高级搜索

改进型共沉淀法制备四氧化三铁磁粉及表征

,  ,  , 

downloadPDF

上一篇

下一篇

刘涉江, 刘帅朋, 杨宏扬, 丁辉. 改进型共沉淀法制备四氧化三铁磁粉及表征[J]. 环境工程学报, 2018, 12(2): 434-440. doi: 10.12030/j.cjee.201706245
引用本文: 刘涉江, 刘帅朋, 杨宏扬, 丁辉. 改进型共沉淀法制备四氧化三铁磁粉及表征[J]. 环境工程学报, 2018, 12(2): 434-440. doi: 10.12030/j.cjee.201706245
shu
LIU Shejiang, LIU Shuaipeng, YANG Hongyang, DING Hui. Preparation and characterization of Fe3O4 magnetic powders by modified coprecipitation method[J]. Chinese Journal of Environmental Engineering, 2018, 12(2): 434-440. doi: 10.12030/j.cjee.201706245
Citation: LIU Shejiang, LIU Shuaipeng, YANG Hongyang, DING Hui. Preparation and characterization of Fe3O4 magnetic powders by modified coprecipitation method[J]. Chinese Journal of Environmental Engineering, 2018, 12(2): 434-440. doi: 10.12030/j.cjee.201706245
shu

改进型共沉淀法制备四氧化三铁磁粉及表征

  • 1.

    天津大学环境科学与工程学院,天津 300350

  • 基金项目:

    天津市应用基础与前沿技术研究计划(重点项目)(15JCZDJC40400)

Preparation and characterization of Fe3O4 magnetic powders by modified coprecipitation method

  • 1.

    School of Environment Science and Engineering,Tianjin University,Tianjin 300350,China

  • Fund Project:

