| Autor: |
Rahman, Nur Athirah Awatif Abdul, Khasri, Azduwin, Salleh, Noor Hasyierah Mohd, Jamir, Mohd Ridzuan Mohd, Ansar, Sabah, Boopathy, Raj, Syafiuddin, Achmad |
| Zdroj: |
Desalination & Water Treatment; August 2023, Vol. 303 Issue: 1 p151-159, 9p |
| Abstrakt: |
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/TiO2prepared 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. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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