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Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Chemistry

TÜBİTAK

Journal

2021

Photocatalysis

Articles 1 - 2 of 2

Full-Text Articles in Physical Sciences and Mathematics

Electrophoretic Deposition And Characterization Of Self-Doped Srtio$_{3}$ Thin Films, Naeimeh Sadat Peighambardoust, Umut Aydemi̇r Jan 2021

Electrophoretic Deposition And Characterization Of Self-Doped Srtio$_{3}$ Thin Films, Naeimeh Sadat Peighambardoust, Umut Aydemi̇r

Turkish Journal of Chemistry

Herein, titanium (Ti$^{3+}$) self-doped strontium titanate (SrTiO$_{3}$), so-called blue SrTiO$_{3}$, with a bandgap of 2.6 eV and favorable photocatalytic characteristics was fabricated through a facile and effective method. For electrochemical investigations, the electrophoretic deposition was applied to produce SrTiO$_{3}$ thin films on (fluorine-doped tin oxide) FTO conductive substrates. The electrophoretic voltage of 20 V and a process duration of 10 min were optimized to reach transparent and uniform coatings on FTO. The blue SrTiO$_{3}$ reveals lower resistance (charge transfer resistance of 6.38 Ω cm$^{-2}$) and higher electron mobility (current density value of 0.25 mA cm?2) compared to a pure SrTiO$_{3}$ …


N Doping Of Tio2 Nanocrystal For Efficient Photodegradation Of Organic Pollutants Underultraviolet And Visible Light Irradiation, Xiaoyou Yu, Qianrui Lv Jan 2021

N Doping Of Tio2 Nanocrystal For Efficient Photodegradation Of Organic Pollutants Underultraviolet And Visible Light Irradiation, Xiaoyou Yu, Qianrui Lv

Turkish Journal of Chemistry

To decrease the band gap of TiO2 and enhance its photocatalytic performance, in this work, N-doped nanocrystalline TiO2 is synthesized successfully through a simple sol-gel synthesis process with dicyandiamide used as N source. The N-doped TiO2 photocatalysts have been characterized in detail by means of powder X-ray diffraction, Raman spectroscopy, infrared spectroscopy, UV-vis spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscope. The photocatalytic activities of N-doped TiO2 to different organic pollutants are significantly different. Using 2 × 10-5 mol/L methylene blue as the target pollutant, N-doped TiO2 can produced approximately 100% conversion within 40 min, the photocatalytic degradation ability of …