Synthesis of nickel sulfide submicrometer-sized hollow spheres using a γ-irradiation route

被引:50
作者
Hu, Y [1 ]
Chen, JF [1 ]
Chen, WM [1 ]
Li, XL [1 ]
机构
[1] Univ Sci & Technol China, Dept Chem, Struct Res Lab, Phys & Chem Sci Ctr, Hefei 230026, Anhui, Peoples R China
关键词
D O I
10.1002/adfm.200305154
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Nickel sulfide (NiS) hollow spheres have been successfully synthesized by gamma-irradiation, at room temperature, of an aqueous PMMA-CS2-ethanol solution that contains NiSO4-6H(2)O. Electron microscopy results show that the diameter of the NiS hollow spheres and the thickness of the sphere shells are about 500 nm and 20 nm, respectively. The room-temperature UV-vis absorption spectrum of the NiS hollow spheres gives a peak centered at around 233 nm (5.56 eV) with a remarkable blue-shift relative to that of bulk NiS (2.1 eV). This remarkable blue-shift may be attributed to the small dimensions of the materials. A possible growth mechanism of NiS hollow spheres by gamma-irradiation method is also presented. The successful preparation of NiS hollow spheres on a large scale under mild conditions could be of interest for both applications and fundamental studies.
引用
收藏
页码:383 / 386
页数:4
相关论文
共 26 条
  • [1] New solid and hollow, magnetic and non-magnetic, organic-inorganic monodispersed hybrid microspheres: synthesis and characterization
    Bamnolker, H
    Nitzan, B
    Gura, S
    Margel, S
    [J]. JOURNAL OF MATERIALS SCIENCE LETTERS, 1997, 16 (16) : 1412 - 1415
  • [2] CdS mineralization of hexagonal, lamellar, and cubic lyotropic liquid crystals
    Braun, PV
    Stupp, SI
    [J]. MATERIALS RESEARCH BULLETIN, 1999, 34 (03) : 463 - 469
  • [3] BREAKDOWN OF METHYL METHACRYLATE POLYMER BY HIGH-ENERGY RADIATION
    CHARLESBY, A
    ROSS, M
    [J]. NATURE, 1953, 171 (4365) : 1153 - 1153
  • [4] Stabilization of CdS semiconductor nanoparticles against photodegradation by a silica coating procedure
    Correa-Duarte, MA
    Giersig, M
    Liz-Marzan, LM
    [J]. CHEMICAL PHYSICS LETTERS, 1998, 286 (5-6) : 497 - 501
  • [5] Giersig M, 1997, ADV MATER, V9, P570, DOI 10.1002/adma.19970090712
  • [6] Chemistry of nanosized silica-coated metal particles EM-study
    Giersig, M
    Liz-Marzan, LM
    Ung, T
    Su, DS
    Mulvaney, P
    [J]. BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1997, 101 (11): : 1617 - 1620
  • [7] Nickel sulfide hollow whisker formation
    Holcomb, GR
    Cramer, SD
    [J]. MATERIALS CHARACTERIZATION, 1997, 38 (02) : 67 - 73
  • [8] Synthesis of macroporous minerals with highly ordered three-dimensional arrays of spheroidal voids
    Holland, BT
    Blanford, CF
    Stein, A
    [J]. SCIENCE, 1998, 281 (5376) : 538 - 540
  • [9] REACTIONS OF AGI IONS IN ALCOHOLS AFTER RADIOLYSIS AT 77-K
    JANES, R
    STEVENS, AD
    SYMONS, MCR
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1989, 85 : 3973 - 3985
  • [10] Jiang XC, 2001, ADV MATER, V13, P1278, DOI 10.1002/1521-4095(200108)13:16<1278::AID-ADMA1278>3.0.CO