Adsorption Behavior of Chlorophenols on Natural Zeolite

Autor:	Bassam El-Eswed, Rushdi I. Yousef
Rok vydání:	2007
Předmět:	Aqueous solution Process Chemistry and Technology General Chemical Engineering Diffusion Inorganic chemistry Kinetics Filtration and Separation General Chemistry Dissociation (chemistry) chemistry.chemical_compound Adsorption chemistry Organic chemistry Phenol Phenols Zeolite
Zdroj:	Separation Science and Technology. 42:3187-3197
ISSN:	1520-5754 0149-6395
DOI:	10.1080/01496390701514873
Popis:	The adsorption of aqueous organic pollutants, i.e., phenol, monochlorophenols (2‐and 4‐), and dichlorophenols (2,4‐and 3,5‐) on natural Jordanian zeolitic tuff was studied. Three simplified kinetic models, viz., pseudo‐first order, pseudo‐second order, and intraparticle diffusion models were used to fit the kinetics data. The results revealed that at earlier stages of adsorption of phenols onto zeolite, the pseudo‐second order and the bulk diffusion rate constants are dependent on the acidity and the hydrophobicity of phenols. Whereas at later stages of adsorption, the adsorption capacity and the intraparticle diffusion rate constants are affected by the molecular size and the extent of dissociation of phenols.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::af36105fbbf20ad139156ade90308677 https://doi.org/10.1080/01496390701514873 Zobrazit plný text záznamu