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Synthesis & Characterization of Au-HKUST-1 Nanocomposite and Evaluation of Plasmonic Properties of Gold Nanoparticles in this Nanocomposite

Moazzeni, Hamid Reza | 2021

2021 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 54457 (07)
  4. University: Sharif University of Technology
  5. Department: Materials Science and Engineering
  6. Advisor(s): Madaah Hosseini, Hamid Reza
  7. Abstract:
  8. In the past few years, many research works on the controllable integration of metal nanoparticles and metal-organic frameworks were done, since the obtained composite material shows a synergism effect in catalysis and photocatalysis, drug delivery applications, gas, and energy storage, as well as sensing. For the first time, in this study, we employed template-assisted growth to synthesize Au-HKUST-1 Nanocomposite. XRD analysis entirely confirms that employing this strategy in synthesizing Au-HKUST-1 was wholly successful, and the plasmonic properties of this nanostructure were studied via UV-visible spectroscopy. In the course of synthesis, gold nanoparticles with 70nm diameter were synthesized and coated with cuprous oxide subsequently. The shell thickness was roughly about 20nm, and the coating generated a redshift in the LSPR peak of gold nanoparticles. The cuprous oxide coating is used as a sacrificing template on which the HKUST-1 particles were grown. Au-HKUST-1 nanostructure was synthesizing via soaking Au@Cu2O nanoparticles in an ethanolic solution of Trimesic Acid with various concentrations from 10 to 160 mM. The results show that LSPR properties were enhanced as the concentration of the Trimesic Acid solution was reduced. Au-HKUST-1 nanocomposite showed an LSPR peak around 600nm, which is red-shifted in comparison with bare gold nanoparticles
  9. Keywords:
  10. Nanocomposite ; Gold Nanoparticle ; Localized Surface Plasmons ; Metal-Organic Framework ; Localized Surface Plasmon Resonance ; Plasmonic Effects ; Hong Kong University of Science and Technolog (HKUST-1)

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