Photocatalytic activity of Ag/Al₂O₃-Gd₂O₃ photocatalysts prepared by the sol-gel method in the degradation of 4-chlorophenol.

ABSTRACT: The photocatalytic activity in the degradation of 4-chlorophenol (4-ClPh) in aqueous medium (80 ppm) using 2.0 wt% Ag/Al₂O₃-Gd₂O₃ (Ag/Al-Gd-x; where x = 2.0, 5.0, 15.0, 25.0 and 50.0 wt% of Gd₂O₃) photocatalysts prepared by the sol-gel method was studied under UV light irradiation. The photocatalysts were characterized by N₂ physisorption, X-ray diffraction, SEM, HRTEM, UV-Vis, XPS, FTIR and fluorescence spectroscopy. About 67.0% of 4-ClPh was photoconverted after 4 h of UV light irradiation using Ag/γ--Al₂O₃. When Ag/Al-Gd-x photocatalysts were tested, the 4-ClPh photoconversion was improved and more than 90.0% of 4-ClPh was photoconverted after 3 h of UV light irradiati

SUBMITTER: Barrera A 

PROVIDER: S-EPMC9077698 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature