Journal of Industrial Technology (산업기술연구)

Kangwon National University, Institute of Industrial Technology (강원대학교 산업기술연구소)
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Synthesis of TiO2 nanoparticles using Water-in-oil microemulsion method

유중수형(油中水型) 마이크로에멀젼법을 이용한 타이타니아 나노입자의 제조

  • So Min Jin (Hyundai Welding, Ulsan Engineering Center) ;
  • Hyeon Jin (Department of Chemical Engineering, Kangwon National University) ;
  • Seong Ju Kim (Department of Chemical Engineering, Kangwon National University) ;
  • Yu Na Kim (Department of Chemical Engineering, Kangwon National University) ;
  • Dae-Won Lee (Department of Chemical Engineering, Kangwon National University)
  • Received : 2023.10.24
  • Accepted : 2023.11.08
  • Published : 2023.12.31
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Abstract

TiO2 is a versatile metal oxide material that is frequently used as a photo-catalyst for organic pollutant oxidation and a functional material for ultraviolet-ray protection. To improve its chemical/physical properties and widen the range of industrial application, it is demanded to control the crystalline feature and morphology precisely by applying advanced nano-synthesis methods. In this study, we prepared TiO2 nanoparticles using the water-in-oil (W/O) microemulsion method and compared them with the particles synthesized by the conventional precipitation method. Also, we tried to find the optimum conditions for obtaining nano-sized, anatase-rich TiO2 particles by the W/O microemulsion method. We analyzed the crystalline feature and particle size of the prepared samples using X-ray diffraction (XRD) and Transmission electron microscopy (TEM). In summary, we found the W/O microemulsion is more effective than precipitation in obtaining nano-sized TiO2. The best result was derived when the microemulsion was formed using AOT surfactant, hydrolysis was performed under basic condition and the sample was calcined at 200℃.

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References

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