| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
(무기재료2) 차세대 유무기 하이브리드 촉매 연구 개발 동향 II |
| 제목 |
Enhancement of photoactivity of meatl oxide semiconductors by shape- controlled Au nanoparticles |
| 초록 |
Here, we firstly study the plasmonic effects of shape-controlled Au NPS on bismuth vanadate (BiVO4), and report a largely enhanced photoactivity of BiVO4 by introducing the octahedral Au nanoparticels (NPs). The octahedral Au NPs/BiVO4 achieved 2.4 mA/cm2 at the 1.23 V vs. reversible hydrogen electrode, which is the 3-fold enhancement compared to BiVO4. It is the highest value among the previously reported plasmonic Au NPs/BiVO4. Improved photoactivity is attributed to the localized surface plasmon resonance; direct electron transfer (DET), plasmonic resonant energy transfer (PRET). The PRET can be stressed over DET when considering the moderate band gap semiconductor. Enhanced water oxidation induced by the shape-controlled Au NPs is applicable to moderate semiconductors, and shows a systematic study to explore new efficient plasmonic solar water splitting cells. |
| 저자 |
장호원 |
| 소속 |
서울대 |
| 키워드 |
water splitting; plasmon; Au nanoparticles; plasmonic resonant energy transfer
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| E-Mail |
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