  • 摘要: 结合传统共沉淀法和沉淀氧化法的优缺点,在不需要惰性气体保护下,采用新型的改进型共沉淀法通过对酸洗废液的氧化,制备出性能相当的四氧化三铁磁粉。系统研究了反应温度、陈化温度、有机钠盐加入量、烘干温度对四氧化三铁磁粉制备过程的影响,并采用振动样品磁强计、X射线衍射、扫描电子显微镜、透射电子显微镜、马尔文激光粒度仪、全自动比表面积和孔隙分析仪对制备的样品进行表征。结果表明:在ORP=525 mV时,酸洗废液中Fe2+和Fe3+的摩尔比为1∶1.8,反应温度为50 ℃,陈化温度为90 ℃,有机钠盐加入量为0.2 g,可制备出具有较高结晶度的球型四氧化三铁粒子,比饱和磁强度可达85.951 emu·g-1,比表面积可达78.116 m2·g-1。
    Abstract: Based on the advantages and disvantages of conventional co-precipitation method and precipitation-oxidation method, a novel modified co-precipitation method was used to prepare the Fe3O4 by oxidation of pickling waste liquor without gas protection. The effect of reactive temperature, aging temperature, organic sodium salt concentration, drying temperature on formation process of Fe3O4 were systematically studied. The Fe3O4 magnetic powders were characterized by vibrating sample magnetometer, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Melvin zetasizer, automatic specific surface area and pore analyzer. The results suggest that the molar ratio of Fe2+ and Fe3+ in pickling waste liquor is 1∶1.8 under ORP of 525 mV. The optimum preparation conditions are 50 ℃ of reaction temperature, 90 ℃ of the aging temperature and 0.2 g of organic sodium salt. Under these conditions,Fe3O4 magnetic powders with higher crystallinity and spherical type can be prepared. The saturation magnetization and specific surface area are 85.951 emu·g-1 and 78.116 m2·g-1, respectively.
  • 加载中
  • [1] TOPKAYA R, KURTAN U, BAYKAL A, et al.Polymer assisted co-precipitation synthesis and characterization of polyethylene glycol (PEG)/CoFe2O4, nanocomposite[J].Journal of Inorganic and Organometallic Polymers and Materials,2013,3(3):592-598
    [2] LI Y F, JIANG R L, LIU T Y, et al.One-pot synthesis of grass-like Fe3O4, nanostructures by a novel microemulsion-assisted solvothermal method[J].Ceramics International,2014,0(1):1059-1063
    [3] LIU X W, HU Q Y, FANG Z, et al.Carboxyl enriched monodisperse porous Fe3O4 nanoparticles with extraordinary sustained-release property[J].Langmuir,2009,5(13):7244-7248
    [4] LI Z, MA Y, QI L.One-pot synthesis of CoFe-Fe3O4, nanocomposites with tunable magnetic properties and long term stability[J].Materials Research Bulletin,2013,8(9):3157-3163
    [5] HE K, XU C Y, ZHEN L, et al.Hydrothermal synthesis and characterization of single-crystalline Fe3O4, nanowires with high aspect ratio and uniformity[J].Materials Letters,2007,1(14/15):3159-3162
    [6] HONG R Y, PAN T T, LI H Z.Microwave synthesis of magnetic Fe3O4, nanoparticles used as a precursor of nanocomposites and ferrofluids[J].Journal of Magnetism & Magnetic Materials,2006,3(1):60-68
    [7] QIN Y F, QIN Z Y, LIU Y N, et al.Superparamagnetic iron oxide coated on the surface of cellulose nanospheres for the rapid removal of textile dye under mild condition[J].Applied Surface Science,2015,7:2103-2111
    [8] DEVI A, SINGHAL A, GUPTA R, et al.A study on treatment methods of spent pickling liquor generated by pickling process of steel[J].Clean Technologies and Environmental Policy, 2014,6(8):1515-1527
    [9] TANG B, SU W, WANG J, et al.Minimizing the creation of spent pickling liquors in a pickling process with high-concentration hydrochloric acid solutions: Mechanism and evaluation method[J].Journal of Environmental Management,2012,8:147-154
    [10] NEGRO C, BLANCO M A, LOPEZ-MATEOS F, et al.Free acids and chemicals recovery from stainless steel pickling baths[J].Separation Science and Technology,2001,6(7):1543-1556
    [11] XU J K, JU C X, SHENG J, et al.Synthesis and characterization of magnetic nanoparticles and its application in lipase immobilization[J].Bulletin of the Korean Chemical Society,2013,4(8):2408-2412
    [12] 张永刚,高亚男.钢铁酸洗废液中Fe3+和Fe2+的测定[J].天津工业大学学报,2008,7(4):39-40
    [13] 王文莉.粒径可控八面体Fe3O4粒子的制备及其磁性[D].大连:大连理工大学,2016
    [14] LU T, WANG J H, YIN J, et al.Surfactant effects on the microstructures of Fe3O4, nanoparticles synthesized by microemulsion method[J].Colloids & Surfaces A Physicochemical & Engineering Aspects,2013,6(35):675-683
    [15] 陈运鹏,张宝林,谢松伯,等.聚乙二醇/聚乙烯亚胺修饰的CoxFe3-xO4纳米粒子制备与表征[J].人工晶体学报,2016,5(1):58-63
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  5345
  • HTML全文浏览数:  4903
  • PDF下载数:  713
  • 施引文献:  0
出版历程
  • 刊出日期:  2018-02-08

改进型共沉淀法制备四氧化三铁磁粉及表征

  • 1. 天津大学环境科学与工程学院,天津 300350
基金项目:

天津市应用基础与前沿技术研究计划(重点项目)(15JCZDJC40400)

摘要: 结合传统共沉淀法和沉淀氧化法的优缺点,在不需要惰性气体保护下,采用新型的改进型共沉淀法通过对酸洗废液的氧化,制备出性能相当的四氧化三铁磁粉。系统研究了反应温度、陈化温度、有机钠盐加入量、烘干温度对四氧化三铁磁粉制备过程的影响,并采用振动样品磁强计、X射线衍射、扫描电子显微镜、透射电子显微镜、马尔文激光粒度仪、全自动比表面积和孔隙分析仪对制备的样品进行表征。结果表明:在ORP=525 mV时,酸洗废液中Fe2+和Fe3+的摩尔比为1∶1.8,反应温度为50 ℃,陈化温度为90 ℃,有机钠盐加入量为0.2 g,可制备出具有较高结晶度的球型四氧化三铁粒子,比饱和磁强度可达85.951 emu·g-1,比表面积可达78.116 m2·g-1。

English Abstract

参考文献 (15)

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心