ISSN 1070-4272, Russian Journal of Applied Chemistry, 2015, Vol. 88, No. 1, pp. 50−58. © Pleiades Publishing, Ltd., 2015.
Original Russian Text © K.K. Kishibayev, N.L. Voropaeva, A.T. Kabulov, S.A. Efremov, M.J. Fernandez Sanjurjo, V.V. Gur’yanov, M.K. Nauryzbaev, 2015,
published in Zhurnal Prikladnoi Khimii, 2015, Vol. 88, No. 1, pp. 55−63.
OF SYSTEMS AND PROCESSES
Present-day world’s production of activated carbons
(ACs) is more than 1.5 million tons per year. In industry,
carbon sorbents are widely used in technological pro-
cesses for various purposes, including isolation, separa-
tion, and concentration of substances from gaseous and
liquid media [1–14]. Carbon sorbents are actively used
in the military-industrial complex, medicine, veterinary
medicine, agriculture, and other ﬁ elds of human activity.
For example, carbon hemosorbents are used to purify
blood, enterosorbents serve to purify organisms to remove
hazardous substances and malignant microorganisms; in
veterinary medicine, the sorbents are used to detoxicate
fodder and make animals healthier. Owing to their unique
physicochemical properties, activated carbons play a very
important role in the stock of ﬁ lters serving to protect
respiratory organs from various harmful contaminations,
such as organic and inorganic vapors, poisonous agents,
Depending on technological requirements, carbon
sorbents are used in various forms: as powders, granules,
blocks of varied shape and size, ﬁ lms, ﬁ bers, fabrics .
The large surface area and pore structure composed of
micro-, meso-, and macropores, as also functional groups
Physicochemical Characteristics of Furfural-Based
Activated Carbons and Application of These
in Sorption of Cyclohexane
K. K. Kishibayev
, N. L. Voropaeva
, A. T. Kabulov
, S. A. Efremov
M. J. Fernandez Sanjurjo
, V. V. Gur’yanov
, and M. K. Nauryzbaev
Center of Physico-Chemical Methods of Research and Analysis (CPCMRA), Al-Farabi Kazakh National University,
71 Al-Farabi ave., Almaty, 050038 Kazakhstan
All-Russia Research Institute of Rape, Boevoi proezd 26, Lipetsk, 398037 Russia
University of Santiago de Compostela, Praza do Obradoiro, Lugo, 27002 Spain
OAO ENPO Neorganika,pr. Karla Marksa 4, Electrostal, Moscow oblast, 144001 Russia
Received December 26, 2014
Abstract—Morphology, structure, and elemental composition of sorbents produced from furfural, with the sub-
sequent carbonization and activation, were studied. Their sorption and service characteristics were determined.
The sorption absorption of cyclohexane from air on the sorbents was examined.
on the surface of activated carbons, directly affect their
practical application [2–13].
The physical and chemical structure of ACs can be
modiﬁ ed by various methods: changing the conditions
of activation and carbonization (temperature and process
duration), modiﬁ cation, etc. Functional groups on the AC
surface are mostly formed in the course of activation and
chemical modiﬁ cation. The surface functional groups in
ACs are responsible for their physicochemical properties
[2–5]. Changing the chemical surface of ACs is believed
to be a promising way to reveal their new application
ﬁ elds. In particular, quite a number of studies have been
focused on modifying the surface of carbon materials
with functional groups [6–13].
At CPCMRA, spherical activated carbons of the
FAS type were synthesized from copolymers of furfural
(based on furfur, Latin word for bran), an aldehyde, furan
derivative of general formula