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|
| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-126 |
| Subject |
Photocatalytic hydrogen production under visible light on cubic@hexagonal heterophase CdS nanojuntions loaded with co-catalysts |
| Authors |
Hwan Lee, TaeKyu Kim*, Amaranatha reddy, EunHwa Kim, MADHUSUDANA GOPANNAGARI, Rory Ma, Bhavani Palagiri, PRAVEEN KUMAR DHARANI, Sumin Seo1
Department of Chemistry, Pusan National University, Korea
1Chemistry, Pusan National University, Korea
|
| Abstract |
Designing noble-metal-free functional porous nanostructures for effective photocatalytic hydrogen evolution and high durability plays a significant role in future energy researches. However, There are limits such as low efficiency and photostability caused by the short recombination time of photocharge carriers. Adding electron-transporting co-catalysts can reduce the recombination rate. But normally the rate of photogenerated electrons is faster than that of photogenerated holes. This study shows that there is a successful strategy to make the photocatalytic activity improved, demonstrating co-loading of both photogenerated electron and hole-transporting co-catalysts on light absorbing semiconductor nanostructures. When it comes to CdS phase junction-based photocatalysts, However, co-loading both electron and hole-transporting co-catalysts is barely used in designing catalysts for photocatalytic hydrogen evolution reactions. In this study, we developed a noble-metal-free, highly robust photocatalytic nanohybrid 0D-2D CdS/C@CoS2 for solar-driven hydrogen production by water splitting. The nanohybrid demonstrates a high photocatalytic hydrogen production rate of 87.78 73 mmol·g–1·h–1 under sunlight irradiation. In conclusion, the results in this study may expand the potential uses of noble-metal-free nanostructures for future energy fuel production and to meet the future energy demand. |
| E-mail |
lyhyeu2@pusan.ac.kr |
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121st General Meeting of the KCS