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New magnetic silica-based hybrid organic-inorganic nanocomposite for the removal of lead(II) and nickel(II) ions from aqueous solutions

A novel magnetic sol-gel silica-based hybrid organic-inorganic adsorbent (MNPs@SiO 2 -TSD-TEOS) was synthesized by immobilizing silica (SiO 2 ) shell on Fe 3 O 4 magnetic nanoparticles (MNPs) prior to binding with hybrid organic-inorganic tetraethylorthosilicate (TEOS) and N-[3-(trimethoxysilyl)prop...

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Main Authors: Ahmad, Naqhiyah, Sereshti, Hassan, Mousazadeh, Milad, Rashidi Nodeh, Hamid, Kamboh, Muhammad Afzal, Mohamad, Sharifah
Format: Article
Published: Elsevier 2019
Subjects:
Q Science (General)
QD Chemistry
Online Access:http://eprints.um.edu.my/24357/
https://doi.org/10.1016/j.matchemphys.2019.01.002
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spelling my.um.eprints.243572020-05-20T01:52:29Z http://eprints.um.edu.my/24357/ New magnetic silica-based hybrid organic-inorganic nanocomposite for the removal of lead(II) and nickel(II) ions from aqueous solutions Ahmad, Naqhiyah Sereshti, Hassan Mousazadeh, Milad Rashidi Nodeh, Hamid Kamboh, Muhammad Afzal Mohamad, Sharifah Q Science (General) QD Chemistry A novel magnetic sol-gel silica-based hybrid organic-inorganic adsorbent (MNPs@SiO 2 -TSD-TEOS) was synthesized by immobilizing silica (SiO 2 ) shell on Fe 3 O 4 magnetic nanoparticles (MNPs) prior to binding with hybrid organic-inorganic tetraethylorthosilicate (TEOS) and N-[3-(trimethoxysilyl)propyl]ethylenediamine (TSD)). The proposed material was characterized using Fourier transform infrared spectrometer (FTIR), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscope (EDS) and X-ray diffraction (XRD). MNPs@SiO 2 -TSD-TEOS was applied as an adsorbent for the simultaneous adsorption of Pb(II) and Ni(II) ions from aqueous solutions. The adsorption process, reusability test and field application of MNPs@SiO 2 -TSD-TEOS were performed using batch adsorption of metal ions at pH 5. The adsorption process was well-matched to type III isotherm model (multilayer sorption) set by IUPAC. The experimental adsorption data were well-fitted to the Freundlich adsorption isotherm since its coefficient of determination (R 2 = 0.997) is higher than that of the Langmuir isotherm (R 2 = 0.871). The adsorption kinetics were fitted well to pseudo-2 nd -order model as compared to pseudo-1 st -order. Furthermore, the results showed maximum adsorption capacities of 417 and 357 mg g −1 for Pb(II) and Ni(II), respectively. Isotherm model (type III), Freundlich isotherm and pseudo-2 nd -order model confirm a multilayer chemical/physical adsorption process. © 2019 Elsevier B.V. Elsevier 2019 Article PeerReviewed Ahmad, Naqhiyah and Sereshti, Hassan and Mousazadeh, Milad and Rashidi Nodeh, Hamid and Kamboh, Muhammad Afzal and Mohamad, Sharifah (2019) New magnetic silica-based hybrid organic-inorganic nanocomposite for the removal of lead(II) and nickel(II) ions from aqueous solutions. Materials Chemistry and Physics, 226. pp. 73-81. ISSN 0254-0584 https://doi.org/10.1016/j.matchemphys.2019.01.002 doi:10.1016/j.matchemphys.2019.01.002
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
QD Chemistry
spellingShingle Q Science (General)
QD Chemistry
Ahmad, Naqhiyah
Sereshti, Hassan
Mousazadeh, Milad
Rashidi Nodeh, Hamid
Kamboh, Muhammad Afzal
Mohamad, Sharifah
New magnetic silica-based hybrid organic-inorganic nanocomposite for the removal of lead(II) and nickel(II) ions from aqueous solutions
description A novel magnetic sol-gel silica-based hybrid organic-inorganic adsorbent (MNPs@SiO 2 -TSD-TEOS) was synthesized by immobilizing silica (SiO 2 ) shell on Fe 3 O 4 magnetic nanoparticles (MNPs) prior to binding with hybrid organic-inorganic tetraethylorthosilicate (TEOS) and N-[3-(trimethoxysilyl)propyl]ethylenediamine (TSD)). The proposed material was characterized using Fourier transform infrared spectrometer (FTIR), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscope (EDS) and X-ray diffraction (XRD). MNPs@SiO 2 -TSD-TEOS was applied as an adsorbent for the simultaneous adsorption of Pb(II) and Ni(II) ions from aqueous solutions. The adsorption process, reusability test and field application of MNPs@SiO 2 -TSD-TEOS were performed using batch adsorption of metal ions at pH 5. The adsorption process was well-matched to type III isotherm model (multilayer sorption) set by IUPAC. The experimental adsorption data were well-fitted to the Freundlich adsorption isotherm since its coefficient of determination (R 2 = 0.997) is higher than that of the Langmuir isotherm (R 2 = 0.871). The adsorption kinetics were fitted well to pseudo-2 nd -order model as compared to pseudo-1 st -order. Furthermore, the results showed maximum adsorption capacities of 417 and 357 mg g −1 for Pb(II) and Ni(II), respectively. Isotherm model (type III), Freundlich isotherm and pseudo-2 nd -order model confirm a multilayer chemical/physical adsorption process. © 2019 Elsevier B.V.
format Article
author Ahmad, Naqhiyah
Sereshti, Hassan
Mousazadeh, Milad
Rashidi Nodeh, Hamid
Kamboh, Muhammad Afzal
Mohamad, Sharifah
author_facet Ahmad, Naqhiyah
Sereshti, Hassan
Mousazadeh, Milad
Rashidi Nodeh, Hamid
Kamboh, Muhammad Afzal
Mohamad, Sharifah
author_sort Ahmad, Naqhiyah
title New magnetic silica-based hybrid organic-inorganic nanocomposite for the removal of lead(II) and nickel(II) ions from aqueous solutions
title_short New magnetic silica-based hybrid organic-inorganic nanocomposite for the removal of lead(II) and nickel(II) ions from aqueous solutions
title_full New magnetic silica-based hybrid organic-inorganic nanocomposite for the removal of lead(II) and nickel(II) ions from aqueous solutions
title_fullStr New magnetic silica-based hybrid organic-inorganic nanocomposite for the removal of lead(II) and nickel(II) ions from aqueous solutions
title_full_unstemmed New magnetic silica-based hybrid organic-inorganic nanocomposite for the removal of lead(II) and nickel(II) ions from aqueous solutions
title_sort new magnetic silica-based hybrid organic-inorganic nanocomposite for the removal of lead(ii) and nickel(ii) ions from aqueous solutions
publisher Elsevier
publishDate 2019
url http://eprints.um.edu.my/24357/
https://doi.org/10.1016/j.matchemphys.2019.01.002
_version_ 1669007994570932224
score 13.211869

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