Preparation of cadmium telluride nanoparticles from aqueous solutions by sonochemical method期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Preparation of cadmium telluride nanoparticles from aqueous solutions by sonochemical method

Authors:	Irena Ban Matja? Kristl Valerija Dan?Anita Dan? Miha Drofenik

Affiliation:	^a Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia ^b Center of Excellence NAMASTE, Jamova 39, 1000 Ljubljana, Slovenia ^c Elementary School, Prosenjakovci-KÁI Pártosfalva, Prosenjakovci 97c, 9207 Prosenjakovci, Slovenia ^d Elementary School, Razkri?je, Šafarsko 24, 9240 Ljutomer, Slovenia ^e Institute Jo?ef Stefan, Jamova 39, 1000 Ljubljana, Slovenia

Abstract:	Cadmium telluride nanoparticles with sizes between 8 and 13 nm have been synthesized via a sonochemical route using cadmium sulfate hydrate (CdSO₄·8/3H₂O), cadmium chloride (CdCl₂) and elemental Te as precursors and aqueous solutions of NaOH and EDTA as solvents. The qualitative characterization and estimation of nanoparticle size were carried out by using X-ray powder diffraction (XRD). The morphology of nanoparticles was analyzed by transmission electron microscopy (TEM). Changes of physical and chemical properties of the prepared CdTe nanoparticles at increased temperature were studied by thermal analysis (TGA, SDTA). A probable mechanism for the sonochemical formation of CdTe is proposed.

Keywords:	Sonochemistry Nanoparticles Cadmium telluride
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