| 학회 | 한국재료학회 |
| 학술대회 | 2018년 봄 (05/16 ~ 05/18, 삼척 쏠비치 호텔&리조트) |
| 권호 | 24권 1호 |
| 발표분야 | G. 나노/박막 재료 분과 |
| 제목 | InP Nanorods/Optical Fibers for Trace Contaminant Control System of Spacecraft |
| 초록 | Decomposition of volatile organic compounds (VOCs) by means of photocatalysts has been studied for designing of spacecraft and spacesuit. Especially for long period mission such as planet exploration, because they cause diseases such as central nervous disorder, irritation of mucosa and arrhythmia. As present VOCs control system that are composed by a charcoal bed for adsorption, a sorbent bed(2kg of LiOH/day-person, LiOH affects irritation of eyes) and a catalytic oxidizer(operated at 400°C) is heavy, high power consumption and complex, thus, newly development of compact, efficient and highly durable VOCs control system is required now. In this study, we suggested that InP nanorods enable to reduce weight of present VOCs control system and hazardous LiOH replacement. What we suggest that InP nanotubes mean having a optical property by small band gap is to be enable under visible light irradiation. InP is available at visible-light irradiation due to its band gap of 1.35eV. InP nanorods were prepared by acidic based hydrothermal reaction in convection oven. InP nanorods were characterized for decomposition of VOCs that confined on surface of rod walls to protect astronauts against VOCs. VOCs for decomposition test were considered based on spacecraft maximum allowable concentrations table from NASA. Their efficiency of VOCs decomposition in both InP nanorod-coated optical fibers will be investigated and evaluated in the trace contaminant system of spacecrafts. Acknowledgement This research was supported by space Core Technology Development Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education Science and Technology(MEST) (2017M1A3A3A02016666) |
| 저자 | Dong Yun Kim, Hyun Kim, Bee Lyong Yang |
| 소속 | Kumoh National Institute of Technology |
| 키워드 | Volatile organic compounds; Optical fiber; InP nanorod |
