Removal of cadmium and lead from aqueous solutions using iron phosphate-modified pollen microspheres as adsorbents

Iron phosphate-modified pollen microspheres (pollen@FePO4) were prepared and applied as sorbents for the removal of heavy metals (Cd2+ and Pb2+) from the aqueous solution. Batch sorption studies were conducted to investigate the effects of solution pH, contact time, sorbent dosage, and metal concent...

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Autores principales:	Zhang Xiaoxing, Liu Hui, Yang Jin, Zhang Li, Cao Binxia, Liu Libo, Gong Weimin
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	iron phosphate pollen heavy metals adsorption kinetic isotherm Technology T Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/b9db7fe0cfa840e28293bd1fb5816400
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spelling	oai:doaj.org-article:b9db7fe0cfa840e28293bd1fb58164002021-12-05T14:11:03ZRemoval of cadmium and lead from aqueous solutions using iron phosphate-modified pollen microspheres as adsorbents1605-812710.1515/rams-2021-0035https://doaj.org/article/b9db7fe0cfa840e28293bd1fb58164002021-06-01T00:00:00Zhttps://doi.org/10.1515/rams-2021-0035https://doaj.org/toc/1605-8127Iron phosphate-modified pollen microspheres (pollen@FePO4) were prepared and applied as sorbents for the removal of heavy metals (Cd2+ and Pb2+) from the aqueous solution. Batch sorption studies were conducted to investigate the effects of solution pH, contact time, sorbent dosage, and metal concentration on the adsorption process. The sorption of Cd2+ and Pb2+ ions on pollen@FePO4 corresponds to the pseudo-second-order model and Langmuir isotherm, which is similar to the unmodified pollen. At pH 5.92, pollen@FePO4 offers maximum adsorption capacities of 4.623 and 61.35 mg·g−1 for Cd2+ and Pb2+, respectively. The faster sorption kinetics and higher adsorption capacities of Cd2+ and Pb2+ ions onto pollen@FePO4 than pollen indicates that it might be a promising material for the removal of heavy metal ions in aqueous solutions. The possible adsorption mechanism involves electrostatic and chemisorption for Cd2+ and mainly complexion for Pb2+.Zhang XiaoxingLiu HuiYang JinZhang LiCao BinxiaLiu LiboGong WeiminDe Gruyterarticleiron phosphatepollenheavy metalsadsorptionkineticisothermTechnologyTChemical technologyTP1-1185ENReviews on Advanced Materials Science, Vol 60, Iss 1, Pp 365-376 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	iron phosphate pollen heavy metals adsorption kinetic isotherm Technology T Chemical technology TP1-1185
spellingShingle	iron phosphate pollen heavy metals adsorption kinetic isotherm Technology T Chemical technology TP1-1185 Zhang Xiaoxing Liu Hui Yang Jin Zhang Li Cao Binxia Liu Libo Gong Weimin Removal of cadmium and lead from aqueous solutions using iron phosphate-modified pollen microspheres as adsorbents
description	Iron phosphate-modified pollen microspheres (pollen@FePO4) were prepared and applied as sorbents for the removal of heavy metals (Cd2+ and Pb2+) from the aqueous solution. Batch sorption studies were conducted to investigate the effects of solution pH, contact time, sorbent dosage, and metal concentration on the adsorption process. The sorption of Cd2+ and Pb2+ ions on pollen@FePO4 corresponds to the pseudo-second-order model and Langmuir isotherm, which is similar to the unmodified pollen. At pH 5.92, pollen@FePO4 offers maximum adsorption capacities of 4.623 and 61.35 mg·g−1 for Cd2+ and Pb2+, respectively. The faster sorption kinetics and higher adsorption capacities of Cd2+ and Pb2+ ions onto pollen@FePO4 than pollen indicates that it might be a promising material for the removal of heavy metal ions in aqueous solutions. The possible adsorption mechanism involves electrostatic and chemisorption for Cd2+ and mainly complexion for Pb2+.
format	article
author	Zhang Xiaoxing Liu Hui Yang Jin Zhang Li Cao Binxia Liu Libo Gong Weimin
author_facet	Zhang Xiaoxing Liu Hui Yang Jin Zhang Li Cao Binxia Liu Libo Gong Weimin
author_sort	Zhang Xiaoxing
title	Removal of cadmium and lead from aqueous solutions using iron phosphate-modified pollen microspheres as adsorbents
title_short	Removal of cadmium and lead from aqueous solutions using iron phosphate-modified pollen microspheres as adsorbents
title_full	Removal of cadmium and lead from aqueous solutions using iron phosphate-modified pollen microspheres as adsorbents
title_fullStr	Removal of cadmium and lead from aqueous solutions using iron phosphate-modified pollen microspheres as adsorbents
title_full_unstemmed	Removal of cadmium and lead from aqueous solutions using iron phosphate-modified pollen microspheres as adsorbents
title_sort	removal of cadmium and lead from aqueous solutions using iron phosphate-modified pollen microspheres as adsorbents
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/b9db7fe0cfa840e28293bd1fb5816400
work_keys_str_mv	AT zhangxiaoxing removalofcadmiumandleadfromaqueoussolutionsusingironphosphatemodifiedpollenmicrospheresasadsorbents AT liuhui removalofcadmiumandleadfromaqueoussolutionsusingironphosphatemodifiedpollenmicrospheresasadsorbents AT yangjin removalofcadmiumandleadfromaqueoussolutionsusingironphosphatemodifiedpollenmicrospheresasadsorbents AT zhangli removalofcadmiumandleadfromaqueoussolutionsusingironphosphatemodifiedpollenmicrospheresasadsorbents AT caobinxia removalofcadmiumandleadfromaqueoussolutionsusingironphosphatemodifiedpollenmicrospheresasadsorbents AT liulibo removalofcadmiumandleadfromaqueoussolutionsusingironphosphatemodifiedpollenmicrospheresasadsorbents AT gongweimin removalofcadmiumandleadfromaqueoussolutionsusingironphosphatemodifiedpollenmicrospheresasadsorbents
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Removal of cadmium and lead from aqueous solutions using iron phosphate-modified pollen microspheres as adsorbents

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