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  5. Facial synthesis of colloidal stable magnetic nanoparticles coated with high hydrophilic negative charged poly(4-styrenesulfonic acid co-maleic acid) sodium for water remediation
 
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Facial synthesis of colloidal stable magnetic nanoparticles coated with high hydrophilic negative charged poly(4-styrenesulfonic acid co-maleic acid) sodium for water remediation

Journal
Polymers for Advanced Technologies
ISSN
10427147
Date Issued
2023-04-01
Author(s)
Lim C.C.
Ng Qi Hwa
Universiti Malaysia Perlis
Hoo Peng Yong
Universiti Malaysia Perlis
Siti Kartini Enche Ab Rahim
Universiti Malaysia Perlis
Mohd Riduan Jamalludin
Universiti Malaysia Perlis
Nasib A.M.
Wicaksono S.T.
Pramata A.D.
Zullaikah S.
DOI
10.1002/pat.5974
Abstract
The enhancement of the colloidal stability of magnetite nanoparticles (MNPs) for environmental-related fields has greatly attracted researchers' attention. This study used a high hydrophilic negatively charged polyelectrolyte, poly(4-styrenesulfonic acid co-maleic acid) sodium (PSAAS), to enhance the colloidal stability of MNPs. Coating of the naked MNPs with PSAAS polyelectrolyte is a simple and rapid method to obtain colloidally stable MNPs while sustaining the chemical reactivity of MNPs in water purification. The prepared PSAAS-coated MNPs were characterized by scanning electron microscope, energy dispersive X-ray, Fourier transform infrared, zeta potential analysis, transmission electron microscope and X-ray diffraction. Moreover, the colloidal stability and adsorption performance tests of these naked MNPs and PSAAS-coated MNPs (with different concentrations of PSAAS coated) were investigated and compared. PSAAS-coated MNPs with 0.001 g/ml PSAAS coating possessed the best colloidal stability and the highest methylene blue (MB) dye removal efficiency (94.53 ± 0.69%). The adsorption isotherm and kinetic studies for the adsorption of MB onto PSAAS-coated MNPs were well-described by the Langmuir model and pseudo-second-order kinetic model. These magnetic adsorbents, with high separation efficiency, simple and low production cost and recyclable property, are promising as practicable adsorbents in water treatment.
Funding(s)
Universiti Malaysia Perlis
Subjects
  • adsorption | iron oxi...

File(s)
Research repository notification.pdf (4.4 MB)
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