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题名: Removal of salicylic acid on perovskite-type oxide LaFeO3 catalyst in catalytic wet air oxidation process
作者: Yang, Min;  Xu, Aihua;  Du, Hongzhang;  Sun, Chenglin;  Li, Can
通讯作者: 孙承林 ;  李灿
关键词: catalytic wet air oxidation (CWAO) ;  perovskite-type oxide LaFeO3 catalyst ;  salicylic acid ;  intramolecular H-bonding
刊名: JOURNAL OF HAZARDOUS MATERIALS
发表日期: 2007-01-02
DOI: 10.1016/j.jhazmat.2006.06.001
卷: 139, 期:1, 页:86-92
收录类别: SCI
文章类型: Article
部门归属: 9
项目归属: 902,503
产权排名: 1;1
WOS标题词: Science & Technology ;  Technology ;  Life Sciences & Biomedicine
类目[WOS]: Engineering, Environmental ;  Engineering, Civil ;  Environmental Sciences
研究领域[WOS]: Engineering ;  Environmental Sciences & Ecology
英文摘要: It has been found that salicylic acid can be removal effectively at the lower temperature of 140 degrees C on perovskite-type oxide LaFeO3 catalyst in the catalytic wet air oxidation (CWAO) process. Under the same condition, the activities for the CWAO of phenol, benzoic acid and sulfonic salicylic acid have been also investigated. The results indicated that, with compared to the very poor activities for phenol and benzoic acid, the activities for salicylic acid and sulfonic salicylic acid were very high, which are attributed to their same intramolecular H-bonding structures. With the role of hard acidity of intramolecular H-bonding, salicylic acid and sulfonic salicylic, acid can be adsorbed effectively on the basic center of LaFeO3 catalyst and are easy to take place the total oxidation reaction. However, at temperatures higher than 140 degrees C, the intramolecular H-bonding structure of salicylic acid was destroyed and the activities at 160 and 180 degrees C decreased greatly, which confirms further the key role of intramolecular H-bonding in the CWAO. Moreover, the LaFeO3 catalyst also indicated a superior stability of activity and structure in CWAO of salicylic acid. (c) 2006 Elsevier B.V. All rights reserved.
关键词[WOS]: WASTE-WATER ;  ORGANIC-COMPOUNDS ;  SOL-GEL ;  DECOMPOSITION ;  PLATINUM ;  METALS ;  PHENOL ;  MN
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000243609300013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/97929
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, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Yang, Min,Xu, Aihua,Du, Hongzhang,et al. Removal of salicylic acid on perovskite-type oxide LaFeO3 catalyst in catalytic wet air oxidation process[J]. JOURNAL OF HAZARDOUS MATERIALS,2007,139(1):86-92.
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