ИСТИНА

Carbon nanomaterials are promising products in many industries. Since these materials have high dispersity, their specific surface area is also large, which is very important when used as highperformance sorbents. Effective carbon sorbents for pertechnetate ion are activated carbons, which also have a large specific surface area. On this basis, carbon nanomaterials can also extract pertechnetate ion from aqueous solutions. The sorption characteristics of the diamond-containing charge and ultradisperse diamonds (UDD) with respect to the aqueous solution of potassium pertechnetate were studied as the materials studied. The diamond-containing charge and its product after acid purification of UDD showed high sorption ability with respect to pertechnetate ion (~ 98%) in a neutral medium. In a strongly acidic medium (pH = 1) for UDD, the degree of sorption was 80%. References 1. Ya.A. Obruchnikova, A.A. Shiryaev, A.M. Safiulina, A.V. Karpukhin, I.I. Kulakova, K.E. German. TECHNETIUM(VII) SORPTION BY MODIFIED NANODIAMONDS FROM AQUEOUS AND NITRIC ACID SOLUTIONS. 7th International Symposium on Technetium and Rhenium – Science and Utilization – BOOK OF PROCEEDINGS - July 4 -8, 2011, Moscow, Russia (Eds. K.E. German, B.F. Myasoedov, G.E. Kodina, A.Ya. Maruk, I. D. Troshkina). M. Granica eds. 2011, P. 440. 2. V.Yu. Dolmatov, Russ. Chem. Rev. 76: 375-397. 3. I.I. Kulakova, Solid State Physics 46: 621-629 (2004). 4. S.I. Chukhaeva, L.A. Cheburina, Superhard materials (Russ.) 2: 43-48 (2000). 5. A. Kruger et al., Carbon 43: 1722-1730 (2005) 0 20 40 60 80 100 Degree of sorption,% UDD рН=1 UDD The diamond-containing charge The work was carried out with partial funding by the Ministry of Science and Higher Education of the Russian Federation (Project No. AAAA-A16-116110910010-3)