Synthesis of Variable-Sized Fe3O4 Nanocrystals by Visible Light Irradiation at Room Temperature

被引：44
作者：
Chen, Rufen [1 ]
Song, Guoqiang [1 ]
Wei, Yu [1 ]
机构：
[1] Hebei Normal Univ, Coll Chem & Mat Sci, Shijiazhuang 050016, Hebei, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2010年 / 114卷 / 32期
关键词：
AQUEOUS DISPERSIONS; NANOPARTICLES; PARTICLES; PHOTOOXIDATION; DEGRADATION; MECHANISM; DYE;
D O I：
10.1021/jp912162g
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：
A rational new method for the synthesis of variable-sized Fe3O4 nanoparticles by aerial oxidation of Fe(OH)(2) under visible light irradiation in the presence of trace EDTA has been investigated. The size of the Fe3O4 nanocrystals was controlled at about 11.5-30.0 nm by varying the reaction conditions in aqueous solution at room temperature. The oxidation reaction was significantly accelerated by visible light in the presence of EDTA. A rapid oxidation rate was favorable for decreasing the size of the Fe3O4 nanocrystals. The as-obtained Fe3O4 particles showed uniform spherical shape and a narrow size distribution. The variable-sized Fe3O4 nanocrystals exhibited different magnetic properties.
引用
收藏
页码：13409 / 13413
页数：5
相关论文
共 31 条
  • [1] [Anonymous], 1999, J AM CHEM SOC, V121, P3357
  • [2] Atrazine degradation in irradiated iron oxalate systems: Effects of pH and oxalate
    Balmer, ME
    Sulzberger, B
    [J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1999, 33 (14) : 2418 - 2424
  • [3] Influence of grain size, oxygen stoichiometry, and synthesis conditions on the γ-Fe2O3 vacancies ordering and lattice parameters
    Belin, T
    Guigue-Millot, N
    Caillot, T
    Aymes, D
    Niepce, JC
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 2002, 163 (02) : 459 - 465
  • [4] PHOTOOXIDATION OF HYDRATED FE-2+ - SIGNIFICANCE FOR BANDED IRON FORMATIONS
    BRATERMAN, PS
    CAIRNSSMITH, AG
    SLOPER, RW
    [J]. NATURE, 1983, 303 (5913) : 163 - 164
  • [5] Synthesis of variable-sized nanocrystals of Fe3O4 with high surface reactivity
    Caruntu, D
    Caruntu, G
    Chen, Y
    O'Connor, CJ
    Goloverda, G
    Kolesnichenko, VL
    [J]. CHEMISTRY OF MATERIALS, 2004, 16 (25) : 5527 - 5534
  • [6] Synthesis of nickel nanoparticles in water-in-oil microemulsions
    Chen, DH
    Wu, SH
    [J]. CHEMISTRY OF MATERIALS, 2000, 12 (05) : 1354 - 1360
  • [7] Photocatalytic oxidation of Fe(OH)2 suspension with visible light irradiation
    Chen, Rufen
    Chen, Haixia
    Wei, Yu
    Hou, Denglu
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (44) : 16453 - 16459
  • [8] Characterization of aqueous dispersions of Fe3O4 nanoparticles and their biomedical applications
    Cheng, FY
    Su, CH
    Yang, YS
    Yeh, CS
    Tsai, CY
    Wu, CL
    Wu, MT
    Shieh, DB
    [J]. BIOMATERIALS, 2005, 26 (07) : 729 - 738
  • [9] Hydrothermal synthesis of monodisperse magnetite nanoparticles
    Daou, T. J.
    Pourroy, G.
    Begin-Colin, S.
    Greneche, J. M.
    Ulhaq-Bouillet, C.
    Legare, P.
    Bernhardt, P.
    Leuvrey, C.
    Rogez, G.
    [J]. CHEMISTRY OF MATERIALS, 2006, 18 (18) : 4399 - 4404
  • [10] PHOTOCHEMISTRY OF AQUEOUS IRON(III) POLYCARBOXYLATE COMPLEXES - ROLES IN THE CHEMISTRY OF ATMOSPHERIC AND SURFACE WATERS
    FAUST, BC
    ZEPP, RG
    [J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1993, 27 (12) : 2517 - 2522
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