MIL-100(Fe) metal-organic framework catalyzed oxidation of phenol revisited: dark-Fenton activity of the catalyst

被引：23
作者：
Ozer, Demet [1 ]
Icten, Okan [1 ]
Altuntas-Oztas, Nursen [1 ]
Zumreoglu-Karan, Birgul [1 ]
机构：
[1] Hacettepe Univ, Fac Sci, Dept Chem, Ankara, Turkey
来源：
RESEARCH ON CHEMICAL INTERMEDIATES | 2020年 / 46卷 / 01期
关键词：
Metal-organic framework; MIL-100(Fe); Phenol oxidation; Fenton reaction; Hydrothermal synthesis; BET surface area; WASTE-WATER; DEGRADATION; IRON; ADSORPTION; PEROXIDE;
D O I：
10.1007/s11164-019-03997-9
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This work presents the Fenton-type aqueous-phase oxidation of phenol with two MIL-100(Fe) catalysts prepared by hydrothermal and reflux methods. The catalysts were systematically characterized by infrared spectroscopy, X-ray powder diffraction, thermogravimetry, scanning electron microscopy, and surface analysis techniques. The influence of various experimental parameters on the course of the oxidation process conducted at room temperature was examined. The catalysts showed significant stability when phenol/H2O2 = 1:1 molar ratio was applied. In this case, 93% conversion was obtained with minimal iron leaching (ca. 0.2%). The hydrothermally prepared MIL-100(Fe) catalyst displayed higher catalytic activity due to its larger surface area. The results were also discussed to evaluate the "dark-Fenton" contribution of the system in "photo-Fenton" reactions previously reported with similar catalysts for phenol oxidation. This study has demonstrated that dark-Fenton reaction with MIL-100(Fe) catalysts has an important contribution to the mineralization of phenol without requiring irradiation or ZnO assistance.
引用
收藏
页码：909 / 922
页数：14
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