CoTCPP integrates with BiOBr microspheres for improved solar-driven CO_(2)reduction performance  

作　　者：Lina Li Yi Zhang Gaopeng Liu Tiange Wei Junze Zhao Bin Wang Mengxia Ji Yuanbin She Jiexiang Xia Huaming Li 

机构地区：[1]School of Chemistry and Chemical Engineering,Institute for Energy Research,Jiangsu University,301 Xuefu Road,Zhenjiang,212013,China [2]State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology,College of Chemical Engineering,Zhejiang University of Technology,Hangzhou,310014,China

出　　处：《Green Energy & Environment》2025年第1期193-202,共10页绿色能源与环境（英文版）

基　　金：financially supported by National Natural Science Foundation of China(Nos.22138011,22108106 and 22108108);China Postdoctoral Science Foundation(Nos.2022M721380 and 2020M680065);Hong Kong Scholar Program(XJ2021021).

摘　　要：CO_(2) photoreduction into carbon-based chemicals has been considered as an appropriate way to alleviate the energy issue and greenhouse effect.Herein,the 5,10,15,20-tetra(4-carboxyphenyl)porphyrin cobalt(II)(CoTCPP)has been integrated with BiOBr microspheres and formed the CoTCPP/BiOBr composite.The as-prepared CoTCPP/BiOBr-2 composite shows optimized photocatalytic performance for CO_(2) conversion into CO and CH_(4) upon irradiation with 300 W Xe lamp,which is 2.03 and 2.58 times compared to that of BiOBr,respectively.The introduced CoTCPP significantly enhanced light absorption properties,promoted rapid separation of photogenerated carriers and boosted the chemisorption of CO_(2) molecules.The metal Co^(2+) at the center of the porphyrin molecules also acts as adsorption center for CO_(2) molecules,accelerating the CO_(2) conversion into CO and CH_(4).The possible mechanism of CO_(2) photoreduction was explored by in-situ FT-IR spectra.This work offers a new possibility for the preparation of advanced photocatalysts.

关 键 词：BiOBr CoTCPP CO_(2)photoreduction Carriers transfer CO_(2)adsorption-activation 

分 类 号：TK519[动力工程及工程热物理—热能工程] X701[环境科学与工程—环境工程] O643.36[理学—物理化学] O644.1[理学—化学]