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Type: Artigo de periódico
Title: Organophilic nickel phyllosilicate for reactive blue dye removal
Author: Alencar, JM
Oliveira, FJVE
Airoldi, C
Silva, EC
Abstract: A new organophilic nickel phyllosilicate (Ph-NT) was synthesized by sol-gel method, through the reaction with nickel nitrate and a new organosilane prepared from the reaction of 3-aminopropyltriethoxysilane and thiourea in a basic medium. The reaction effectiveness was confirmed by XRD, FTIR, elemental analysis, C-13 and Si-29 NMR, and TG. The influence of contact time, pH temperature and concentration were investigated and the set of data have shown favorable results for employing the phyllosilicate as an adsorbent agent, and the maximum adsorption capacity using the optimized conditions was 179.9 mg g(-1) at 300 min, pH 3 and 318 K, which makes the novel functional surface a promising material for treating polluted aquatic environments. The experimental kinetics data were adjusted to pseudo second order model and the experimental isotherms data were better adjusted to Langmuir model. (C) 2013 Elsevier B.V. All rights reserved.
Subject: Phyllosilicate
Industrial dye
Country: Suíça
Editor: Elsevier Science Sa
Citation: Chemical Engineering Journal. Elsevier Science Sa, v. 236, n. 332, n. 340, 2014.
Rights: fechado
Identifier DOI: 10.1016/j.cej.2013.09.091
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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