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题名: Direct photocatalytic hydrogen evolution from water splitting using nanostructures of hydrate organic small molecule as photocatalysts
作者: Li, Huihui1, 2; Jie, Liulun1, 2; Pan, Jiannan1, 2; Kang, Longtian1, 2; Yao, Jiannian3
刊名: JOURNAL OF MATERIALS CHEMISTRY A
发表日期: 2016
卷: 4, 期:17, 页:6577-6584
收录类别: SCI
英文摘要: Organic small molecules with a suitable energy level have usually been considered as photosensitizers rather than catalysts for photocatalytic hydrogen evolution (PHE). Herein, we achieved direct PHE using hydrate zinc tetraphenylporphyrin (ZnP, ZnTPP center dot H2O) nanostructures synthesized by a liquid-phase chemical reaction as photocatalysts. The shape-dependent photocatalysis revealed that the ZnP nanosheets (ZnP-NS) exhibit higher PHE activity (similar to 0.16 mmol g(-1) h(-1)) than the ZnP octahedron nanoparticles (ZnP-NPs) (similar to 0.06 mmol g(-1) h(-1)). After in situ construction of the rubrene/ZnP-NS heterostructure, more efficient PHE of this pure organic nanostructure was obtained due to the occurrence of photoinduced electron transfer and Forster resonance energy transfer (FRET). The optimal PHE rate is similar to 0.56 mmol g(-1) h(-1). Furthermore, with the addition of 3.0 mM methyl viologen (MV) and 3.8 wt% platinum, a PHE rate of similar to 9.3 mmol g(-1) h(-1) can be achieved at pH = 7. This study offers a new route to design organic small molecules as photocatalysts.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/36053
Appears in Collections:光化学实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Peoples R China
2.Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Prov Key Lab Nanomat, Fuzhou 350002, Fujian, Peoples R China
3.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China
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