| 학회 |
한국재료학회 |
| 학술대회 |
2014년 가을 (11/27 ~ 11/28, 대전컨벤션센터) |
| 권호 |
20권 2호 |
| 발표분야 |
C. 에너지/환경 재료(Energy and Environmental Materials) |
| 제목 |
Effect of the Annealing Treatment on the Optical and Photocatalytic Behaviors of Solution combusted ZnO Nanopowders 어닐링 처리가 용액연소법으로 제조된 ZnO나노분말의 광학적 광촉매적 거동에 미치는 영향 |
| 초록 |
Nano-sized ZnO powders were prepared by Solution Combustion Method (SCM). The ZnO powder using Zn(OH)2 and glycine as an oxidant and a fuel (fuel/oxdant=0.8), showed good powder characteristics such as average grain size of 30nm and the specific surface area of 120m2/g. PL spectra from SCM ZnO powders showed a single sharp peak at near 390nm. Furthermore, the blue light intensity was doubled when the synthesized ZnO powders was heat-treated at 400 o C. Also, to comfirm photocatalytic activities of the heat-treated ZnO powder, the Ag ions from a used photo-film developer were completely removed within 10 min. The Ag ions removal rate of the heat-treated ZnO powder was more than 2 orders of magnitude faster than that of the SCM ZnO powder. These results might be very useful for the high efficient photocatalyst application. |
| 저자 |
박성, 조아라, 허정우, 유다영, 유병호, 이재춘
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| 소속 |
명지대 |
| 키워드 |
Solution combustion method; ZnO nanopowder; Annealing; PL spectra; Photocatalyst
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| E-Mail |
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