Exploring the Photocatalytic Activity of Magnesium and Copper-Doped Titanium Dioxide Nano Catalyst through Synthesis and Characterization

سال انتشار: 1403
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 31

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شناسه ملی سند علمی:

JR_AJCS-7-4_002

تاریخ نمایه سازی: 29 اردیبهشت 1403

چکیده مقاله:

Pristine TiO۲ nanoparticles, doped with single elements Cu and Mg, were synthesized utilizing the sol-gel process with titanium tetraisopropoxide as the Ti basis. The physicochemical characterizations of the nanoparticles were evaluated using X-ray diffraction (XRD), transmission electron microscopy (TEM), diffuse reflection spectroscopy (DRS), and scanning electron microscopy (SEM). The XRD shapes of the samples did not display isolated peaks of diffraction for Cu or Mg, demonstrating that the metals were well spread on the TiO۲ surface. The DRS analysis uncovered an intriguing finding- the co-doped photocatalyst exhibited a significantly narrower band in comparison to both un-doped and monometallic TiO۲. This intriguing alteration in the absorption band near visible light holds great potential. To further explore its implications, a comprehensive comparison was conducted to evaluate the photocatalytic activity of nanoparticles in degrading orange G solution under visible light. TiO۲ nanoparticles doped with copper and magnesium exhibited significantly higher photocatalytic activity than to Cu/TiO۲, Mg/TiO۲, and pure TiO۲ nanoparticles. The optimal doping levels of copper and magnesium for the synthesis of Cu and Mg/TiO۲ nanoparticles were determined to be ۱ and ۰.۲۵ mol%, respectively.

نویسندگان

Farzad Arjomandi Rad

Department of Chemistry, Bonab Branch, Islamic Azad University, Bonab, Iran

Jila Talat Mehrabad

Department of Chemistry, Bonab Branch, Islamic Azad University, Bonab, Iran

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