RJCES Vol 2 [5] October 2014 55 | P age © 2014 AELS, INDIA ORIGINAL ARTICLE Preparation Characterization and Comparative Study of Nano MnO2 Using Various capping Agent K.Karthikeyan 1 , R.Shanmugaselvan 2 , K. Gokulakrishnan* 1, 2, 3, Department of chemistry PRIST University, Thanjavur. Nandhu_gokul@yahoo.com ABSTRACT MnO2 nanoparticles were prepared size bellow 100 nm synthesized by hydrothermal technique by using the H2SO4 solution by adding KMnO4 with the help of cyclohexane for surfactant reagent at temperature of 80° C. The surface morphology of the synthesized products was examined by scanning electron microscopy (SEM). The structural and compound identification of sample was carried out using X-ray diffraction is employed for characterization of the nanostructure. The results show that a MnO2 nanoparticle with bellow 100 nm was synthesized by low temperature hydrothermal technique. Key words: Cyclohexane, X-ray diffraction, hydrothermal. Received 12.07.2014 Accepted 20.09.2014 © 2014 AELS, INDIA INTRODUCTION The batteries are the important uses in our daily life. Inside of the batteries Li/Mno2 then the MnO2 is the very important of the batteries. They are widely used as catalysts, molecular, sieves and ion sieves and especially as electrode materials in batteries. MnO2are most attractive materials because of its ion- exchange, molecular adsorption, magnetic properties, catalytic, and electrochemical properties. MnO2 nanoparticles were several different structures, including α-, β-, γ-MnO2. The properties of MnO2 depend not only on the manganese oxidation state, but also on the structure type of MnO2 nanoparticles. There are large numbers of potential applications of MnO2 metal nanoparticles such as in the field of electrode materials in different rechargeable batteries, biosensors, coatings, nanofibers, nanowires and also in specific biogenic and bioscience applications. Effect of organic solvents on nanoparticles of metals hydroxide or oxide formation during chemical precipitation was used for developing effect of nanodimensional materials. This is the important way for chemists to expand their activity into Nanoscience. The nanoMnO2 particles haveexcellent adsorption material for treatment of several pollutants in water environment. In this paper report a novel and simple approach to synthesized of MnO2 three dimensional nano structures with diameters of below 100 nm by hydrothermal reaction at low temperature and requires no expensive raw materials and equipment’s. And we also discussed the effect of capping agent in nano size. And find a suitable capping agent for preparing magnetic nano particle. EXPERIMENTAL MnO2 can be obtained from reduction of potassium permanganate (KMnO4) with sulfuric acid (H2SO4) during hydrothermal treatment. The chemical reaction between potassium permanganate and sulfuric acid can be formulated as: MnO4 − + 8H + + 5e → Mn2 + + 4H2O→2MnO2+ 8H + 4gm KMnO4 powder was dissolved into 2.5M of 200ml sulfuric acid aqueous solution while heating to 80° C for 1 hours along with stirring. The precipitates were produced and the solution color was changed during reaction, and the reaction course was monitored by the color change from purple to brown. The system was then naturally cooled to room temperature when the reaction finished. The obtained products were washed thoroughly with deionized water to remove possible remaining ions, and then Research Journal of Chemical and Environmental Sciences Res J. Chem. Environ. Sci. Vol 2 [5] October 2014: 55-58 Online ISSN 2321-1040 CODEN: RJCEA2 [USA] ©Academy for Environment and Life Sciences, INDIA Website: www.aelsindia.com/rjces.htm R R R J J J C C C E E E S S S