掺杂锌的二氧化钛与石墨烯复合物的制备及性能研究

Preparation and Properties of Zinc Doped Titania and Graphene Complexes

对新型的锌掺杂二氧化钛光催化剂的制备进行了探讨,采用制备方法是溶胶凝胶法,通过研究催化剂制备中锌掺杂的比例、与煅烧温度等对降解水体中的盐酸四环素处理效果.通过一系列表征方法对分析复合材料,含氧官能团在水热法处理下被大部分移除.锌掺杂二氧化钛纳米颗粒分散在石墨烯片层表面,二者通过化学键紧密结合.制备此种催化剂的比例是石墨烯氧化物与锌掺杂二氧化钛的质量之比为1∶20,采用140℃的水热温度.制备的新型催化剂材料可以有效处理废水中的盐酸四环素,在今后的污水处理领域大有可为.

In this paper,the preparation of a new type of zinc doped titanium dioxide photocatalyst is discussed.The preparation method is sol-gel method.The effect of the proportion of zinc doping in the preparation of catalyst and the calcining temperature on tetracycline hydrochloride in the degrading water body is studied.A series of characterization methods are used to analyze the composites,and the oxygen functional groups are largely removed by hydrothermal treatment.Zinc doped titanium dioxide nanoparticles are dispersed on the surface of graphene sheets,and the two are tightly bonded by chemical bonds.The ratio of the preparation of the catalyst is that the mass ratio of graphene oxide to zinc doped titanium dioxide is 1:20,and the water temperature at 140 degrees Celsius is adopted.The new catalyst material can effectively treat tetracycline hydrochloride in wastewater,which is promising in the future sewage treatment field.