| 학회 | 한국화학공학회 |
| 학술대회 | 2006년 가을 (10/27 ~ 10/28, 고려대학교) |
| 권호 | 12권 2호, p.2527 |
| 발표분야 | 재료 |
| 제목 | Photoluminescence and photocatalytic properties of M-doped TiO2 (M = Co and Cr) materials |
| 초록 | Recently, some UV-active oxides turned into visible-light photocatalysts by substitutional doping of metals as in (Fe-, V-, or Mn-)-TiO2 and NixIn1-xTaO4, reduced TiOx (x＜2), and anion doping with N, C and S, as in TiO2-xNx , TiO2-xCx, TaON and Sm2Ti2O5S2 . Despite such reports there are no reports on the evolution of H2 under visible irradiation from Metal doped-TiO2 nanoparticles. Here, we report the new finding that the metal-doped TiO2 nanoparticles have a activity for the photoreaction of water under visible light irradiation. We characterized the electronic structure of Cr-doped TiO2 nanoparticles by FP-LAPW, and characterized them with UV-vis diffuse reflectance spectroscopy (UV-vis DRS) and X-ray diffraction (XRD). We obtained excitation and emission spectra of Cr-doped TiO2 nanoparticles from visible light to near infrared region at room temperature. This report describes the characteristics of Cr-doped TiO2 fabricated by the hydrothermal synthesis method and their photocatalytic activity for water splitting under visible light irradiation. |
| 저자 | 김현규1, 정의덕1, 유성미1, 배종성1, 홍경수1, 박혁규1, 홍석준2, 배상원2, 지상민2, 장점석2, 이재성2 |
| 소속 | 1한국기초과학지원(연), 2포항공과대 |
| 키워드 | PL |
| 원문파일 | 초록 보기 |
