Eu(III) removal by tetrabutylammonium di-hydrogen phosphate (TBAH2P) functionalized polymers

Autor: Narcis Duteanu, Corneliu Mircea Davidescu, Petru Negrea, Mihaela Ciopec, Adina Negrea, Andreea Gabor
Rok vydání: 2020
Předmět:
Zdroj: Arabian Journal of Chemistry, Vol 13, Iss 1, Pp 3534-3545 (2020)
ISSN: 1878-5352
DOI: 10.1016/j.arabjc.2018.12.005
Popis: Polymers involved as adsorbent materials during Eu(III) removal tests were prepared by functionalization of a natural polymer – cellulose, and a commercial one represented by Amberlite XAD7. As extractant, we used tetrabutil ammonium di-hydrogen phosphate (TBAH2P) which is a cheap and environmentally friendly product. Impregnated polymers using a rotavapor system in which the quaternary ammonium salt used as extractant was concentrated on to the used polymer. Later obtained materials were characterized by Fourier Transformed Infrared Spectroscopy (FTIR) and X-Ray electron dispersion (EDX). During experimental test we determine pH, contact time, Eu(III) initial concentration and temperature effect on the functionalized polymers adsorption capacity. Therewith for both functionalized polymers, a comparison was made between the adsorption process characteristics based on kinetics and thermodynamic studies. Keywords: Europium, Cellulose, Amberlite XAD7, Adsorption, Adsorption isotherm
Databáze: OpenAIRE