이명훈 김민수 진성민 박은석 이교우 2024-01-20T19:30:28Z 2024-01-20T19:30:28Z 2021-09-06 2010-05 1225-4517 https://pubs.kist.re.kr/handle/201004/131462 The generation of TiO2 nanoparticles by a thermal decomposition of titanium tetraisopropoxide (TTIP) was carried out experimentally using a tubular electric furnace at various synthesis temperatures (700, 900, 1100 and 1300℃) and precursor heating temperatures (80, 95 and 110℃). Effects of degree of crystallinity, surface area and anatase mass fraction of those TiO2 nanoparticles on photocatalytic properties such as decomposition of methylene blue was investigated. Results show that the primary particle diameter obtained from thermal decomposition of TTIP was considerably smaller than the commercial photocatalyst (Degussa, P25). Also, those specific surface areas were more than 134.4㎡/g. Resultant TiO2 nanoparticles showed improved photocatalytic activity compared with Deggusa P25. This is contributed to the higher degree of crystallinity, surface area and anatase mass fraction of TiO2 nanoparticles compared with P25. Korean 한국환경과학회 기상 합성 TiO2 나노입자의 특성 및 광촉매 특성 Characteristics and Photocatalytic Properties of TiO2 Nanoparticles Synthesized by Thermal Decomposition Process Article 2 한국환경과학회지, v.19, no.5, pp.577 - 584 한국환경과학회지 19 5 577 584 kci ART001448713 Thermal decomposition TiO2 Methylene blue