Ag3PO4修饰BiOI纳米微球的制备及其光催化降解性能
朱敏 , 陈兴裕 , 彭晓涵 , 许雅旭 , 黄晓晨 , 苟永博 , 徐丹 , 朱禹
现代化工 ›› 2025, Vol. 45 ›› Issue (6) : 141 -147.
Ag3PO4修饰BiOI纳米微球的制备及其光催化降解性能
Preparation of Ag3PO4 modified BiOI nanospheres and study on their photocatalytic degradation performance
以溶剂热法合成花瓣状BiOI纳米微球,在其表面负载纳米Ag3PO4,构筑BiOI/Ag3PO4二元复合材料。通过光催化降解实验确认最佳复合比例。通过XRD、SEM、HRTEM、XPS和固体紫外等表征材料的结构和组成,同时研究其光催化降解罗丹明B性能,探究不同质量浓度光催化材料、不同离子强度下降解性能的差异。结果表明,当BiOI与Ag3PO4理论质量比为1∶3时,复合材料的光催化效果最优,质量浓度为0.6 g/L时对罗丹明B的去除率达98%,并在离子干扰下保持较高的光催化活性。活性自由基捕集实验表明,降解罗丹明B的主要活性物质为·$\text{O}_{2}^{-}$。
Petal-like bismuth iodide oxide (BiOI) nanospheres are synthesized via solvothermal method,and loaded with silver phosphate (Ag3PO4) on their surface to prepare BiOI/Ag3PO4 binary composite materials.The optimal composite ratio is confirmed through photocatalytic degradation experiment.The structure and composition of the composite materials are characterized through XRD,SEM,HRTEM,XPS,and solid ultraviolet spectroscopy,and their photocatalytic degradation performance for Rhodamine B is studied.The performance of the composite materials with different mass concentrations and ion strengths are explored in the degradation of Rhodamine B.It is shown that the composite material with a BiOI to Ag3PO4 theoretical mass ratio of 1∶3 exhibits the best photocatalytic effect,delivering a removal rate of 98% for Rhodamine B when the dosage of the composite material is 0.6 g/L.It also maintains high photocatalytic activity under ion interference.The experiment for capturing active free radicals shows that ·$\text{O}_{2}^{-}$ active free radical is the main active substance for degrading Rhodamine B,and its photocatalytic degradation mechanism is analyzed.
BiOI / 罗丹明B / 光催化 / 纳米材料 / Ag3PO4
BiOI / Rhodamine B / photocatalysis / nanomaterial / Ag3PO4
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江苏省自然科学基金(BK20190245)
江苏高校青蓝工程项目
泰州市科技支撑计划(农业)项目(TN202122/SYN20210010)
泰州学院高层次人才项目(QD2016006)
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