Ion exchange of some heavy metal ions from polar organicsolvents into zeolite

Inglezakis, VJ; Loizidou, MD

dc.contributor.author	Inglezakis, VJ	en
dc.contributor.author	Loizidou, MD	en
dc.date.accessioned	2014-03-01T01:26:32Z
dc.date.available	2014-03-01T01:26:32Z
dc.date.issued	2007	en
dc.identifier.issn	0011-9164	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18115
dc.subject	Clinoptilolite	en
dc.subject	Heavy metals	en
dc.subject	Ion exchange	en
dc.subject	Organic solvents	en
dc.subject	Zeolites	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Water Resources	en
dc.subject.other	Heavy metals	en
dc.subject.other	Infrared spectrometers	en
dc.subject.other	Metal ions	en
dc.subject.other	Solvents	en
dc.subject.other	Ultraviolet spectrometers	en
dc.subject.other	Zeolites	en
dc.subject.other	Clinoptilolite	en
dc.subject.other	Heavy metal ions	en
dc.subject.other	Polar organic solvents	en
dc.subject.other	Ion exchange	en
dc.subject.other	Heavy metals	en
dc.subject.other	Infrared spectrometers	en
dc.subject.other	Ion exchange	en
dc.subject.other	Metal ions	en
dc.subject.other	Solvents	en
dc.subject.other	Ultraviolet spectrometers	en
dc.subject.other	Zeolites	en
dc.subject.other	cation	en
dc.subject.other	clinoptilolite	en
dc.subject.other	heavy metal	en
dc.subject.other	ion exchange	en
dc.subject.other	solvent	en
dc.subject.other	spectrometry	en
dc.subject.other	zeolite	en
dc.title	Ion exchange of some heavy metal ions from polar organicsolvents into zeolite	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.desal.2006.02.094	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.desal.2006.02.094	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	In the present study the possibility of ion exchange of heavy metal ions using polar organic solvents and natural zeolite clinoptilolite is approached. The organic solvents used are nearly pure ethanol and acetone. These solvents are compared to deionized water. The heavy metal ions studied are Cu2+ Cr3+ and Fe3+. While ion exchange levels in water are much greater for Fe3+ (53.1%) in comparison to ethanol (12.5%) and acetone (3.1%), Cr3+ is exchanged in satisfactory levels in ethanol (46.8 and 27.4% respectively) and Cu2+ in acetone (23.8 and 26.6% respectively). Infrared (IR) and ultraviolet/visible (UV-Vis) spectrometry showed that complexes are formed, which are different in each solvent. It is concluded that the cation-solvent complex strength and charge, the possible rejection of loosely attached solvent molecules, the formation of precipitates, the properties of the solvent and free cations and the diameter of zeolite pore openings are all affecting the uptake of metals. Finally, the ion exchange of metals using zeolites is possible to take place in polar organic solvents and one significant finding is that selectivity can be totally changed.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Desalination	en
dc.identifier.doi	10.1016/j.desal.2006.02.094	en
dc.identifier.isi	ISI:000247826800025	en
dc.identifier.volume	211	en
dc.identifier.issue	1-3	en
dc.identifier.spage	238	en
dc.identifier.epage	248	en