Characterization and photocatalytic activity of different molar ratios of TiO2thin films prepared by Sol-Gel process Abdallah Attaf, Radhia Messemeche, Hanane Saidi, Benkhetta Youcef, Mohamed Salah Aida, et al. Main Group Chemistry, 2023 Photocatalytic application has been of large interest due to its new technology for organic pollution. Among the photocatalyst, titanium dioxide thin film is known as a photocatalyst for the elimination of organic pollutants. In this research, the structural and optical properties of TiO2 thin films prepared on glass substrates were studied, using a sol-gel (spin coating) technique. TiO2 thin films were deposited with molar ratio y between [TTIP] and [AcAc] concentration, which varied from 0.5 to 2. Photocatalytic properties of TiO2 thin films are studied by using sunlight and photodegradation of methylene blue as a water pollutant evaluated until the photocatalytic process enhances with the molar ratio. Absorbance spectra were measured using a spectrophotometer. Test results showed that the photocatalytic sunlight /TiO2 thin film is a promising method for treating wastewater. The quantity of acetylacetone in the precursor solution had no significant effect on the optical and structural properties of the TiO2 thin films. Films consisted of the anatase phase, with a band gap in the range of 3.38–3.51 eV and thickness in the range of 534–618 nm. However, the molar ratio effect on photocatalytic preperties, the best photodegradation rate reaches to 94% in y = 0.66 at t = 180 min.
Film thickness effect on structural, optical and electrical properties of indium oxide (In2O3) thin films grown via sol-gel method R. Nouadji, A. Attaf, A. Derbali, A. Bouhdjer, H. Saidi, et al. Main Group Chemistry, 2021 In this work, we investigated the effect of the thickness on structural, morphological, optical, and electrical properties of In2O3 thin films synthesized via by sol–gel spin coating technique. The prepared samples were characterized by various techniques including X-ray diffraction (XRD), scanning electron microscope (SEM), energy-dispersive X-ray (EDX) spectra, UV-Vis-NIR spectrophotometer as well as the electrical measurements via the four-probe technique. The XRD analysis reveals that the films have a cubic crystalline structure, with (222) preferential orientation. The crystallite size values of the films were varied from 14 to 27 nm. The (SEM) images indicated that the homogenous and smooth surface with better adherent to the substrate surface. The EDX spectrum reveals the presence of In and O element necessary for In2O3 films for film formation. Excess of oxygen is observed due to the substrate contribution. The transmittance results exhibit that the films are highly transparent, more than 75% in the visible range from 400 nm to 800 nm is measured. The estimated band gap energy is found to increase with increasing film thickness (3.37–3.7 eV). The electrical resistivity of the In2O3 thin films substantially decreases with the increasing film thickness from 1.48×10-4 to 1.3×10-3 Ω.cm.
Sol–gel synthesis and spin-coating Nb-doped TiO 2 anatase thin films NE Djehiche, H Saidi, A Derbali, A Attaf, O Ben Khetta, MS Aida, ... Journal of Sol-Gel Science and Technology 117 (3), 79 , 2026 2026
Influence of precursor nature on the structural, optical, and electrical properties of Indium Oxide (In 2 O 3 ) thin films synthesis by ultrasonic spray technique R Bourhefir, H Saidi, A Attaf, O Ben Khetta, M Boubeche, A Derbali, ... Main Group Chemistry 25 (1), 46-61 , 2026 2026 Citations: 3
Influence of precursor nature on the structural, optical, and electrical properties of Indium Oxide (In 2 O 3 ) thin films synthesis by ultrasonic spray technique R Bourhefir, H Saidi, A Attaf, O Ben Khetta, M Boubeche, A Derbali, ... MAIN GROUP CHEMISTRY , 2025 2025 Citations: 1
Tailoring the Structural, Optical, and Photoluminescence Properties of Ultrasonically Sprayed Pure Rutile (TiO2) Thin Films for Photocatalysis Applications O Ben Khetta, A Attaf, H Saidi, MS Aida, Y Benkhetta, M Boubeche, ... Ceramics International , 2025 2025 Citations: 4
Study of Al dopant effect on the physical properties and the photoluminescence of spin coated anatase TiO2: Al3+ thin films S Chala, H Saidi, A Derbali, A Attaf, MS Aida, A Guettaf, R Messemeche, ... Journal of Sol-Gel Science and Technology, 1-12 , 2025 2025 Citations: 4
Study of dopant concentration effect on the physical properties of spin coated anatase TiO 2: Al 3+ thin films S Chala, H Saidi, A Derbali, A Attaf, MS Aida, A Guettaf, R Messemeche, ... 2024
Enhanced photocatalytic degradation of Rhodamine B by (Mg/Ta): doped Bi 4 Ti 3 O 12 catalyst under sunlight irradiation L Smaili, H Menasra, C Benbrika, O Ben Khetta, Z Necira, K Bounab Reaction Kinetics, Mechanisms and Catalysis 136 (6), 3257-3269 , 2023 2023 Citations: 15
Characterization and photocatalytic activity of different molar ratios of TiO 2 thin films prepared by Sol-Gel process A Attaf, R Messemeche, H Saidi, B Youcef, MS Aida, O Ben khetta Main Group Chemistry 22 (1), 55- 65 , 2023 2023 Citations: 7
