한국표면공학회지 (Journal of the Korean institute of surface engineering)

  • 제57권3호
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  • Pages.179-191
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  • 2024
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  • 1225-8024(pISSN)
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  • 2288-8403(eISSN)
한국표면공학회 (The Korean Institute of Surface Engineering)
권호 표지
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Enhanced Photocatalytic Disinfection Efficiency through TiO2/WO3 Composite Synthesis and Heat Treatment Optimization

  • Sang-Hee Kim (Department of Coast Gurad Sutdies, National Korea Maritime and Ocean University) ;
  • Seo-Hee Kim (Department of Ocean Advanced Materials Convergence Engineering, National Korea Maritime and Ocean University) ;
  • Jun Kang (Department of Marine System Engineering, National Korea Maritime and Ocean University) ;
  • Myeong-Hoon Lee (Korea Institute of Corrosion Science and Technology, National Korea Maritime and Ocean University) ;
  • Yong-Sup Yun (Department of Coast Gurad Sutdies, National Korea Maritime and Ocean University)
  • 투고 : 2024.04.12
  • 심사 : 2024.06.03
  • 발행 : 2024.06.30
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초록

This study focuses on improving the photocatalytic degradation efficiency by synthesizing a TiO2/WO3 composite. Given the environmental significance of photocatalysis and the limitations posed by TiO2's large bandgap and high electron recombination rate, we explored doping, surface modification, and synthesis strategies. The composite was created using a ball mill process and heat treatment, analyzed with field emission scanning electron microscope, high resolution X-ray diffraction, Raman microscope, and UV-Vis/NIR spectrometer to examine its morphology, composition and absorbance. We found that incorporating WO3 into the TiO2 lattice forms a Wx-Ti1-x-O2 solution, with optimal WO3 content reducing the band gap and enhancing sterilization efficiency by inhibiting the anatasese to rutile transition. This contributes to the field by offering a way to overcome TiO2's limitations and improve photocatalytic performance.

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