贝壳粉/BiOI复合光催化剂制备及性能研究

The preparation and photocatalytic properties of shell powder/BiOI composites under visible light irradiation

采用溶剂热法制备了不同质量百分比的贝壳粉/BiOI复合光催化剂,利用X射线衍射、扫描电镜、紫外可见漫反射光谱对其进行了表征,与此同时对其在可见光条件下光催化性能进行了测试。结果表明,贝壳粉/BiOI复合催化剂的催化性能较BiOI的催化性能显著提高,且当贝壳粉的质量百分数为3%时,复合催化剂的催化活性最高。

A series of shell powder/BiOI composite photocatalysts with different amount of shell powders have been successfully prepared via a simple solvethermal method. These shell powder/BiOI composites were systematically characterized by X-ray diffraction （XRD） , scanning electron microscopy （SEM ） ,UV- Vis diffuse reflection spectrum. The photocatalytic performances of these composites were evaluated by the degradation of RhB dye under visible light irradiation, and the results show that all the composites show significantly improved photocatalytic activites than the pure BiOI. Furthermore, the shell powder/BiOI composites with 3% of shell powder obtains the most excellent photocatalytic activity.