：《Nano Research》2023年第7期9310-9317,共8页纳米研究（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Nos.22172054 and 21972046).

摘　　要：The catalytic performance of TiO_(2)in photoreduction of CO_(2)is limited by its weak absorption in the visible range.In this work,a photonic crystal supported blue TiO_(2)photocatalyst(BTPC)was prepared to demonstrate a 5-6 times higher activity and improved CH_(4)selectivity compared to the BT catalysts deposited on quartz plate.By investigating the influence of the reflection intensity and wavelength of PC support,the superior catalytic performance was found to be originated from the enhanced light absorption of BT and the increased surface electron density brought by the PC support.Based on the study of BT loading on support,multilayer BTPC catalyst was designed to take the most advantage of the transmitted light and achieve a higher conversion of CO_(2)in the unit area of irradiation.

关 键 词：blue TiO_(2) PHOTOCATALYST photonic crystal support CO_(2) photo reduction 

分 类 号：O64[理学—物理化学]