A facile way to prepare visible light driven tin oxide based photoanode and its photoelectrochemical water splitting properties  

作　　者：TIAN MengKui PENG WenJie SHANG BaiWei TAO WenLiang 

机构地区：[1]School of Chemistry and Chemical Engineering,Guizhou University,Guiyang 550025,China [2]Oepartment of Chemical System Engineering,School of Engineering,the University of Tokyo,Tokyo 113-8656,Japan

出　　处：《Chinese Science Bulletin》2012年第32期4229-4232,共4页

基　　金：supported by the National Natural Science Foundation of China (21103028);the Key Program of Society Development of Guizhou Province (SZ (2008)3008);the Key Program of Science and Technology of Guiyang City ((2008)014);the Cultivating Project of Guizhou Province (024)

摘　　要：Visible light driven tin oxide based photoelectrodes were obtained using SnCl2·2H2O EtOH solution on FTO by dipping and with further heat treatment in air.Photoelectrochemical measurement with three electrodes configuration under visible light irradiation(λ>420 nm) revealed that this as-prepared photoelectrode showed typical n-type photocurrent effect and the onset potential is negative than that of H+/H2.XRD,UV-Vis spectrum and control experimental results revealed that the visible light driven mechanism for the tin oxide based photoanode maybe ascribed to Sn4+/Sn2+ transformation and the surface oxygen deficiency.Visible light driven tin oxide based photoelectrodes were obtained using SnCl2· 2H2O EtOH solution on FTO by dipping and with further heat treatment in air. Photoelectrochemical measurement with three electrodes configuration under visible light irradiation （2〉420 nm） revealed that this as-prepared photoelectrode showed typical n-type photocurrent effect and the onset potential is negative than that of H＋/H2. XRD, UV-Vis spectrum and control experimental results revealed that the visible light driven mechanism for the tin oxide based photoanode maybe ascribed to Sn4＋/Sn2＋ transformation and the surface oxygen deficiency.

关 键 词：光电化学 锡氧化物 光阳极 光驱动 UV-Vis吸收光谱 分解水 可见光照射 性能 

分 类 号：TQ116.2[化学工程—无机化工]