Preparation of MnO2 modified magnetic graphitic carbon nitride composite and its adsorption toward Pb(II) in waste water

Based on graphitic carbon nitride (CN) nanosheets, a novel MnO2 modified magnetic graphitic carbon nitride composite (MMCN) was prepared via magnetization and in-situ deposition of MnO2. Then, an array of characterizations and experiments were conducted to explore the physical and chemical propertie...

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Autores principales:	Wenning Xia, Yaochi Liu
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	adsorption graphitic carbon nitride magnetic mno2 pb(ii) Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/63037d1fcb504600b26508f1b1a3c8bb
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spelling	oai:doaj.org-article:63037d1fcb504600b26508f1b1a3c8bb2021-11-05T21:17:36ZPreparation of MnO2 modified magnetic graphitic carbon nitride composite and its adsorption toward Pb(II) in waste water1751-231X10.2166/wpt.2021.059https://doaj.org/article/63037d1fcb504600b26508f1b1a3c8bb2021-10-01T00:00:00Zhttp://wpt.iwaponline.com/content/16/4/1498https://doaj.org/toc/1751-231XBased on graphitic carbon nitride (CN) nanosheets, a novel MnO2 modified magnetic graphitic carbon nitride composite (MMCN) was prepared via magnetization and in-situ deposition of MnO2. Then, an array of characterizations and experiments were conducted to explore the physical and chemical properties of the synthesized MMCN material. The adsorption behavior and removal mechanism of the MMCN were also discussed intensively. The best pH value of Pb(II) of MMCN was 6. The maximum adsorption capacity of MMCN was as high as 187.6 mg/g, which was much higher than that of MCN and original CN, and removal percentage of Pb(II) was about 99%. The adsorption kinetics and isotherms were in accordance with the pseudo-second-order model and Langmuir model, respectively. The chemical adsorption of Pb(II) indicated that MMCN was a successful modified sorbent and pretty efficient to remove Pb(II) in an aqueous medium owing to the complexation and ion exchange of ample amino and hydroxyl groups. Moreover, MMCN could be separated easily from the aqueous medium under an external field after reaction with its magnetic performance. HIGHLIGHTS A novel MnO2 modified magnetic graphitic carbon nitride composite (MMCN) was prepared.; The maximum adsorption capacity of MMCN toward Pb(II) was 187.6 mg/g and removal percentage of Pb(II) was around 99%.; Characterization and batch experiments were conducted to investigate adsorption mechanism.; The MMCN was a successful modified adsorbent and efficient to remove Pb(II) in aqueous medium.;Wenning XiaYaochi LiuIWA Publishingarticleadsorptiongraphitic carbon nitridemagneticmno2pb(ii)Environmental technology. Sanitary engineeringTD1-1066ENWater Practice and Technology, Vol 16, Iss 4, Pp 1498-1509 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	adsorption graphitic carbon nitride magnetic mno2 pb(ii) Environmental technology. Sanitary engineering TD1-1066
spellingShingle	adsorption graphitic carbon nitride magnetic mno2 pb(ii) Environmental technology. Sanitary engineering TD1-1066 Wenning Xia Yaochi Liu Preparation of MnO2 modified magnetic graphitic carbon nitride composite and its adsorption toward Pb(II) in waste water
description	Based on graphitic carbon nitride (CN) nanosheets, a novel MnO2 modified magnetic graphitic carbon nitride composite (MMCN) was prepared via magnetization and in-situ deposition of MnO2. Then, an array of characterizations and experiments were conducted to explore the physical and chemical properties of the synthesized MMCN material. The adsorption behavior and removal mechanism of the MMCN were also discussed intensively. The best pH value of Pb(II) of MMCN was 6. The maximum adsorption capacity of MMCN was as high as 187.6 mg/g, which was much higher than that of MCN and original CN, and removal percentage of Pb(II) was about 99%. The adsorption kinetics and isotherms were in accordance with the pseudo-second-order model and Langmuir model, respectively. The chemical adsorption of Pb(II) indicated that MMCN was a successful modified sorbent and pretty efficient to remove Pb(II) in an aqueous medium owing to the complexation and ion exchange of ample amino and hydroxyl groups. Moreover, MMCN could be separated easily from the aqueous medium under an external field after reaction with its magnetic performance. HIGHLIGHTS A novel MnO2 modified magnetic graphitic carbon nitride composite (MMCN) was prepared.; The maximum adsorption capacity of MMCN toward Pb(II) was 187.6 mg/g and removal percentage of Pb(II) was around 99%.; Characterization and batch experiments were conducted to investigate adsorption mechanism.; The MMCN was a successful modified adsorbent and efficient to remove Pb(II) in aqueous medium.;
format	article
author	Wenning Xia Yaochi Liu
author_facet	Wenning Xia Yaochi Liu
author_sort	Wenning Xia
title	Preparation of MnO2 modified magnetic graphitic carbon nitride composite and its adsorption toward Pb(II) in waste water
title_short	Preparation of MnO2 modified magnetic graphitic carbon nitride composite and its adsorption toward Pb(II) in waste water
title_full	Preparation of MnO2 modified magnetic graphitic carbon nitride composite and its adsorption toward Pb(II) in waste water
title_fullStr	Preparation of MnO2 modified magnetic graphitic carbon nitride composite and its adsorption toward Pb(II) in waste water
title_full_unstemmed	Preparation of MnO2 modified magnetic graphitic carbon nitride composite and its adsorption toward Pb(II) in waste water
title_sort	preparation of mno2 modified magnetic graphitic carbon nitride composite and its adsorption toward pb(ii) in waste water
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/63037d1fcb504600b26508f1b1a3c8bb
work_keys_str_mv	AT wenningxia preparationofmno2modifiedmagneticgraphiticcarbonnitridecompositeanditsadsorptiontowardpbiiinwastewater AT yaochiliu preparationofmno2modifiedmagneticgraphiticcarbonnitridecompositeanditsadsorptiontowardpbiiinwastewater
_version_	1718443983406891008

Preparation of MnO2 modified magnetic graphitic carbon nitride composite and its adsorption toward Pb(II) in waste water

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