• Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      ZnO nanoparticles; polyethylene glycol; dispersion activity; optical properties; physiochemical properties; Survismeter.

    • Abstract


      X-ray powder diffraction pattern, field emission scanning electron microscope image and Fourier transform infrared spectra of synthesized zinc oxide nanoparticles (ZnO NPs) confirm hexagonal crystal, hexagonal wurtzite structureand characteristic of mode (E$_2$) for the hexagonal phase and formation of Zn-O band, respectively. Viscosity (${\eta}$, ±10$^{-4}$ mPa.s), surface tension (${\gamma}$, ±10$^{-3}$ mN m$^{-1}$), friccohesity (${\sigma}$, ±10$^{-6}$s m$^{-1}$) and activation energy (${\Delta}$${\mu}_2$*, ±10$^{-3}$ kJ mol$^{-1}$)of dispersion systems were studied. PEG$_{400}$ and PEG$_{6000}$ were used to disperse ZnO NPs in water at six micro molar concentrations from 25 to 150 ${\mu}$M at 303.15 K. Pendant drop numbers (n) and viscous flow times (t, s) were recorded using Borosil Mansingh Survismeter instrument. Recorded data were used for further calculations with Mansingh equations to assess the physicochemical properties and regressed for their limiting values and slopes. UV–visible spectrophotometer showed hyperchromic and hypsochromic effect due to the interaction of ZnO NPs with solvent in the presence of polyethylene glycol (PEG). This study focused on the effect of dispersion interactions of ZnO NPs in water, PEG$_{400}$ and PEG$_{6000}$.The molecular interaction mechanism were investigated through physicochemical and optical methods for ZnO NPs interaction with solvent molecules to improve the dispersion potential process. The results revealed a significant impact of NPs dispersion in water facilitated by PEG$_{400}$ and PEG$_{6000}$, which will be important for industrial suspensions and medicine to develop studies on additives dispersion.

    • Author Affiliations



      1. Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431004, India
      2. Department of Chemistry, Indian Institute of Teacher Education, Gandhinagar 382016, India
    • Dates

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2022-2023 Indian Academy of Sciences, Bengaluru.