类Fenton试剂纳米ZnO/偕胺肟纤维的制备及光催化性能研究  

Preparation and Photo Catalytic Activity of ZnO/AOCF Fenton-like Catalyst

作　　者：葛鑫[1] 陶庭先[1] 王洁[1] 

机构地区：[1]安徽工程大学生物与化学工程学院,安徽芜湖241000

出　　处：《安徽工程大学学报》2017年第1期19-23,共5页Journal of Anhui Polytechnic University

基　　金：安徽省高校自然科学基金资助项目(KJ2014ZD03)

摘　　要：采用具有配位功能的偕胺肟纤维(AOCF)作为载体,利用配位-沉淀法将纳米ZnO负载在纤维表面,制备纳米ZnO/偕胺肟纤维类Fenton试剂(ZnO/AOCF).采用XRD、SEM和EDS对ZnO/AOCF晶体结构、形貌和表面成分进行分析表征.将甲基橙溶液的光催化降解作为评价体系,获得ZnO/AOCF最佳制备工艺条件为:对于0.3g AOCF,ZnCl2溶液为80mmol/L 50mL;配位时间为120min;碱浓度为0.1mmol/L,沉淀反应时间为4h;热分解温度为130℃,分解时间为6h.光催化实验结果最终表明,每克ZnO/AOCF可以催化降解35.475 0mg的甲基橙溶液;ZnO/AOCF对甲基橙溶液的类Fenton催化降解反应动力学遵循的是一级反应动力学规律.A Fenton-like catalyst ZnO/AOCF was prepared by ligand-precipitation method with AOCF as carrier.The surface morphology,crystal structure and surface composition of ZnO/AOCF were characterized by XRD,SEM and EDS.The results show that the optimum conditions of nano ZnO/amidoxime fiber catalyst were：for 0.3 g amidoxime fiber,the optimal concentration of ZnCl_2 solution was80mmol/L 50mL;best coordination time was 120min;base concentration was 0.1mmol/L,precipitation reaction time was 4h;thermal decomposition reaction time was 6hunder 130℃.Experimental results show：nano-ZnO/amidoxime fiber can per gram almost completely degrade 35.475 0mg methyl orange solution.Kinetics studies show that this kind of Fenton-like catalytic degradation reaction fits first-order kinetic model.

关 键 词：纳米ZNO 偕胺肟纤维 光催化 类FENTON 

分 类 号：X78[环境科学与工程—环境工程]