Highly Active Heterogeneous Fenton-like Systems Based on Fe3O4 Nanoparticles

被引：7

作者：

Wang, Wei ^{[1
]}

Li, Tielong ^{[1
]}

Liu, Ying ^{[1
]}

Zhou, Minghua ^{[1
]}

机构：

[1] Nankai Univ, Coll Environm Sci & Engn, Minist Educ, Key Lab Pollut Proc & Environm Criteria, Tianjin 300071, Peoples R China

来源：

FUNDAMENTAL OF CHEMICAL ENGINEERING, PTS 1-3 | 2011年 / 233-235卷

关键词：

Heterogeneous catalysts; Fenton-like systems; Fe3O4; nanoparticles; phenol; PHENOL; OXIDATION;

D O I：

10.4028/www.scientific.net/AMR.233-235.487

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this work, magnetic nanoscale Fe3O4 particles were synthesized through coprecipitation of Fe(II) and Fe(III) in alkaline media. The structure, composition and properties of the nanoparticles prepared were characterized by transmission electron microscope (TEM), X-ray diffractometer (XRD), X-ray photoelectron spectroscopy (XPS) and vibrating sample magnetometer (VSM). Catalytic efficiency of the Fe3O4 nanoparticles was tested in degradation of phenol solution. At pH 7, the chemical oxygen demand (COD) removal rate reached 70% in 3 hours. The heterogeneous catalyst exhibited efficient catalytic activity close to that of iron homogeneous catalyst but with less than 3% leaching of irons cation. Further, it performed well under much wider pH range (pH 3 similar to 7) compared to classic Fenton reagent, providing potential alternative as a novel heterogeneous Fenton catalyst for environmental remediation.

引用

页码：487 / 490

页数：4

共 9 条

[1] Synthesis of Fe3O4 nanoparticles with various sizes and magnetic properties 14 by controlled hydrolysis [J].