Gel/CS/PPy/Zn_(3)In_(2)S_(6)凝胶对酸性品红的综合处理  

Comprehensive treatment of acid fuchsin with Gel/CS/PPy/Zn_(3)In_(2)S_(6)hydrogel

作　　者：邢建宇 黄菊梅 王西 杨飞莹 白玥皓 单宇宸 XING Jian-yu;HUANG Ju-mei;WANG Xi;YANG Fei-ying;BAI Yue-hao;SHAN Yu-chen(School of Water and Environment,Ministry of Education,Chang′an University,Xi′an 710054,Shaanxi Province,China;Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region,Ministry of Education,Chang′an University,Xi′an 710054,Shaanxi Province,China;SINO Shaanxi Nuclear Industry Comprehensive Analysis Testing Co.,Ltd.,Xi′an 710024,Shaanxi Province,China)

机构地区：[1]长安大学水利与环境学院,陕西西安710054 [2]长安大学旱区地下水文与生态效应教育部重点实验室,陕西西安710054 [3]中陕核工业集团综合分析测试有限公司,陕西西安710024

出　　处：《化学工程》2023年第4期12-17,共6页Chemical Engineering(China)

基　　金：陕西省教育厅科学研究计划项目资助(22JE003);省级大学生创新创业训练计划项目(S202210710219)。

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Zn_(3)In_(2)S_(6)包埋在明胶/壳聚糖/聚吡咯(Gel/CS/PPy)凝胶中制备出Gel/CS/PPy/Zn_(3)In_(2)S_(6)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Zn_(3)In_(2)S_(6)可以将吸附的AF氧化降解,并再生吸附位点。最终Gel/CS/PPy/Zn_(3)In_(2)S_(6)可重复利用至少6次以上,处理效率保持在90%以上。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/Zn_(3)In_(2)S_(6)composites were prepared by embedding Zn_(3)In_(2)S_(6)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 Zn_(3)In_(2)S_(6)in the gel can oxidize and degrade the adsorbed AF to regenerate the adsorption sites.Gel/CS/PPy/Zn_(3)In_(2)S_(6)can be reused at least 6 times,and the processing efficiency remains above 90%.

关 键 词：Zn_(3)In_(2)S_(6) 聚吡咯 吸附 光催化降解 

分 类 号：X52[环境科学与工程—环境工程]