| 학회 |
한국화학공학회 |
| 학술대회 |
2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 |
28권 1호, p.1010 |
| 발표분야 |
[주제 12] 화학공학일반(부문위원회 발표) |
| 제목 |
Black-titania/glass fiber filter: Properties and its application in Solar to Steam |
| 초록 |
In this work, using vacuum annealing we introduce oxygen vacancies into TiO2 lattice, which changes natural white color into deep black. Oxygen vacancies present a confined state (defect) in the bandgap, which acts as a light absorption center. Developed black titania (B-TiO2) nanopowders exhibit high (>89%) broadband light absorption throughout entire solar spectrum. According to TEM and SEM analysis, there are no noticeable changes in the surface morphology of B-TiO2 and pristine TiO2, average particle size is 20-40 nm remains unchanged. The optimum deposition amount of B-TiO2 was found via carrying out depositions using various volumes 20, 25, 30 and 40 ml. The magnificent photo-thermal conversion capability of the B-TiO2/GF results in the rapid increase of temperature from 22.5 °C to 90 °C within 2 minutes upon exposure to 1-sun illumination. Finally, due to its evaporation rate of 1.32 - 1.37 kg–m-².h-¹, which is comparable to expensive plasmonic material, B-TiO2 nanoparticles deposited glass fiber is a promising alternative light absorber for Solar to Steam desalination. |
| 저자 |
Hussain Sayed Sajid1, Oleksii Omelianovych2, Liudmila L.Larina3, Nguyen Van Tuan4, 박은희1, 최호석2
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| 소속 |
1Chungnam National Univ., 2Daejeon, 3305-764, 4South Korea |
| 키워드 |
에너지 환경(Energy and Environment) |
| E-Mail |
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| 원문파일 |
초록 보기 |
