摘要本论文中,采用水热法制备出的Fe-MOF为原料,通过在不同温度(500℃和600)煅烧制备出磁性多孔碳/氧化铁复合材料(C-500和C-600)。通过X射线衍射(XRD)、红外光谱(FT-IR) 、透射电镜(TEM) 、振动磁磁强计(VSM法)、接触角分析等对所获得多孔炭复合材料进行结构、形貌、磁性能及亲油疏水性能进行分析。结果表明:C-500形成以Fe3O4为核的多孔碳包覆在外棒状复合材料,BET达到300m2/g,接触角为165.68°超疏水性能;而C-600为γ-Fe2O3颗粒聚集多孔碳包覆的棒状复合材料,BET为250m2/g,接触角为152.13°超疏水性能;油水分离和染料吸附实验表明:C-500对油的吸附量为自重的28倍,对亚甲基蓝的吸附率可达94.97%;C-600吸油为21倍,亚甲基蓝的吸附率为84.33%。C-500和C-600 均有较高的磁化强度实现油水磁性分离并进行回收再利用。毕业论文关键词: MOF;多孔材料;超疏水;磁性分离;24188
Abstract
In this paper, the Fe-MOF precursor was synthesized via a solvothermal method. Then, the porous carbon composite was obtained by annealing MOF at 500℃ and 600℃ (namely C-500 and C-600) respectively. A series of analysis including XRD, FT-IR, TEM, VSM and contact angle to investigate the structure, the morphology, the magnetic and superhydrophobic property. The results indicated that C-500 specimen had the nuclear Fe3O4 and rod-like porous carbon coated, which possessed the specific surface area of 300m2/g and the contact angle 165.68° with superhydrophobic property. Meanwhile, C-600 sample was γ-Fe2O3, with the specific surface area of 250m2/g and the contact angle152.13°. Thereby, Oil removal and MB adsorption studies distinguished that The C-500 material adsorbed oil 28 times its own weight (28 w/w) and MB adsorption .94.97%, when the C-600 composite was 21w/w for oil and 84.33% for MB dye. In addition, the saturation magnetization of the C-500 and C-600 composites were strong enough for efficient magnetic separation and being recyclable
KeyWords:Metal organic framework;Porous materials;Superhydrophobic Magnetic removal;
目 录
1 绪论 1
1.1 水资源的污染 1
1.1.1水污染的种类 1
1.1.2水污染的治理方案 2
1.1.3油泄露事件影响 2
1.2 油水分离材料 3
1.2.1油水分离研究 3
1.2.2吸油材料的发展 4
1.2.3吸油材料的分类 4
1.2.4吸油材料的设备简介 6
1.2.5制约油水分离的主要因素 6
1.3 多孔碳材料在油水分离中的研究历程 7
1.3.1多孔材料发展 7
1.3.2多孔碳材料的制备方法 7
1.3.3多孔碳材料的性质简介及分类 8
1.3.4多孔碳材料在油水分离中的应用 8
1.4 金属-有机骨架材料制备多孔碳材料 8
1.4.1金属一有机骨架材料的简介 8
1.4.2金属一有机骨架材料制备方法 9
1.4.3金属-有机骨架材料制备多孔碳材料研究进展 9
1.5 选题思路 10
2 实验部分 12
2.1 实验原料及实验设备 12
2.2 实验过程 13
2.2.1Fe-MOF的合成 13
2.2.2多孔碳/氧化铁的合成 13
2.2.3油水分离实验 14
2.2.4染料吸附实验 14
2.3 分析表征 16 MOF基磁性多孔碳氧化铁复合材料的修饰及在油水分离中的应用:http://www.751com.cn/cailiao/lunwen_17579.html