Cover Page September-2016-Advanced Materials Letters

Advanced Materials Letters

Volume 7, Issue 9, Pages 760-764, September 2016
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Mesoporous Silica Polymer Nanocomposites Functionalized With Vinyl Pyridine And Vinyl Pyrrolidinone for The Adsorption Of Humic Acid

G. Robin Wilson and  Amit Dubey*

Department of Chemistry, Maulana Azad National Institute of Technology (MANIT), Bhopal 462051, M.P, India

Adv. Mater. Lett., 2016, 7 (9), pp 760-764

DOI: 10.5185/amlett.2016.6077

Publication Date (Web): Jul 09, 2016

E-mail: dramit.dubey@gmail.com

Abstract

In order to induce the hydrophobicity and the influence of functional vinyl monomers, vinyl pyridine (VP), vinylpyrolidinone (V2P) and vinylsulphonic acid (VSA) were impregnated into SBA-15 matrix to generate SBA/L nanocomposites and characterized for the adsorption of humic acid (HA) for the first time. The structural order of the SBA/L samples was confirmed by standard physicochemical characterizations (powder X-ray diffraction (PXRD), adsorption isotherm, SEM etc). Considerable adsorption (120-140 mg/g) of HA was observed over basic (SBA/VP and SBA/V2P) nanocomposites compared to the acidic ones. Adsorption parameters like effect of temperature, pH, weight of the adsorbent and time were studied. The possible mechanistic pathway for hydrophilic/hydrophobic interactions was also explained.

Keywords

Vinyl monomer, humic acid, SBA-15/L, adsorption of HA.

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