Alkalized MQDs/Bi2S3 Porous Structure for Efficient Photocatalytic CO2 Reduction

Abstract Finding effective and specific catalytic materials for the transformation of carbon dioxide into fuel is indisputably a significant challenge. In this study, 3D porous sphere structure MXene quantum dot/Bi 2 S 3 (MBS) composites were prepared using electrostatic self‐assemblage of protonated Bismuth sulphide nanoparticles (Bi 2 S 3 NSs) with Ti 3 C 2 (OH) 2 QDs (MQDs‐OH). The optimized MBS material demonstrates an excellent narrow band gap (Eg=1.24 V (vs. NHE)) and high selectivity and efficiency in catalyzing CH 3 OH, delivering impressive yields of up to 694.7 μmol/g. This study may lead to a new approach to the development of multidimensional photocatalysts for CH 3 OH production by adsorption of atmospheric CO 2 .