Sonophotocatalytic activities of FeCuMg and CrCuMg LDHs: Influencing factors, antibacterial effects, and intermediate determination

Journal of Hazardous Materials
Tannaz Sadeghi RadFatemeh Vafaei

Abstract

Herein, FeCuMg and CrCuMg layered double hydroxides (LDHs) were synthesized and their sonophotocatalytic activities toward Acid blue 113 (AB113) were compared. Sonolysis alone (only ultrasound) led to the decolorization efficiency of 13.0 %. A similar result was obtained in the case of the utilization of photolysis alone using a 10-W LED lamp (13.5 %). The adsorption process of AB113 onto both compounds was not efficient to significantly remove the target contaminant. The bandgap energy of 2.54 eV and 2.41 eV was calculated for FeCuMg and CrCuMg LDHs, respectively, indicating relatively higher photocatalytic activity of Cr-incorporated LDH than FeCuMg LDH. The sonophotocatalysis of AB113 (50 mg L-1) over CrCuMg LDH (81.1 %) was more efficient than that of FeCuMg LDH (57.3 %) within the reaction time of 60 min. Intermediate byproducts of the sonophotocatalytic decomposition of organic dye over the as-synthesized tri-metal layered sonophotocatalysts were also identified. Furthermore, the antibacterial activity of both LDHs was evaluated by the CFU technique and the MBC and MIC values were determined. The antibacterial assessment confirmed the higher antibacterial activity of CrCuMg LDH than that of FeCuMg LDH against Staphylococc...Continue Reading

Citations

Oct 8, 2020·Environmental Science and Pollution Research International·Mohammad HassanpourHossein Safardoust-Hojaghan
Nov 10, 2020·Chemosphere·Samira Arefi-OskouiIdil Arslan-Alaton
Feb 7, 2021·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Huiwen ZhangJuan Wang
Jan 17, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Olga Koba-UcunYasin Orooji
Jan 6, 2021·Ecotoxicology and Environmental Safety·Roshanak TarrahiAlireza Khataee

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