Ni0.5Zno.5Cr2O4 Nanoparticles: Synthesis, Caracterization, and Photocatalyti Degradation of Eosin-Y under Visible Light
محل انتشار: بیست و یکمین سمینار شیمی معدنی انجمن شیمی ایران
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 259
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شناسه ملی سند علمی:
IICC21_283
تاریخ نمایه سازی: 5 آذر 1398
چکیده مقاله:
Chromites as a family of normal type spinel structure have many applications in the fields rangind from applied physics and sciences to geophysics. Among the transition metal chromites with spinel-type structures, NiCr2O4 and ZnCr2O4 used as a catalyst, gas sensors, pigment, magnetic material and semiconductor [1]. The most widely used method for the synthesis of Nio.Zno.Cr204 (NZC) nanoparticles involves hydrothermal, coprecipitation and sol-gel combustion. Eosin Y (EY) is a stable dye and hase been used as a catalyst for photocatalyst degradation of some compounds. Wastewater containing EY causes environmental problems due to its stability and dark color. EY, was potentially hazardous to human health [2]. The typical preparation of NZC nanoparticles, 1.1g of NiCl2.6H20 and 0.3g of Zn(CH3COO)2.2H20 were dissolved in 10 ml of distilled water then the above solution added to 2.6g of CrCl3.6H 0 that was dissolved in distilled water. NaOH was added to solution and the pH was raised above 10. The obtained mixture was then heated at 110 °C for 3h in the oil bath and the resulting powder was calcined at 600 °C for 4 hours. Detailed characterization of the as-prepared nanoparticles was carried out by FT-IR, Xray diffraction and EDX. EDX analysis have shown among the samples for synthetic method and X-ray analysis contains the main assignments which identify the formation of NZC. Furthermore, the photocatalytic activity of NZC nanoparticles was confirmed by degradation of anionic dye Eosin-Y under vis light irradiation. The obtained NZC nanoparticles exhibit about 30% of degradation of dye.
کلیدواژه ها:
نویسندگان
Reyhaneh Darvishi Harzevili
Department of Chemistry, Faculty of Science, University of Guilan, Guilan, Iran
Hadi Fallah Moafi
Department of Chemistry, Faculty of Science, University of Guilan, Guilan, Iran
Leila Shirmohammadzadeh
Department of Chemistry, Faculty of Science, University of Guilan, Guilan, Iran