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Effect of inorganic salts on ferric oxalate-induced decomposition of CI Acid Black 234 under different weather conditions / Yongchun Dong in COLORATION TECHNOLOGY, Vol. 124, N° 1 (2008)
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Titre : Effect of inorganic salts on ferric oxalate-induced decomposition of CI Acid Black 234 under different weather conditions Type de document : texte imprimé Auteurs : Yongchun Dong, Auteur ; Kuixiao Li, Auteur ; Rong Qi, Auteur ; Min Yang, Auteur ; Qiufang Wang, Auteur ; Luchun He, Auteur Année de publication : 2009 Article en page(s) : p. 19-26 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : In this study, sodium chloride and sodium sulphate were used for investigating their effects on photocatalytic decomposition of a triazo acid dye, CI Acid Black 234, used widely for the coloration of leather and wool products by the Feiii-oxalate complexes/hydrogen peroxide system under different weather conditions, respectively. Moreover, the photocatalytic degradation and mineralisation of CI Acid Black 234 was also examined by ultraviolet–visible spectrum and total organic carbon measurements. The results indicated that photocatalytic decoloration of CI Acid Black 234 was significantly limited in the presence of inorganic salt. Increasing the concentration of inorganic salt led to a lower decoloration percentage and kinetic reaction constant. The effect of inorganic salt on dye decomposition varied with solar light intensity. Sodium chloride exhibits a much stronger reduction effect on photocatalytic decoloration, degradation and mineralisation than sodium sulphate at similar reaction conditions, especially on a cloudy day. DOI : 10.1111/j.1478-4408.2007.00116.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00116.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3135
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