Author/Authors :
Alemi، Abdolali نويسنده Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran , , Khademinia، Shahin نويسنده Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran , , Woo Joo، Sang نويسنده School of Mechanical Engineerng WCU nano research center,Yeungnam University,Gyongsan 712-749 , South KOREA , , Dolatyari، Mahboubeh نويسنده Laboratory of Nano Photonics & Nano Crystals, School of Engineering-Emerging Technologies, University of Tabriz, Tabriz, Iran , , Moradi ، Hossein نويسنده Faculty of chemistry, Islamic Azad University, Ardabil Branch, Ardabil, Iran ,
Abstract :
در اين مقاله ريزساختارهاي CdO دوپ شده با Bi3+ با كريستاليته ي بالا بوسيله ي كلسينه كردن پيش ماده هاي حاصل از روش سل-ژل سنتز شدند. واكنشگرهاي كادميوم نيترات (Cd(NO3)2.4H2O)، بيسموت نيترات (Bi(NO3)3.5H2O) واتيلن گليكول در دماي ?C80 و به مدت 2 ساعت واكنش مي دهند. ژل به دست آمده در دماي ?C900 و به مدت 12 ساعت تحت حرارت قرار مي گيرد. با حرارت دادن بخش آلي ژل حذف مي شود و محصول به دست مي آيد. محصول به دست آمده توسط ميكروسكوپ الكتروني روبشي (SEM) ، پراش اشعه X (XRD) و طيف سنجي مادون قرمز(IR) مورد بررسي قرار گرفت.
Abstract :
Highly crystalline Bi
3+
-doped cadmium oxide (CdO) sub-micron
structures were synthesized by calcination the obtained precursor
from a sol-gel reaction. The reaction was carried out with cadmium
nitrate (Cd(NO3)2.4H2O), bismuth nitrate (Bi(NO3)3.5H2O) and
ethylene glycol (C2H6O2) reactants without any additives at 80°C for
2h. Resulting gel was calcined at 900 °C with increasing temperature
rate of 15°C per minute for 12 h in a furnace. As a result of heating,
the organic section of gel was removed and Bi
3+
-doped cadmium
oxide micro structure was produced. The obtained compound from
the sol-gel technique possesses a cubic crystalline structure at micro
scale. Powder x-ray diffraction (PXRD) study indicated that the
obtained Bi
3+
-doped CdO has a cubic phase. Also, SEM images
showed that the resulting material is composed of particles with the
average diameter of 1 µm. Also, UV–vis and FT-IR spectroscopies
were employed to characterize the Bi
3+
-doped CdO micro structures.
