Synthesis,characterization and optical studies of highly luminescent ZnS nanoparticles associated with hypromellose matrix as a green and novel stabilizer |
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| Authors: | Ashish Tiwari S A Khan R S Kher S J Dhoble |
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| Institution: | 1. Department of Chemistry, Government Lahiri College, Chirimiri, India;2. Government College Seepat, Bilaspur, India;3. Department of Physics, Government E. R. R. PG Science College, Bilaspur, India;4. Department of Physics, RTM Nagpur University, Nagpur, India |
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| Abstract: | ZnS nanoparticles stabilized by a carbohydrate‐based matrix, hypromellose (hydroxypropyl methylcellulose) were prepared via a wet chemical method. The nanocomposite was characterized by X‐ray diffraction, transmission electon microscopy and Fourier transform infrared spectroscopy. X‐Ray diffraction patterns revealed a zinc blende structure. Thermogravimetric analysis suggested that polymer attached to the surface decomposes at 700 °C. Absorption measurements were carried out and calculation of the diameter polydispersity index (DPI) suggests the formation of monodisperse nanoparticles. The optical properties of the as‐prepared samples were studied by UV/vis spectroscopy and steady‐state photoluminescence (PL) spectroscopy. The PL studies indicate the applicability of these nanoparticles as biocompatible sensors or luminescence markers in future. Copyright © 2013 John Wiley & Sons, Ltd. |
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| Keywords: | ZnS‐hypomellose nanoparticles optical absorption thermogavimetric analysis diameter polydispersity index (DPI) photoluminescence (PL) |
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