Effect of Fe(III) / citrate concentrations and ratio on the photoproduction of hydroxyl radicals / Xiaonan Feng in Industrial & engineering chemistry research, Vol. 51 N° 20 (Mai 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 20 (Mai 2012) . - pp. 7007–7012 Titre : Effect of Fe(III) / citrate concentrations and ratio on the photoproduction of hydroxyl radicals : Application on the degradation of diphenhydramine Type de document : texte imprimé Auteurs : Xiaonan Feng, Auteur ; Zongping Wang, Auteur ; Chen, Yong, Auteur Année de publication : 2012 Article en page(s) : pp. 7007–7012 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Hydroxyl radicals Diphenhydramine Résumé : Fe(III)-citrate complexes are photoreactive and ubiquitous in natural waters. In this study, the effect of Fe(III)/citrate concentrations and ratio on the photoproduction of •OH as a function of pH (3–9) was systematically investigated. The •OH formation mechanism was elucidated according to the pH-dependent formation rate of •OH and the speciation distribution analysis of Fe(III) species. At high Fe(III)-to-citrate ratio (10:50), the •OH photoproduction increased with decreasing pH. In contrast, the •OH photoproduction increased in the order of pH 9.0 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300360p [article] Effect of Fe(III) / citrate concentrations and ratio on the photoproduction of hydroxyl radicals : Application on the degradation of diphenhydramine [texte imprimé] / Xiaonan Feng, Auteur ; Zongping Wang, Auteur ; Chen, Yong, Auteur . - 2012 . - pp. 7007–7012. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 20 (Mai 2012) . - pp. 7007–7012 Mots-clés : Hydroxyl radicals Diphenhydramine Résumé : Fe(III)-citrate complexes are photoreactive and ubiquitous in natural waters. In this study, the effect of Fe(III)/citrate concentrations and ratio on the photoproduction of •OH as a function of pH (3–9) was systematically investigated. The •OH formation mechanism was elucidated according to the pH-dependent formation rate of •OH and the speciation distribution analysis of Fe(III) species. At high Fe(III)-to-citrate ratio (10:50), the •OH photoproduction increased with decreasing pH. In contrast, the •OH photoproduction increased in the order of pH 9.0 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300360p

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