Cobalt titanate nanocatalyst for enhanced photodegradation of atrazine: kinetics, degradation efficiency, and mechanistic analysis

BMC Chemistry, Год журнала: 2025, Номер 19(1)

Опубликована: Фев. 7, 2025

In this study, cobalt titanate nanoparticles (CoTiO₃ NPs) were synthesized and applied as a photocatalyst to degrade atrazine. Scanning electron microscopic (SEM) analysis showed irregularly shaped particles prone agglomeration, while X-ray diffraction (XRD) confirmed the formation of rhombohedral CoTiO₃ phase with crystallite size 3.76 nm. Raman spectroscopic vibrations typical for Ti–O Co–O bonds well-defined structure. Thermogravimetric (TGA) that remained stable up 800 °C. The photocatalytic activity NPs was tested under sunlight irradiation results obtained demonstrated excellent efficiency compared photolysis reaction. influenced by concentration (20–50 ppm), catalyst dosage (0.5–2.0 mg/L), pH (4.21–10.22), time (0–120 min). exhibited surface area 32.5 m2/g (DFT) 828.03 m⁻1 (BET), pore volume 0.03925 m3/g, bandgap energy 2.66 eV. Kinetic studies degradation followed Langmuir–Hinshelwood model, reaction being rate-determining step. Adsorption rate constants found range from 0.03828 0.166528 min⁻1, ranged 0.373692 0.977135 min⁻1. also recyclability, maintaining high after five cycles. Scavenger experiments hydroxyl radicals (HO•) are responsible atrazine GCMS complete mineralization carbon dioxide (CO₂) water (H₂O) final products.

Язык: Английский

Sunlight activation of persulfate by g-C3N4@FexTi3-xO4 photocatalyst for atrazine degradation

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 132694 - 132694

Опубликована: Март 1, 2025

Язык: Английский

Does the atrazine increase animal mortality: Unraveling through a meta-analytic study

The Science of The Total Environment, Год журнала: 2024, Номер 951, С. 175553 - 175553

Опубликована: Авг. 15, 2024

Язык: Английский