%0 Journal Article
%T Synthesis of Silver-Doped Zinc Oxide Nanocomposite by Pulse Mode Ultrasonication and Its Characterization Studies
%A T. Siva Vijayakumar
%A S. Karthikeyeni
%A S. Vasanth
%A Arul Ganesh
%A G. Bupesh
%A R. Ramesh
%A M. Manimegalai
%A P. Subramanian
%J Journal of Nanoscience
%D 2013
%R 10.1155/2013/785064
%X The synthesis of silver-doped zinc oxide (Ag:ZnO) nanocomposite material was achieved using a simple chemical coprecipitation method, in which 0.2£¿M zinc chloride and 0.001£¿M silver nitrate coprecipitated with 25% ammonia solution by pulse mode dispersion using ultrasonicator. The obtained silvery white precipitate was dried overnight at 110¡ãC in hot air oven, and the powder was collected. The resulted Ag:ZnO nanocomposite was structurally and optically characterized using various techniques. The X-ray diffraction (XRD) pattern clearly showed the presence of crystalline Ag:ZnO particles. Further, UV-Vis spectrophotometer and fourier transform infrared spectroscopy (FT-IR) results showed the presence of Ag:ZnO nanocomposite at specific wavelengths. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis confirm that the synthesized Ag:ZnO nanocomposite material was truncated nanorod in shape and has 48 to 226£¿nm size in diameter. 1. Introduction Zinc oxide (ZnO) is an important industrial material, because it has an inorganic and semiconducting material with inherent properties that share its structure as wurtzite [1]. ZnO nanocomposite has attracted interest because of its optical properties. These particles are transparent to visible light, but they absorb UV-light. ZnO has attracted intensive research effort for its unique properties and versatile applications in transparent electronics, chemical sensors, and spin electronics [2¨C8]. A variety of metal oxides like zinc oxide, titanium dioxide (TiO2), and silicon dioxide (SiO2) and different techniques such as chemical coprecipitation [9, 10], sol-gel process [11, 12] chemical vapour deposition [13], thermal decomposition [14, 15], hydrothermal synthesis [16, 17], solid-state reaction [18], spray pyrolysis [19], vapour-liquid-solid method [20], and microemulsion precipitation [21¨C23] have been used so far. Hingorani et al. also reported the synthesis of ZnO nanoparticles (NPs) and it was the first study using reverse microemulsion in the early 1990s [24, 25]. Synthesis process of Ag:ZnO nanocomposite plays a key role in governing size, morphology, and its properties of nanocomposite through dispersion method (pulse mode), using ultrasonication [26]. The main objective of synthesis is to produce particles only in nanorod structure for various toxicity and biological application studies. There are different doping agents like P [27], N [28], As [29], Li [30], Sb [31¨C34], and Ag [35]. Among these, we have taken Ag as doping agent. Because the nature of Ag ions is simple
%U http://www.hindawi.com/journals/jns/2013/785064/