Aluminosilicate Mineralogy and the Sorption of Organic Cations: Interplay between Electrostatic Barriers and Compound Structural Features

Autor:	William C. Jolin, Allison A. MacKay, Alissa Richard, Dharni Vasudevan, José A. Gascón
Rok vydání:	2020
Předmět:	Chemistry Static Electricity Sorption General Chemistry 010501 environmental sciences 01 natural sciences Chemical engineering Aluminosilicate Cations Environmental Chemistry Aluminum Silicates Adsorption Current (fluid) 0105 earth and related environmental sciences
Zdroj:	Environmental Science & Technology. 54:1623-1633
ISSN:	1520-5851 0013-936X
DOI:	10.1021/acs.est.9b06121
Popis:	Current predictive models of organic cation sorption assume that sorbates interact with all sites on aluminosilicate minerals in the same manner. To examine whether differences in aluminosilicate structure and the resultant changes in electrostatic potential influence the sorption of organic cations, seven smectites were chosen with different proportions of isomorphic substitutions (origin of clay charge) located in octahedral versus tetrahedral layers and with the presence or absence of aluminosilicate interlayers. Sorption coefficients for 14 benzylamine derivatives with systematic differences in compound structures were collected to understand the possible influence of aluminosilicate mineralogy. Benzylamine compounds with methyl group substitution on the charged amine or with electron-donating or -withdrawing ring substituents displayed decreases in cation exchange-normalized sorption coefficients (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b31c4d463557e168e867d8284aba873a https://doi.org/10.1021/acs.est.9b06121 Zobrazit plný text záznamu