Easy synthesis, structural characterization and application of calcium tungstate nanostructures to degradation of Rhodamine B
محل انتشار: دهمین همایش بین المللی علوم و فناوری نانو
سال انتشار: 1403
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 198
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شناسه ملی سند علمی:
ICNN10_202
تاریخ نمایه سازی: 25 اردیبهشت 1404
چکیده مقاله:
Calcium tungstate (CaWO۴) nanostructures have been synthesized via the co-precipitation process using the precursor Ca(Sal)۲ (Sal = salicylidene) and sodium tungstate dehydrate (Na۲WO۴.۲H۲O). The characterization of the as-synthesized nanostructures was carried out using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), photoluminescence spectroscopy (PL), energy dispersive X-ray microanalysis (EDS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). To attain the best conditions, the effects of various parameters such as solvent, temperature and surfactant were investigated. A general, facile and efficient approach was confirmed in this research to control the morphology and composition of scheelite-type CaWO۴ nanostructures in methanol and aqueous solutions. To evaluate the catalytic activity of CaWO۴ as nanophotocatalyst, the adsorption and degradation of Rhodamine B (RhB) dye on CaWO۴ nanostructures were investigated, and ۹۰% of the organic contaminant (Rhodamine B) was decolorized in ۶۰ minutes.
کلیدواژه ها:
نویسندگان
Hojatollah Hossainian
Applied Chemistry Department, Faculty of Gas and Petroleum, Yasouj University, P. O. Box ۷۵۸۱۳-۵۶۰۰۱, Gachsaran, Iran.
Masoud Salavati-Niasari
Institute of Nano Science and Nano Technology, University of Kashan, P. O. Box ۸۷۳۱۷-۵۱۱۶۷, Kashan, Iran.