| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO)) |
| 권호 |
23권 1호 |
| 발표분야 |
디스플레이_포스터 |
| 제목 |
TiO2-GQDs Nanocomposite for Room Temperature NO Gas Sensing under UV Light Irradiation |
| 초록 |
Nitric oxide (NO) gas sensor has garnered extensive interest considering the NO gas adverse effects on environment and human health. Metal oxides require a high temperature to accelerate the gas interaction with the oxide surface, which is not adequate while detecting the flammable analytes. UV light illumination is observed to enhance the gas interaction with the oxide similar to thermal energy. In this study, we employed UV photoconductive graphene quantum dots(GQDs) and N-doped GQDs(NGQDs) to enhance the room temperature NO gas sensing of TiO2 nanoplates. In the dark, TiO2-GQDs and TiO2-NGQDs exhibited 3 and 4 folds response increment to NO gas compared to TiO2 nanoplates, respectively. Under the UV illumination, TiO2-GQDs and TiO2-NGQDs exhibited further increased NO gas response, 2 and 3 times higher response is noted compared to their response in the dark, respectively. The TiO2-NGQDs sensor shows good selectivity to NO gas. 2019년 한국교통대학교 지원을 받아 수행하였음. |
| 저자 |
GUNTAKRINDA MURALI, Chundi Seshendra Reddy, 권빈희, 박성민, 인인식
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| 소속 |
한국교통대 |
| 키워드 |
Gas sensor; Nitric oxide; TiO2-GQDs; Room temperature; UV illumination
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| E-Mail |
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