Effect of ultrasonic treatment on dispersibility of Fe3O4 nanoparticles and synthesis of multi-core Fe3O4/SiO2 core/shell nanoparticles

被引：95
|
作者：
Yang, CQ [1 ]
Wang, G [1 ]
Lu, ZY [1 ]
Sun, J [1 ]
Zhuang, JQ [1 ]
Yang, WS [1 ]
机构：
[1] Jilin Univ, Coll Chem, Alan G MacDiarmid Lab, Changchun 130012, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2005年 / 15卷 / 39期
关键词：
D O I：
10.1039/b505018a
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ultrasonic treatment was employed to improve the dispersibility of the Fe3O4 nanoparticles dispersed in aqueous solutions. Electrophoresis and XPS spectra indicate that the ultrasonic treatment can induce the generation of chemisorbed hydroxyl groups and the oxidation of Fe2+ ions on the surface of the magnetic nanoparticles, thus resulting in improved dispersibility of the magnetic nanoparticles. After growth of silica protection layers on the Fe3O4 nanoparticles with different times of ultrasonic treatment, Fe3O4/SiO2 core/shell nanoparticles with different amounts of the magnetic cores were successfully prepared.
引用
收藏
页码：4252 / 4257
页数：6
相关论文
共 50 条
  • [1] Preparation of surface plasmon resonance biosensor based on magnetic core/shell Fe3O4/SiO2 and Fe3O4/Ag/SiO2 nanoparticles
    Wang, Liying
    Sun, Ying
    Wang, Jing
    Wang, Jian
    Yu, Aimin
    Zhang, Hanqi
    Song, Daqian
    [J]. COLLOIDS AND SURFACES B-BIOINTERFACES, 2011, 84 (02) : 484 - 490
  • [2] Preparation of Fe3O4/SiO2 Core/Shell Nanoparticles with Ultrathin Silica Layer
    Jang, Eue-Soon
    [J]. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE, 2012, 56 (04): : 478 - 483
  • [3] Fe3O4 nanoparticles and Fe3O4 @SiO2 core-shell: synthesize, structural, morphological, linear, and nonlinear optical properties
    Khalid, A.
    Ahmed, R. M.
    Taha, Mohamed
    Soliman, T. S.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 947
  • [4] Bimagnetic core/shell FePt/Fe3O4 nanoparticles
    Zeng, H
    Li, J
    Wang, ZL
    Liu, JP
    Sun, SH
    [J]. NANO LETTERS, 2004, 4 (01) : 187 - 190
  • [5] Interparticle interactions of FePt core and Fe3O4 shell in FePt/Fe3O4 magnetic nanoparticles
    Akbari, Hossein
    Zeynali, Hossein
    Bakhshayeshi, Ali
    [J]. PHYSICS LETTERS A, 2016, 380 (7-8) : 927 - 936
  • [6] Synthesis, characterisation, and evaluation of core-shell Fe3O4/SiO2/polypyrrole composite nanoparticles
    Li, Bei
    Qiao, Yongsheng
    An, Jinhui
    Shen, Lazhen
    Ma, Qi
    Guo, Yong
    [J]. MICRO & NANO LETTERS, 2018, 13 (07): : 902 - 906
  • [7] Effects of the concentration of tetramethylammonium hydroxide peptizer on the synthesis of Fe3O4/SiO2 core/shell nanoparticles
    Lu, ZY
    Wang, G
    Zhuang, JQ
    Yang, WS
    [J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2006, 278 (1-3) : 140 - 143
  • [8] Synthesis and Characterization of Hybrid Core-Shell Fe3O4/SiO2 Nanoparticles for Biomedical Applications
    Zelepukin, I. V.
    Shipunova, V. O.
    Mirkasymov, A. B.
    Nikitin, P. I.
    Nikitin, M. P.
    Deyev, S. M.
    [J]. ACTA NATURAE, 2017, 9 (04): : 58 - 65
  • [9] Hysteresis Characteristics of Interacting Fe/Fe3O4 Core/Shell Nanoparticles
    Anisimov, Sergei
    Afremov, Leonid
    Iliushin, Iliac
    [J]. PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON MODELLING, IDENTIFICATION AND CONTROL, 2015, 119 : 171 - 173
  • [10] Interphase synthesis of Fe3O4/CdS core-shell nanoparticles
    Semenova, E. M.
    Vorobyova, S. A.
    Lesnikovich, A. I.
    [J]. OPTICAL MATERIALS, 2011, 34 (01) : 99 - 102
12345