Precursor concentration effect on the physical properties of transparent titania (Anatase-TiO2) thin films grown by ultrasonic spray process for optoelectronics application O Ben Khetta, A Attaf, A Derbali, H Saidi, A Bouhdjer, MS Aida, ... Optical Materials 132, 112790 , 2022 2022 Citations: 12
Photocatalytic mechanisms reactions of gallium doped TiO 2 thin films synthesized by sol gel (spin coating) in the degradation of methylene blue (MB) dye under … R Messemeche, Y Benkhetta, A Attaf, H Saidi, MS Aida, O Ben Khetta Reaction Kinetics, Mechanisms and Catalysis 135 (5), 2735-2747 , 2022 2022 Citations: 9
Film thickness effect on structural, optical and electrical properties of indium oxide (In 2 O 3 ) thin films grown via sol-gel method R Nouadji, A Attaf, A Derbali, A Bouhdjer, H Saidi, MS Aida, F Zeribi, ... Main Group Chemistry 20 (4), 513-527 , 2021 2021 Citations: 17
Effects of lattice mismatches in In2O3/substrate structures on the structural, morphological and electrical properties of In2O3 films A Bouhdjer, H Saidi, A Attaf, A Yahia, MS Aida, O Benkhetta, L Bouhdjer Surfaces and Interfaces 20, 100579 , 2020 2020 Citations: 10
Effet de la concentration de la solution sur les propriétés des couches minces de dioxyde de titane déposées par spray pyrolyse ultrasonique O Benkhetta Mémoire de master en physique, Université mohamed khider de biskra , 2019 2019 Citations: 7
MOST CITED SCHOLAR PUBLICATIONS
Film thickness effect on structural, optical and electrical properties of indium oxide (In 2 O 3 ) thin films grown via sol-gel method R Nouadji, A Attaf, A Derbali, A Bouhdjer, H Saidi, MS Aida, F Zeribi, ... Main Group Chemistry 20 (4), 513-527 , 2021 2021 Citations: 17
Enhanced photocatalytic degradation of Rhodamine B by (Mg/Ta): doped Bi 4 Ti 3 O 12 catalyst under sunlight irradiation L Smaili, H Menasra, C Benbrika, O Ben Khetta, Z Necira, K Bounab Reaction Kinetics, Mechanisms and Catalysis 136 (6), 3257-3269 , 2023 2023 Citations: 15
Precursor concentration effect on the physical properties of transparent titania (Anatase-TiO2) thin films grown by ultrasonic spray process for optoelectronics application O Ben Khetta, A Attaf, A Derbali, H Saidi, A Bouhdjer, MS Aida, ... Optical Materials 132, 112790 , 2022 2022 Citations: 12
Effects of lattice mismatches in In2O3/substrate structures on the structural, morphological and electrical properties of In2O3 films A Bouhdjer, H Saidi, A Attaf, A Yahia, MS Aida, O Benkhetta, L Bouhdjer Surfaces and Interfaces 20, 100579 , 2020 2020 Citations: 10
Photocatalytic mechanisms reactions of gallium doped TiO 2 thin films synthesized by sol gel (spin coating) in the degradation of methylene blue (MB) dye under … R Messemeche, Y Benkhetta, A Attaf, H Saidi, MS Aida, O Ben Khetta Reaction Kinetics, Mechanisms and Catalysis 135 (5), 2735-2747 , 2022 2022 Citations: 9
Characterization and photocatalytic activity of different molar ratios of TiO 2 thin films prepared by Sol-Gel process A Attaf, R Messemeche, H Saidi, B Youcef, MS Aida, O Ben khetta Main Group Chemistry 22 (1), 55- 65 , 2023 2023 Citations: 7
Effet de la concentration de la solution sur les propriétés des couches minces de dioxyde de titane déposées par spray pyrolyse ultrasonique O Benkhetta Mémoire de master en physique, Université mohamed khider de biskra , 2019 2019 Citations: 7
Tailoring the Structural, Optical, and Photoluminescence Properties of Ultrasonically Sprayed Pure Rutile (TiO2) Thin Films for Photocatalysis Applications O Ben Khetta, A Attaf, H Saidi, MS Aida, Y Benkhetta, M Boubeche, ... Ceramics International , 2025 2025 Citations: 4
Study of Al dopant effect on the physical properties and the photoluminescence of spin coated anatase TiO2: Al3+ thin films S Chala, H Saidi, A Derbali, A Attaf, MS Aida, A Guettaf, R Messemeche, ... Journal of Sol-Gel Science and Technology, 1-12 , 2025 2025 Citations: 4
Influence of precursor nature on the structural, optical, and electrical properties of Indium Oxide (In 2 O 3 ) thin films synthesis by ultrasonic spray technique R Bourhefir, H Saidi, A Attaf, O Ben Khetta, M Boubeche, A Derbali, ... Main Group Chemistry 25 (1), 46-61 , 2026 2026 Citations: 3
Influence of precursor nature on the structural, optical, and electrical properties of Indium Oxide (In 2 O 3 ) thin films synthesis by ultrasonic spray technique R Bourhefir, H Saidi, A Attaf, O Ben Khetta, M Boubeche, A Derbali, ... MAIN GROUP CHEMISTRY , 2025 2025 Citations: 1
Sol–gel synthesis and spin-coating Nb-doped TiO 2 anatase thin films NE Djehiche, H Saidi, A Derbali, A Attaf, O Ben Khetta, MS Aida, ... Journal of Sol-Gel Science and Technology 117 (3), 79 , 2026 2026
Study of dopant concentration effect on the physical properties of spin coated anatase TiO 2: Al 3+ thin films S Chala, H Saidi, A Derbali, A Attaf, MS Aida, A Guettaf, R Messemeche, ... 2024
