• P. Ajith
• J. Agnes
• M. Sappani Muthu
• M. Ambrose Rajkumar
• D. Prem Anand

The structural and optical properties of bentonite doped ZnO nanoparticles prepared by wet chemical method have been investigated. Since last few years, synthesis of nanoparticles has been attracted considerable attention. The advantages of producing nanoparticles by wet chemical method are is easeful, flexible, fast, cost effective, and pollution free. Nanostructured Zinc Oxide have wide range of applications due to their interesting size-dependent chemical and physical properties compared to particles of size in the range of micrometer such as catalysts, cosmetics, microelectronic device, semiconductors, sporting goods and textiles. Zinc Oxide nanoparticles appear as a white powder. ZnO nanoparticles were synthesized by simple wet chemical method using basic Zinc Chloride as synthesized precursor and NaOH as stabilizing agent. Appropriate molar weight of zinc chloride was dissolved in 50 ml of double distilled water. 5mL of NaOH solution is added in limited intervals while the mixture is stirred by a magnetic stirrer for 3 to 4 hours. The precipitate is washed using ethanol, filtered and finally calcinated at 600o C for 8 hours. In this way Pure ZnO nanoparticles are prepared and the nanoparticles are doped with bentonite using same process by adding desired weight amount (0.5 and 0.005 gms) of the same molar weight. Due to its near-UV emission and visible light transparency, ZnO is useful for the fabrication of light-emitting diodes, UV-radiation detectors, and transparent contacts in solar cells. In order to increase the carrier concentration and modify the optical properties of ZnO nanoparticles, the bentonite doping is proposed in present work. The undoped and bentonite doped ZnO nanoparticles, was successfully prepared by chemical technique. The functional group and structure was confirmed by FTIR and XRD analysis. The optical properties of ZnO and bentonite doped were analyzed by UV-Visible. Scanning electron microscope (SEM) is used to study the surface of prepared nanoparticles.

Nano crystals, wet chemical, optical properties

"Synthesis and Characterization Studies of Pure ZnO and Bentonite Doped ZnO Nanocrystals", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 9, page no.e784-e794, September 2021, Available :http://www.jetir.org/papers/JETIR2109497.pdf

"Synthesis and Characterization Studies of Pure ZnO and Bentonite Doped ZnO Nanocrystals", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 9, page no. ppe784-e794, September 2021, Available at : http://www.jetir.org/papers/JETIR2109497.pdf