碳基材料复合半导体光催化剂的制备及应用研究进展  

The research progress in preparation and application of carbon-based composite semiconductor photocatalyst

作　　者：张柯 王海旺[1,2] 刘可凡 黄谦 傅渭杰 王柄筑 ZHANG Ke;WANG Hai-wang;LIU Ke-fan;HUANG Qian;FU Wei-jie;WAN Bing-zhu(Northeastern University at Qinhuangdao,Qinhuangdao 066004,China;Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province,Qinhuangdao 066004,China;School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]东北大学秦皇岛分校,秦皇岛066004 [2]河北省电介质与电解质功能材料重点实验室,秦皇岛066004 [3]哈尔滨工业大学材料科学与工程学院,哈尔滨150001

出　　处：《炭素》2020年第1期23-35,共13页Carbon

基　　金：国家自然科学基金(21604007)

摘　　要：半导体光催化剂被广泛地应用于光催化领域,但其常因自身的禁带宽度较大、量子效率较低、催化效率较低、与反应物接触几率较低等因素在实际应用中受到诸多限制。而碳基材料作为一类结构稳定的新材料,具有稳定性强、导电能力强、比表面积大、包含大量的吸附位点等特性,与光催化剂复合之后,能够有效减小其禁带宽度、降低其载流子的复合率并为其提供更多的吸附位点,很大程度上提高了光催化剂的光催化性能。该文章以石墨烯、碳纳米管、富勒烯以及碳纤维等碳材料与各类半导体光催化剂复合为例,综述了碳基材料与光催化剂复合的工艺、提高其光催化性能的机理、影响碳基材料改性程度的因素及其在产氢、杀菌等方面的应用,并且对其进行了展望。Titanium dioxide is one of the most commonly used photocatalysts in the field of photocatalysis.However,it is often limited by many factors due to its large forbidden band width,low quantum efficiency,low catalytic efficiency,and low probability of contact with reactants.Meanwhile,as a new type of structurally stable material,carbon-based materials have strong stability,strong electrical conductivity,large specific surface area,and many adsorption sites.After compounded with titanium dioxide,carbon-based materials effectively reduce the forbidden band width as well as the recombination rate of its carriers,and provide more adsorption sites,it can greatly improve the photocatalytic performance of titanium dioxide.In this paper,based on the combination of titanium dioxide and carbon materials such as graphene,carbon nanotube,fullerenes and carbon fiber,it summarizes the process of compounding carbonbased materials with titanium dioxide,the mechanism of improving the photocatalytic performance of titanium dioxide,the factors affecting the degree of modification of carbon-based materials.The applications of composite materials in hydrogen production and sterilization are also summarized,and their future development is prospected.

关 键 词：石墨烯 碳纳米管 富勒烯 碳纤维 二氧化钛 光催化 

分 类 号：TQ032[化学工程]