【摘要】 采用水热法合成具有高效催化活性的单斜白钨矿型BiVO₄,再通过向其掺杂CuO生成复合光催化材料CuO/BiVO₄。借助X射线衍射仪（XRD）、扫描电子显微镜（SEM）、紫外漫反射（UV-Vis）等手段对产品进行表征。以亚甲基蓝作为降解物,研究了所制备样品的可见光催化活性。结果表明,当CuO的掺杂量为2wt%时,光照120 min,CuO/BiVO₄对亚甲基蓝的光催化降解率达到96.4%,比纯BiVO₄光催化剂降解率提高了16.1%。而且复合光催化剂具有良好的重复利用率。更多还原

【Abstract】 The monoclinic scheerite BiVO₄ with high catalytic activity was synthesized by hydrothermal method, and CuO was doped into it to generate CuO/BiVO₄ composite photocatalytic material. The products were characterized by X-ray diffractometer（XRD）, scanning electron microscope（SEM） and ultraviolet diffuse reflection（UV-VIS）. With methylene blue as degraded substance, the visible light catalytic activity of the sample was analyzed. The results showed that when the dopant, amount of CuO was 2 wt%, in 120 min of light, the photocatalytic degradation rate of CuO/BiVO₄ to methylene blue reached 96.4%, which was 16.1% higher than that of pure BiVO₄ photocatalyst. Moreover, the composite photocatalyst had good reuse efficiency.更多还原