C@ZnFe2O4/Ag3PO4复合材料的可见光催化性能研究

Visible light photocatalytic activity of C@ZnFe2O4/Ag3PO4 composites

以具有碳纤维原始结构的C@ZnFe2O4为前驱体材料,利用沉淀法将其与Ag3PO4进行不同比例复合制得C@ZnFe2O4/Ag3PO4三元复合物.利用XRD、FESEM、XPS、UV-VisDRS、PL等测试手段对合成样品进行表征,并测试了其可见光催化性能.结果表明,C@ZnFe2O4的引入能够显著提高Ag3PO4的光催化性能及稳定性,其中CZ-AP1样品对亚甲基蓝(MB)具有最佳的去除能力,经过4次循环测试后仍能保持85%的去除效率,这主要是由于碳纤维、ZnFe2O4和Ag3PO4三者之间的协同作用,有效增强了Ag3PO4对可见光的吸收及实现了光生电子-空穴对的有效分离.

C@ZnFe2O4 with carbon fiber original structure is used as precursor material,which is combined with Ag3PO4 by precipitation method to obtain C@ZnFe2O4/Ag3PO4 ternary composites.The synthesized samples were characterized by XRD,FESEM,XPS,UV-Vis DRS and PL.The visible light catalytic properties of samples were also tested.The results show that the introduction of C@ZnFe2O4 can significantly improve the photocatalytic performance and stability of Ag3PO4.The CZ-AP1 sample has the best removal ability for methylene blue(MB),and remains 85%removal efficiency after 4 cycling experiments.It is mainly due to the synergy among carbon fiber,ZnFe2O4 and Ag3PO4,which effectively enhances the absorption of visible light by Ag3PO4 and achieves efficient separation of photogenerated electron-hole pairs.