Carbohydrate and collagen-based doubly-grafted interpenetrating terpolymer hydrogel via N-H activated in situ allocation of monomer for superadsorption of Pb(II), Hg(II), dyes, vitamin-C, and p-nitrophenol

Madhushree Mitra; Manas Mahapatra; Arnab Dutta; Joy Sankar Deb Roy; Mrinmoy Karmakar; Mousumi Deb; Himarati Mondal; Pijush Kanti Chattopadhyay; Abhijit Bandyopadhyay; Nayan Ranjan Singha

doi:10.1016/j.jhazmat.2018.12.019

Carbohydrate and collagen-based doubly-grafted interpenetrating terpolymer hydrogel via N-H activated in situ allocation of monomer for superadsorption of Pb(II), Hg(II), dyes, vitamin-C, and p-nitrophenol

J Hazard Mater. 2019 May 5:369:746-762. doi: 10.1016/j.jhazmat.2018.12.019. Epub 2018 Dec 6.

Affiliations

¹ Department of Leather Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, 700106, West Bengal, India.
² Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, 700106, West Bengal, India.
³ Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, 700106, West Bengal, India; Department of Polymer Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata, 700009, West Bengal, India.
⁴ Department of Leather Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, 700106, West Bengal, India. Electronic address: pkantichattopadhyay@gmail.com.
⁵ Department of Polymer Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata, 700009, West Bengal, India.
⁶ Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, 700106, West Bengal, India. Electronic address: drs.nrs@gmail.com.

PMID: 30836295
DOI: 10.1016/j.jhazmat.2018.12.019

Abstract

Herein, guar gum (GG)-g-(acrylic acid (AA)-co-3-acrylamido propanoic acid (AMPA)-co-acrylamide (AM))-g-cow buffing dust (CBD)/(GGTPCBD), a smart carbohydrate and protein-based doubly-grafted interpenetrating terpolymer hydrogel showing excellent physicochemical properties and recyclability was synthesized by in situ strategic allocation of AMPA during solution polymerization of AA and AM through systematic optimization of the amounts of components and reaction temperature for superadsorption of Hg(II), Pb(II), methyl violet (MV), methylene blue (MB), p-nitrophenol (PNP), and vitamin-C (vit.C). The in situ strategic protrusion of AMPA, grafting of both GG and CBD into AA-co-AMPA-co-AM, and ligand-selective superadsorption was inferred by advanced microstructural analyses of unadsorbed- and/or adsorbed-GGTPCBD using FTIR, ¹H/¹³C NMR, O1s-/N1s-/C1s-/Pb4f_7/2,5/2-/Hg4f_7/2,5/2-XPS, UV-vis, TGA, DSC, XRD, DLS, SEM, EDX, % gel content, % -COOH, and pH_PZC. The prevalence of covalent, ionic, and variegated interactions was rationalized by FTIR, fitting of kinetics data to the pseudosecond order model, and activation energies of adsorption. The BET and Langmuir isotherms fitted the best to MB and Hg(II)/Pb(II)/MV, respectively. Thermodynamically spontaneous chemisorption processes showed the maximum adsorption capacities (ACs) of 976.64, 859.23, 116.80, and 58.52 mg g^-1 for Pb(II), Hg(II), MV, and MB, respectively, at 303 K, adsorbent dose = 0.01 g, and initial concentration of metal ions/dyes = 800/30 ppm.

Keywords: (1)H/(13)C NMR/XPS/DLS; Adsorption-mechanism; Analyses of adsorbed hydrogel; Buffing dust recycling; Collagen-g-terpolymer-g-guar gum.

Publication types

Research Support, Non-U.S. Gov't