Synthesis of N-Doped TiO2 Nanoparticles with Enhanced Photocatalytic Activity for 2,4-Dichlorophenol Degradation and H2 Production
Source of Publication
Journal of Environmental Chemical Engineering
Nitrogen-doped titanium dioxide (N-TiO2) nanoparticles were prepared using a modified sol-gel method. The as-prepared nanoparticles were characterized by state-of-the-art techniques for their optical, structural and morphological properties. The crystallite size, surface area and bandgap energy of reference TiO2 and N-TiO2 nanoparticles were found to be 16.1 and 10.9nm, 83.6 and 131.8 m2 g−1 and 3.23 and 2.89eV, respectively. The photocatalytic activities, in terms of 2,4-dichlorophenol (2,4-DCP) degradation, of reference TiO2 and N-TiO2 were found to be 46.9 and 65.4% at 120min of treatments under UV light irradiation and 21.5 and 77.6% at 240min of treatment under visible light irradiation, employing 153.4µM 2,4-DCP, 1gL−1 photocatalyst dosage, and pH 5.6. Interestingly, considerable H2 production rate (i.e., 386 μmol h−1 g−1) was observed for visible/N-TiO2 system in presence of 0.2wt % Pt. The study revealed that visible/N-TiO2 photocatalytic system can be used as an economically viable technology for environmental sustainability.
Nitrogen doped TiO2, chlorinated organic compounds, Environmental sustainability, Water treatment, Solar H2 production, circular economy
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Khan, Javed Ali; Sayed, Murtaza; Shah, Noor S.; Khan, Sanaullah; Khan, Ashfaq Ahmad; Sultan, Muhammad; Tighezza, Ammar M.; Iqbal, Jibran; and Boczkaj, Grzegorz, "Synthesis of N-Doped TiO2 Nanoparticles with Enhanced Photocatalytic Activity for 2,4-Dichlorophenol Degradation and H2 Production" (2023). All Works. 6125.
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Hybrid: This publication is openly available in a subscription-based journal/series