Increase in the specific surface area of the carbon-containing sorbent by introducing additional components
Abstract
The sorbent BAKS-001 on the basis of nanoparticles of carbon and silicon dioxide was synthesized. To increase the sorption properties of the composite, additional components were added to the formulation of the starting material.
The sorbent BAKS-001 was obtained by combining an anhydrous precipitate of silica with coal BAU, dehydrated at 150°C and ground at colloid mill, together with silver nanoparticles obtained by treatment of glucose with an ammoniacal solution of silver hydroxide in a solution of starch. The obtained clay mixture was granulated, dried and calcined at 750-800°C.
New sorbents of BAKS-002 were obtained by introducing iron sulfate and BAKS-003 into the composition of the base composite by sulfonation with concentrated sulfuric acid. The sorbents were studied by the method of electron microscopy and the stalagmantry method of analysis.
The two-step character of isotherms of sorption of butanol due to the presence in the structure of composites of two parts with different degrees of dispersion was established.
An increase in the specific surface in the series of composites of BAKS-001 <BAKS-002 <BAKS-003 (respectively 938 <954 <1008 m2 / g), as well as an increase in the sorption capacity has been revealed which is characterized by the amount of the limiting specific sorption at both stages of sorption (respectively 5.18 <5.27 <5.57 mmol / g).
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References
2. Tikhomirova E.I., Vedeneeva N.V., Nechaeva O.V., Anokhina T.V., Proceedings of the Samara Scientific Center of the Russian Academy of Sciences, 2016, Vol. 18, No 2 (3), pp. 812-816.
3. Kotov V.V., Gorelova E.I., Gorelov I.S., Danilova G.N., Sorbtsionnye i khromatograficheskie protsessy, 2014, Vol. 14, No 3, pp. 413-418.
4. Gorelov I.S., Gorelova E.I. Patent of the Russian Federation №102195 Filtering material and filter for water purification, In Bul. No 5, 2011.
5. Gorelov I.S., Gorelova E.I., Kotov V.V., Danilova G.N., Proceedings of the International Conference «Theoretical and Practical Aspects of Sorption and Membrane Processes», Kemerovo, 2014, pp. 161-163.
6. Plisov N.V., Matantsev V.A. Patent of the Russian Federation, No 2130894, 1999.
7. Karren P., Course of Organic Chemistry, Goskhimizdat, L., 1962, 1261 p.
8. Laboratory works and tasks on colloid chemistry, Ed. by Frolova Yu.G., Grodsky A.S., M., «Chemistry», 1986, 216 p.
