Chapter 4
Effect of Incorporated Inorganic
Nanoparticles on Porous Structure
and Functional Properties of Strongly
and Weakly Acidic Ion Exchangers
Ludmila Ponomarova, Yuliya Dzyazko, Yurii Volfkovich, Valentin Sosenkin,
and Sergey Scherbakov
4.1 Organic-Inorganic Ion Exchangers
Currently organic-inorganic sorbents are developed intensively. Combination of
constituents of different natures allows us to obtain materials that are characterized
by improved functional properties, such as high selectivity, considerable ionexchange capacity, and facile regeneration [1–3]. Moreover, organic or inorganic
matrices acquire new properties after modification with inorganic or organic
constituents, respectively. For instance, modification of clay minerals with organics
provides their ability to sorb synthetic dyes [3–6] or toxic anions containing U(VI)
[7–9] or Cr(VI) [10–12]. Organic functional groups grafted to silica, which possess
no cation exchange ability in acidic and neutral media, adsorb cations at pH < 7 [13–
15]. Coating of magnetic nanoparticles (Fe 3 O 4 ) with polymers gives a possibility
to obtain finely dispersed core-shell sorbents, which can be easily removed from
liquids [16–18].
From the practical point of view, the composites based on commercial ionexchange resins are especially attractive since they can be applied to ion-exchange
columns (ion exchange under dynamic conditions). The resins are modified with
nanoparticles of inorganic ion-exchangers [19]. The materials are used for sorpL. Ponomarova · Y. Dzyazko ()
V. I. Vernadsky Institute of General and Inorganic Chemistry of the National Academy of Science
of Ukraine, Kyiv, Ukraine
Y. Volfkovich · V. Sosenkin
A. N. Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of
Science, Moscow, Russia
S. Scherbakov
M. G. Kholodny Institute of Botany of the National Academy of Science of Ukraine, Kyiv,
Ukraine
© Springer International Publishing AG, part of Springer Nature 2018
O. Fesenko, L. Yatsenko (eds.), Nanochemistry, Biotechnology, Nanomaterials,
and Their Applications, Springer Proceedings in Physics 214,
https://doi.org/10.1007/978-3-319-92567-7_4
63
Effect of Incorporated Inorganic
Nanoparticles on Porous Structure
and Functional Properties of Strongly
and Weakly Acidic Ion Exchangers
Ludmila Ponomarova, Yuliya Dzyazko, Yurii Volfkovich, Valentin Sosenkin,
and Sergey Scherbakov
4.1 Organic-Inorganic Ion Exchangers
Currently organic-inorganic sorbents are developed intensively. Combination of
constituents of different natures allows us to obtain materials that are characterized
by improved functional properties, such as high selectivity, considerable ionexchange capacity, and facile regeneration [1–3]. Moreover, organic or inorganic
matrices acquire new properties after modification with inorganic or organic
constituents, respectively. For instance, modification of clay minerals with organics
provides their ability to sorb synthetic dyes [3–6] or toxic anions containing U(VI)
[7–9] or Cr(VI) [10–12]. Organic functional groups grafted to silica, which possess
no cation exchange ability in acidic and neutral media, adsorb cations at pH < 7 [13–
15]. Coating of magnetic nanoparticles (Fe 3 O 4 ) with polymers gives a possibility
to obtain finely dispersed core-shell sorbents, which can be easily removed from
liquids [16–18].
From the practical point of view, the composites based on commercial ionexchange resins are especially attractive since they can be applied to ion-exchange
columns (ion exchange under dynamic conditions). The resins are modified with
nanoparticles of inorganic ion-exchangers [19]. The materials are used for sorpL. Ponomarova · Y. Dzyazko ()
V. I. Vernadsky Institute of General and Inorganic Chemistry of the National Academy of Science
of Ukraine, Kyiv, Ukraine
Y. Volfkovich · V. Sosenkin
A. N. Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of
Science, Moscow, Russia
S. Scherbakov
M. G. Kholodny Institute of Botany of the National Academy of Science of Ukraine, Kyiv,
Ukraine
© Springer International Publishing AG, part of Springer Nature 2018
O. Fesenko, L. Yatsenko (eds.), Nanochemistry, Biotechnology, Nanomaterials,
and Their Applications, Springer Proceedings in Physics 214,
https://doi.org/10.1007/978-3-319-92567-7_4
63