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Physicochemical evaluation of the effect of natural zeolite modification with didodecyldimethylammonium bromide on the adsorption of Bisphenol-A and Propranolol Hydrochloride
Wastewater pollution by organic anions is of great interest. Surfactant-modified zeolites exhibit high adsorption of both organic and inorganic toxicants. Here, bisphenol-A and propranolol hydrochloride were adsorbed on natural zeolite modified with the cationic surfactant didodecyldimethylammonium...
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Published in: | Microporous and mesoporous materials 2021-04, Vol.318, p.111020, Article 111020 |
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Main Authors: | , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Wastewater pollution by organic anions is of great interest. Surfactant-modified zeolites exhibit high adsorption of both organic and inorganic toxicants. Here, bisphenol-A and propranolol hydrochloride were adsorbed on natural zeolite modified with the cationic surfactant didodecyldimethylammonium bromide with and without pretreatment of the zeolite with NaCl and HCl. Detailed physicochemical analysis shows chemisorption, electrostatic and hydrophobic interactions with the surfactant and bisphenol-A, and in the case of propranolol, also physisorption.
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•Salt treatment enhances zeolite - surfactant interaction.•Acid treatment partially destructs zeolite crystal framework.•Surfactant modification enhances organic pollutant adsorption.•Bisphenol-A adsorption includes chemisorption and hydrophobic interaction.•Propranolol hydrochloride adsorption includes physisorption. |
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ISSN: | 1387-1811 1873-3093 |
DOI: | 10.1016/j.micromeso.2021.111020 |