Chemical Engineering Discipline, School of Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway, 46150, Selangor, Malaysia.
ChemSusChem. 2012 Oct;5(10):1868-82. doi: 10.1002/cssc.201200480. Epub 2012 Sep 14.
Graphene is one of the most promising materials in the field of nanotechnology and has attracted a tremendous amount of research interest in recent years. Due to its large specific surface area, high thermal conductivity, and superior electron mobility, graphene is regarded as an extremely attractive component for the preparation of composite materials. At the same time, the use of photocatalysts, particularly TiO(2), has also been widely studied for their potential in addressing various energy and environmental-related issues. However, bare TiO(2) suffers from low efficiency and a narrow light-response range. Therefore, the combination of graphene and TiO(2) is currently one of the most active interdisciplinary research areas and demonstrations of photocatalytic enhancement are abundant. This Review presents and discusses the current development of graphene-based TiO(2) photocatalysts. The theoretical framework of the composite, the synthetic strategies for the preparation and modification of graphene-based TiO(2) photocatalysts, and applications of the composite are reviewed, with particular attention on the photodegradation of pollutants and photocatalytic water splitting for hydrogen generation.
石墨烯是纳米技术领域最有前途的材料之一，近年来引起了极大的研究兴趣。由于其具有较大的比表面积、高热导率和优异的电子迁移率，石墨烯被视为制备复合材料的极具吸引力的成分。同时，光催化剂，特别是 TiO(2)的使用也因其在解决各种能源和环境相关问题方面的潜力而得到广泛研究。然而，裸露的 TiO(2)效率低，光响应范围窄。因此，石墨烯和 TiO(2)的结合是目前最活跃的跨学科研究领域之一，展示了丰富的光催化增强效果。本综述介绍并讨论了基于石墨烯的 TiO(2)光催化剂的最新发展。讨论了复合材料的理论框架、基于石墨烯的 TiO(2)光催化剂的制备和修饰策略以及复合材料的应用，特别关注污染物的光降解和光催化水分解制氢。
