为改善二氧化钛纳米材料在光催化降解废水有机物方面存在光生载流子复合率快等问题，基于石墨烯超高的电子迁移率，可控制备了二氧化钛/石墨烯复合材料，探究了二氧化钛形貌、石墨烯的掺杂对光催化性能的影响以及石墨烯的加入对二氧化钛形貌结构的影响。结果表明，石墨烯的掺杂提高了复合材料的吸附性能，花状二氧化钛/石墨烯、棒状二氧化钛/石墨烯表现出良好的光催化性能。

Photo-generated electronic-holes are easy to recombine when titanium dioxide (TiO₂) nano-materials are used in photocatalysis degradation of organic pollutants in wastewater.In order to solve this problem,graphene (GO),which has good conductivity,is used to prepare TiO₂/GO composites.The experiments are carried out to study the effect of the morphology of TiO₂ and the dosage of GO on the photocatalytic performance of the composites,and the effect of GO on the morphology of TiO₂.It is shown that the addition of GO improves the adsorption performance of the composites.Flower like and rod like TiO₂/GO composites have the best photocatalytic performance.

郭田辉(1994-),女,硕士研究生