SYNTHESIS AND CHARACTERIZATION OF COPPER HYDROXYNITRATE BY HYDROTHERMAL METHOD

Year 2016, Volume: 1 Issue: 1, 183 - 192, 23.02.2017

Eda Keleş Güner , A. Kadir Özer

Abstract

In this study, copper hydroxynitrate (Cu₂(OH)₃NO₃) was synthesized by hydrothermal method using Cu(NO₃)₂.3H₂O and Na₂B₄O₇.10H₂O as reactants with the addition of zwitterionic 3-(N,N-dimethyldodecylammonio) propanesulfonate (SB12) as the surfactant at 180˚C for 24h. The sample was calcined at 400ºC. The prepared samples were characterized by thermal gravimetric analysis (TGA), X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectra, and scanning electron microscopy (SEM) techniques. According to X-ray diffraction results monoclinic copper hydroxynitrate (Cu₂(OH)₃.NO₃) and CuO were obtained at 180ºC, calcined at 400ºC, respectively. TG-DTA analysis showed single stage weight loss. The weight loss of 33.27% at 350°C represents a contemporaneous dissociation of HNO₃ and H₂O. The FTIR analysis indicates the samples have O-H, O-NO_2, N-O and Cu-OH group bands. The SEM results reveal that the copper hydroxynitrate have micrometer-size hexagonal plates.

References

• Alp, B., Atakul Savrık, S., Balkose, D., 2014. Preparation and Characterization of Copper Borates as Lubricant Additives. Journal of Materials Science and Engineering B4, (4), 95-108.
• Anandan, S., Wu, J.J., Ashokkumar, M., 2015. Sonochemical Synthesis of Layered Copper Hydroxy Nitrate Nanosheets. ChemPhysChem., 16, 3389–3391.
• Ba, N., Zhu, L., Li, H., Zhang, G., Li, J., Sun, J., 2016. 3D rod-like copper oxide with nanowire hierarchical structure: Ultrasound assisted synthesis from Cu2(OH)3NO3 precursor, optical properties and formation mechanism. Solid State Sciences, 53, 23–29.
• Bozkurt, G., Bayrakçeken, A., Özer, A.K., 2014. Synthesis and characterization of CuO at nanoscale. Applied Surface Science, 318, 244–250.
• Dagher, S., Haik, Y., Ayesh, A.I., Tit, N., 2014. Synthesis and optical properties of colloidal CuO nanoparticles. Journal of Luminescence, 151, 149-154.
• Ghotbi, M.Y., Rahmati, Z., 2015. Nanostructured copper and copper oxide thin films fabricated by hydrothermal treatment of copper hydroxide nitrate. Materials & Design, 85, 719–723.
• Phiwdang, K., Suphankija, S., Mekprasarta, W., Pecharapaa, W., 2013. Synthesis of CuO Nanoparticles by Precipitation Method Using Different Precursors. Energy Procedia, 34, 740-745.
• Ramesh, T.N., Madhu, L., 2015. Thermal Decomposition Studies of Layered Metal Hydroxynitrates (Metal: Cu, Zn, Cu/Co, and Zn/Co). International Journal of Inorganic Chemistry, 11.
• Wolf, S., Feldmann, C., 2010. Cu2X(OH)3 (X =Clˉ, NO3ˉ): Synthesis of Nanoparticles and its application for room temperature deposition/printing of conductive copper thin-films. J. Mater. Chem, 20, 7694–7699.