유중수형(油中水型) 마이크로에멀젼법을 이용한 타이타니아 나노입자의 제조

• 영문명: Synthesis of TiO₂ nanoparticles using Water-in-oil microemulsion method
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 진소민(So Min Jin) 진현(Hyeon Jin) 김성주(Seong Ju Kim) 김유나(Yu Na Kim) 이대원(Dae-Won Lee)
• 간행물 정보: 『산업기술연구』vol.43, 1~6쪽, 전체 6쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2023.12.31

영문 초록

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°C.

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References

키워드

Titania Nanoparticles Water-in-oil Microemulsion Precipitation