Iron Promoted TiO2-Activated Carbon Nanocomposites for Photocatalytic Degradation of Congo Red in Water DOI Open Access
Daniela Negoescu, Veronica Brătan, Mihaela Gherendi

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(12), P. 844 - 844

Published: Nov. 22, 2024

Nanocomposites containingTiO2 and activated carbon were obtained by the sol-gel method in presence of Brij 58 surfactant. The sample with a higher surface area (185.6 m2/g) was promoted Fe impregnating it aqueous solution Fe(NO3)3. iron loadings, measured using X-ray fluorescence, 0.83%, 3.30% 7.17%. TiO2 anatase identified all samples diffraction Raman spectroscopy, but oxides could not be detected. However, infrared spectroscopy indicated existence Fe-O Fe-O-Ti bonds. photoelectron revealed Fe2+ for lower content mixture Fe3+ 7.17% Fe. UV-Vis photoluminescence showed alongside TiO2. This combination led to new properties due generation intermediate energy levels defects, contributing an enhancement photocatalytic performance. highest photodegradation efficiency Congo red (84.46%) under visible light irradiation acidic conditions. synergistic contribution dye adsorption demonstrated, taking into account ZPC values nanocomposites. Kinetic studies completed reaction mechanisms based on results scavengers.

Language: Английский

Novel ACr2O4 (A = Mg, Cu, Ni)/MIL-101(Cr) photocatalysts: Synthesis, characterization, performance prediction and applications for the photo–degradation of tetracycline hydrochloride DOI
Jinjin Ding, Shifa Wang, Yuanyuan Zhang

et al.

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 116173 - 116173

Published: Nov. 1, 2024

Language: Английский

Citations

4
Immobilization of Nickel Oxide Nanoparticles on Cotton Fiber Under Gamma Radiation and Its Catalytic Activity DOI Open Access
Wael H. Eisa,

A. M. Abou Zeid,

Omayma Ghazy

et al.

Microscopy Research and Technique, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 11, 2025

ABSTRACT Nickel ions were reduced on the surface of cotton fibers under effect gamma radiation. The NiO nanoparticles grew as semispherical aggregates along with average crystallite size 32 nm calculated from x‐ray diffraction results. FTIR data showed presence a new IR peak at 613 cm −1 (assigned to NiO stretching vibration) confirming successful loading into matrix. adhered through complexation hydroxyl and carbonyl groups. NiO@cotton nanocomposite high performance in catalytic degradation both 4‐nitrophenol bromophenol blue. rate constant was 8.24 × 10 −3 s pH = 10. resultant heterogeneous catalyst is green, cheap, separable/recyclable, has considerable activity.

Language: Английский

Citations

0
Deep Insights into the Integration of Artificial Neural Networks (ANNs) for Predicting the Photocatalytic Activities of Metal-Based Catalysts in Water Pollutant Reduction DOI
Mohd Adnan, Mohd Fadhil Majnis, Wan Nazirah Wan Md Adnan

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116350 - 116350

Published: March 1, 2025

Language: Английский

Citations

0
Iron Promoted TiO2-Activated Carbon Nanocomposites for Photocatalytic Degradation of Congo Red in Water DOI Open Access
Daniela Negoescu, Veronica Brătan, Mihaela Gherendi

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(12), P. 844 - 844

Published: Nov. 22, 2024

Nanocomposites containingTiO2 and activated carbon were obtained by the sol-gel method in presence of Brij 58 surfactant. The sample with a higher surface area (185.6 m2/g) was promoted Fe impregnating it aqueous solution Fe(NO3)3. iron loadings, measured using X-ray fluorescence, 0.83%, 3.30% 7.17%. TiO2 anatase identified all samples diffraction Raman spectroscopy, but oxides could not be detected. However, infrared spectroscopy indicated existence Fe-O Fe-O-Ti bonds. photoelectron revealed Fe2+ for lower content mixture Fe3+ 7.17% Fe. UV-Vis photoluminescence showed alongside TiO2. This combination led to new properties due generation intermediate energy levels defects, contributing an enhancement photocatalytic performance. highest photodegradation efficiency Congo red (84.46%) under visible light irradiation acidic conditions. synergistic contribution dye adsorption demonstrated, taking into account ZPC values nanocomposites. Kinetic studies completed reaction mechanisms based on results scavengers.

Language: Английский

Citations

0