Synthesis and photocatalytic property for H-2 production of H1.78Sr0.78Bi0.22Nb2O7 nanosheets
Zhang, B (Zhang, Bing); Li, YX (Li, Yingxuan); Luo, JM (Luo, Jianmin); Zhao, H (Zhao, He); Zhao, J (Zhao, Jie); Dong, GH (Dong, Guohui); Zhu, YQ (Zhu, Yunqing); Wang, CY (Wang, Chuanyi); Li, YX
2017
发表期刊APPLIED SURFACE SCIENCE
卷号391期号:1页码:499-506
摘要The SrBi2Nb2O9 platelets with a thickness of about 600nm were synthesized by molten salt synthesis method. The treatment of the SrBi2Nb2O9 platelets with hydrochloric acid resulted in the formation of the protonated H1.78Sr0.78Bi0.22Nb2O7 platelets. Through a top-down approach in ethylamine solution, the H1.78Sr0.78Bi0.22Nb2O7 platelets were exfoliated into H1.78Sr0.78Bi0.22Nb2O7 nanosheets with a thickness of about 2.6 nm. The evolution of the structure, composition, morphology, optical, and photocatalytic properties of SrBi2Nb2O9 platelets was studied as it is converted into H1.78SR0.78Bi0.22Nb2O7 platelets and subsequently exfoliated into H1.78Sr0.78Bi0.22Nb2O7 nanosheets. The absorption edge shifts to a lower wavelength accompanied by the protonation and exfoliation. The photocatalytic H-2 evolution of the three samples were evaluated under the irradiation of a 300W Xenon lamp from CH3OH/H2O solution, indicating that H1.78Sr0.78Bi0.22Nb2O7 nanosheets Exhibit 5.5 and 26.2 times higher activity than that of the H1.78Sr0.78Bi0.22Nb2O7 and SrBi2Nb2O9 platelets, respectively. The enhanced activity for the H1.78Sr0.78Bi0.22Nb2O7 nanosheets is mainly attributed to the higher separation efficiency of the photo generated carriers and the larger specific surface area caused by the significant reduction in thickness.
关键词H1.78sr0.78bi0.22nb2o7 Nanosheet Molten Salt Synthesis Method Photocatalysis Hydrogen Evolution
DOI10.1016/j.apsusc.2016.06.143
收录类别SCI
WOS记录号WOS:000390622100043
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/4856
专题中国科学院特殊环境功能材料与器件重点试验室
通讯作者Li, YX
作者单位1.Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Xinjiang Uygur Autonomous Reg Acad Instrument Ana, Urumqi 830011, Peoples R China
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Zhang, B ,Li, YX ,Luo, JM ,et al. Synthesis and photocatalytic property for H-2 production of H1.78Sr0.78Bi0.22Nb2O7 nanosheets[J]. APPLIED SURFACE SCIENCE,2017,391(1):499-506.
APA Zhang, B .,Li, YX .,Luo, JM .,Zhao, H .,Zhao, J .,...&Li, YX.(2017).Synthesis and photocatalytic property for H-2 production of H1.78Sr0.78Bi0.22Nb2O7 nanosheets.APPLIED SURFACE SCIENCE,391(1),499-506.
MLA Zhang, B ,et al."Synthesis and photocatalytic property for H-2 production of H1.78Sr0.78Bi0.22Nb2O7 nanosheets".APPLIED SURFACE SCIENCE 391.1(2017):499-506.
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