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题名: Silicon Phthalocyanine Covalently Functionalized N-Doped Ultrasmall Reduced Graphene Oxide Decorated with Pt Nanoparticles for Hydrogen Evolution from Water
作者: Huang, J(黄洁); Wu, YJ; Wang, DD; Ma, YF; Yue, ZK; Lu, YT; Zhang, MX; Zhang, ZJ; Yang, P
通讯作者: Yang, P
关键词: photocatalysis ; hydrogen evolution ; N-doped ultrasmall graphene ; silicon phthalocyanine
刊名: ACS APPLIED MATERIALS & INTERFACES
发表日期: 2015
DOI: 10.1021/am508476d
卷: 7, 期:6, 页:10
收录类别: SCI
部门归属: 纳米生物医学与安全研究部
英文摘要: To improve the photocatalytic activity of graphene-based catalysts, silicon phthalocyanine (SiPc) covalently functionalized N-doped ultrasmall reduced graphene oxide (N-usRGO) has been synthesized through 1,3-dipolar cycloaddition of azomethine ylides. The obtained product (N-usRGO/SiPc) was characterized by transmission electron microscopy, atomic force microscopy, Fourier transform infrared spectroscopy, Raman spectra, X-ray photoelectron spectroscopy, fluorescence, and UVvis spectroscopy. The results demonstrate that SiPc has been successfully grafted on the surface of N-usRGO. The N-usRGO/SiPc nanocomposite exhibits high light-harvesting efficiency covering a range of wavelengths from the ultraviolet to visible light. The efficient fluorescence quenching and the enhanced photocurrent response confirm that the photoinduced electron transfers from the SiPc moiety to the N-usRGO sheet. Moreover, we chose Pt nanoparticles as cocatalyst to load on N-usRGO/SiPc sheets to obtain the optimal H-2 production effect. The platinized N-usRGO/SiPc (N-usRGO/SiPc/Pt) demonstrates good hydrogen evolution performance under both UVvis and visible light (lambda>400 nm) irradiation. The apparent quantum yields are 1.3% and 0.56% at 365 and 420 nm, respectively. These results reveal that N-usRGO/SiPc/Pt nanocomposite, consolidating the advantages of SiPc, N-usRGO, and Pt NPs, can be a potential candidate for hydrogen evolution from water under UVvis or visible light irradiation.
语种: 英语
JCR小类分区: 一区
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/3427
Appears in Collections:纳米生物医学与安全研究部_张智军团队_期刊论文

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Recommended Citation:
Huang, J,Wu, YJ,Wang, DD,et al. Silicon Phthalocyanine Covalently Functionalized N-Doped Ultrasmall Reduced Graphene Oxide Decorated with Pt Nanoparticles for Hydrogen Evolution from Water[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(6):10.
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