Removal of Pb<sup>2+</sup> from aqueous solutions using K-type zeolite synthesized from coal fly ash

© 2020 by the authors. In this study, a novel zeolite (K-type zeolite) was synthesized from coal fly ash (FA), and adsorption capacity on Pb2+ was assessed. Six types of zeolite (FA1, FA3, FA6, FA12, FA24, and FA48) were prepared, and their physicochemical properties, such as surface functional grou...

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Main Authors: Yuhei Kobayashi, Fumihiko Ogata, Chalermpong Saenjum, Takehiro Nakamura, Naohito Kawasaki
Format: Journal
Published: 2020
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/69971
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-699712020-10-14T08:35:29Z Removal of Pb<sup>2+</sup> from aqueous solutions using K-type zeolite synthesized from coal fly ash Yuhei Kobayashi Fumihiko Ogata Chalermpong Saenjum Takehiro Nakamura Naohito Kawasaki Agricultural and Biological Sciences Biochemistry, Genetics and Molecular Biology Environmental Science © 2020 by the authors. In this study, a novel zeolite (K-type zeolite) was synthesized from coal fly ash (FA), and adsorption capacity on Pb2+ was assessed. Six types of zeolite (FA1, FA3, FA6, FA12, FA24, and FA48) were prepared, and their physicochemical properties, such as surface functional groups, cation exchange capacity, pHpzc, specific surface area, and pore volume, were evaluated. The quantity of Pb2+ adsorbed by the prepared zeolites followed the order FA < FA1 < FA3 < FA6 < FA12 < FA24 < FA48. Current results indicate that the level of Pb2+ adsorbed was strongly related to the surface characteristics of the adsorbent. Additionally, the correlation coefficient between the amounts of Pb2+ adsorbed and K+ released from FA48 was 0.958. Thus, ion exchange with K+ in the interlayer of FA48 is critical for the removal of Pb2+ from aqueous media. The new binding energies of Pb(4f) at 135 and 140 eV were detected after adsorption. Moreover, FA48 showed selectivity for Pb2+ adsorption in binary solution systems containing cations. The results revealed that FA48 could be useful for removing Pb2+ from aqueous media. 2020-10-14T08:22:37Z 2020-10-14T08:22:37Z 2020-09-01 Journal 20734441 2-s2.0-85091074285 10.3390/W12092375 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85091074285&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/69971
institution Chiang Mai University
building Chiang Mai University Library
continent Asia
country Thailand
Thailand
content_provider Chiang Mai University Library
collection CMU Intellectual Repository
topic Agricultural and Biological Sciences
Biochemistry, Genetics and Molecular Biology
Environmental Science
spellingShingle Agricultural and Biological Sciences
Biochemistry, Genetics and Molecular Biology
Environmental Science
Yuhei Kobayashi
Fumihiko Ogata
Chalermpong Saenjum
Takehiro Nakamura
Naohito Kawasaki
Removal of Pb<sup>2+</sup> from aqueous solutions using K-type zeolite synthesized from coal fly ash
description © 2020 by the authors. In this study, a novel zeolite (K-type zeolite) was synthesized from coal fly ash (FA), and adsorption capacity on Pb2+ was assessed. Six types of zeolite (FA1, FA3, FA6, FA12, FA24, and FA48) were prepared, and their physicochemical properties, such as surface functional groups, cation exchange capacity, pHpzc, specific surface area, and pore volume, were evaluated. The quantity of Pb2+ adsorbed by the prepared zeolites followed the order FA < FA1 < FA3 < FA6 < FA12 < FA24 < FA48. Current results indicate that the level of Pb2+ adsorbed was strongly related to the surface characteristics of the adsorbent. Additionally, the correlation coefficient between the amounts of Pb2+ adsorbed and K+ released from FA48 was 0.958. Thus, ion exchange with K+ in the interlayer of FA48 is critical for the removal of Pb2+ from aqueous media. The new binding energies of Pb(4f) at 135 and 140 eV were detected after adsorption. Moreover, FA48 showed selectivity for Pb2+ adsorption in binary solution systems containing cations. The results revealed that FA48 could be useful for removing Pb2+ from aqueous media.
format Journal
author Yuhei Kobayashi
Fumihiko Ogata
Chalermpong Saenjum
Takehiro Nakamura
Naohito Kawasaki
author_facet Yuhei Kobayashi
Fumihiko Ogata
Chalermpong Saenjum
Takehiro Nakamura
Naohito Kawasaki
author_sort Yuhei Kobayashi
title Removal of Pb<sup>2+</sup> from aqueous solutions using K-type zeolite synthesized from coal fly ash
title_short Removal of Pb<sup>2+</sup> from aqueous solutions using K-type zeolite synthesized from coal fly ash
title_full Removal of Pb<sup>2+</sup> from aqueous solutions using K-type zeolite synthesized from coal fly ash
title_fullStr Removal of Pb<sup>2+</sup> from aqueous solutions using K-type zeolite synthesized from coal fly ash
title_full_unstemmed Removal of Pb<sup>2+</sup> from aqueous solutions using K-type zeolite synthesized from coal fly ash
title_sort removal of pb<sup>2+</sup> from aqueous solutions using k-type zeolite synthesized from coal fly ash
publishDate 2020
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85091074285&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/69971
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