Effect of the surface charge on the complexing and catalytic properties of Cu2+-containing composite materials based on zirconia and powdered cellulose

Effect of the surface charge on the complexing and catalytic properties of Cu2+-containing composite materials based on zirconia and powdered cellulose Full article

Journal

Russian Journal of Physical Chemistry B
ISSN: 1990-7931 , E-ISSN: 1990-7923

Output data

Year: 2014, Volume: 8, Number: 3, Pages: 317-325 Pages count : 9 DOI: 10.1134/S199079311403021X

Tags

composite materials; zirconia; powdered cellulose; trimethylhydroquinone; EPR spectroscopy; pH-sensitive nitroxide radicals

Authors

Kovaleva E.G. ¹ , Molochnikov L.S. ² , Parshina E.V. ² , Shishmakov A.B. ³ , Mikushina Yu V. ³ , Kirilyuk I.A. ⁴ , Grigor'ev I.A. ⁴

Affiliations

1	Ural Federal University, Yekaterinburg, Russia
2	Ural State Forest Engineering University, Yekaterinburg, Russia
3	Postovskii Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia
4	Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

Composite materials (CMs) based on zirconia xerogels and powdered cellulose (PC) were synthesized. The effect of the CM surface charge on their complexing properties with respect to Cu2+ ions and on the catalytic activity of the samples in model reactions of the decomposition of H2O2 and the oxidative dehydrogenation of trimethylhydroquinone with atmospheric oxygen was analyzed. It was experimentally proved that the use of PC for the synthesis of ZrO2-based CMs, as in the case of previously studied CMs based on SiO2 and TiO2, leads to an increase in the specific surface area S (sp) and a decrease in the negative electric potential of their surface. The surface charge, sorption method, and the composition of the buffer solution used for sorption have a significant effect on the copper(II) content in the CM phase, the distribution pattern, and the composition of the sorbed copper(II) compounds and on the catalytic activity of the synthesized Cu2+-containing CMs.

Kovaleva E.G. , Molochnikov L.S. , Parshina E.V. , Shishmakov A.B. , Mikushina Y.V. , Kirilyuk I.A. , Grigor'ev I.A.
Effect of the surface charge on the complexing and catalytic properties of Cu2+-containing composite materials based on zirconia and powdered cellulose
Russian Journal of Physical Chemistry B. 2014. V.8. N3. P.317-325. DOI: 10.1134/S199079311403021X WOS Scopus РИНЦ

Published print:	May 1, 2014
Published online:	Jul 6, 2014

Web of science	WOS:000339338400008
Scopus	2-s2.0-84907334972
Elibrary	23990208
OpenAlex	W1997223691