| 학회 | 한국공업화학회 |
| 학술대회 | 2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터) |
| 권호 | 18권 1호 |
| 발표분야 | 우수논문(구두) |
| 제목 | Synthesis of Graphene-based Composites for Environmental and Energy Applications |
| 초록 | The rapid injection of precursors of Ag, Au, and Pd immediately after UV lamp was turned off caused the formation of metal nanoaprticles on reduced graphene oxide (rGO) sheets since photoreduced phosphotungstates as well as electrons stored in rGO directly reduced metal ions. Visible light irradiation stimulated the structural change of GO itself, and this behaviour was utilized for the deposition of metal nanoparticles on GO. The rGO hybridized with TiO2 was prepared as a low-cost alternative to Pt and a highly enhanced activity for the photocatalytic oxidation of As(III) was accomplished, which is comparable to that of Pt/TiO2. Also, TiO2 hybridized with rGO as a cocatalyst resulted in highly-enhanced photocatalytic generation of hydrogen peroxide even comparable to noble metals (Au, Ag, and Pt) loaded on TiO2 (M/TiO2). In the presence of phosphate, the formation of hydrogen peroxide significantly increased due to the stabilization of the TiO2 surface whose passivation layer effectively inhibited the decomposition of hydrogen peroxide. |
| 저자 | 문건희, 최원용 |
| 소속 | 포항공과대 |
| 키워드 | Graphene; Photocatalysis; Metal nanoparticles; TiO2; Composites |
