Russian Journal of Applied Chemistry, 2013, Vol. 86, No. 5, pp. 662−666.
Pleiades Publishing, Ltd., 2013.
Original Russian Text © V.N. Postnov, Ya.V. Peretrukhina, A.G. Novikov, 2013, published in Zhurnal Prikladnoi Khimii, 2013, Vol. 86, No. 5, pp. 715−720.
A Porous Carbon Material Prepared by Template Synthesis
V. N. Postnov, Ya. V. Peretrukhina, and A. G. Novikov
St. Petersburg State University, St. Petersburg, Russia
Received December 18, 2012
Abstract—Synthesis of a porous carbon material using Aerosil as template is suggested. The material obtained has
high speciﬁ c surface area (2800 m
) and high limiting sorption volume (6.2 cm
). The porous carbon mate-
rial prepared by this procedure can be used in solid-phase extraction of organic toxicants from aqueous solutions.
Porous carbon materials (PCMs) are versatile means for
and potable water treatment to remove harmful, toxic,
and malodorous substances. The PCM performance is
determined by their speciﬁ c surface area and depends in
many cases on the volume and size of micropores and on
the total porosity. There are many methods for preparing
carbon materials, and much success has been achieved
in the development of the template procedure. It consists
in formation of a precursor of the carbon material in the
presence of a template, followed by pyrolysis, template
removal, and resulting formation a developed porous
structure. We suggested in [1, 2] a peculiar version of the
template procedure, in which the catalyst, macroporous
silica modiﬁ ed by molecular layer deposition, acts
as the template and methyl methacrylate acts as the
carbon source. Methyl methacrylate pyrolysis on the
catalyst surface ensures formation of a carbon material.
Highly porous carbon materials were synthesized [3–5]
on the basis of the H form of Y zeolite using ethylene,
pyrrole, and styrene as precursors. Krasil’nikova et al.
 suggested a new kind of template synthesis. They
used also sucrose as precursor and poly(vinyl formal)
as template. Kobayashi and Kijima  developed a
new procedure for PCM preparation starting from rigid
hyperbranched polymers, which allowed control of the
pore distribution. Porous materials were used as template
in the majority of studies. However, it is also interesting
to use as template highly dispersed nonporous solids,
This study was aimed to develop a procedure for
preparing a porous carbon material using Aerosil as
template and sucrose as precursor and to determine the
pore structure and sorption properties of the samples.
Aerosils of grades А-175, А-300, and А-380 were
used as templates. Aerosil is highly dispersed, highly ac-
tive amorphous silicon dioxide exhibiting such properties
as extremely small particle size, uniformity and spherical
shape of particles, and high purity. It is known that Aerosil
readily forms gelatinous structures on interaction with
water. In particular, the known procedure for preparing
Silokhrom  is based on this property of Aerosil, with
sucrose acting as carbon source.
The procedure developed for the synthesis of template
carbon consists of the following steps.
(1) Gel preparation. The required amount of a 23%
sucrose solution was added to a weighed portion of Aero-
sil (10 g). The components were mixed, and the mixture
was left for the gel aging.
(2) Gel drying and removal of physically bound water.
The gel was dried in an oven at 200°С for 2–2.5 h.
(3) Pyrolysis. The sample after drying was placed in
a quartz reactor and subjected to pyrolysis in a nitrogen