Chlorophyll adsorption on acid-activated clay
Küçük Resim Yok
Tarih
1992
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
An acid-activated clay (Çanakkale montmorillonite from Turkey) was used to adsorb chlorophyll from hexane solutions. The phenomenon seems to be mainly driven by the interaction of chlorophyll with acid sites. The adsorption of chlorophyll on Brönsted acid sites was indicated by a characteristic infrared band for the -OH group at 3671 cm-1. The variations in the structure of clay mineral and chlorophyll during adsorption have been examined by differential thermal analysis, thermogravimetry and infrared spectroscopy of the activated clay before and after adsorption of chlorophyll. Oxidation of adsorbed chlorophyll was completed at quite a high temperature. © 1992, American Oil Chemists’ Society. All rights reserved.
Açıklama
Anahtar Kelimeler
Activated clay, adsorption, Brönsted acid sites, chlorophyll, decolorization, differential thermal analysis, infrared, Lewis acid sites, montmorillonite, thermogravity
Kaynak
Journal of the American Oil Chemists Society
WoS Q Değeri
Scopus Q Değeri
Q2
Cilt
69
Sayı
9
