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采用溶胶-凝胶法制备了5-(4-羧基亚甲氧基)苯基-10,15,20-三萘基卟啉合锌(Cmp TNPP(Zn))敏化Al_2O_3/Ti O_2得到了Cmp TNPP(Zn)/Al_2O_3/Ti O_2复合材料.实验中采用UV-Vis DRS、XRD、FT-IR、TG和SEM等手段对该复合材料进行表征.用亚甲基蓝(MB)溶液模拟废水,评价了该复合材料在可见光辐照下的光催化活性.结果表明,Cmp TNPP(Zn)和Al_2O_3的加入并未对Ti O_2的晶体结构产生影响.Cmp TNPP(Zn)的加入能有效地提高Al_2O_3/Ti O_2粉体对可见光的吸收,明显提高了该复合材料的光催化活性,亚甲基蓝的降解率在80 min内达到95.5%.并且发现Cmp TNPP(Zn)/Al_2O_3/Ti O_2催化材料重复使用5次后,仍然保持一定的降解效果.
The sensitized Al_2O_3 / TiO_2 with 5- (4-carboxymethoxy) phenyl-10,15,20-trinaphthylporphyrin (Cmp TNPP (Zn)) was prepared by sol- The composites were characterized by means of UV-Vis DRS, XRD, FT-IR, TG and SEM etc. The wastewater was simulated by methylene blue (MB) solution to evaluate the effect of Cmp TNPP (Zn) / Al 2 O 3 / The results show that the addition of Cmp TNPP (Zn) and Al 2 O 3 have no effect on the crystal structure of Ti O 2. The addition of Cmp TN PP (Zn) can effectively improve the photocatalytic activity of Al 2 O 3 / Ti O_2 powder can obviously increase the photocatalytic activity of the composite, the degradation rate of methylene blue reaches 95.5% in 80 min, and the catalytic activity of Cmp TNPP (Zn) / Al 2 O 3 / Ti O 2 catalyst , Still maintain a certain degree of degradation.