【摘要】 氧化降解是治理有机废水的常用方法之一，但是降解过程中形成的小分子物质可能会对水体形成二次污染。鉴于此，将Zn₃In₂S₆包埋在明胶/壳聚糖/聚吡咯（Gel/CS/PPy）凝胶中制备出Gel/CS/PPy/Zn₃In₂S₆复合材料，实现凝胶吸附和光催化降解相耦合。通过扫描电镜（SEM）、傅里叶变换红外光谱（FT-IR）、紫外可见光谱（UV-vis-NIR）对材料的结构及性能进行表征。以酸性品红（AF）为处理对象，开发出吸附富集和原位降解相结合的综合处理方法。Gel/CS/PPy凝胶体系可将AF从污染水体中转移到凝胶内，实现AF的大容量吸附富集，吸附效率可以达到93.74%,凝胶中的Zn₃In₂S₆可以将吸附的AF氧化降解，并再生吸附位点。最终Gel/CS/PPy/Zn₃In₂S₆可重复利用至少6次以上，处理效率保持在90%以上。更多还原

【Abstract】 Oxidative degradation is one of the common methods to treat organic wastewater, but the small molecules formed in the degradation process may cause secondary pollution to the water.In view of this, Gel/CS/PPy/Zn₃In₂S₆ composites were prepared by embedding Zn₃In₂S₆ in Gel/CS/PPy gel which had the ability of gel adsorption and photocatalytic degradation.The structure and properties of the materials were characterized by scanning electron microscopy（SEM）, Fourier transform infrared spectroscopy（FT-IR） and ultraviolet-visible spectroscopy（UV-vis-NIR）.Taking acid fuchsin（AF） as the treatment object, a comprehensive treatment method combining adsorption enrichment and in-situ degradation was developed.The Gel/CS/PPy gel is conducive to the large-capacity adsorption of AF, and the adsorption efficiency can reach 93.74%.The Zn₃In₂S₆ in the gel can oxidize and degrade the adsorbed AF to regenerate the adsorption sites.Gel/CS/PPy/Zn₃In₂S₆ can be reused at least 6 times, and the processing efficiency remains above 90%.更多还原