Chitosan Functionalized with 2-Methylpyridine Cross-Linker Cellulose to Adsorb Pb(II) from Water

Autor:	Edgar F. Morán-Palacio, Luis Hernández-García, Mario Sánchez, Raquel Garza-Hernández, Mario Almada, Jorge Lozano-Montante, Guillermo Niño-Medina
Rok vydání:	2021
Předmět:	Aqueous solution Polymers and Plastics 2-Methylpyridine Succinic anhydride Organic chemistry General Chemistry Article cellulose Chitosan chemistry.chemical_compound QD241-441 Adsorption chemistry adsorption kinetics Succinic acid Pyridine isotherms chitosan Cellulose Nuclear chemistry
Zdroj:	Polymers Volume 13 Issue 18 Polymers, Vol 13, Iss 3166, p 3166 (2021)
ISSN:	2073-4360
Popis:	In this study, chitosan was chemically modified with 2-methylpyridine. Subsequently, the modified chitosan was cross-linked to cellulose using succinic anhydride. Additionally, the capacity of cellulose derivatives to adsorb Pb(II) ions in an aqueous solution was studied through the determination of Pb(II) ions concentration in water, using microwave plasma atomic emission spectroscopy (MP-AES). A maximum adsorption capacity of 6.62, 43.14, 60.6, and 80.26 mg/g was found for cellulose, cellulose-succinic acid, cellulose-chitosan, and cellulose-chitosan-pyridine, respectively. The kinetic data analysis of the adsorption process showed a pseudo-second-order behavior. The increase in metal removal from water is possibly due to metal chelation with the carbonyl group of succinic acid, and the pyridine groups incorporated into chitosan.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f568b78ecb7cf0b58db64b3a881fa962 https://doi.org/10.3390/polym13183166 Zobrazit plný text záznamu Plný text ve formátu PDF