| W掺杂和电化学表面处理制备高光电化学性能的BiVO4光阳极 |
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| 引用本文： | 万丽娟,杨明.W掺杂和电化学表面处理制备高光电化学性能的BiVO4光阳极[J].四川大学学报(自然科学版),2018,55(3):571-578. |
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| 作者姓名： | 万丽娟 杨明 |
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| 作者单位： | 南京交通职业技术学院；江苏省交通节能减排工程技术研究中心,东南大学交通学院 |
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| 基金项目： | 南京交通联业技术学院科研基金（JZ1704）; 江苏省高校自然科学研究面上项目基金(16KJD610004); 国家自然科学基金（51208102）;南京交通职业技术学院高层次人才科研启动基金 |
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| 摘 要： | 通过滴涂的方法合成了W掺杂BiVO4光阳极。通过XRD、紫外—可见吸收光谱、扫描电镜(SEM)对BiVO4光阳极进行表征，并对BiVO4光阳极进行了光电化学表征。为了提高W掺杂BiVO4光阳极的光电性能，对W掺杂BiVO4光阳极的制备条件进行了优化。光电化学测试结果表明电化学表面处理能够提高W掺杂BiVO4光阳极的光电化学性能。说明W掺杂和电化学表面处理可以增加BiVO4光阳极光电流。并进行了BiVO4光阳极光电流增加的机理分析。
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| 关 键 词： | BiVO4 W掺杂 光阳极 |
| 收稿时间： | 2017/1/4 0:00:00 |
| 修稿时间： | 2017/2/13 0:00:00 |
Synthesis of BiVO4 photoanode with improved photoelectrochemical performance by W-doping and surface electrochemical pretreatment |
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| WAN Li-Juan and YANG Ming.Synthesis of BiVO4 photoanode with improved photoelectrochemical performance by W-doping and surface electrochemical pretreatment[J].Journal of Sichuan University (Natural Science Edition),2018,55(3):571-578. |
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| Authors: | WAN Li-Juan and YANG Ming |
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| Abstract: | W-doped BiVO4 photoanode was obtained through drop-casting method. The physical and photophysical properties of the BiVO4 photoanode were investigated by X-ray diffraction (XRD), UV-vis absorption spectroscopy and scanning electron microscopy (SEM). Photo-electrochemical performance was evaluated for the W-doped BiVO4 photoanode. In terms of maximizing the photoelectrochemical performances of the W-doped BiVO4 photoanodes, the synthsis conditions were optimized. The W-doped BiVO4 photoanode exhibits improved photoelectrochemical performance after the electrochemical surface pretreatment. The photoelctrochemical response of BiVO4 photoanode can be improved by both tungsten doping and the electrochemical surface pretreatment. A possible mechanism was also proposed to explain the reason for the photocurrent enhancement. |
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| Keywords: | BiVO4 W-doped Photoanode |
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