Abstract
Photothermal catalytic reduction of CO2 into high value-added C2 hydrocarbon products is a promising method for efficient CO2 conversion. However, current photocatalysts still encounter obstacles including limited photoabsorption range, rapid recombination of photogenerated carriers, and inadequate surface active sites. Herein, Bi4O5Br2 co-modified with oxygen vacancy (OV) and metal bismuth (Bi) (Bi4O5Br2-OV@Bi) has been prepared to optimize these crucial issues. Bi4O5Br2-OV@Bi delivers a remarkably improvement in CO2 photothermal conversion, reflecting by the notable increase in C1 (CO and CH4) and newly generated C2 (C2H4 and C2H6) products compared to pristine Bi4O5Br2. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) spectrometry reveals that OC−COH* intermediate promotes the C–C coupling for produce C2 hydrocarbons. This study strengthens the understanding of metal modification and defect engineering for forming C2 hydrocarbons on bismuth-based photocatalysts.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
