A resin containing motifs of maleic acid and glycine: a super-adsorbent for adsorptive removal of basic dye pararosaniline hydrochloride and Cd(II) from water

• Published in: Journal of environmental health science and engineering 2021-12, Vol.19 (2), p.1333-1346
• Main Authors: Yaagoob, Ibrahim Y., Mazumder, Mohammad A. J., Al-Muallem, Hasan A., Ali, Shaikh A.
• Format: Article
• Language: English
• Subjects: Adsorption; Earth and Environmental Science; Environment; Environmental Economics; Environmental Engineering/Biotechnology; Environmental Health; Environmental Law/Policy/Ecojustice; Glycine; Polyelectrolytes; Quality of Life Research; Research Article; Surface active agents; Waste Management/Waste Technology; Wastewater
• ISSN: 2052-336X; 2052-336X
• DOI: 10.1007/s40201-021-00690-1

The cyclocopolymerization of N , N -diallylglycine hydrochloride, maleic acid and 1,1,4,4-tetraallylpiperazinium dichloride afforded a cross-linked polyzwitterionic acid, which, upon treatment with NaOH, gave the corresponding cross-linked anionic polyelectrolyte (CAPE) in quantitative yield. The pH-responsive resins contained a high density of CO 2 − motifs as well as the chelating motifs of glycine residues. The resin CAPE was found to be a super-adsorbent for the removal of pararosaniline hydrochloride (PRH); having a q max of 1534 mg/g. The adsorption process followed pseudo-second-order kinetics and was found to be a nearly irreversible process as suggested by the parameters obtained from Elovich kinetic model. The resin demonstrated excellent adsorption/desorption efficiencies, thereby ensuring its recycling and reuse in potent applications like remediation of industrial dye-waste water. The resin’s chelating motifs were also efficient in the adsorptive removal of Cd(II) ions with a q max of 248 mg/g. It was also employed for the simultaneous and effective trapping of Cd(II) and the dye from industrial wastewater. The resin’s impressive performance accords it a prestigious place among many sorbents in recent works.