材料科学与工程学报2025，Vol.43Issue(4)：520-524,5.DOI:10.14136/j.cnki.issn1673-2812.2025.04.002
MAPbI3/TiO2复合异质结的可见光光催化还原二氧化碳
Visible-light Photocatalytic Reduction of Carbon Dioxide by MAPbI3/TiO2 Composite Heterojunction
摘要
Abstract
Halide perovskite,with its broad-spectrum absorption and efficient photogenerated charge characteristics,has drawn widespread attention duo to its potential application in the field of photocatalysis.In this work,TiO2 was introduced as an electron transport layer to enhance the charge separation and transmission efficiency of halide perovskite.By using the cooling-saturated solution method,a uniformly distributed and highly efficient MAPbI3/TiO2 composite photocatalyst was successfully prepared.In the process of visible-light photocatalytic CO2 reduction,this composite demonstrated superior performance,with efficiency significantly increasing to 21 times that of MAPbI3,reaching 223.20 μmol·g-1·h-1,and the reduction products were H2 and CH4.Furthermore,the use of ultrasonic external field and perovskite piezoelectric effect could further enhance the photocatalytic CO2 reduction activity of the MAPbI3/TiO2 composite heterojunction and effectively alleviate its attenuation phenomenon.This work provides a new technical approach and perspective for the application of halide perovskite in the field of photocatalysis.关键词
MAPbI3/TiO2复合异质结/压电光催化/二氧化碳光还原/钙钛矿光催化材料Key words
MAPbI3/TiO2 heterojunction/Piezoelectricity/CO2 reduction/Perovskite photocatalyst分类
通用工业技术引用本文复制引用
周楚同,刘家龙,毕仁可,沈漪杰,王智宇..MAPbI3/TiO2复合异质结的可见光光催化还原二氧化碳[J].材料科学与工程学报,2025,43(4):520-524,5.基金项目
国家自然科学基金资助项目(51872258) （51872258）
