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Distinct synergetic effects in the ozone enhanced photocatalytic degradation of phenol and oxalic acid with Fe3+/TiO2 catalyst
Xie, Yongbing; Chen, Yingying; Yang, Jin; Liu, Chenming; Zhao, He; Cao, Hongbin
2018-07-01
Source PublicationCHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
Volume26Issue:7Pages:1528-1535
Abstract

In this work, phenol and oxalic acid (OA) degradation in an ozone and photocatalysis integrated process was intensively conducted with Fe-3+/TiO2 catalyst. The ferrioxalate complex formed between Fe3+ and oxalate accelerated the removal of OA in the ozonation, photolysis and photocatalytic ozonation process, for its high reactivity with ozone and UV. Phenol was degraded in ozonation and photolysis with limited TOC removal rates, but much higher TOC removal was achieved in photocatalytic ozonation due to the generation of -OH. The sequence of UV light and ozone in the sequential process also influences the TOC removal, and ozone is very powerful to oxidize intermediates catechol and hydroquinone to maleic acid. Fenton or photo-Fenton reactions only played a small part in Fe3+/TiO2 catalyzed processes, because Fe3+ was greatly reduced but not regenerated in many cases. The synergetic effect was found to be highly related with the property of the target pollutants. Fe3+/TiO2 catalyzed system showed the highest ability to destroy organics, but the TiO2 catalyzed system showed little higher synergy. (C) 2017 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.

KeywordCatalysis Environment Waste Water fe3+/tio2 Synergistic Effect Photocatalytic Ozonation
DOI10.1016/j.cjche.2018.01.017
Language英语
WOS KeywordVisible-light Photocatalysis ; Ozonation ; Water ; Oxidation ; Tio2 ; Mineralization ; G-c3n4 ; Performance ; Pollutants ; Mechanism
Funding ProjectNatural Science Foundation of Beijing City[8172043] ; National Science Fund for Distinguished Young Scholars[51425405] ; National Natural Science Foundation of China[51378487]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNatural Science Foundation of Beijing City ; National Science Fund for Distinguished Young Scholars ; National Natural Science Foundation of China
WOS IDWOS:000441682400013
PublisherCHEMICAL INDUSTRY PRESS
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/25547
Collection中国科学院过程工程研究所
Corresponding AuthorCao, Hongbin
AffiliationChinese Acad Sci, Inst Proc Engn, Div Environm Technol & Engn, Beijing Engn Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Xie, Yongbing,Chen, Yingying,Yang, Jin,et al. Distinct synergetic effects in the ozone enhanced photocatalytic degradation of phenol and oxalic acid with Fe3+/TiO2 catalyst[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2018,26(7):1528-1535.
APA Xie, Yongbing,Chen, Yingying,Yang, Jin,Liu, Chenming,Zhao, He,&Cao, Hongbin.(2018).Distinct synergetic effects in the ozone enhanced photocatalytic degradation of phenol and oxalic acid with Fe3+/TiO2 catalyst.CHINESE JOURNAL OF CHEMICAL ENGINEERING,26(7),1528-1535.
MLA Xie, Yongbing,et al."Distinct synergetic effects in the ozone enhanced photocatalytic degradation of phenol and oxalic acid with Fe3+/TiO2 catalyst".CHINESE JOURNAL OF CHEMICAL ENGINEERING 26.7(2018):1528-1535.
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