Synthesis of a Gum rosin alcohol-poly(acrylamide) based adsorbent and its application in removal of malachite green dye from waste water

Abstract

The present paper is focused on the synthesis of a green GrA-cl-poly(AAm) adsorbent using N,N 0methylene-bis-acrylamide and potassium persulphate as a crosslinker-initiator system. The synthesized adsorbent was found to remove 83% of the toxic malachite green dye from aqueous waste water.Kinetic studies of the adsorption of the dye on the adsorbent showed pseudo second order kinetics and was found to fit well with the Langmuir isotherm model. Scheme 1 Adsorption of MG dye onto GrA-cl-poly(AAm) hydrogel. 43098 | RSC Adv., 2015, 5, 43092-43104 This journal is

Study of ionic charge dependent salt resistant swelling behavior and removal of colloidal particles using reduced gum rosin-poly(acrylamide)-based green flocculant

“…After grafting of the reduced gum rosin with poly(AAm) chains the surface morphology changed. The changed morphology with roughness and cross-linking confirmed the incorporation of poly(AAm) onto reduced gum rosin through covalent bonding [24,29].…”

“…1e, f, 825 and 550 % P s were obtained with 0.014 mol L −1 of MBA and 3.12 mol L −1 of acrylamide concentration, respectively. Further, increase in cross-linker and monomer concentration resulted with lowering P s which could be due to greater rigidity and the compactness of the samples [26,29].…”

“…1b that initially P s increased with increase in time interval and showed maximum P s (350 %) at 120 min. Further increase in time interval resulted in lower grafting, which might be due to the predominance of homopolymerization [29,31].…”

“…12, 13). Mechanism of hydrogel preparation is given in Scheme 1 and it is briefly depicted in Scheme 2 [14,29,30]:…”

The Use of Acrylamide-Crotonic Acid Nested Network Structured Hydrogels for Adsorption of the Methylene Blue

“…Şekil 3.a'da akrilamid hidrojellere ait FTIR spektrumu incelendiğinde 1650 ve 1540 cm -1 'deki pikler sırasıyla -CONH2 grubunun amid I ve amid II için C=O gerilme titreşim bantlarına, 1600 cm -1 'deki pikin N-H düzlem içi eğilme titreşimine ait olduğu, 1446, 1416 ve 1113 cm -1 'deki bantların ise sırasıyla amid II'nin N-H düzlem içi eğilme, C-N gerilme ve C-O gerilme titreşimlerine ait olduğu düşünülmektedir [Aktaş Uygun, D., Uygun, M., Akgöl, S., & Denizli, A. (2015), Kaith, B. S., Jindal, R., Sharma, R. (2015), Sharma, K. Et al. (2013)].…”