| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
포스터_디스플레이 |
| 제목 |
Formation of Multiple Heterojunction within Single Titanium Dioxide Nanoparticles for Novel metal-free Photocatalysis |
| 초록 |
Titanium dioxide (TiO2) polymorphs with heterojunctions composed of anatase and rutile outperform single-crystal phase TiO2 because of the type-II energetic band alignment within the interface. Here, we report the selective positioning of a disordered layer of controllable thickness between the anatase and rutile by a conceptually different synthetic route to access highly efficient novel metal-free photocatalyssis for hydrogen (H2) generation. These multiple heterojunctions within single TiO2 nanoparticles composed of crystalline anatase/disordered rutile/ordered rutile layers give the photocatalysts superior electron/hole separation efficiency and surface reactivity, which concomitantly yields an H2 production rate that is ∼11-times higher than that of Pt decorated conventional anatase and rutile single heterojunction TiO2 systems. |
| 저자 |
조윤준, 박종혁
|
| 소속 |
연세대 |
| 키워드 |
Multiple heterojunction; Water splitting
|
| E-Mail |
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