International Science Community Association Research Journal of Chemical Sciences 2231 - 606X 7 1 2017 01 18 Chemical synthesis of cobalt oxide (Co3O4) nanoparticles using Co-precipitation method 53 55 EN Borse G.P. 1 Department of Chemistry, R.L. College, Parola–425 111, MS, India Pethe G.B. 1 Department of Chemistry, Sant Gadge Baba Amravati University Amravati-444 602, MS, India Bansod A.D. 2 Department of Chemistry, Sant Gadge Baba Amravati University Amravati-444 602, MS, India Devhade J.B. 3 Department of Chemistry, Sant Gadge Baba Amravati University Amravati-444 602, MS, India Maldhure A.K. 4 Department of Chemistry, Sant Gadge Baba Amravati University Amravati-444 602, MS, India Aswar A.S. 5 Department of Chemistry, Sant Gadge Baba Amravati University Amravati-444 602, MS, India Muskawar Prashant Narayan 1 Department of Chemistry, Amolakchand Mahavidyalaya, Yavatmal, 445 001, India Bhagat Pundlik Rambhau 2 Organic Chemistry Division, SAS, VIT University, Vellore, 632 014, India Nemade A.M. 1 Department of Chemistry, Dr. A.G.D. Bendale Mahila Mahavidyalaya, Jalgaon-425001, MS, India Patil K.D. 2 Department of Chemistry, Bhusawal Arts, Science and P O N Commerce College, Bhusawal-425201, MS, India Kolhe V.C. 3 Ex. Director, BCUD, North Maharashtra University, Jalgaon-425001, MS, India Kamble Pravin B. 1 P.G. Department of Botany, Plant Physiology Section, Krishna Mahavidyalaya, Rethare Bk., Tal-Karad, Dist –Satara, MS, India Patil Dhairyasheel B. 2 P.G. Department of Botany, Plant Physiology Section, Krishna Mahavidyalaya, Rethare Bk., Tal-Karad, Dist –Satara, MS, India Bhamburdekar S.B. 3 P.G. Department of Botany, Plant Physiology Section, Krishna Mahavidyalaya, Rethare Bk., Tal-Karad, Dist –Satara, MS, India Jain Nidhi 1 Department of Chemistry, Banasthali Vidyapith, Banasthali, Rajasthan, India Chaudhary Radha 2 Department of Chemistry, Geetanjali Institute of Technical Studies, Dabok, Udaipur, Rajasthan, India Singh Bhawani 3 Department of Pure and Applied Chemistry, University of Kota, Kota, Rajasthan, India Wajid Abdul 1 P.G. Department of Chemistry, Shri Shivaji College of Arts, Commerce and Science, Akola-444 003, MS, India Mohod R.B. 2 P.G. Department of Chemistry, Shri Shivaji College of Arts, Commerce and Science, Akola-444 003, MS, India Bobade Anil 1 Department of Industrial Chemistry; Arts, Science and Commerce College, Chikhaldara, Amravati, MS-444807, India Wadekar K.F. 1 Department of Physics, Sant Gadge Baba Amravati University, Amravati-444 602, India Nemade K.R. 2 Department of Physics, Sant Gadge Baba Amravati University, Amravati-444 602, India Waghuley S.A. 3 Department of Physics, Sant Gadge Baba Amravati University, Amravati-444 602, India > Short Communication 2016 3 22 2017 01 18 In the present work, Cobalt oxide (Co3O4) nanoparticles were synthesized by co-precipitation method. The structural purity of as-prepared nanoparticles was confirmed by using X-Ray diffraction (XRD) analysis. The average particle size of amorphous structure of Co3O4 nanoparticles was found to be 25.62 nm and lattice parameter 7.97Å. The optical band gap of Co3O4 nanoparticles was estimated by using ultraviolet-visible (UV-VIS) spectroscopy. The direct band gap value was found to be 4.07eV. Photoluminescence (PL) spectroscopy was investigated two broad emission peaks at wavelength 396nm, 467nm of Co3O4 nanoparticles. Copyright@ International Science Community Association