采用水热法、柠檬酸络合法、模板水热法和固相法合成了不同形貌的BiVO4。利用X-射线粉末衍射、扫描电子显微镜、透射电子显微镜及紫外-可见漫反射吸收光谱等手段对产物进行分析表征。将制备的4种样品进行光催化降解亚甲基蓝实验对比，研究用模板水热法制备的产物在外加H2O2条件下的光催化性能。结果表明：4种方法合成的产物均为单相单斜，形貌有纳米片、微米球等；模板水热法制备的BiVO4光催化活性最高，外加H2O2可以显著提高BiVO4的光催化活性。
BiVO4 with different morphologies was prepared by hydrothermal method,citric acid complex method,template hydrothermal method,and solid ? state method. X ? ray diffraction,scanning electron microscope,transmission electron microscope and UV?Vis diffusion reflectance spectra were used to characterize the as?synthesized BiVO4. The photocatalytic properties of the BiVO4 prepared by four methods were compared by photodegradating methylene blue. The photocatalytic properties of the BiVO4 prepared by template hydrothermal method were measured using H2O2 as a cocatalyst. Results show that the as?prepared products of the four methods are of single phase and monoclinic with shapes of nanoplates and micron balls,the BiVO4 prepared by template hydrothermal method has the highest photocatalytic properties,and the photocatalytic properties are greatly improved when using H2O2 as a cocatalyst.
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