Solar active fire clay based hetero-Fenton catalyst over a wide pH range for degradation of Acid Violet 7

查看全文 作　　者：Inbasekaran [1]Muthuvel;Balu [1]Krishnakumar;Meenakshisundaram [1]Swaminathan

机构地区：[1]Department of Chemistry,Annamalai University,Annamalainagar 608002,India.

出　　处：《Journal of Environmental Sciences》索引2012年第24卷第3期,共7页

基　　金：the Ministry of Environment and Forests (MOEF), New Delhi, for the financial support through research grant No.315-F-36, F. No. 19/9/2007-RE 摘　　要：Fe(III) immobilized fire clay (Fe-FC) was prepared using ferric nitrate by solid state dispersion method and this hetero-Fenton catalyst was applied for the degradation of Acid Violet 7 (AV 7) under natural sunlight. The 26% ferric nitrate loaded fire clay was found to be most efficient. The experimental conditions such as solution pH, H2O2 concentration for efficient degradation of AV 7 have been determined. Unlike Fenton catalyst, Fe-FC is photoactive over a wide pH range of 3-7. This catalyst was found to be stable and reusable. The GC-MS analysis of experimental solutions during irradiation revealed the formation of 2,8-diaminonaphthalene-1,3,6- triol, 8-aminonaphthalene-1,2,3,6-tetrol, 2-aminonaphthalene-1,3,6,8-tetrol and 2-aminobenzene-1,3-diol/5-aminonbenzene-1,3-diol/ 2-aminobenzene-1,4-diol as intermediates. The 26% ferric nitrate loaded fire clay was characterized by XRD, ICP-AES, BET surface area, FT-IR, SEM-EDS and UV-DRS studies. 关键词：耐火粘土 pH范围高效降解催化剂太阳活动酸性 ICP-AES法 GC-MS分析

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Solar active fire clay based hetero-Fenton catalyst over a wide pH range for degradation of Acid Violet 7

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