摘要
随着能源需求不断增加,太阳能成为具有发展潜力的清洁能源,长久有效使用太阳能成为迫切需要解决的问题.金属-有机框架(MOFs)衍生金属硫化物由于具有母体MOFs优异的原始结构特征、更窄的带隙、促进电荷载流子分离的多孔结构等优点,在光催化领域受到越来越多的关注.尽管该领域目前处于起步阶段,但目前所报道的研究结果表明MOFs衍生硫化物光催化剂具有很高的实际应用潜力.本文主要综述了近5年国内外MOFs衍生金属硫化物及其复合材料的制备方法及其在光催化领域应用的最新研究进展,并对此类光催化剂未来的发展与挑战进行了展望,为新型高效复合光催化材料的合成及应用提供了新思路.
Abstract
With the rapid development of society and economy,the demand for energy has been continuously increasing.Solar energy has emerged as a clean energy source with great development potential,and the long-term effective utilization of solar energy has become an urgent problem that needs to be addressed.Metal-organic frameworks(MOFs)derived metal sulfides retain the original structural characteristics of their parent MOFs,including large surface areas,dispersed nanoscale subunits,and abundant active sites.They overcome the limitations of MOFs in terms of material stability at high temperatures and harsh chemical environments.Moreover,compared to metal oxides,they have a narrower bandgap,which extends their light absorption range to the visible region.The porous nature of MOFs-derived metal sulfides also provides additional pathways for light-induced electron migration,promoting charge carrier separation.As a result,they have attracted increasing attention in the field of photocatalysis.Although this field is still in its nascent stage,the results obtained so far indicate that MOF-derived metal sulfides and their composite photocatalysts have high potential for practical applications.This article systematically elucidates the synthesis,performance,and mechanisms of MOFs-derived metal sulfide photocatalysts and their composites in various application areas,such as wastewater treatment,water splitting for hydrogen generation,and CO2 reduction.This will provide a new direction for the synthesis and application of novel and efficient composite photocatalytic materials.Additionally,some existing issues in current research are addressed,and the future prospects and challenges of MOFs-derived sulfide photocatalytic materials are discussed.
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