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      https://www.ias.ac.in/article/fulltext/pram/078/05/0759-0766

    • Keywords

       

      ZnO nanoparticles; ZnO–PVA nanofluid; structural, optical and ultrasonic properties.

    • Abstract

       

      The synthesis and characterization of nanosized zinc oxide and its nanofluid in a polyvinyl alcohol (PVA) matrix have been done in the present investigation. Crystalline zinc oxide nanoparticles are synthesized using single-step chemical method while the nanofluids are prepared by the dispersion of nanoparticles in PVA solution using an ultrasonicator. The prepared nanoparticles are characterized using X-ray diffraction, SEM–EDX and UV–visible spectrum. The particle size distribution measurement is carried out by acoustic particle sizer. The ultrasonic velocities are measured in the synthesized nanofluid under different physical conditions using an ultrasonic interferometer. It is found that the degree of crystallinity of nanoparticles depends on the evaporation rate during its synthesis and ultrasonic velocity has non-linear relation with temperature for the present nanofluid.

    • Author Affiliations

       

      D K Singh1 D K Pandey2 R R Yadav3 Devraj Singh4

      1. Department of Physics, Government Inter College, Bangra, Jalaun 285 121, India
      2. Department of Physics, P.P.N. College (P.G.), Kanpur 208 001, India
      3. Department of Physics, University of Allahabad, Allahabad 211 002, India
      4. Department of Applied Sciences, Amity School of Engineering and Technology, Bijwasan, New Delhi 110 061, India
    • Dates

       
  • Pramana – Journal of Physics | News

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