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AuthorAwadallah-F A.
AuthorAl-Muhtaseb S.A.
Available date2020-04-27T08:34:18Z
Publication Date2019
Publication NameMaterials Chemistry and Physics
ResourceScopus
ISSN2540584
URIhttp://dx.doi.org/10.1016/j.matchemphys.2019.03.010
URIhttp://hdl.handle.net/10576/14526
AbstractGas-templated resorcinol formaldehyde-activated carbon xerogels (GT-RF-ACXs) were prepared from resorcinol-formaldehyde xerogels that were templated by infusing different gases (e.g., nitrogen, oxygen, methane, ethylene, ethane, propylene, n-butane, air, propane, helium, argon, carbon dioxide and hydrogen) into the sol media upon its gelation, with subsequent carbonization and activation of the gas-templated xerogels. The crystallinity, adsorption isotherms; pore structure, chemical structure and particle size of GT-RF-ACXs were studied. Wide ranges of characteristics were obtained for GT-RF-ACXs templated with different gases. The effect of templating with different gases on the adsorption performances of GT-RF-ACXs were demonstrated in aqueous media for the removal of (Ni2+, Pb2+ or Cr3+) ions from water; and in gas media for the adsorption of CO2, CH4 and N2. It was found that the gas-templating has a strong effect on the adsorption performance of GT-RF-ACXs towards different species in aqueous or gas media. Therefore, it is evident that gas-infusion during the synthesis of gel precursors significantly affects the features and their separation abilities of their subsequent activated carbons. - 2019 Elsevier B.V.
SponsorThis publication was made possible by the support of the NPRP awards [ NPRP 08-014-2-003 and NPRP-8-001-2-001 ] from the Qatar National Research Fund (a member of The Qatar Foundation). Technical support from the Department of Chemical Engineering and the Central Laboratory Unit at Qatar University is also acknowledged. The statements made herein are solely the responsibility of the authors.
Languageen
PublisherElsevier Ltd
SubjectActivated carbon
Adsorption
Formaldehyde
Gas-template
Resorcinol
Xerogel
TitleEffect of gas templating of resorcinol-formaldehyde xerogels on characteristics and performances of subsequent activated carbons
TypeArticle
Pagination361-368
Volume Number234
dc.accessType Abstract Only


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