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Preparation and Catalytic Property of Heterogeneous Fenton-Like Fe/SBA-15 Catalyst
Author(s): 
Pages: 205-209
Year: Issue:  2
Journal: Petrochemical Technology

Keyword:  Fe/SBA-15 catalystheterogeneous Fenton-like catalystcatalytic degradationmethylene blue;
Abstract: 采用浸渍法制备了负载型Fe/SBA-15催化剂,其与H2O2可构成非均相类芬顿催化剂,采用XRD、N2吸附-脱附分析、IR和TEM等手段对Fe/SBA-15催化剂进行表征.通过降解水中的亚甲基蓝研究催化剂的降解性能,考察催化剂中Fe含量、H2O2初始浓度和溶液初始pH等因素对亚甲基蓝降解率的影响.实验结果表明,Fe/SBA-15催化剂具有介孔结构,孔道均匀,平均孔径为5.534 nm,比表面积为483.5 m2/g;在溶液初始pH=3、H2O2初始浓度20 mmol/L、亚甲基蓝初始浓度2.5 mmol/L,Fe含量为0.9%(w)的Fe/SBA-15催化剂2g/L、17.5 ℃和90 min的条件下,亚甲蓝的降解率可达到96.36%; Fe/SBA-15催化剂连续重复使用3次仍具有良好的催化性能.
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