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Preliminary evaluation of resorcinol-formaldehyde carbon gels for water pollutants removal

Ahmad Zaini, Muhammad Abbas and Yoshida, Seiichiro and Mori, Takeshi and Mukai, Shin R. (2017) Preliminary evaluation of resorcinol-formaldehyde carbon gels for water pollutants removal. Acta Chimica Slovaca, 10 (1). pp. 54-60. ISSN 1337-978X

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Official URL: https://www.degruyter.com/downloadpdf/j/acs.2017.1...

Abstract

The present work was aimed to evaluate the suitability of resorcinol-formaldehyde carbon gels as adsorbent for water pollutants removal. The carbon gels were characterized using N2 adsorption-desorption isotherm for specific surface area, and Fourier transform infrared (FTIR) for surface functional groups. Methylene blue and cesium were employed as model water pollutants. Results show that the un-oxidized carbon gel, despite its lower specific surface area (333 m2/g) displayed a 118 mg/g removal of methylene blue, that is higher than 35 mg/g by the oxidized carbon gel (418 m2/g). The evaluation of adsorption kinetics revealed a lower pseudo-first order rate constant of 0.088 h–1 for 10 mg/L methylene blue adsorption. A positive effect of surface oxidation was demonstrated for cesium adsorption. On molar basis, however, the oxidized carbon gel exhibits a selective removal towards methylene blue compared to cesium. Carbon gel is a promising candidate for water pollutants removal, and further treatment needs to be sought to boost its performance.

Item Type:Article
Uncontrolled Keywords:Adsorption, carbon gel, cesium, methylene blue, surface oxidation
Subjects:T Technology > TP Chemical technology
Divisions:Chemical Engineering
ID Code:80768
Deposited By: Fazli Masari
Deposited On:27 Jun 2019 14:23
Last Modified:27 Jun 2019 14:23

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