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题名: NaNO2/FeCl3 catalyzed wet oxidation of the azo dye Acid Orange 7
作者: Peng, Yanrong1;  Fu, Dongmei1;  Liu, Renhua2;  Zhang, Feifang1;  Liang, Xinmiao1, 2
通讯作者: 梁鑫淼
关键词: wet oxidation ;  ferric chloride ;  sodium nitrite ;  azo dye ;  Acid Orange 7
刊名: CHEMOSPHERE
发表日期: 2008-03-01
DOI: 10.1016/j.chemosphere.2007.10.065
卷: 71, 期:5, 页:990-997
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1803
产权排名: 1;1
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: A combination of ferric chloride and sodium nitrite significantly improved the wet oxidation of the azo dye Acid Orange 7 (AO7) in acid aqueous media (pH 2.6) under moderate conditions (T = 150 degrees C) oxygen pressure = 0.5 MPa). To evaluate the catalytic system, wet oxidation of AO7 was carried out at temperatures between 90 and 150 degrees C and oxygen pressures ranging from 0.1 to 0.5 MPa. The effect of initial solution pH from 2.6 to 11.4 and the amount of catalyst on the degradation of AO7 were also investigated. AO7 initial concentration was kept 200 mg L-1. The degradation process was monitored by UV-visible spectroscopy, HPLC, IC (ion chromatography), GC-MS and TOC analysis. At 150 degrees C and 0.5 MPa oxygen pressure, 56% TOC was removed after 4 h of treatment, while no obvious TOC removal were achieved without catalyst at the same experimental condition. The main degradation products were some small organic acids: formic acid, acetic acid, pyruvic acid, oxalic acid, succinic acid (identified and quantified by IC) and phthalic acid (identified by GC-MS). (D 2007 Elsevier Ltd. All rights reserved.
关键词[WOS]: AIR OXIDATION ;  PHOTOCATALYTIC DEGRADATION ;  FENTONS REAGENT ;  WASTE-WATER ;  LIGHT IRRADIATION ;  HYDROGEN-PEROXIDE ;  ACTIVATED CARBON ;  MILD CONDITIONS ;  UV-IRRADIATION ;  REACTIVE DYES
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000254827000022
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100109
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.E China Univ Sci & Technol, Sch Pharm, Shanghai 200237, Peoples R China

Recommended Citation:
Peng, Yanrong,Fu, Dongmei,Liu, Renhua,et al. NaNO2/FeCl3 catalyzed wet oxidation of the azo dye Acid Orange 7[J]. CHEMOSPHERE,2008,71(5):990-997.
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