Siti Kartini Enche Ab Rahim
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Preferred name
Siti Kartini Enche Ab Rahim
Official Name
Siti Kartini, Enche Ab Rahim
Alternative Name
Rahim, S. K.Enche Ab
Enche Ab Rahim, S. K.
Rahim, Siti Kartini Enche Ab
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Scopus Author ID
57115278300
Researcher ID
EJE-7983-2022

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  • Publication
    Application of the novel pH-catalytic-magnetic tri-functionalities augmented bead for removal of organic dye pollutants
    ( 2021-11-01)
    Yee L.Y.
    ;
    Ng Q.H.
    ;
    Shuit S.H.
    ;
    Siti Kartini Enche Ab Rahim
    ;
    Mohammad Nawi D.
    ;
    Low S.C.
    A tri-functionality magnetic nanoparticles (MNPs) are crucial for environmental remediation. This research focused on the synthesis of pH-catalytic-magnetic polymer beads for dye removal by using phase inversion technique. In 15 wt% of polyethersulfone (PES) polymer possessed the highest porosity (80%) was used in the synthesis of MNPs-PES beads. The methylene blue (MB) removal efficiency of MNPs-PES beads and PES beads was 72.94% and 62.67%, respectively. Similarly, the removal efficiency of methyl orange (MO) dye is higher for MNPs-PES beads (38.56%) compared to PES beads (34.16%). Besides, the removal efficiency for MB dye by MNPs-PES beads increased from 77.59% to 96.90% when solution pH increased from 3 to 9 while removal of MO dye increased from 61.14% to 74.35% when solution pH decreased from 9 to 3. Moreover, the removal efficiency for MB dye increased from 72.94% to 93.43% when H2O2 is added. Additionally, MNPs-PES beads were recollected successfully using external magnet. These indirectly proved that the MNPs-PES beads were responsive towards the tri-functionalities of pH-catalytic-magnetic. Lastly, the adsorption of MB dye onto MNPs-PES beads were fitted well to Langmuir isotherm model and pseudo-second-order model with both correlations R2 of more than 0.98.
      14  3