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用静电自组装法合成了三元复合材料β_2-SiW_(11)Ti/PANI/ZnO,并用红外光谱、紫外光谱、XRD、SEM进行表征,研究了该催化材料对孔雀石绿降解的催化活性。讨论了催化剂投加量、孔雀石绿溶液的初始浓度、p H对催化降解效果的影响。结果表明,当溶液p H为1、催化剂用量为0.001 g、孔雀石绿初始浓度为10 mg/L,在30 W紫外灯下照射180 min,脱色率可达95.55%。与一元催化剂β2-Si W11Ti、β2-Si W11和二元催化剂PANI/ZnO比较,三元催化剂β_2-SiW_(11)Ti/PANI/ZnO表现出更高的光催化降解性能,光催化降解孔雀石绿为一级动力学反应。
The ternary composite β_2-SiW_ (11) Ti / PANI / ZnO was synthesized by electrostatic self-assembly method and characterized by IR, UV, XRD and SEM. The catalytic activity of the catalytic material for malachite green degradation was studied. The effects of catalyst dosage, initial concentration of malachite green solution and p H on catalytic degradation were discussed. The results showed that the decolorization rate was 95.55% when the pH of the solution was 1, the amount of the catalyst was 0.001 g, the initial concentration of malachite green was 10 mg / L and the irradiation time was 180 min under 30 W UV light. Compared with uniformed catalysts β2-Si W11Ti, β2-Si W11 and binary catalysts PANI / ZnO, the ternary catalyst β_2-SiW_ (11) Ti / PANI / ZnO showed higher photocatalytic degradation performance, Green for a dynamic reaction.