Palygorskite–TiO₂ nanocatalysts for photocatalytic degradation of tebuconazole in water

Abstract

Palygorskite-TiO 2 nanoparticles are frequently used as nanocatalysts. In the present study, two different nanocatalysts were developed based on the use of different palygorskite-TiO 2 ratios: 40-60 and 10-90. The nanocomposites were investigated for the photocatalytic degradation of the common fungicide tebuconazole (TEB), under aquatic conditions. The samples were extensively characterized by X-ray powder diffraction, attenuated total reflectance-Fourier transform infrared spectroscopy, scanning electron microscopy and N 2 specific surface area (SSA) by Brunauer-Emmett-Teller (BET) analytical techniques. The TiO 2 nanoparticles were successfully dispersed on the mineral's surfaces and the photocatalytic activity reached 88.4% for the palygorskite-TiO 2 ratio of 40:60, where the dispersion was better as proved by the total pore volume and BET parameters (0.49 cm 3 /g and 258 m 2 /g compared to 0.33 cm 3 /g and 220 m 2 /g of the 10:90 ratio). The photocatalytic efficiency of the proposed materials was significantly higher than Degussa P25 (33.2%), and that makes the palygorskite-TiO 2 nanocomposites very promising for advanced application in fungicides' degradation in aquatic environments.

Facile Prepared Fe3O4 Nanoparticles as a Nano-Catalyst on photo-Fenton process to remediation of methylene blue dye from water: Characterisation and Optimization

“…On the other hand, recently promising nanomaterials such as Fe 3 O 4 , ZnO, and TiO 2 which that characterized by their high surface area, can be improved and reach efficiency on the photodegradation of organic pollutants at the laboratory scale. Also, the using Fe 3 O 4 nanoparticles and doped Fe 3 O 4 on photocatalytic degradation of carbol fuchsin dye, furacilin, and doxorubicin hydrochloride drugs (Frolova and Sukhyy 2023;Koli et al 2019;Weng et al 2018;Zhang et al 2019a), ZnO nanoparticles as nanocatalyst to remove of 2-Chlorophenol and on the degradation of lignin (Lenka and Badamali 2023;Zyoud et al 2021), TiO 2 on photocatalytic degradation of tebuconazole (TEB), Congo red, and cefotaxime (Abbood et al 2023;Gianni et al 2023;Obaiah et al 2023).…”