Equilibrium studies of adsorption of amino acids on NaZSM-5 zeolite

Autor:	A. K. Kalkar, E. Titus, Vilas G. Gaikar
Rok vydání:	2003
Předmět:	chemistry.chemical_classification Inorganic chemistry technology industry and agriculture Tryptophan Langmuir adsorption model Phenylalanine Amino acid symbols.namesake Colloid and Surface Chemistry Adsorption chemistry Selective adsorption symbols Organic chemistry Freundlich equation Zeolite
Zdroj:	Colloids and Surfaces A: Physicochemical and Engineering Aspects. 223:55-61
ISSN:	0927-7757
DOI:	10.1016/s0927-7757(03)00131-6
Popis:	The adsorption of amino acids such as phenylalanine, alanine, tyrosine and tryptophan on highly hydrophobic NaZSM-5 zeolite were studied. Selective adsorption of phenylalanine and tyrosine were observed. The single component adsorption isotherms were fitted in Langmuir model. For the amino acids considered in this work, the isotherms are essentially independent of pH, but they vary significantly with the temperature. Heats of adsorption were obtained from van't Hoff plots of the Henry's law constant limit of the Langmuir isotherm and found to be higher for more hydrophobic solute.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bac6e64cd6e4780faa47ef1d9fccd71e https://doi.org/10.1016/s0927-7757(03)00131-6 Zobrazit plný text záznamu Full Text from ScienceDirect