石墨烯/TiO2复合材料光催化降解模拟染料废水的研究

The Study of Photocatalytic Degradation of Simulated Wastewater by Graphene/TiO2 Composites

采用石墨烯/TiO2复合材料对染料废水进行光催化降解.研究染料废水初始pH值、初始浓度、催化剂的加入量、不同系列染料(罗丹明B(rhodamine B,RhB)、亚甲基蓝(methylene blue,MB)、甲基橙(methyl orange,MO))对石墨烯/TiO2光催化性能的影响,结果表明石墨烯/TiO2光催化降解染料废水的最佳条件:溶液初始pH值为6,染料废水初始浓度为25 mg/L,石墨烯/TiO2为3 g/L,且60 min内罗丹明B溶液完全脱色.

Graphene/TiO2 composites were used for photocatalytic degradation of dye wastewater. The effects of initial pH, initial concentration of dye wastewater, the amount of catalyst and different dyes (rhodamine B (RhB)、 methylene blue (MB), methyl orange (MO)) on the photocatalytic properties of graphene/TiO2 were studied. The results showed that the optimum conditions for photocatalytic degradation of graphene/TiO2 dye wastewater were the initial pH value of the solution was 6, the initial concentration of dye wastewater was 25 mg/L, graphene/TiO2 was 3 g/L, and RhB was completely decolorized within 60 minutes.