Photo-catalytic activity of Zn_1-<it>x</it>Mn_<it>x</it>S nanocrystals synthesized by wet chemical technique

• Main Authors: Singh Karamjit, Bhatti Harbhajan, Chitkara Mansi, Sandhu Inderjeet
• Format: Article
• Language: English
• Published: SpringerOpen 2011-01-01
• Series: Nanoscale Research Letters
• Online Access: http://www.nanoscalereslett.com/content/6/1/438

<p>Abstract</p> <p>Polyvinyl pyrrolidone capped Zn_1-<it>x</it>Mn_<it>x</it>S (0 &#8804; <it>x </it>&#8804; 0.1) nanocrystals have been synthesized using wet chemical co-precipitation method. Crystallographic and morphological characterization of the synthesized materials have been done using X-ray diffraction and transmission electron microscope. Crystallographic studies show the zinc blende crystals having average crystallite size approx. 3 nm, which is almost similar to the average particle size calculated from electron micrographs. Atomic absorption spectrometer has been used for qualitative and quantitative analysis of synthesized nanomaterials. Photo-catalytic activity has been studied using methylene blue dye as a test contaminant. Energy resolved luminescence spectra have been recorded for the detailed description of radiative and non-radiative recombination mechanisms. Photo-catalytic activity dependence on dopant concentration and luminescence quantum yield has been studied in detail.</p>