Pore structure and adsorption properties of stone active carbons prepared by physicochemical and chemical activation methods

Autor:	G. A. Petukhova, N. S. Polyakov, P. I. Nastas, T. G. Lupascu
Rok vydání:	2006
Předmět:	chemistry.chemical_compound Adsorption chemistry Chemical engineering Organic chemistry Titration General Chemistry Microporous material Activation method Phosphate Mesoporous material Spectroscopy Chemical composition
Zdroj:	Russian Chemical Bulletin. 55:770-774
ISSN:	1573-9171 1066-5285
DOI:	10.1007/s11172-006-0331-y
Popis:	Active carbons (ACs) with diverse microporous and developed mesoporous structures were prepared by chemical and phisochemical activation methods from walnut shells, fruit stones, and grape seeds. The surface chemistry was studied by chemical titration and spectroscopy in the IR, UV, visible, and near IR regions. The ACs prepared by chemical activation contain carboxyl and phosphate groups, which impart acidic properties to the surface. Basic functional groups are mainly formed on the ACs prepared by physicochemical activation. The AC surface has a complicated chemical composition, which results in high adsorpion activity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::60e9f2609849932dde8740b2de51bf0b https://doi.org/10.1007/s11172-006-0331-y Zobrazit plný text záznamu Full text from SpringerLink