The formation of nickel(II) chloride ammine complexes in the pores of modified fibers of cellulose cloth

A sorbent was synthesized as a cellulose cloth, the fibers of which have nanopores with walls made of cellulose chains and ethanol cyclams. The formation of (NH 4 ) 2 [NiL(NH 3 ) 2 Cl 2 ] complexes where L 2– is the CH–(O – )–CH–(O – ) glucopyranose group was established by chemical analysis and IR...

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Bibliographic Details
Published in:Russian journal of coordination chemistry 2016-12, Vol.42 (12), p.775-778
Main Authors: Tsivadze, A. Yu, Fridman, A. Ya, Novikov, A. K., Sokolova, N. P., Morozova, E. M., Voloshchuk, A. M., Bardyshev, I. I., Gorbunov, A. M., Chernyadiev, A. Yu, Averin, A. A.
Format: Article
Language:English
Subjects:
Ammonia
Cellulose fibers
Chemical analysis
Chemistry
Chemistry and Materials Science
Cloth
Complex formation
Ethanol
Infrared spectroscopy
Inorganic Chemistry
Nickel chloride
Physical Chemistry
Sorbents
X-ray scattering
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Summary:A sorbent was synthesized as a cellulose cloth, the fibers of which have nanopores with walls made of cellulose chains and ethanol cyclams. The formation of (NH 4 ) 2 [NiL(NH 3 ) 2 Cl 2 ] complexes where L 2– is the CH–(O – )–CH–(O – ) glucopyranose group was established by chemical analysis and IR and UV/Vis spectroscopy. Using small-angle X-ray scattering and measurement of the partial free space and adsorption capacity, the complex formation in the [Ni(NH 3 ) 6 ]Cl 2 concentration range of up to 0.43 mol/L was found to occur in nanopores with the sorption constant K sorb = 15.8. The limiting content of the complexes is 2.63 mmol/g and their effective radius is 0.45 nm. In the concentration range of 0.43–0.91 mol/L, the complexation occurs on the fiber surface, K sorb = 1.85. The effective radius of the complexes is 0.5 nm.
ISSN:1070-3284
1608-3318
DOI:10.1134/S107032841612006X