MODIFICATION OF WASTES OF PAN-FIBERS FOR ADSORPTION APPLICATIONS

SIMITZIS, J

dc.contributor.author	SIMITZIS, J	en
dc.date.accessioned	2014-03-01T01:44:00Z
dc.date.available	2014-03-01T01:44:00Z
dc.date.issued	1995	en
dc.identifier.issn	0003-3146	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/24253
dc.subject.classification	Polymer Science	en
dc.subject.other	KINETICS	en
dc.title	MODIFICATION OF WASTES OF PAN-FIBERS FOR ADSORPTION APPLICATIONS	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1995	en
heal.abstract	Wastes of acrylic fibers were chemically modified in order to obtain adsorbents. The fibers were thermally treated with aqueous solutions of H2SO4 or NaOH at various concentrations. The adsorption ability of the modified acrylic fibers and commercial adsorbents for comparison reasons was evaluated on the basis of dye-adsorption of methylene blue (having electron donor groups) and alizarin yellow (having mainly electron acceptor groups). The chemical structure of the modified acrylic fibers was determined by IR spectroscopy. The experimental results of the dye adsorption were theoretically treated by using a diffusion-limited adsorption method, which was applied for short reaction times. Adsorption kinetics parameters and the diffusion coefficients were calculated. The electron donor-acceptor (EDA) interactions between the functional groups of the polymers and those of the dyes influence strongly the adsorption process. The modified acrylic fibers adsorb both dyes better than the commercial adsorbents.	en
heal.publisher	HUTHIG & WEPF VERLAG	en
heal.journalName	ANGEWANDTE MAKROMOLEKULARE CHEMIE	en
dc.identifier.isi	ISI:A1995RJ12300002	en
dc.identifier.volume	228	en
dc.identifier.spage	13	en
dc.identifier.epage	24	en