Effect of nonionic surfactants on the solubilization of alachlor

Xiarchos, I; Doulia, D

dc.contributor.author	Xiarchos, I	en
dc.contributor.author	Doulia, D	en
dc.date.accessioned	2014-03-01T01:24:03Z
dc.date.available	2014-03-01T01:24:03Z
dc.date.issued	2006	en
dc.identifier.issn	0304-3894	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17186
dc.subject	Alachlor	en
dc.subject	Kinetics	en
dc.subject	Micelle	en
dc.subject	Solubilization	en
dc.subject	Surfactants	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	Alachlor	en
dc.subject.other	Critical micelle concentration (CMC)	en
dc.subject.other	Kinetics	en
dc.subject.other	Solubilization	en
dc.subject.other	Alcohols	en
dc.subject.other	Hydrophilicity	en
dc.subject.other	Mathematical models	en
dc.subject.other	Micelles	en
dc.subject.other	Surface active agents	en
dc.subject.other	Ultrafiltration	en
dc.subject.other	Pesticides	en
dc.subject.other	alachlor	en
dc.subject.other	alcohol derivative	en
dc.subject.other	nonionic surfactant	en
dc.subject.other	octoxinol	en
dc.subject.other	pesticide	en
dc.subject.other	surfactant	en
dc.subject.other	triton x 100	en
dc.subject.other	triton x 102	en
dc.subject.other	triton x 114	en
dc.subject.other	unclassified drug	en
dc.subject.other	Alcohols	en
dc.subject.other	Hydrophilicity	en
dc.subject.other	Mathematical models	en
dc.subject.other	Micelles	en
dc.subject.other	Pesticides	en
dc.subject.other	Surface active agents	en
dc.subject.other	Ultrafiltration	en
dc.subject.other	alachlor	en
dc.subject.other	kinetics	en
dc.subject.other	pollution control	en
dc.subject.other	solubilization	en
dc.subject.other	surfactant	en
dc.subject.other	ultrafiltration	en
dc.subject.other	water treatment	en
dc.subject.other	aqueous solution	en
dc.subject.other	article	en
dc.subject.other	chemical structure	en
dc.subject.other	concentration (parameters)	en
dc.subject.other	hydrophilicity	en
dc.subject.other	kinetics	en
dc.subject.other	micelle	en
dc.subject.other	physical chemistry	en
dc.subject.other	solubilization	en
dc.subject.other	ultrafiltration	en
dc.subject.other	Acetamides	en
dc.subject.other	Algorithms	en
dc.subject.other	Herbicides	en
dc.subject.other	Kinetics	en
dc.subject.other	Solubility	en
dc.subject.other	Surface-Active Agents	en
dc.title	Effect of nonionic surfactants on the solubilization of alachlor	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jhazmat.2006.01.027	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jhazmat.2006.01.027	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	The ability of nonionic surfactants to solubilize the pesticide alachlor was studied. Two homologue series, octylphenol ethoxylates (Triton X-114, Triton X-100 and Triton X-102) and ethoxylated decyl alcohols (Neodol 91-5E, Neodol 91-6E and Neodol 91-8E) were used at concentrations 3 critical micelle concentration (CMC) and 6 CMC. The rate of solubilization of a sufficient quantity of alachlor (for saturation) in aqueous solution containing the micelles of nonionic surfactant was recorded. The experimental data were fitted to a first-order kinetic model. The rate constant, saturation concentration and enhancement factor were estimated for each surfactant system. The effect of surfactant structure, CMC concentration, pesticide structure and its physicochemical properties on the effectiveness of solubilization was determined. In terms of solubilization capability, the nonionic surfactants of each homologue series can be ranked as follows: Neodol 91-8E > Neodol 91-6E > Neodol 91-5E and Triton X-102 > Triton X-100 > Triton X-114. The more hydrophilic Neodol series was proved more efficient in alachlor solubilization than Triton series. The enhancement factor values ranged from 1.064 to 1.995 at 3 CMC and 1.320 to 2.919 at 6 CMC. The results will be used mainly for micellar-enhanced ultratiltration since the extent of solubilization is a critical factor. (c) 2006 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Hazardous Materials	en
dc.identifier.doi	10.1016/j.jhazmat.2006.01.027	en
dc.identifier.isi	ISI:000240209700063	en
dc.identifier.volume	136	en
dc.identifier.issue	3	en
dc.identifier.spage	882	en
dc.identifier.epage	888	en