1. Enhanced Photocatalytic Activity of TiO 2 Modified with GaI toward Environmental Application.
- Author
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Jadhav S, Navarro-Mendoza R, Lozano-Sotomayor P, Galindo-Esquivel IR, Serrano O, and Peralta-Hernández JM
- Abstract
Gallium (Ga) ion-doped TiO
2 (Ga-TiO2 ) nanocomposite with small particle size (9-10 nm) and high surface area (104 m2 /g) has been easily synthesized via sol-gel method at low temperature by using low-valent GaI as a doping precursor. The structural and morphological characterization of Ga-TiO2 was carried out with standard analytical and spectroscopic techniques. Ga doping into the TiO2 matrix inhibited a phase transformation from anatase to rutile (photocatalytically inactive) form, even at a higher temperature of 750 °C. Finally, Ga-TiO2 nanocomposite showed high photocatalytic activity and exhibited 97% degradation of acid violet 63 dye within 60 min. The dye degradation rate constant was calculated as 1.6 × 10-1 and 1.4 × 10-1 min-1 under UV and white light irradiation, respectively, which is higher, as compared to the previously reported Ga-TiO2 composites to date. more...- Published
- 2020
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