The ever increasing global demand for energy has stimulated a new wave of research activity on efficient utilization of solar energy.Photocatalysis is a promising pathway in the direct transformation of solar energy to chemical energy and has attracted increasing attention.Metal-organic frameworks (MOFs),which have both of the characteristics of semiconductor and zeolite,have emerged as a new kind of potential photocatalyst.After years of development,MOFs have been used in a variety of photocatalytic applications,such as hydrogen evolution,environmental remediation and organic transformations.Among these various applications,the use of MOFs in photocatalytic organic transformations has become the focus of current research.In this review,we summarized the recent progress towards the application of MOFs in photocatalytic organic transformations including CO2 reduction,redox reactions and some complex light-induced organic reactions like tandem reaction and C-C coupling reaction.New strategies to improve the photocatalytic efficiency of MOFs were illustrated.We also provided a detailed discussion on the development of MOFs as a kind of multifunctional photocatalysts.Finally,the existing problems and the opportunities as well as the challenges of MOFs in this field were also evaluated and anticipated.%能源紧缺和环境污染是目前人类面临的两个严峻的问题,因此寻找和开发新型绿色能源成为当前研究的热点之一.太阳能是一种绿色无污染并且可再生的能源,将太阳能转换为有用的化学能是解决能源和环境问题的有效途径之一.金属有机框架材料(MOFs)是一类由金属或金属-氧单元通过有机配体连接形成的具有周期性网络结构的三维多孔材料.MOFs不仅具有与分子筛类似的拓扑结构,而且其金属-氧单元可以看做分立的半导体量子点,具有类似半导体的性质.因此,MOFs作为一类很有潜力的光催化材料吸引了广大研究学者的注意,并已经在光解水产氢、污染物降解以及光催化有机合成等领域得到一些应用.其中,MOFs在光催化有机合成中的应用成为近几年的研究热点.总结了MOFs材料在光催化氧化、CO2还原以及一些复杂的光诱导有机合成中的应用;同时以光还原CO2为模型反应,对提高MOFs光催化性能的方法进行了总结和分析,充分展示了MOFs基材料在光催化应用中的优越性;最后,对MOFs在光催化有机合成中的应用前景进行了展望,强调了将MOFs的光催化特性与金属/配体/客体分子等的催化性能结合,发展多功能的MOFs光催化材料的发展前景.
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