添加剂对Fe_3O_4/NiFe-LDHs生长的影响
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摘要
以Fe_3O_4为前驱体,采用溶剂热法制备了Fe_3O_4/NiFe-LDHs复合材料。利用X射线衍射仪、扫描电子显微镜、红外吸收光谱仪和交变梯度磁强计研究了添加剂的种类和用量对复合材料结构、形貌、结晶性等的影响。实验结果表明:添加剂离子与铁离子的络合能力影响Fe_3O_4/NiFeLDHs的生长;添加适量络合能力强的柠檬酸三钠可促进单一Fe_3O_4/NiFe-LDHs复合材料的生成;添加络合能力弱的酒石酸钾钠,易生成杂质相Ni(OH)_2。制备得到的Fe_3O_4/NiFe-LDHs复合材料均为顺磁性。
Fe_3O_4/NiFe-LDHs composites were prepared using Fe_3O_4 as the precursor by the solvothermal method. The structure,morphology,crystallinity and magnetic property of Fe_3O_4/NiFe-LDHs were characterized using X ray powder diffraction,scanning electron microscopy,infrared absorption spectroscopy and alternating gradient magnetometer. The experimental results show that the binding force between iron ion and the additive affected the growth of Fe_3O_4/NiFe-LDHs composites. Adding proper amount of trisodium citrate with strong complexing ability can promote the formation of a single Fe_3O_4/NiFe-LDHs composite. When potassium sodium tartrate with weak complexing ability is added,impurity phase Ni( OH)_2 tend to form. The Fe_3O_4/NiFe-LDHs composites are paramagnetic.
Fe_3O_4/NiFe-LDHs composites were prepared using Fe_3O_4 as the precursor by the solvothermal method. The structure,morphology,crystallinity and magnetic property of Fe_3O_4/NiFe-LDHs were characterized using X ray powder diffraction,scanning electron microscopy,infrared absorption spectroscopy and alternating gradient magnetometer. The experimental results show that the binding force between iron ion and the additive affected the growth of Fe_3O_4/NiFe-LDHs composites. Adding proper amount of trisodium citrate with strong complexing ability can promote the formation of a single Fe_3O_4/NiFe-LDHs composite. When potassium sodium tartrate with weak complexing ability is added,impurity phase Ni( OH)_2 tend to form. The Fe_3O_4/NiFe-LDHs composites are paramagnetic.
引文
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[14]赵远,王晓宇,刘丽娟,等. Fe3O4@胺甲基改性植物多酚磁絮凝收集能源微藻[J].复合材料报,2016,34(1):121-128.
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[17]张龙,万晓娜,段文静,等. Fe3O4@聚吡咯@聚苯胺核壳结构的制备及吸波性能[J].高等学校化学学报,2018,39(1):185-192.
[18]HAN Y F,LIU Z H,YANG Z P,et al. Preparation of Ni2+-Fe3+layered double hydroxide material with high crystallinity and well-defined hexagonal shape[J]. Chem Mater,2008,20(8):360-363.
[19]刘伟,杨健,张瑞利,等.液相还原法制备的Fe纳米颗粒-膨胀石墨电磁屏蔽材料[J].磁性材料及器件,2013,44(1):1-5.
[20]张慧,徐彦红,段雪,等.磁性纳米固体碱催化剂Mg Al-OHLDHs/Ni Fe2O4[J].化学学报,2004,62(8):750-756.
[21]ZHANG F R,DU N,ZHANG R J,et al. Mechanochemical synthesis of Fe3O4@(Mg-Al-OH LDH)magnetic composite[J]. Powder Technology,2012,228:250-253.
[2]赵英杰,范国利,李峰. LDHs/碳纳米复合材料的催化性能研究进展[J].中国科学:化学,2017,47(4):396-407.
[3]赵雅璐,欧忠文,莫金川. Ni CoFe-LDHs制备、表征及吸附性能[J].后勤工程学院学报,2017,33(1):48-55.
