NDLI: Adsorption Performance of Amino Functionalized Magnetic Molecular Sieve Adsorbent for Effective Removal of Lead Ion from Aqueous Solution

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Adsorption Performance of Amino Functionalized Magnetic Molecular Sieve Adsorbent for Effective Removal of Lead Ion from Aqueous Solution

Content Provider	MDPI
Author	Guo, Chuanen Wang, Yingying Wang, Fangzheng Wang, Yaoguang
Copyright Year	2021
Description	Lead ion $(Pb^{2+}$) has high toxicity and brings great harm to human body. It is very important to find an effective method to address lead ion pollution. In this work, amino functionalized $CoFe_{2}O_{4}$/SBA–15 nanocomposite $(NH_{2}–CoFe_{2}O_{4}$/SBA–15) was prepared for the effective removal of $Pb^{2+}$ from aqueous solution. The prepared $NH_{2}–CoFe_{2}O_{4}$/SBA–15 adsorbent was manifested by using scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), Fourier transform infrared spectrum (FTIR), X-ray powder diffraction (XRD), and Brunauer-Emmett-Teller (BET) analysis. In the meantime, the adsorption conditions, including pH, adsorbent dosage, and adsorption time, were studied. The investigation of adsorption kinetics revealed that the adsorption results conform to the pseudo-first-order kinetic model. The adsorption isotherms research displayed that the adsorption was consistent with the Freundlich model, demonstrating that the adsorption for $Pb^{2+}$ with the prepared adsorbent was a multimolecular layer adsorption process. In addition, the thermodynamic investigations (ΔG < 0, ΔH > 0, ΔS > 0) demonstrated that the adsorption for $Pb^{2+}$ with the prepared adsorbent was endothermic and spontaneous. Moreover, the prepared adsorbent showed superior anti-interference performance and reusability, implying the potential application of the adsorbent in actual water treatment. Furthermore, this research may provide a reference and basis for the study of other heavy metal ions.
Starting Page	2353
e-ISSN	20794991
DOI	10.3390/nano11092353
Journal	Nanomaterials
Issue Number	9
Volume Number	11
Language	English
Publisher	MDPI
Publisher Date	2021-09-11
Access Restriction	Open
Subject Keyword	Nanomaterials Water Science and Technology Adsorption Amino Functionalized Cofe2o4 Sba–15 Magnetic Separation Lead Ion
Content Type	Text
Resource Type	Article

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