摘要氧化石墨烯由于其优越的性能而被广泛研究,本文采用水热法制备CuFe2O4/GO复合材料,通过TEM、EDS、XRD、XPS和FT-IR等对CuFe2O4/GO复合材料的性质进行了表征分析,并对CuFe2O4/GO复合材料催化降解AO7和罗丹明B的催化性能以及催化机制进行了研究。研究结果表明,CuFe2O4/GO复合材料对AO7有很好的催化活性,在有光条件下降解AO7的脱除率远远高于无光条件,在一定范围内,CuFe2O4/GO复合材料对AO7的脱除率随着催化剂加入量的增加而线性增加,pH值的改变对催化过程影响不大,GO在催化剂降解有机染料过程中起着重要的媒介作用。CuFe2O4/GO复合材料催化降解AO7的过程中主要的活性成分是•O2-和h+。此外,CuFe2O4/GO复合材料对罗丹明B和丽春红2R也有很好的降解效果。CuFe2O4/GO复合材料经过四次重复反应后依然保持很高的稳定性。28958
关键词 CuFe2O4/GO复合材料 光催化 反应过程 AO7
毕业论文设计说明书外文摘要
Title Preparation and photocatalytic properties of MFe2O4/GO hybrids
Abstract
Graphene oxide was widely studied because of their superior performance, CuFe2O4/GO hybrids was prepared by hydrothermal synthesis method, The surface morphology and structure of the CuFe2O4/GO hybrids were characterized by TEM, EDS, XRD, XPS and FT-IR.The catalytic performance of CuFe2O4/GO on AO7 and Rhodamine B was studied. The results showed that, CuFe2O4/GO hybrids on AO7 has a good of catalytic performance.Degradation in light of AO7 is higher than in conditions without light. Within a certain range,the degradation of AO7 increases linearly with the amount of catalyst . The pH has little effect on the catalytic process. GO plays an important role in the process. The main active components of CuFe2O4/GO hybrids are•O2-和h+. In addition,Cufe2o4/GO hybrids also had a good degradation effect to Rhodamine B and ponceau 2R.CuFe2O4/GO hybrids exhibited stable performance without losing activity after three successive runs.
Keywords CuFe2O4/GO hybrids Photocatalysis Reaction process AO7
目 次
1 绪论1
1.1 氧化石墨烯(GO)1
1.1.1 氧化石墨烯简介1
1.1.2 氧化石墨烯的制备方法2
1.1.3 氧化石墨烯的结构和性质3
1.2 光催化废水处理技术4
1.2.1 废水处理现状及特点5
1.2.2 光催化技术简介5
1.2.3 影响光催化反应的因素6
1.3 本课题选题依据和主要研究内容7
2 实验部分8
2.1 实验材料8
2.1.1 主要试剂8
2.1.2 主要仪器9 2.2 催化剂的制备9
2.3 表征分析方法10
2.3.1 X射线衍射(XRD)10
2.3.2 透射电子显微镜(TEM)11
2.3.3 扫描电镜(SEM)与EDS能谱11
2.3.4 红外(FT-IR)11
2.3.5 电子能谱(XPS)11
2.4 光催化活性评价 11
2.4.1 光催化降解AO711
2.4.2 光催化降解RhB12
3 CuFe2O4/GO复合材料的性质13
3.1 CuFe2O4/GO的XRD分析13
3.2 CuFe2O4/GO的形貌分析14
3.3 CuFe2O4/GO的EDS分析16
3.4 CuFe2O4/GO的FT-IR分析16
3.5 CuFe2O4/GO的XPS分析17
4 CuFe2O4/GO复合材料催化降解有机染料19
4.1 CuFe2O4/GO复合材料催化降解AO719
4.2 CuFe2O4/GO复合材料降解罗丹明B和丽春红2R21 MFe2O4/GO复合材料制备及光催化性质研究:http://www.751com.cn/huaxue/lunwen_24015.html