Journal of Ceramic Processing Research

한양대학교 세라믹연구소 (Ceramic Processing Research Center)
권호 표지

Sodium titanate as an infrared reflective material for cool roof application

  • Ullah, Mahboob (Energy Environment Division, Korea Institute of Ceramic Engineering and Technology (KICET)) ;
  • Kim, Hee Jung (Energy Environment Division, Korea Institute of Ceramic Engineering and Technology (KICET)) ;
  • Heo, Jae Gu (Energy Environment Division, Korea Institute of Ceramic Engineering and Technology (KICET)) ;
  • Roh, Dong Kyu (Energy Environment Division, Korea Institute of Ceramic Engineering and Technology (KICET)) ;
  • Kim, Dae-Sung (Energy Environment Division, Korea Institute of Ceramic Engineering and Technology (KICET))
  • 투고 : 2018.12.09
  • 심사 : 2019.01.11
  • 발행 : 2019.07.01

⟨ 이전 논문 다음 논문 ⟩

초록

A solid-state route was used to prepare sodium titanium oxide (NTO, Na2Ti3O7) as a solar heat protecting material with an impressive solar reflectance (TSR = 94.3%) using a high refractive index rutile TiO2. The solar reflectance of the synthesized NTO was measured using UV-Vis-NIR spectrophotometer. Solar reflectance property of the synthesized compound depends on the calcination temperature. The solar reflectance property of the synthesized NTO powder was compared with commercial rutile TiO2. The compound synthesized at 900 ℃ for 24 hrs had remarkable solar reflectance 94.3% than that calcined below 900 ℃. Crystalline nature, structural property, morphology and optical properties of NTO powders were characterized and analyzed using XRD, FE-SEM, EDS and UV-Vis-NIR spectrophotometer. From the results, we guessed that NTO would be a suitable "solar heat protecting candidate" for energy-saving applications in coating industries.

키워드

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