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作 者:汪家喜[1] 魏晓骏 沈佳宇[1] 吕晓萌[1] 谢吉民[1] 陈敏[1]
出 处:《化学进展》2014年第9期1460-1470,共11页Progress in Chemistry
基 金:国家自然科学基金项目(No.21003065)资助~~
摘 要:光催化反应比传统催化反应条件温和,不但能利用太阳能作为光源,同时,也避免了一些强氧化剂、危险还原剂和有毒物质的使用,极大地满足了人们对能源和环境的要求。通过优化光催化体系可以实现对目标产物的选择性合成,从而为有机合成提供一种绿色、节能的途径。本文综述了近年来光催化选择性合成有机物的催化剂类型,影响选择性因素和提高选择性的途径,重点就光催化材料的晶型、催化剂的合成与表面修饰、溶剂种类、催化条件等因素在聚合反应、芳香族的羟基化反应、胺的氧化反应、烯烃环氧化反应、羰基反应选择性合成有机物方面作一评述,并对光催化在选择性合成有机物的研究和进展进行了展望。Photocatalytic reactions take place under much milder conditions compared to conventional catalytic systems,and can make full use of solar energy as the light source. Also,photocatalytic reactions avoids the use of powerful oxidants,hazardous reductants and toxic substances,which meet the demand of energy saving and environment protection. Photocatalysts are low-cost,nontoxic,possess stable physical and chemical properties and high activity on organic compounds synthesis even after used several times. The high selective activity to target product can be achieved by optimizing the photocatalytic reaction system,thus offering a green and energyefficient route for organic compounds synthesis. The type of catalysts on photocatalytic selective synthesis of organic compounds,influencing factors of selectivity and the way to improve the selectivity in recent years are reviewed in this paper. The review especially focuses on crystal form of photocatalysts,synthesis and surface modification of catalysts,different tapes of solvents,conditions of photocatalytic reaction and other factors to the organic synthesis of photocatalytic selective,such as polymerization,hydroxylation of aromatic,oxidation of amine,epoxidation of olefins and carbonylation. Finally,the application and development of photocatalysis in selective organic synthesis are prospected.
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