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Removal of boron from aqueous solution by using neutralized red mud
Scopus
Toplam 142 atıf DOI
The adsorptive removal of boron from aqueous solution by using the neutralized red mud was studied in batch equilibration technique. The effects of pH, adsorbent dosage, initial boron concentration and contact time on the adsorption were investigated. The experiments demonstrated that boron removal was of a little fluctuation in pH range of 2-7 and it takes 20 min to attain equilibrium. The adsorption data was analyzed using the Langmuir and the Freundlich isotherm models and it was found that the Freundlich isotherm model represented the measured sorption data well. © 2006 Elsevier B.V. All rights reserved.
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Synthesis of N-methylglucamine functionalized calix[4]arene based magnetic sporopollenin for the removal of boron from aqueous environment
Scopus
Havuzumuzda 59 atıf almış
The present study deals with the synthesis of new N-methylglucamine functionalized calix[4]arene based magnetic sporopollenin (4) and its application for the removal of boron from aqueous environment. The newly prepared calix[4]arene immobilized material 4 is characterized by SEM, EDS and FT-IR spectroscopy. The sorption efficiency of newly calix[4]arene-based magnetic material 4 for boron from aqueous media was evaluated through the solid-liquid sorption experiments. During the sorption process, various kinds of interactions such as electrostatic repulsion, deprotonation of the hydroxyl groups of sorbent 4, and dissociation of H3BO3 into anions/cations were monitored. The sorption of boron on material 4 is highly pH dependent and significant percent sorption (84%) was achieved at pH=7.5. The sorption behavior was analyzed by Langmuir and Freundlich isotherms. The values of correlation coefficients (R2) showed that the Langmuir isotherm model found to be best fit. Experimental data revealed that material 4 is an efficient sorbent which can be effectively used for the boron decontamination of aqueous media. © 2012 Elsevier B.V.
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Kurumlar (1)
Selçuk Üniversitesi
Selçuklu, Turkey