Fe_2O_3/TiO_2异质结的制备及光催化降解性能

Synthesis and photocatalytic degradation property of Fe_2O_3/TiO_2 heterojunction

结合静电纺丝技术和水热法制备Fe_2O_3/TiO_2异质结光催化材料.利用扫描电镜(SEM)、X射线衍射(XRD)、傅立叶转换红外光谱(FT-IR)及比表面分析等方法,对Fe_2O_3/TiO_2异质结的形貌、晶型、化学组成等进行表征.利用Fe_2O_3/TiO_2材料对罗丹明B(RB)进行光催化降解,结果表明,Fe_2O_3/TiO_2对RB的降解速率高于纯TiO_2纳米纤维,而且掺铁量为0.5%时降解效果最好.

Fe_2O_3/TiO_2 heterojunction photocatalytic materials were synthesized by the combination of electrospinning technique and hydrothermal method.The morphology,crystallinity,chemical composition and other parameters of the Fe_2O_3/TiO_2 heterojunction were characterized by SEM,XRD,FT-IR and specific surface area analysis.The photocatalytic degradation of Rhodamine B(RB)by Fe_2O_3/TiO_2 material shows that the degradation rate of RB is higher than that of TiO_2 nanofibers,and the degradation effect is better when the content of iron is0.5%.