功能性磁性纳米复合材料的制备及应用
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摘要
采用水热法制备了Fe3O4磁性纳米微球,进而用腐殖酸(HA)修饰,成功制备了功能性磁性纳米复合材料(Fe3O4-HA)。并通过紫外可见分光光度计对含有有机染料亚甲基蓝(MB)废水中Fe3O4-HA磁性纳米复合材料的吸附行为进行研究。Fe3O4-HA磁性纳米复合材料的结构和性能用透射电子显微镜、光学接触角测量仪、傅立叶变换红外光谱、X射线衍射仪、振动样品磁强计等手段进行表征。结果表明:Fe3O4-HA磁性纳米复合材料结构均匀,平均粒径约为300 nm,饱和磁化强度为75.3 emu/g。Fe3O4-HA磁性纳米复合材料具有良好的超顺磁性,较高的吸附效率和可重复使用性。
Functional magnetic nanocomposite( Fe3O4-HA) was successfully prepared by hydrothermal method,and then coated by humic acid( HA). Adsorption behavior of the Fe3O4-HA to wastewater containing organic dye methylene blue( MB) was studied by ultraviolet and visible spectrophotometer. The structure and property of the Fe3O4-HA were characterized by transmission electron microscopy,optical contact angle,fourier transform infrared spectroscopy,X ray diffractometer,vibrating sample magnetometer. The results demonstrate that Fe3O4-HA has a homogeneous structure,and its average particles size is about 300 nm and the saturation magnetization is 75. 3 emu / g. This synthetic Fe3O4-HA nanocomposite has good superparamagnetism,high adsorption efficiency and reusability.
Functional magnetic nanocomposite( Fe3O4-HA) was successfully prepared by hydrothermal method,and then coated by humic acid( HA). Adsorption behavior of the Fe3O4-HA to wastewater containing organic dye methylene blue( MB) was studied by ultraviolet and visible spectrophotometer. The structure and property of the Fe3O4-HA were characterized by transmission electron microscopy,optical contact angle,fourier transform infrared spectroscopy,X ray diffractometer,vibrating sample magnetometer. The results demonstrate that Fe3O4-HA has a homogeneous structure,and its average particles size is about 300 nm and the saturation magnetization is 75. 3 emu / g. This synthetic Fe3O4-HA nanocomposite has good superparamagnetism,high adsorption efficiency and reusability.
引文
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[2]Lu Junfeng,Zhang Hao,Lu Wenqiang.A computational design of a magnetic field applied to control magnetic adsorbent used in liquid/gas adsorption processes[J].International Communications in Heat and Mass Transfer,2014,53(3):18-25.
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[4]Traversa A,Dorazio V,Mezzapesa G N,et al.Chemical and spectroscopic characteristics of humic acids and dissolved organic matter along two alfisol profiles[J].Chemosphere,2014,111(1):184-194.
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[6]Do Nascimento F H,Masini J C.Influence of humic acid on adsorption of Hg(II)by vermiculite[J].Journal of Environmental Management,2014,143(3):1-7.
[7]Baigorri Roberto,Fuentes Marta,Gonza lez-Gaiano Gustavo,et al.Complementary multianalytical approach to study the distinctive structural features of the main humic fractions in solution:Gray humic acid,brown humic acid,and fulvic acid[J].Agricultural and Food Chemiry,2009,57(8):3266-3272.
[8]Filipe O M S,Vidal Manyalich,Marti Duarte Armando C,et al.Adsorption-desorption behavior of thiram onto humic acid[J].Agricultural and Food Chemiry,2009,57(11):4906-4912.
[9]Jiang Li,Zhu Jun,Wang Hui,et al.Sorption of humic acid on Fe oxides,bacteria,and Fe oxide-bacteria composites[J].J Soils Sediments,2014,14(8):1378-1384.
[10]Thuyavan Y Lukka,Anantharaman N,Arthanareeswaran G,et al.Adsorptive removal of humic acid by zirconia embedded in a poly(ether sulfone)membrane[J].Industrial&Engineering Chemistry Research,2014,53(28):11355-11364.
[11]Reddy B V Subba,Reddy S Gopal,Reddy M Ramana,et al.Aminol initiated prins cyclization for the synthesis of octahydro-1Hpyrano[3,4-c]pyridine and hexahydro-1H-furo[3,4-c]pyrrole derivatives[J].Tetrahedron Letters,2014,55(34):4917-4921.
[12]Mansur Alexandra A P,Mansur Herman S,Fábio P,et al.“Green”colloidal Zn S quantum dots/chitosan nano-photocatalysts foradvanced oxidation processes:Study of the photodegradation of organic dye pollutants.ramanerya[J].Applied Catalysis B:Environmental,2014,158/159(4):269-279.
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[15]Zhang Xian,Zhang Panyue,Wu Zhen,et al.Adsorption of methylene blue onto humic acid-coated Fe3O4nanoparticles[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2013,435(S1):85-90.
[16]Yang Shitong,Zong Pengfei,Ren Xuemei,et al.Rapid and highly efficient preconcentration of Eu(III)by core-shell structured Fe3O4@humic acid magnetic nanoparticles[J].Applied Materials Interfaces,2012,12(4):6891-6900.
[17]Liu Jingfu,Zao Zongshan,Jiang Guibin,et al.Coating Fe3O4magnetic nanoparticles with humic acid for high efficient removal of heavy metals in water[J].Environ Sci Technol,2008,42(18):6949-6954.
[18]Wang Gongzheng,Zhang Ying,Fang Yu,et al.Flower-like Si O2-coated polymer/Fe3O4composite microspheres of super-paramagnetic properties:Preparation via a polymeric microgel template method[J].The American Ceramic Society,2007,90(7):2067-2072.
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[20]Fang Yu,Bai Chaoliang,Zhang Ying.Preparation of metal sulfide-polymer composite microspheres with patterned surface structures[J].Chemical Communications,2004(7):804-805.
[21]贺亚妮,徐晓荣,闫晓敏,等.表面可修饰的荧光复合微球的制备及表征[J].复合材料学报,2011,28(3):27-34.
[22]张礼松,王公正,莫润阳,等.Fe3O4@Si O2@Cd Te磁性荧光复合微球的制备与表征[J].光子学报,2014,43(1):20-23.
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