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题名: Catalytic wet peroxide oxidation of m-cresol over Fe/gamma-Al2O3 and Fe-Ce/gamma-Al2O3
作者: Liu, Pei-Juan1, 2;  Wei, Huang-Zhao1;  He, Song-Bo1;  Sun, Cheng-Lin1
关键词: Fe/gamma-Al2O3 ;  Fe-Ce/gamma-Al2O3 ;  m-cresol ;  non-lattice oxygen ;  catalytic wet peroxide oxidation ;  influence of reaction parameters
刊名: CHEMICAL PAPERS
发表日期: 2015-06-01
DOI: 10.1515/chempap-2015-0028
卷: 69, 期:6, 页:827-838
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Catalytic wet peroxide oxidation (CWPO) of m-cresol over Fe/gamma-Al2O3 and Fe-Ce/gamma-Al2O3 was studied. Catalysts were prepared using the incipient wetness impregnation method, and characterized using XRD, XPS, BET, and SEM techniques. Effects of Ce loading, H2O2 dose, initial solution pH, reaction temperature, and m-cresol concentration on the CWPO of m-cresol were investigated in detail. The results showed that an addition of 2 mass % Ce into Fe/gamma-Al2O3 resulted in better catalytic activity over a wider pH range and at lower reaction temperatures, and with lower H2O2 consumption than when using the Fe/gamma-Al2O3 catalysts only. The best catalytic activity was obtained using the Fe-Ce-2 catalyst with complete m-cresol degradation, 43.2 % TOC removal using 100 mmol L-1 H2O2 at pH 4.0 and 60 degrees C in 90 min. XPS showed that an addition of 2 mass % Ce increased the density of non-lattice oxygen on the catalyst surface facilitating electron transfer and thereby producing radicals and promoting catalytic activity in the CWPO reaction. Recycling experiments showed that Fe-Ce-2 retained its activity even after six subsequent runs without changing the morphology, and that iron ions did not significantly leach from the catalyst surface. (C) 2014 Institute of Chemistry, Slovak Academy of Sciences
关键词[WOS]: PHENOL SOLUTIONS ;  FENTON OXIDATION ;  DEGRADATION ;  SYSTEMS ;  FE ;  WASTEWATERS ;  REMOVAL ;  CERIUM ;  CEO2 ;  ACID
语种: 英语
WOS记录号: WOS:000351636300007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146095
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, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Liu, Pei-Juan,Wei, Huang-Zhao,He, Song-Bo,et al. Catalytic wet peroxide oxidation of m-cresol over Fe/gamma-Al2O3 and Fe-Ce/gamma-Al2O3[J]. CHEMICAL PAPERS,2015,69(6):827-838.
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