二维材料在光催化二氧化碳还原中的研究进展

近几十年来,由温室效应所导致的气候变暖、海平面上升等环境问题日趋严重,科学家们一直致力于研究可高效转化二氧化碳(CO2)等温室气体的技术.以太阳能为驱动力的光催化技术,可将CO2转化成甲烷、甲醇、甲酸或C2+等高附加值的碳氢燃料,同时缓解温室效应和能源危机.二维(2D)材料因具有超大的比表面积和独特的电子结构,在光催化...

Research Progress of Photocatalytic CO2Reduction Based on Two-dimensional Materials

In past decades,global warming,sea level rising,and other climate problems caused by greenhouse effect are becoming more and more serious.Considerable efforts have been paid on developing new technology that can effectively reduce the atmospheric level of carbon dioxide(CO₂),the most representative one of greenhouse gases.Solar-driven conversion of CO₂into high value-added hydrocarbon fuels is considered as the most promising approach to alleviate the current energy crisis and the rising CO₂level.Benefiting from their high specific surface area and novel electronic structures,two dimensional(2D)materials have drawn intense interest in the field of CO₂photoreduction.Herein,the latest development of 2D materials for photocatalytic CO₂reduction is presented,with special emphasis given to the structure-activity relationship in catalytic reactions.The potentials of newly emerged 2D materials including black phosphorus,graphdiyne and covalent organic frameworks as the next generation photocatalysts for CO₂reduction are then discussed.Finally,the opportunities and challenges in the field of CO₂photoreduction are featured on the basis of its current development.