摘要：本文用水热法制备了氧化石墨烯含量分别为0。05、0。10、0。15、0。20、0。25、0。30的Ni0。2Mn0。8Fe2O4-GO复合材料，并采用XRD、BET、傅里叶红外光谱分析和紫外漫反射对不同复合材料进行表征。通过降解亚甲基蓝溶液对其催化活性进行测试，采用循环伏安、交流阻抗和计时电位对其电化学性能进行测试。结果表明，通过水热法可以成功的将铁酸镍锰纳米材料负载在氧化石墨烯片层表面，在Ni0。2Mn0。8Fe2O4中适当的加入GO可以提高复合材料的光催化性能，其中当GO含量为0。20时，Ni0。2Mn0。8Fe2O4-GO（0。20）具有最高的光催化活性，对亚甲基蓝溶液的降解率达到97。69 %；在Ni0。2Mn0。8Fe2O4中加入GO对复合材料的电化学性能有很大的影响，其中当GO含量为0。30时，Ni0。2Mn0。8Fe2O4-GO（0。30）电容量达到最大值，为549。2F/g，当GO含量为0。15时，Ni0。2Mn0。8Fe2O4-GO（0。15）的功率密度达到最大值，为2。334W/g79083

毕业论文关键词：氧化石墨烯，磁性尖晶石型铁氧体，光催化剂，电化学性能

Abstract：Ni0。2Mn0。8Fe2O4-GO composite materials was synthesized by hydrothermal method and the percentage of GO in the composites was adjusted to 0。05,0。10,0。15,0。20,0。25,0。30。 The composite materials were characterized by XRD, BET, FT-IR and UV-Vis methods 。 Methylene blue was chosen as the model system to test its photocatalytic activity。 The electrochemical properties of Ni0。2Mn0。8Fe2O4-GO composites were tested by cyclic voltammetry, galvanostatic charge-discharge test and AC impedance method。 The results showed that Ni0。2Mn0。8Fe2O4 can be successfully combined on the surface of GO by hydrothermal method。 Adding appropriate amount of GO in the Ni0。2Mn0。8Fe2O4 was benefit to improve the photocatalytic properties of composite materials。 It can be seen that when the content of GO was adjusted to 0。20, Ni0。2Mn0。8Fe2O4-GO (0。20) has the highest photocatalytic activity and the degradation rate of methylene blue ratio reached to 97。69%。Adding GO to Ni0。2Mn0。8Fe2O4 had a great influence on electrochemical properties of composite materials 。 When the content of GO was adjusted to 0。30 , Ni0。2Mn0。8Fe2O4-GO(0。30) presents the maximum capacity of 549。2F / g。 When the content of GO was changed to 0。15, Ni0。2Mn0。8Fe2O4-GO (0。15) shows the highest power density (2。334W / g)

Key word: Graphene oxide,  nickel-manganese ferrite, photocatalyst，electrochemical properties, 

目录

1 绪论 1

2。实验部分：铁酸镍锰-氧化石墨烯的制备及其性能研究 1

2。1 铁酸锰镍-氧化石墨烯的制备及其性能研究 1

2。1。1实验试剂 2

2。1。2 测试仪器 2

2。1。3 铁酸镍锰-氧化石墨烯多功能异质结的制备 2

2。2 材料性能检测和分析 3

2。3可见光催化活性测试 3

2。4电极的制备 3

2。5  电化学测试 4

3。结果与讨论 4

3。1铁酸锌-氧化石墨烯的结构与形貌 4

3。1。1铁酸锰镍-氧化石墨烯的结构与形貌 4

3。1。2 BET 5

3。1。3红外光谱 6

3。1。4紫外漫反射