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采用低温水热法,以四氯化钛为钛源,尿素为氮源,聚乙二醇(PEG-4000)为分散剂,在较低的水热温度下合成了高分散氮掺杂纳米二氧化钛/氧化石墨烯(GO)复合材料,利用XRD、TEM、FT-IR、Raman对合成样品的晶型、形貌及结构进行了表征。以染料亚甲基蓝为目标降解物,以可见光为光源,对样品的光催化活性进行评价。结果表明,用水热法合成的高分散氮掺杂纳米二氧化钛/氧化石墨烯复合材料表现出良好的光催化活性。
Using low-temperature hydrothermal method, titanium tetrachloride as titanium source, urea as nitrogen source, polyethylene glycol (PEG-4000) as dispersant, at a lower hydrothermal temperature synthesized highly dispersed nitrogen-doped nano-titanium dioxide / Graphene oxide (GO) composites, the crystal structure, morphology and structure of the synthesized samples were characterized by XRD, TEM, FT-IR and Raman. The dye methylene blue was taken as the target degradation product, and the visible light was used as the light source to evaluate the photocatalytic activity of the sample. The results show that the hydrothermal synthesis of highly dispersed nitrogen-doped nano-titanium dioxide / graphene composites showed good photocatalytic activity.