石墨烯基二氧化钛纳米复合材料制备及光催化性能

Preparation and photocatalytic properties of graphene based nano composite materials

本文在180℃下通过溶剂热法RGO／TiO2纳米复合材料，并利用SEM对RGO／TiO2纳米复合材料的晶体形貌进行了表征，同时将复合材料应用于光催化降解甲基橙溶液，进行光催化性能评价。结果表明：随着溶剂热时间的延长，氧化石墨烯表面的活性基团减少，还原更加彻底，同时Ti02晶粒有一定的增大趋势；和纯TiO2相比，RGO／TiO2纳米复合材料光催化活性明显提高，石墨烯含量对复合材料的光催化活性有直接的影响。

In this paper, RGO/Ti02 nano composite materials was synthesized under the temperature of 180 ℃ by solvothermal method and the use of SEM crystal morphology of RGO/TiO2 nano composite materials were characterized, and the composite material used in photocatalytic degradation of methyl orange solution. To evaluate the photocatalytic performance. The results show that the increase of the time of the solvent, the active groups on the surface of graphene oxide decreased, the reduction was more complete, and the TiO2 crystal had a certain increasing trend. Compared with pure RGO/TiO2, the photocatalytic activity of TiO2 nano composites was significantly increased, and the content of graphene had a direct influence on the photocatalytic activity of the composite.