基于FeZSM-5催化剂的类Fenton体系氧化降解日落黄FCF研究  

Degradation of Sunset Yellow FCF in Fenton-like oxidation based on FeZSM-5 catalyst

作　　者：杨慧敏 陈泉源[1,2] Yang Huimin;Chen Quanyuan(College of Environment Science and Engineering,Donghua University,Shanghai 201620,China;Shanghai Institute of Pollution Control and Ecological Safety,Shanghai 200092,China)

机构地区：[1]东华大学环境科学与工程学院,上海201620 [2]上海市污染防治与生态安全研究院,上海200092

出　　处：《工业催化》2020年第6期75-81,共7页Industrial Catalysis

基　　金：国家重点研究发展计划项目(No.2016YFC0400502);中央高校基本科研业务费(No.19D111321)。

摘　　要：采用等体积浸渍法制备FeZSM-5作为异相类Fenton氧化催化剂,使用XRD、FT-IR对FeZSM-5进行表征,探究反应温度、初始pH值、H2O2初始浓度、催化剂用量以及铁负载量对FeZSM-5催化H2O2氧化降解日落黄FCF脱色的影响,考察催化剂循环使用性能。结果表明,铁以Fe2O3形态存在于分子筛孔道内;FeZSM-5催化剂活性受反应温度影响较大,在最适宜条件下,铁负载质量分数为3.5%的FeZSM-5催化剂在FeZSM-5/H2O2类Fenton氧化反应体系中对日落黄FCF模拟废水脱色率达97.0%,且循环使用性能较好。FeZSM-5 was prepared by equal volume impregnation method for a catalyst in Fenton-like oxidation. XRD and FT-IR were used to characterize FeZSM-5. Effects of reaction temperature,initial pH,initial H2O2 concentration,catalyst dosage and iron loading amount on the oxidation of Sunset Yellow FCF in FeZSM-5/H2O2 systems were investigated. The reusability of FeZSM-5 catalyst was also examined. It was found that iron existed in pores of the molecular sieve in the form of Fe2O3. The catalytic activity of FeZSM-5 was greatly affected by temperature. In the optimal condition,decolorization of Sunset Yellow FCF in simulated wastewater reached 97.0% in FeZSM-5/H2O2 Fenton-like oxidation reaction system and FeZSM-5( iron loading mass fraction of 3.5%) exhibited a good recycling performance.

关 键 词：催化化学 等体积浸渍法 FeZSM-5催化剂 类FENTON氧化 脱色 日落黄FCF 

分 类 号：O643.36[理学—物理化学] X703[理学—化学]