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Au@TiO2–CdS ternary nanostructures for efficient visible-light-driven hydrogen generation

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Au@TiO2–CdS ternary nanostructures for efficient visible-light-driven hydrogen generation
นักวิจัย : Fang, Jun , Xu, Lin , Zhang, Zhenyi , Yuan, Yu-Peng , Cao, Shao-Wen , Wang, Zheng , Yin, Li-Sha , Liao, Yusen , Xue, Can
คำค้น : DRNTU::Engineering::Materials::Nanostructured materials
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2556
อ้างอิง : Fang, J., Xu, L., Zhang, Z., Yuan, Y.-P., Cao, S.-W., Wang, Z., et al. (2013). Au@TiO2–CdS ternary nanostructures for efficient visible-light-driven hydrogen generation. ACS applied materials & interfaces, 5(16), 8088-8092. , http://hdl.handle.net/10220/17593 , http://dx.doi.org/10.1021/am4021654
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : ACS applied materials & interfaces
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

We report a new type of Au@TiO2-CdS ternary nanostructures by decorating CdS nanoparticles onto Au@TiO2 core-shell structures. Comparing to the binary structures, such as CdS-TiO2 and Au@TiO2, these ternary nanostructures exhibit remarkably high photocatalytic H2 generation rate under visible-light irradiation. The enhanced photocatalytic activity is attributed to the unique ternary design, which builds up a transfer path for the photoexcited electrons of CdS to the core Au particles via the TiO2 nanocrystal bridge, and thus effectively suppressed the electron-hole recombination on the CdS photocatalyst. This internal electron transfer pathway (CdS→TiO2→Au) eliminates the needs of post-deposition of metal co-catalyst since the core Au nanoparticle can act as the interior active catalyst for proton reduction towards hydrogen evolution. We believe that our work demonstrates a promising way for rational design of metal-semiconductor hybrid photocatalysts to achieve high photocatalytic efficiency for solar fuels production.

NRF (Natl Research Foundation, S’pore)

MOE (Min. of Education, S’pore)

บรรณานุกรม :
Fang, Jun , Xu, Lin , Zhang, Zhenyi , Yuan, Yu-Peng , Cao, Shao-Wen , Wang, Zheng , Yin, Li-Sha , Liao, Yusen , Xue, Can . (2556). Au@TiO2–CdS ternary nanostructures for efficient visible-light-driven hydrogen generation.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Fang, Jun , Xu, Lin , Zhang, Zhenyi , Yuan, Yu-Peng , Cao, Shao-Wen , Wang, Zheng , Yin, Li-Sha , Liao, Yusen , Xue, Can . 2556. "Au@TiO2–CdS ternary nanostructures for efficient visible-light-driven hydrogen generation".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Fang, Jun , Xu, Lin , Zhang, Zhenyi , Yuan, Yu-Peng , Cao, Shao-Wen , Wang, Zheng , Yin, Li-Sha , Liao, Yusen , Xue, Can . "Au@TiO2–CdS ternary nanostructures for efficient visible-light-driven hydrogen generation."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2556. Print.
Fang, Jun , Xu, Lin , Zhang, Zhenyi , Yuan, Yu-Peng , Cao, Shao-Wen , Wang, Zheng , Yin, Li-Sha , Liao, Yusen , Xue, Can . Au@TiO2–CdS ternary nanostructures for efficient visible-light-driven hydrogen generation. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2556.