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采用静电纺丝技术合成Fe_2O_3纳米纤维,然后采用沉积沉淀法将AgBr颗粒沉积在Fe_2O_3纳米纤维上,制备了Fe_2O_3-AgBr纳米纤维光催化剂。SEM测试表明该材料纤维直径为50~100nm,TEM和XRD结果表明Fe_2O_3-AgBr是由Fe_2O_3和AgBr组成的半导体纳米纤维。同时,研究了该材料的光催化性能。结果表明:在可见光照射下,经过90min后,Fe_2O_3-AgBr纳米纤维光催化剂对罗丹明B(RhB)的降解效率达到了93.25%,且循环测试实验表明,经过4次循环后该材料仍能降解81.6%的RhB,具有较高的稳定性和回收再利用性。
Electrospinning was used to synthesize Fe_2O_3 nanofibers. AgBr particles were deposited on Fe_2O_3 nanofibers by deposition precipitation method, and Fe_2O_3-AgBr nanofiber photocatalysts were prepared. SEM test showed that the fiber diameter of the material is 50 ~ 100nm, TEM and XRD results show that Fe_2O_3-AgBr is composed of Fe_2O_3 and AgBr semiconductor nanofibers. At the same time, the photocatalytic properties of the material were studied. The results showed that the photocatalytic degradation of RhB by Fe 2 O 3 -AgBr nanofiber photocatalyst reached 93.25% after 90min irradiation under visible light irradiation. The results of cyclic test showed that the material could still degrade after 4 cycles 81.6% RhB, with high stability and recycling.