Removal of 2,4,6-trichlorophenol by iron and manganese oxides/granular activated carbon with H2O2

被引：1
作者：
Liu, Zhenzhong [1 ,2 ]
Deng, Huiping [2 ]
Chen, Zhanli [1 ]
机构：
[1] Nanchang Univ, Sch Architecture Engn, Jiangxi Nanchang 330031, Peoples R China
[2] Tongji Univ, Key Lab Yangtze River Water Environm, Shanghai 200092, Peoples R China
来源：
MATERIALS PROCESSING TECHNOLOGIES, PTS 1 AND 2 | 2011年 / 154-155卷
关键词：
2,4,6-Trichlorophenol; catalytic oxidation; granular activated carbon; DEGRADATION; OXIDATION; COMPOSITES; ADSORPTION; PHENOL; SYSTEM;
D O I：
10.4028/www.scientific.net/AMR.154-155.28
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Iron and manganese oxides/granular activated carbon composite (GACFM) was prepared via a chemical coprecipitation route, followed by a heat treatment at elevated temperature. The as prepared GACFM was characterized by X-ray diffraction (XRD) and infrared spectroscopy (FTIR). The main iron and manganese oxides actually present in the composites were mainly composed of Fe3O4,Mn3O4 and (FeO)(x)(MnO)(1-x). The adsorption and catalytic properties of GACFM and some conditions effects such as H2O2, pH, temperature and CO32- were studied for the removal of 2,4,6-trichlorophenol (TCP) from aqueous medium. The adsorption of TCP on GACFM obeyed the Freundlich isotherms. When the initial concentration of H2O2 was 0.4mg/L, 5mg/L TCP removal rate was maximum on the GACFM. The treatment of TCP could be carried out at initial pH under 7.0. CO32- can scavenge center dot OH in solution and decreased TCP removal. In the whole, GACFM was satisfactory absorbent and catalyst for the removal of chlorophenol from water.
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页码：28 / +
页数：2
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