Structural and adsorption properties of active carbon from coconut shells modified with phosphorus heteroatoms

Autor:	V. M. Vikarchuk, N. N. Tsyba, Olga I. Poddubnaya, S. S. Stavitskaya, A. M. Puzii
Rok vydání:	2012
Předmět:	chemistry.chemical_classification Chemistry Phosphorus Inorganic chemistry Heteroatom Potentiometric titration chemistry.chemical_element General Chemistry Phosphate chemistry.chemical_compound Adsorption Compounds of carbon Carbon Phosphoric acid
Zdroj:	Theoretical and Experimental Chemistry. 48:272-277
ISSN:	1573-935X 0040-5760
DOI:	10.1007/s11237-012-9272-8
Popis:	New phosphorus-containing carbon adsorbents have been obtained by modification of coconut shells with phosphoric acid at temperatures of 400-900 °C in a stream of argon. The carbon modified with phosphoric acid has a somewhat reduced porous structure. The presence of 4-5 types of surface group, 22-29% of which contained phosphate groups, was demonstrated by potentiometric titration. The quantity of phosphate groups increased when the temperature of the thermal treatment was increased. The phosphate-containing carbon has a greater adsorption capacity with respect to heavy metals than oxidized carbon.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4d7b52e532f8054822d47be3170d382a https://doi.org/10.1007/s11237-012-9272-8 Zobrazit plný text záznamu Plný text ve formátu PDF