NDLI: Novel stimuli-responsive hydrogels derived from morpholine: synthesis, characterization and absorption uptake of textile azo dye

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Iranian Polymer Journal : Volume 26, Issue 5, May 2017

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Novel stimuli-responsive hydrogels derived from morpholine: synthesis, characterization and absorption uptake of textile azo dye

Content Provider	Springer Nature Link
Author	Ilgin, Pinar Ozay, Ozgur
Copyright Year	2017
Abstract	A new cationic monomer methacrylamido-4-(2-aminoethyl)morpholine, (MAEM) derived from morpholine was synthesized in a single step and characterized by FTIR, $^{1}$H and $^{13}$C NMR analyses. Through free radical aqueous polymerization, novel copolymeric hydrogels have been prepared successfully using methacrylamido-4-(2-aminoethyl)morpholine and acrylamide (Aam) as monomers. Later on SEM, FTIR, elemental analysis and TG instruments were used to characterize the obtained poly(acrylamide-co-methacrylamido-4-(2-aminoethyl)morpholine), poly(Aam-c-MAEM), hydrogels. Poly(Aam-c-MAEM) hydrogels were tested for swelling, diffusion and uptake of reactive orange, RO, anionic dye. In this regard, various adsorption kinetics and isotherm models as well as operation parameters were systematically examined and discussed in detail in relation to adsorption uptake such as pH of media, comonomer composition, adsorbent dosage, temperature, initial dye concentration and contact time. The description of adsorption process of RO on hydrogels was consistent with the pseudo-second-order model followed by Elovich and pseudo-first-order. The best fitting adsorption model was selected on the basis of R $^{2}$, in the order of: Temkin > D-R > Langmuir > Freundlich isotherm. The results obtained in this study demonstrate that poly(Aam-c-MAEM) hydrogels provide an excellent advantage for application of this hydrogel system in the removal of anionic textile dyes from wastewater.
Starting Page	391
Ending Page	404
Page Count	14
File Format	PDF
ISSN	10261265
Journal	Iranian Polymer Journal
Volume Number	26
Issue Number	6
e-ISSN	17355265
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2017-05-03
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Polymer Sciences Isotherms Hydrogel Kinetics Swelling and adsorption parameters Ceramics, Glass, Composites, Natural Materials Reactive orange
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Chemical Engineering Polymers and Plastics

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