[4]ZHANG X F,WANG J,LI P M,et al. Preparation of Fe3O4@C@layered double hydroxide composite for magnetic separation of uranium[J]. Ind Eng Chem Res,2013,52(30):10152-10159.
[5]AZRA G M,ROUSHAN K. Facile synthesis and characterization of Fe3O4@Mg Al-LDH@STPOM nanocomposites for highly enhanced and selective degradation of methylene blue[J]. New J Chem,2017,41:9472-9481.
[6]赵满,徐洁,侯万国. Fe3O4@(TF-LDHs)纳米复合体的制备及药物缓释性能[J].高等学校化学学报,2012,33(7):1572-1578.
[7]TANG J,MU B,ZONG L,et al. One-step synthesis of magnetic attapulgite/carbon supported Ni Fe-LDHs by hydrothermal process of spent bleaching earth for pollutants removal[J]. J Clean prod,2018,172:673-685.
[8]MUKARRAM Z,NABEEL J,ARSALAN K,et al. Starch-NiFe-layered double hydroxide composites:efficient removal of methyl orange from aqueous phase[J]. J MOL LIQ,2018,249:254-264.
[9]AI L,ZHANG C,MENG L. et al. Adsorption of methyl orange from aqueous solution on hydrothermal synthesized Mg-Al layered double hydroxide[J]. Chem. Eng. 2011,56:4217-4225.
[10]LI W,XIA Q W,FU J J,et al. Facile synthesis of Ni Al layered double hydroxide nanoplates for high-performance asymmetric supercapacitor[J]. J Alloy Compd,2017,721:803-812.
[11]LI X Y,YU L,WANG G L,at al. Hierarchical Ni Al LDH nanotubes constructed via atomic layer deposition assisted method for high performance supercapacitors[J]. Electrochim Acta,2017,255:15-22.
[12]张杰,胡登华.磁性纳米Fe3O4粒子的制备与应用[J].武汉工程大学学报,2011,33(10):4-8.
[13]潘卉,曹刘琴,赵甜,等.乙二醇表面改性纳米二氧化钛的制备及其对水性聚氨酯的改性[J].化学研究,2014,25(5):509-515.
[14]赵远,王晓宇,刘丽娟,等. Fe3O4@胺甲基改性植物多酚磁絮凝收集能源微藻[J].复合材料报,2016,34(1):121-128.
[15]王卫伟,许英伟,杜健,等. Fe3O4/LDHs复合结构的制备及吸附性能研究[J].人工晶体学报,2015,44(1):204-209.
[16]WANG H,LIU X Y,WU Y,et al. Microwave-assisted synthesis of ethylene glycol-intercalated Ni Al LDHs and their application for intracrystalline catalytic esterification with naphthenic acids in crude oil[J]. Energy Fuels,2017,31(9):9898-9904.
[17]张龙,万晓娜,段文静,等. Fe3O4@聚吡咯@聚苯胺核壳结构的制备及吸波性能[J].高等学校化学学报,2018,39(1):185-192.
[18]HAN Y F,LIU Z H,YANG Z P,et al. Preparation of Ni2+-Fe3+layered double hydroxide material with high crystallinity and well-defined hexagonal shape[J]. Chem Mater,2008,20(8):360-363.
[19]刘伟,杨健,张瑞利,等.液相还原法制备的Fe纳米颗粒-膨胀石墨电磁屏蔽材料[J].磁性材料及器件,2013,44(1):1-5.
[20]张慧,徐彦红,段雪,等.磁性纳米固体碱催化剂Mg Al-OHLDHs/Ni Fe2O4[J].化学学报,2004,62(8):750-756.
[21]ZHANG F R,DU N,ZHANG R J,et al. Mechanochemical synthesis of Fe3O4@(Mg-Al-OH LDH)magnetic composite[J]. Powder Technology,2012,228:250-253.