Synthesis and sorption properties of the metal-carbon sorbent on the base of shungite modified with silver
Abstract
The metal-carbon sorbents based on ultradispersed porous shungite modified with nanoparticles of
silver in the reverse-micellar solutions were synthesized. Physical-chemical properties of the metal-organic
materials were investigated by energy-dispersive X-ray analysis (EDX) and surface-assisted massspectrometry with laser desorption / ionization method (SALDI-MS). It was observed that nanoparticles of silver are distributed on the shungite surface uniformly and retain strongly at the sorbent with 75% shungite carbon. The process of silver ionization on the shungite surface is hampered. Low desorption of silver from the modified surface of ultradispersed porous shungite, as well as the thermal stability of shungite near 500оС makes it possible the avoidance of the metal loss during filtration and regeneration. The adsorption of phenol on the shungite modified with nanoparticles of silver was studied by SALDI-MS. No clusters containing molecules of phenol and silver were found on the metal-carbon sorbent after adsorption of phenol. There is no interaction of phenol and silver nanoparticles on the shungite surface. The dispersity and hydrophilicity of the shungite powder in water were increased due to the modification of its surface with silver nanoparticles. It was proposed that silver modified shungite can be stable and effective sorbent for purifying of water and it is resistant to the regeneration processes. Thus metal-carbon sorbent based on ultradispersed porous shungite modified with silver can serve as a basis for producing of the new class of hybrid organic-inorganic materials for nanotechnology. A complex of hydrophilic, hydrophobic, acidic, basic, and bactericidal properties, appearing in the composition of shungite modified with silver nanoparticles, makes possible its application as sorbent, filler, catalyst and component of composite materials for medical application.
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References
2. Polunina I.A., Goncharova I.S., Visotskii V.V., Polunin K.E. et al., Inorganic Materials: Applied Research, 2017, Vol. 8, No 1, pp. 181-185. DOI: 10.1134/S2075113317010282.
3. Shungity – novoe uglerodistoe syr'e. Pod red. V.A. Sokolova, Ju.K. Kalinina, E.F. Djukkieva. Petrozavodsk, Karelija, 1984, 182 p.
4. Eliseev A.A., Lukashin A.V. Funkcional'nye nanomaterialy. pod red. Ju.D. Tret'jakova. Moskva, Fizmatlit, 2010, 456 p.
5. Krutjakov Ju.A., Kudrinskij A.A., Olenin A.Ju., Lisichkin G.V., Uspehi himii, 2008, Vol. 77, No 3, pp. 242-269.
6. Egorova E.M., Revina A.A., Rostovshhikova T.N., Kiseleva O.I., Vestnik Mosk. Un-ta. Ser. 2. Himija, 2001, Vol. 42, No 5, pp. 332-338.
7. Kotel'nikova T.A., Sorbtsionnye i khromatograficheskie protsessy, 2017, Vol. 17, No 5, pp. 706-715.
8. Revina A.A., Fizikohimija poverhnosti i zashhita materialov, 2009, Vol. 45, No. 1, pp. 58-63.
9. Revina A.A., Kezikov A.N., Alekseev A.V., Hajlova E.B. et al., Nanotehnika, 2005, No 4, pp. 105-111.
10.Revina A.A., Baranova E.K., Fizikohimija poverhnosti i zashhita materialov, 2010, Vol. 46, No 4, pp. 376-379.
11.Revina A.A. Patent RF 2212268. 2003 12.Polunin K. E, Goncharova I.S., Ulyanov A.V., Polunina I.A. et al., Colloid J., 2017, Vol. 79, No 2, pp. 250-257. DOI:10.1134/S1061933X17020090.
13.Kezikov A.N., Baranova E.K., Hajlova E.B., Revina A.A., Sorbtsionnye i khromatograficheskie protsessy, 2017, Vol. 17, No 2, pp. 916-923.
14.Beljakova L.D., Kolomiec L.N., Larionov O.G., Bulanova A.V. et al., Sorbtsionnye i khromatograficheskie protsessy, 2007, Vol. 7, No 1, pp. 98-105.
15.Akimbaeva A.M., Neftehimija, 2007, Vol. 47, pp. 225-235.
16.Polunina I.A., Goncharova I.S., Polunin K.E, Buryak A.K., Inorganic Materials: Applied Research, 2018, Vol. 9, No 4, pp. 772-776. DOI: 10.1134/S2075113318040305.
17.Ulyanov A.V., Polunina I.A., Polunin K. E, Buryak A.K., Colloid J., 2018, Vol. 80, No 1, pp. 96-106. DOI:
10.1134/S1061933X18010131.
