| 학회 |
한국화학공학회 |
| 학술대회 |
2004년 가을 (10/29 ~ 10/30, 호서대학교(아산캠퍼스)) |
| 권호 |
10권 2호, p.1905 |
| 발표분야 |
에너지/환경 |
| 제목 |
A Study on formation and characteristic of titanium oxynitride derived from the precipitated complex of titanium(III) chloride and ammonium hydroxide |
| 초록 |
TiO2-xNy nanoparticle was formed by employing the complex of titanium(III) chloride and ammonium hydroxide as a source of nitrogen. During calcination, an anatase phase of titanium oxide was formed and a part of oxygen in titanium precipitate was successfully substituted by nitrogen originated from strong interacted (or adsorbed) ammonium hydroxide on titanium precipitate. The resulting oxynitride photocatalysts absorb the visible light region, which suggests that the bandgap of TiO2-xNy is narrowed, comparing to that of titanium oxide. Although absorption region is like a small shoulder, TiO2-xNy photocatalyst has the photoactivity to decompose gaseous 2-propanol (IPA) under visible light irradiation. In this work, we investigate the mechanism to form TiO2-xNy and characterize its physical and chemical properties. |
| 저자 |
장점석1, 김현규1, 배상원1, 황동원2, 지상민1, 손효창1, 이재성1
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| 소속 |
1포항공과대, 2삼성전자 |
| 키워드 |
: Photocatalysts; Oxynitrides; Visible light absorption; XPS
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| E-Mail |
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| 원문파일 |
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