Efficient CO2 capture and photoreduction by amine-functionalized TiO2

Abstract

Amine-functionalization of TiO2 nanoparticles, through a solvothermal approach, substantially increases the affinity of CO2 on TiO2 surfaces through chemisorption. This chemisorption allows for more effective activation of CO2 and charge transfer from excited TiO2 , and significantly enhances the photocatalytic rate of CO2 reduction into methane and CO.

Keywords: CO2 capture; TiO2; amine functionalization; photocatalysis; solar fuels.