Activated carbon sorbent with thioetheric sites—preparation and characterization

Autor:	Galia Gentscheva, O. Peshev, P. Vassileva, Elisaveta Ivanova, P. Tzvetkova, L. Lakov
Rok vydání:	2007
Předmět:	Sorbent Chemistry Mechanical Engineering Inorganic chemistry chemistry.chemical_element Sorption Catalysis Mechanics of Materials Specific surface area medicine General Materials Science Platinum Selectivity Nuclear chemistry Palladium Activated carbon medicine.drug
Zdroj:	Journal of Porous Materials. 15:331-334
ISSN:	1573-4854 1380-2224
DOI:	10.1007/s10934-006-9092-0
Popis:	An activated carbon sorbent containing thioetheric sites (ACTS) was prepared by modification of the activated carbon with 2,2′-thiodiethanol. The specific surface area, pore volume, concentration of oxygen-containing groups and sulfur content of the sorbent were determined. The sorption behavior towards ions of some precious metals—Au(III), Pt(IV), Pd(II) and heavy metals—Ni(II), Zn(II), Fe(III), Cu(II), Pb(II), Cd(II) and Co(II) was studied. Selectivity towards gold, palladium and platinum in the pH range 1–9 was observed. The capacity for gold was 80 mg g−1. The sorption of Au(III) at pH 1 is not affected by milligram amounts of Ni(II), Zn(II), Fe(III), Cu(II), Pb(II), Cd(II) and Co(II). The sorbed gold species is Au(0).
Databáze:	OpenAIRE
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