Noor Hasyierah Mohd Salleh
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Preferred name
Noor Hasyierah Mohd Salleh
Official Name
Noor Hasyierah, Mohd Salleh
Alternative Name
Salleh, N. H.M.
Salleh, N. H.Mohd
Mohd Salleh, N. H.
Mohd Salleh, Noor Hasyierah
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Scopus Author ID
41762655600

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  • Publication
    Optimization of microwave sol–gel synthesis of N-Ce-AC/TiO₂ for adsorption/photodegradation of tetracycline
    (Elsevier, 2023)
    Nur Athirah Awatif Abdul Rahman
    ;
    Azduwin Khasri
    ;
    Sabah Ansar
    ;
    Noor Hasyierah Mohd Salleh
    ;
    Mohd Ridzuan Mohd Jamir
    ;
    Raj Boopathy
    ;
    Achmad Syafiuddin
    Nitrogen (N) and cerium (Ce) co-doped titanium dioxide (TiO₂) supported activated carbon (AC) (N-Ce-AC/TiO₂) were synthesized to remove antibiotic tetracycline from aqueous solution via adsorption and photodegradation. The sol–gel technique, aided by microwave radiation, was used to synthesize N-Ce-AC/TiO₂. Central composite design under response surface methodology was used to optimize the variables comprising urea (N source) (A: 0.02–0.20 g), cerium(III) nitrate hexahydrate (Ce source) (B: 0.02–0.20 g), activated carbon (C: 0.10–0.50 g), and microwave power (D: 600–800 W), where the degradation of tetracycline was the response. Characterization of the produced catalyst was carried out by means of X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and the Brunauer–Emmett–Teller method for determining surface-texture parameters. N-Ce-AC/TiO₂ prepared with 0.50 g activated carbon, doped with 0.02 g urea and 0.20 g cerium, and activated at microwave power 600 W for 15 min exhibited 91.08% tetracycline removal when subjected to 7 W of UV irradiation, according to the results of optimal variable preparation.