A Novel Coordination Polymer as Adsorbent Used to Remove Hg(II) and Pb(II) from Water with Different Adsorption Mechanisms

[Image: see text] Under the hydrothermal condition, a new type of two-dimensional coordination polymer ([Cd(D-Cam)(3-bpdb)](n), Cd-CP) has been constructed. It is composed of D-(+)-Camphoric-Cd(II) (D-cam-Cd(II)) one-dimensional chain and bridging 1,4-bis(3-pyridyl)-2,3-diaza-1,3-butadiene (3-bpdb)...

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Autores principales: Wang, Rui-Dong, He, Mei, Li, Zhihao, Niu, Zongling, Zhu, Rong-Rong, Zhang, Wen-Qian, Zhang, Suoshu, Du, Lin, Zhao, Qi-Hua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8973041/
https://www.ncbi.nlm.nih.gov/pubmed/35382326
http://dx.doi.org/10.1021/acsomega.1c06606
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author Wang, Rui-Dong
He, Mei
Li, Zhihao
Niu, Zongling
Zhu, Rong-Rong
Zhang, Wen-Qian
Zhang, Suoshu
Du, Lin
Zhao, Qi-Hua
author_facet Wang, Rui-Dong
He, Mei
Li, Zhihao
Niu, Zongling
Zhu, Rong-Rong
Zhang, Wen-Qian
Zhang, Suoshu
Du, Lin
Zhao, Qi-Hua
author_sort Wang, Rui-Dong
collection PubMed
description [Image: see text] Under the hydrothermal condition, a new type of two-dimensional coordination polymer ([Cd(D-Cam)(3-bpdb)](n), Cd-CP) has been constructed. It is composed of D-(+)-Camphoric-Cd(II) (D-cam-Cd(II)) one-dimensional chain and bridging 1,4-bis(3-pyridyl)-2,3-diaza-1,3-butadiene (3-bpdb) ligands. Cd-CP has a good removal effect for Hg(II) and Pb(II), and the maximum adsorption capacity is 545 and 450 mg/g, respectively. Interestingly, thermodynamic studies have shown that the adsorption processes of Hg(II) and Pb(II) on Cd-CP use completely different thermodynamic mechanisms, in which the adsorption of Hg(II) is due to a strong electrostatic interaction with Cd-CP, while that of Pb(II) is through a weak coordination with Cd-CP. Moreover, Cd-CP has a higher affinity for Hg(II), and when Hg(II) and Pb(II) coexist, Cd-CP preferentially adsorbs Hg(II).
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spelling pubmed-89730412022-04-04 A Novel Coordination Polymer as Adsorbent Used to Remove Hg(II) and Pb(II) from Water with Different Adsorption Mechanisms Wang, Rui-Dong He, Mei Li, Zhihao Niu, Zongling Zhu, Rong-Rong Zhang, Wen-Qian Zhang, Suoshu Du, Lin Zhao, Qi-Hua ACS Omega [Image: see text] Under the hydrothermal condition, a new type of two-dimensional coordination polymer ([Cd(D-Cam)(3-bpdb)](n), Cd-CP) has been constructed. It is composed of D-(+)-Camphoric-Cd(II) (D-cam-Cd(II)) one-dimensional chain and bridging 1,4-bis(3-pyridyl)-2,3-diaza-1,3-butadiene (3-bpdb) ligands. Cd-CP has a good removal effect for Hg(II) and Pb(II), and the maximum adsorption capacity is 545 and 450 mg/g, respectively. Interestingly, thermodynamic studies have shown that the adsorption processes of Hg(II) and Pb(II) on Cd-CP use completely different thermodynamic mechanisms, in which the adsorption of Hg(II) is due to a strong electrostatic interaction with Cd-CP, while that of Pb(II) is through a weak coordination with Cd-CP. Moreover, Cd-CP has a higher affinity for Hg(II), and when Hg(II) and Pb(II) coexist, Cd-CP preferentially adsorbs Hg(II). American Chemical Society 2022-03-15 /pmc/articles/PMC8973041/ /pubmed/35382326 http://dx.doi.org/10.1021/acsomega.1c06606 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Wang, Rui-Dong
He, Mei
Li, Zhihao
Niu, Zongling
Zhu, Rong-Rong
Zhang, Wen-Qian
Zhang, Suoshu
Du, Lin
Zhao, Qi-Hua
A Novel Coordination Polymer as Adsorbent Used to Remove Hg(II) and Pb(II) from Water with Different Adsorption Mechanisms
title A Novel Coordination Polymer as Adsorbent Used to Remove Hg(II) and Pb(II) from Water with Different Adsorption Mechanisms
title_full A Novel Coordination Polymer as Adsorbent Used to Remove Hg(II) and Pb(II) from Water with Different Adsorption Mechanisms
title_fullStr A Novel Coordination Polymer as Adsorbent Used to Remove Hg(II) and Pb(II) from Water with Different Adsorption Mechanisms
title_full_unstemmed A Novel Coordination Polymer as Adsorbent Used to Remove Hg(II) and Pb(II) from Water with Different Adsorption Mechanisms
title_short A Novel Coordination Polymer as Adsorbent Used to Remove Hg(II) and Pb(II) from Water with Different Adsorption Mechanisms
title_sort novel coordination polymer as adsorbent used to remove hg(ii) and pb(ii) from water with different adsorption mechanisms
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8973041/
https://www.ncbi.nlm.nih.gov/pubmed/35382326
http://dx.doi.org/10.1021/acsomega.1c06606
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