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以金红石型TiO_2、氧化石墨烯和氢氧化钠为反应剂,通过水热合成法制备了TiO_2纳米管-氧化石墨烯复合材料,并研究复合材料制备过程中水热温度、煅烧温度对制备材料结构性能的影响关系。结果发现,TiO_2纳米管-氧化石墨烯复合材料比纯TiO_2纳米管具有更好的光催化性能。石墨烯有利于TiO_2纳米管的形成,而且存在一个优化的加强光催化性性能的煅烧温度。TiO_2纳米管-氧化石墨烯复合材料在煅烧过程中,氧化石墨烯的还原与逐渐损失同TiO_2纳米管的结晶动态平衡,可能是其中存在优化煅烧温度的原因。同时分析了TiO_2纳米管-氧化石墨烯复合新材料的复合机理。
TiO 2 nanotubes-graphene oxide composites were prepared by hydrothermal synthesis method using rutile TiO 2, graphene oxide and sodium hydroxide as reactants. The effects of hydrothermal temperature and calcination temperature on the structure of materials The relationship between performance. The results show that TiO 2 nanotube-graphene oxide composite has better photocatalytic activity than pure TiO 2 nanotubes. Graphene favors the formation of TiO 2 nanotubes, and there is an optimized calcination temperature that enhances the photocatalytic properties. TiO 2 nanotube-graphene oxide composite material during the calcination process, the reduction of graphene oxide and the gradual loss of crystal structure with TiO 2 nanotubular dynamic equilibrium, which may be the reason why there is an optimum calcination temperature. At the same time, the composite mechanism of TiO 2 nanotube-graphene composite materials was analyzed.