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Issue 45

CHEMISTRY AND BIOLOGY

UDK: 541.183/.183.7:661.183.2

THE TEXTURE AND SURFACE CHEMISTRY OF MODIFIED ACTIVATED CARBON KM-2

GAFUROV Malik Magomedovich,
RABADANOV Kamil Shakhrievich,
SVESHNIKOVA Dzhannet Alexeevna,
ASVAROV Abil Shamsudinovich,
RAMAZANOV Arsen Shamsudinovich,
KYNZHUEVA Kamila Guseynovna


Textural characteristics and surface chemistry of original activated carbon KM-2 as well as of carbon KM-2 modified by nitric (OKM-2) and phosphoric (FKM-2) acids have been studied. It has been found that oxidation of carbon KM-2 by nitric acid leads to decrease of specific surface area, total pore volume and micropore volume. In this case surface acidic functional groups with lower than on original carbon pK values are appeared.The treatment of KM-2 carbon with phosphoric acid leads to the appearance on carbon surface minor amounts of phosphorus.

Keywords: активированные угли; удельная поверхность; пористость; поверхностные функциональные группы; ИК-спектры; activated carbons; specific area; porosity; surface functional groups; IR spectra.

Pages: 32 - 37

Date: 25.01.2012

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