| 학회 | 한국화학공학회 |
| 학술대회 | 2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 | 13권 2호, p.2520 |
| 발표분야 | 촉매 및 반응공학 |
| 제목 | Photocatalytic activity of Ca1-xMgxFe2O4 nanocrystals |
| 초록 | Perovskite-type oxide materials based on transition metals with d(0) electron configuration such as Nb(V), Ta(V), and Ti(IV) are efficient photocatalysts for overall water splitting with high quantum yields. However, the large band gaps of these materials (ca. 3.8-4.0 eV) are not suitable for the visible light photocatalysis. Very recently we observed that photocatalyst consisting of nanocomposites are efficient in utilization of visible light photons. Hence we report here a study on the synthesis and application of nanocrystalline ternary metal-oxide. Here, we report the new finding that nanocrystalline Ca1-xMgxFe2O4, viz. a p-n type photocatalysts have activity for the photoreaction of water under visible light irradiation. We characterized the optical properties of nanocrystalline Ca1-xMgxFe2O4 by UV-vis diffuse reflectance spectroscopy and X-ray diffraction. |
| 저자 | 김현규1, 장점석2, 지상민2, 홍석준2, 진종성1, 정의덕1, 이재성2 |
| 소속 | 1한국기초과학지원(연), 2포항공과대 |
| 키워드 | Calcium ferrites; Nano-particles; polymerized complex method; Visible light; Photocatalytic activity |
| 원문파일 | 초록 보기 |
