标题:Continual injection of photoinduced electrons stabilizing surface plasmon resonance of non-elemental-metal plasmonic photocatalyst CdS/WO3-x for efficient hydrogen generation
作者:Lou, Zaizhu; Zhu, Mingshan; Yang, Xianguang; Zhang, Yao; Whangbo, Myung-Hwan; Li, Baojun; Huang, Baibiao
作者机构:[Lou, Zaizhu; Zhu, Mingshan; Yang, Xianguang; Zhang, Yao; Li, Baojun] Jinan Univ, Guangdong Prov Key Lab Opt Fiber Sensing & Commun, Inst Nanophoton, 更多
通讯作者:Li, BJ;Huang, BB
通讯作者地址:[Li, BJ]Jinan Univ, Guangdong Prov Key Lab Opt Fiber Sensing & Commun, Inst Nanophoton, Guangzhou 511443, Guangdong, Peoples R China;[Huang, BB]Shando 更多
来源:APPLIED CATALYSIS B-ENVIRONMENTAL
出版年:2018
卷:226
页码:10-15
DOI:10.1016/j.apcatb.2017.12.023
关键词:Non-elemental-metal plasmonic material; Surface plasmon resonance;; Electron injection; Photocatalysis; Hydrogen generation
摘要:To remedy the instability problem of the non-elemental-metal (NEM) plasmonic photocatalyst WO3-x in aqueous solution, a novel strategy of photoinduced electron injection was applied to construct CdS/WO3-x hetereostructures by growing WO3-x on semiconductor CdS nanowires. Under visible/near-infrared light irradiation, the NEM plasmonic CdS/WO3-x nanowires are highly stable and exhibit a much higher activity (1.60 mmol g(-1) h(-1)) than do plasmonic WO3-x (negligible amount) and semiconductor CdS (0.53 mmol g(-1) h(-1)) in hydrogen generation. Wavelength dependent photocatalytic performance and Single-particle PL study demonstrate that photo-excited electrons on CdS continually inject into conduction band of WO3-x, so that the surface plasmon resonance (SPR) of the NEM plasmonic photocatalyst WO3-x is sustained while hot electrons generated by the SPR excitation are consumed for hydrogen generation.
收录类别:SCIE
WOS核心被引频次:4
资源类型:期刊论文
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