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Sorption of Bisphenol A as Model for Sorption Ability of Organoclays

Garikoe, Issaka and Guel, Boubie and Persson, Ingmar (2022). Sorption of Bisphenol A as Model for Sorption Ability of Organoclays. Molecules (Basel, Switzerland). 27 :14 , 4343
[Research article]

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Abstract

The arrangement of bisphenol A molecules into organoclays and their interactions with the intercalated surfactant were studied. The organoclays were prepared via solid-state intercalation of four cationic surfactants, such as dodecyltrimethyl-, tetradecyltrimethyl-, hexadecyltrimethyl-, and didodecyldimethyl-ammonium, as bromide salts, at different loading levels into the interlayers of two natural clays. The natural clays, the prepared organoclays, and the spent organoclays were characterized by X-ray powder diffraction, infrared spectroscopy, and scanning electron microscopy. X-ray powder diffraction measurements showed successive interlayer expansions of the d(001) basal spacing due to the intercalation of the cationic surfactants and the bisphenol A sorption. The increased d(001) basal spacing of the organoclays after bisphenol A sorption indicates that the molecules are integrated between the alkyl chains of the surfactant in the organoclays interlayers. Infrared spectroscopy was employed to probe the intercalation of the cationic surfactants and the sorbed bisphenol A. New characteristic bands attributed to the bisphenol A phenol rings appear in the range 1518-1613 cm(-1) on the infrared spectra of the spent organoclays, proving the presence of bisphenol A in the hydrophobic interlayers. Scanning electron microscopy of the organoclays before and after BPA sorption shows that their morphology becomes fluffy and that the presence of the organic molecules expands the clay structure.

Authors/Creators:Garikoe, Issaka and Guel, Boubie and Persson, Ingmar
Title:Sorption of Bisphenol A as Model for Sorption Ability of Organoclays
Series Name/Journal:Molecules (Basel, Switzerland)
Year of publishing :2022
Volume:27
Number:14
Article number:4343
Number of Pages:16
Publisher:MDPI
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 104 Chemical Sciences > Materials Chemistry
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Biochemistry and Molecular Biology
Keywords:smectite, organoclays, surfactant, intercalation, hydrophobicity, rearrangement, expansion, interaction, partitioning process, Ca-montmorillonite
URN:NBN:urn:nbn:se:slu:epsilon-p-118594
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-118594
Additional ID:
Type of IDID
DOI10.3390/molecules27144343
Web of Science (WoS)000832389800001
ID Code:28732
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Molecular Sciences
Deposited By: SLUpub Connector
Deposited On:02 Sep 2022 06:30
Metadata Last Modified:12 Sep 2022 08:20

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