REDUCED GRAPHENE OXIDE/CU2O/TIO2 NANOTUBE ARRAYS P-N HETEROSTRUCTURE PREPARED BY ELECTROCHEMICAL MET

来源 :10th IUPAC International Conference on Novel Materials and t | 被引量 : 0次 | 上传用户：peibinggu123

【摘要】

：

【作者】

：

F.LI L.ZHANG S.G.XU Y.L.LIU S.K.CAO

【机构】

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School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China

【出处】

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10th IUPAC International Conference on Novel Materials and t

【发表日期】

：

2014年3期

【关键词】

：

Cu2O Titania nanotube Reduced graphene oxide p-n heterojunction CO2 photocatalyt

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Reduced graphene oxide nanosheets(rGONs)and p-type Cu2O nanoparticles(CNPs)were deposited onto n-type TiO2 nanotube arrays(TNAs)electrode by using cycle voltammetry(CV)method in order to fabricate a novel CNPs/rGONs/TNAs p-n heterojunction photoelectrode.The synthesized photoelectrode was characterized by FE-SEM,TEM,XRD,UV-visible diffuse reflectance spectra and its photoelectrochemical properties were investigated through linear sweep voltarnmetry(LSV),transient photocurrent,electrochemical impedance spectra(EIS)and Mott-Schotcky(M-S)test.The enhanced visible light absorption was observed in CNPs/rGONs/TNAs p-n heterojunction photoelectrode.The largely improved separation of photo-induced electron and hole was revealed by photocurrent measurement.

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