| AVS 55th International Symposium & Exhibition | |
| Biological, Organic, and Soft Materials Focus Topic | Tuesday Sessions |
| Session BO-TuP |
| Session: | Biological, Organic, and Soft Materials Focus Topic Poster Session |
| Presenter: | J.E. Jee, Kunsan National University, Korea |
| Authors: | J.E. Jee, Kunsan National University, Korea W.K. Yang, Kunsan National University, Korea J.H. Joo, Kunsan National University, Korea |
| Correspondent: | Click to Email |
We investigated sterilization characteristics of UV lights by counting the number of bacteria units with varying sterilization time and distance from the light source. When we irradiated 253.7nm on pens, we used UV transparent quartz plate as a support and put a reflecting plate and UV effect is increased about twice. But even with an Al reflector, multi-layered pens could not be treated properly from UV irradiation only. So, we focused on an idea that UV light of 184.9nm could generate ozone and developed a new sterilizer. Ozone generating lamp could treat more uniformly multi-layered pens with a stirring fan by supplying ozone to shadowed surfaces and keep out the temperature rising. Distribution of UV irradiation intensity and ozone supply were analyzed by a 3D model with varying geometry, position of reflectors and fans and confirmed by a semiconductor UV sensor and ozone analyser. We tried to evaluate the enhancement of a TiO2 photo-catalytic surface by direct sampling with a differentially pumped QMS.