Abstract Wastewater from the printing and dyeing industry is an area of growing concern. Photocatalysts synthesized using polyaniline (PANI) and certain metal oxides have been increasingly used for the purpose owing to their high photocatalytic potential, ease of synthesis, and ease of recycle and reuse. Herein, a ternary composite α-SiW11Cr/PANI/ZnO was prepared by electrostatic self-assembly, and characterized by infrared (IR) spectroscopy, diffraction of X-rays, scanning electron microscopy, etc. N2 adsorption-desorption showed that the composite had a bimodal pore system for mesoporous materials. Catalytic activity of α-SiW11Cr/PANI/ZnO for photodegradation of organic dye malachite green under UV irradiation was studied. Compared with single materials, ternary composites have better photocatalytic performance. Graphical Abstract

中文翻译：

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三元复合催化剂α-SiW11Cr/PANI/ZnO的合成、表征及光催化性能

摘要 印染行业的废水是一个日益受到关注的领域。使用聚苯胺 (PANI) 和某些金属氧化物合成的光催化剂因其高光催化潜力、易于合成以及易于回收和再利用而越来越多地用于此目的。在本文中，通过静电自组装制备了三元复合材料 α-SiW11Cr/PANI/ZnO，并通过红外 (IR) 光谱、X 射线衍射、扫描电子显微镜等进行了表征。N2 吸附-解吸表明该复合材料具有用于介孔材料的双峰孔系统。研究了α-SiW11Cr/PANI/ZnO在紫外光照射下光降解有机染料孔雀石绿的催化活性。与单一材料相比，三元复合材料具有更好的光催化性能。图形概要