【摘要】 以钨酸钠（Na₂WO₄·2H₂O）为原料，草酸铵[（NH₄）₂C₂O₄·H₂O]为辅助剂，采用水热法在FTO导电玻璃上制备WO₃纳米块薄膜.在此基础上，以五水合硝酸铋为原料，乙醇和乙二醇为溶剂，采用水热法在WO₃薄膜上制备Bi₂O₃.通过X射线衍射和扫描电子显微镜等对薄膜材料进行表征，并对其光电性能进行测试.研究Bi₂O₃的含量对薄膜材料光电化学活性的影响，结果显示当Bi₂O₃含量为50%时WO₃/Bi₂O₃复合材料具有最好的光电化学活性.更多还原

【Abstract】 WO₃ nanoblock films were prepared on FTO conductive glass by hydrothermal method with sodium tungstate（Na₂WO₄·2 H₂O） as raw material and ammonium oxalate [（NH₄）₂C₂O₄·H₂O] as auxiliary agent. On this basis, Bi₂O₃ was also prepared by hydrothermal method on FTO substrate with WO₃ material, using bismuth nitrate pentahydrate as raw material, ethanol and glycol as solvent. The thin films were characterized by X-ray diffraction and scanning electron microscopy. Electrochemical workstation was used to test the photoelectrochemical activity of the materials in detail. The results show that 50%WO₃/Bi₂O₃ composite has higher photoelectrochemical activity.更多还原