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The mechanism of β‐ Carotene adsorption on activated montmorillonite
Author(s) -
Sarier Nihal,
Guler Cetin
Publication year - 1989
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02682609
Subject(s) - montmorillonite , adsorption , thermogravimetry , clay minerals , chemistry , carotene , infrared spectroscopy , mineral , carbonium ion , differential thermal analysis , hydrogen bond , lewis acids and bases , inorganic chemistry , ion , diffraction , mineralogy , molecule , catalysis , organic chemistry , physics , optics
The variations in the structure of mineral during adsorption have been examined comparing the results of X‐ray diffraction (XRD), differential thermal analysis (DTA), thermogravimetry (TG) and infrared (IR) spectroscopy of the acid activated montmorillonite clay mineral before and after adsorption of β‐carotene. Based on the results, it was concluded that β‐carotene attaches to the clay surface in the form of carbonium ions either by forming hydrogen bonds with Brönsted sites or by forming coordination bonds with Lewis sites of the activated clay mineral.