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Open AccessArticle

Efficient Adsorption of Pb(II) from Aqueous Solutions by Metal Organic Framework (Zn-BDC) Coated Magnetic Montmorillonite

1
School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, China
2
School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
*
Authors to whom correspondence should be addressed.
Polymers 2018, 10(12), 1383; https://doi.org/10.3390/polym10121383
Received: 29 November 2018 / Revised: 11 December 2018 / Accepted: 12 December 2018 / Published: 13 December 2018
(This article belongs to the Special Issue Metal-Organic Frameworks)
Composite adsorption materials combine the advantages of various adsorptive materials and compensate for the defects of single adsorbents. Magnetic montmorillonite (MMMT) shows good adsorption properties for Pb(II). In order to further improve the adsorption properties of MMMT, in this work, Zn-BDC, a kind of metal–organic framework (MOF), was modified onto the surface of MMMT by in situ polymerization. The composite material [email protected] was characterized by Zetasizer, SEM, TEM, FTIR, XRD, VSM, and XPS. The influence of adsorption conditions on the adsorption capacity of [email protected] for Pb(II) was examined, including the adsorbent dosage, pH of Pb(II) solution, initial concentration of Pb(II), and the temperature and adsorption time. Also, the adsorption mechanism was studied. The results of this study show that [email protected] adsorbs Pb(II) via chemisorption. In addition, [email protected] exhibits good potential for adsorbing Pb(II), including its high adsorption capacity (724.64 mg/g) and good recyclability. View Full-Text
Keywords: Zn-BDC; magnetic montmorillonite; Pb(II); adsorption Zn-BDC; magnetic montmorillonite; Pb(II); adsorption
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MDPI and ACS Style

Shen, J.; Wang, N.; Wang, Y.G.; Yu, D.; Ouyang, X. Efficient Adsorption of Pb(II) from Aqueous Solutions by Metal Organic Framework (Zn-BDC) Coated Magnetic Montmorillonite. Polymers 2018, 10, 1383.

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