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Degradation and transformation of atrazine under catalyzed ozonation process with TiO2 as catalyst
Alternative TitleJ. Hazard. Mater.
Yang Yixin1,2,3; Cao Hongbin2,3; Peng Pai4; Bo Hongmiao5
2014-08-30
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
Volume279Issue:AUGPages:444-451
AbstractDegradation of atrazine by heterogeneously catalyzed ozonation was carried out with TiO2 in the form of rutile as the catalyst. Some experimental factors such as catalyst dose, ozone dose and initial concentration of atrazine were investigated for their influence on catalyzed ozonation process. Although atrazine was effectively removed from aqueous solution by catalyzed ozonation process, the mineralization degree only reached 56% at the experimental conditions. Five transformation products were identified by GC/MS analysis. The degradation of atrazine involved de-alkylation, de-chlorination and de-amination. Diaminotriazine and 5-azauracil were the de-chlorinated and de-aminated products, respectively. The evolution of concentration of transformation products during catalyzed ozonation process was compared with uncatalyzed ozonation to show the degradation pathway. Toxicity tests based on the inhibition of the luminescence emitted by Vibrio fisheri indicated the detoxification of atrazine by catalyzed ozonation. (C) 2014 Elsevier B.V. All rights reserved.; Degradation of atrazine by heterogeneously catalyzed ozonation was carried out with TiO2 in the form of rutile as the catalyst. Some experimental factors such as catalyst dose, ozone dose and initial concentration of atrazine were investigated for their influence on catalyzed ozonation process. Although atrazine was effectively removed from aqueous solution by catalyzed ozonation process, the mineralization degree only reached 56% at the experimental conditions. Five transformation products were identified by GC/MS analysis. The degradation of atrazine involved de-alkylation, de-chlorination and de-amination. Diaminotriazine and 5-azauracil were the de-chlorinated and de-aminated products, respectively. The evolution of concentration of transformation products during catalyzed ozonation process was compared with uncatalyzed ozonation to show the degradation pathway. Toxicity tests based on the inhibition of the luminescence emitted by Vibrio fisheri indicated the detoxification of atrazine by catalyzed ozonation. (C) 2014 Elsevier B.V. All rights reserved.
KeywordCatalyzed Ozonation Ozone Tio2 Atrazine Transformation Products
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1016/j.jhazmat.2014.07.035
URL查看原文
Indexed BySCI
Language英语
WOS KeywordADVANCED OXIDATION PROCESSES ; DRINKING-WATER TREATMENT ; OZONE DECOMPOSITION ; TOXICITY ASSESSMENT ; KINETICS ; CARBON ; UV ; PHOTODEGRADATION ; METABOLITES ; MECHANISMS
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Engineering, Civil ; Environmental Sciences
WOS IDWOS:000343390100054
Citation statistics
Cited Times:41[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11692
Collection研究所(批量导入)
Affiliation1.Qinhuangdao Dist Northeastern Univ, Sch Resources & Mat, Qinhuangdao 066004, Peoples R China
2.Chinese Acad Sci, Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
4.Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110819, Peoples R China
5.Taiyuan Univ Technol, Coll Environm Sci & Engn, Taiyuan 030024, Peoples R China
Recommended Citation
GB/T 7714
Yang Yixin,Cao Hongbin,Peng Pai,et al. Degradation and transformation of atrazine under catalyzed ozonation process with TiO2 as catalyst[J]. JOURNAL OF HAZARDOUS MATERIALS,2014,279(AUG):444-451.
APA Yang Yixin,Cao Hongbin,Peng Pai,&Bo Hongmiao.(2014).Degradation and transformation of atrazine under catalyzed ozonation process with TiO2 as catalyst.JOURNAL OF HAZARDOUS MATERIALS,279(AUG),444-451.
MLA Yang Yixin,et al."Degradation and transformation of atrazine under catalyzed ozonation process with TiO2 as catalyst".JOURNAL OF HAZARDOUS MATERIALS 279.AUG(2014):444-451.
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