| 학회 | 한국화학공학회 |
| 학술대회 | 2010년 봄 (04/22 ~ 04/23, 대구 EXCO) |
| 권호 | 16권 1호, p.892 |
| 발표분야 | 촉매 및 반응공학 |
| 제목 | The effect of dissolved oxygen on the 1,4-dioxane degradation with TiO2 and AuTiO2 photocatalysts |
| 초록 | Noble metals, e.g. Au nanoparticles, have been expected to assist an efficient charge separation of photogenerated electron-hole pairs leading to promoting the photocatalytic activity of TiO2. On the other hand, dissolved oxygen (DO) in an aqueous solution can also play a role as an electron acceptor to prevent the recombination of photogenerated charge carriers. In this study, we investigated the combined system of Au nanoparticles incorporated with TiO2 and DO to gain insight into the relationship between them using a photocatalytic degradation of 1,4-dioxane. Specifically, three different TiO2 photocatalysts that have different amount of Au nanoparticles were applied in photocatalytic reaction in the aqueous phase with different DO level. The rate constants of 1,4-dioxane photodegradation indicated the DO dependency is disproportional to the Au loading amount, implying that there is an overlapping function in capturing electrons between Au nanoparticles and DO. The details of the experiment and results will be discussed in the presentation. |
| 저자 | 윤나경1, 허라윤2, 민병권3 |
| 소속 | 1고려대, 2연세대, 3한국과학기술(연) |
| 키워드 | photodegradation |
| 원문파일 | 초록 보기 |
