Carbon-covered mesoporous silica and its application in Rhodamine B adsorption

Modified versions of MCM-41 and SBA-15 were obtained from sucrose by carbon deposition. The ability of the resulting materials, MCM-41 CC and SBA-15 CC, to remove Rhodamine B from aqueous solutions was evaluated. TG/DTG, XRD, Nitrogen Adsorption (BET), and SEM were used to characterize the materials...

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Détails bibliographiques
Publié dans:Environmental technology. - 1998. - 39(2018), 9 vom: 17. Mai, Seite 1123-1132
Auteur principal: Nascimento, R C S (Auteur)
Autres auteurs: Silva, A O S, Meili, L
Format: Article en ligne
Langue:English
Publié: 2018
Accès à la collection:Environmental technology
Sujets:Journal Article MCM-41 Molecular sieves SBA-15 carbon rhodamine B sucrose Rhodamines Carbon 7440-44-0 plus... Silicon Dioxide 7631-86-9 K7G5SCF8IL
Description
Résumé:Modified versions of MCM-41 and SBA-15 were obtained from sucrose by carbon deposition. The ability of the resulting materials, MCM-41 CC and SBA-15 CC, to remove Rhodamine B from aqueous solutions was evaluated. TG/DTG, XRD, Nitrogen Adsorption (BET), and SEM were used to characterize the materials. Adsorption was investigated by finite bath studies. To characterize the adsorption behavior and mechanism, kinetics and equilibrium were assessed. MCM-41 CC provided the best adsorption results: adsorptive capacity of 11.91 mg of dye/g of material and 91.95% w/v dye removal (C0 = 50 mg L-1). The sucrose particles interacted well, to result in improved area and micropore volume. Hence, carbon deposition can afford materials with increased adsorptive capacity depending on the sieve employed during their preparation
Description:Date Completed 17.08.2018
Date Revised 02.12.2018
published: Print-Electronic
Citation Status MEDLINE
ISSN:1479-487X
DOI:10.1080/09593330.2017.1321693