Affiliation:
1. Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre “Kola Science Centre of the Russian Academy of Sciences”
Abstract
The paper presents the results of studies of the effect of the surface tension of the interstitial fluid on the structural and surface properties (specific surface area and pore volume, pore diameter distribution) of layered magnesium and aluminum double hydroxides (Mg-Al LDH) obtained by the interaction of AlCl3·6H2O, MgCl2·6H2O and ammonium carbonate. The equations connecting the specific surface area and the specific pore volume of the synthesized Mg-Al LDH samples with the surface tension of the interstitial medium are obtained. It is shown that the substitution of the aqueous medium in the pore space for acetone before drying the synthesized Mg-Al LDH allows to significantly increase the capacity of the adsorption monolayer of products and does not significantly affect the mechanism of the sorption process.
Reference25 articles.
1. Cavani , F . , Trifiro , F . , Vassari , A . , Hydrotalcite-type anionic clays: Preparation, properties and applications, Catal. Today., 1991, V. 11, pp. 173–301.
2. Bissessur , A . , Naicker , M ., Synthesis and use of hydrotalcites as heat stabilisers in thermally processed powdered polyvinylchloride (PVC), International Journal of Physical Sciences, 2013, V. 8 (36), pp. 1772–1782.
3. Nestrinaya, O . V . , Ryltsova , I . G . , Lebedeva , O . E ., Sintez i termicheskie prevrashcheniya multikomponentov sloistykh dvoynykh gidroksidov MgCo / AlFe so strukturoy gidrotalkita [Synthesis and thermal transformations of multicomponents of layered double hydroxides MgCo / AlFe with a hydrotalcite structure], Zhurnal obshchey khimii, 2017, V. 87, No 2, pp. 181–185.
4. Ryltsov a , I .G . , Nest roinaya , O . V . , Lebedeva , O . E . , e t a l . , Sintez i izuchenie novykh sloistykh gidroksidov magniya – kobalta – zheleza so strukturoy gidrotalkita [Synthesis and study of new layered magnesium–cobalt–iron hydroxides with a hydrotalcite structure], Zhurnal neorganicheskoy khimii, 2014, V. 59, No 12, pp. 1652–1659.
5. Belov, V . V . , Markov , V. I . , Sova , S. B . , etal ., Mg-Al sloistye dvoynye gidroksidy: poluchenie, stroenie i katalitichesky potentsial v kondensatsii tsiklogeksanona i s atsetonitrilom [Mg-Al layered double hydroxides: preparation, structure and catalytic potential in the condensation of cyclohexanone with acetonitrile], Zhurnal prikladnoy khimii, 2014, V. 87, No 8, pp. 1028–1035.