Removal of Heavy Metal Ions from One- and Two-Component Solutions via Adsorption on N-Doped Activated Carbon

This paper deals with the adsorption of heavy metal ions (Cu<sup>2+</sup> and Zn<sup>2+</sup>) on the carbonaceous materials obtained by chemical activation and ammoxidation of Polish brown coal. The effects of phase contact time, initial metal ion concentration, solution pH,...

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Autores principales:	Justyna Kazmierczak-Razna, Anetta Zioła-Frankowska, Piotr Nowicki, Marcin Frankowski, Robert Wolski, Robert Pietrzak
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	brown coal activated carbons chemical activation ammoxidation heavy metals simultaneous adsorption Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/e0794fe4040b405c9af5705e0de728b3
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spelling	oai:doaj.org-article:e0794fe4040b405c9af5705e0de728b32021-11-25T18:15:56ZRemoval of Heavy Metal Ions from One- and Two-Component Solutions via Adsorption on N-Doped Activated Carbon10.3390/ma142270451996-1944https://doaj.org/article/e0794fe4040b405c9af5705e0de728b32021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/7045https://doaj.org/toc/1996-1944This paper deals with the adsorption of heavy metal ions (Cu<sup>2+</sup> and Zn<sup>2+</sup>) on the carbonaceous materials obtained by chemical activation and ammoxidation of Polish brown coal. The effects of phase contact time, initial metal ion concentration, solution pH, and temperature, as well as the presence of competitive ions in solution, on the adsorption capacity of activated carbons were examined. It has been shown that the sample modified by introduction of nitrogen functional groups into carbon structure exhibits a greater ability to uptake heavy metals than unmodified activated carbon. It has also been found that the adsorption capacity increases with the increasing initial concentration of the solution and the phase contact time. The maximum adsorption was found at pH = 8.0 for Cu(II) and pH = 6.0 for Zn(II). For all samples, better fit to the experimental data was obtained with a Langmuir isotherm than a Freundlich one. A better fit of the kinetic data was achieved using the pseudo-second order model.Justyna Kazmierczak-RaznaAnetta Zioła-FrankowskaPiotr NowickiMarcin FrankowskiRobert WolskiRobert PietrzakMDPI AGarticlebrown coalactivated carbonschemical activationammoxidationheavy metalssimultaneous adsorptionTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 7045, p 7045 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	brown coal activated carbons chemical activation ammoxidation heavy metals simultaneous adsorption Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	brown coal activated carbons chemical activation ammoxidation heavy metals simultaneous adsorption Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Justyna Kazmierczak-Razna Anetta Zioła-Frankowska Piotr Nowicki Marcin Frankowski Robert Wolski Robert Pietrzak Removal of Heavy Metal Ions from One- and Two-Component Solutions via Adsorption on N-Doped Activated Carbon
description	This paper deals with the adsorption of heavy metal ions (Cu<sup>2+</sup> and Zn<sup>2+</sup>) on the carbonaceous materials obtained by chemical activation and ammoxidation of Polish brown coal. The effects of phase contact time, initial metal ion concentration, solution pH, and temperature, as well as the presence of competitive ions in solution, on the adsorption capacity of activated carbons were examined. It has been shown that the sample modified by introduction of nitrogen functional groups into carbon structure exhibits a greater ability to uptake heavy metals than unmodified activated carbon. It has also been found that the adsorption capacity increases with the increasing initial concentration of the solution and the phase contact time. The maximum adsorption was found at pH = 8.0 for Cu(II) and pH = 6.0 for Zn(II). For all samples, better fit to the experimental data was obtained with a Langmuir isotherm than a Freundlich one. A better fit of the kinetic data was achieved using the pseudo-second order model.
format	article
author	Justyna Kazmierczak-Razna Anetta Zioła-Frankowska Piotr Nowicki Marcin Frankowski Robert Wolski Robert Pietrzak
author_facet	Justyna Kazmierczak-Razna Anetta Zioła-Frankowska Piotr Nowicki Marcin Frankowski Robert Wolski Robert Pietrzak
author_sort	Justyna Kazmierczak-Razna
title	Removal of Heavy Metal Ions from One- and Two-Component Solutions via Adsorption on N-Doped Activated Carbon
title_short	Removal of Heavy Metal Ions from One- and Two-Component Solutions via Adsorption on N-Doped Activated Carbon
title_full	Removal of Heavy Metal Ions from One- and Two-Component Solutions via Adsorption on N-Doped Activated Carbon
title_fullStr	Removal of Heavy Metal Ions from One- and Two-Component Solutions via Adsorption on N-Doped Activated Carbon
title_full_unstemmed	Removal of Heavy Metal Ions from One- and Two-Component Solutions via Adsorption on N-Doped Activated Carbon
title_sort	removal of heavy metal ions from one- and two-component solutions via adsorption on n-doped activated carbon
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e0794fe4040b405c9af5705e0de728b3
work_keys_str_mv	AT justynakazmierczakrazna removalofheavymetalionsfromoneandtwocomponentsolutionsviaadsorptiononndopedactivatedcarbon AT anettaziołafrankowska removalofheavymetalionsfromoneandtwocomponentsolutionsviaadsorptiononndopedactivatedcarbon AT piotrnowicki removalofheavymetalionsfromoneandtwocomponentsolutionsviaadsorptiononndopedactivatedcarbon AT marcinfrankowski removalofheavymetalionsfromoneandtwocomponentsolutionsviaadsorptiononndopedactivatedcarbon AT robertwolski removalofheavymetalionsfromoneandtwocomponentsolutionsviaadsorptiononndopedactivatedcarbon AT robertpietrzak removalofheavymetalionsfromoneandtwocomponentsolutionsviaadsorptiononndopedactivatedcarbon
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Removal of Heavy Metal Ions from One- and Two-Component Solutions via Adsorption on N-Doped Activated Carbon

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