1. 제목 : Flame Aerosol Reactors for Processing Titanium Dioxide


Powders and Films : From Nanoparticles to Nanocomposites





2. 연사 : Professor Pratim Biswas


Aerosol and Air Quality Research Laboratory


Environmental Engineering and Science Division


University of Cincinnati


Cincinnati, OH 45221-0071





3. 일시 : 1999년 11월 4일 (목요일) 11:00 - 12:00





4. 장소 : 신공학관 (301동) 1512호





5. 내용 :


Flame aerosol reactors have been used to produce titania powders with well controlled properties, and of different sizes, phase compositions and morphologies. By understanding the evolution of the size distribution and morphology of the particles in the flame, conditions can be readily controlled to produce powders and films with different characteristics. Titanium dioxide is a benign material with a large number of applications in pigments and as a photocatalyst. We have also demonstrated the use of titania in a variety of different applications : for the capture of toxic heavy metals, for providing corrosion protection to steel, and as a photocatalyst for green synthesis of partially oxygenated hydrocarbons3. In addition, by doping with transition metal oxides, we have produced nanocomposites which have resulted in photo-catalysts that are activated by solar light (in contrast to conventional titania which require uv irradiation). The presentation will provide a description of the processing of these materials in flame reactors and some of the novel applications.





6. 문의 : 최만수 교수 (☏ 880-7128)