Monodisperse α-Fe2O3 Mesoporous Microspheres: One-Step NaCl-Assisted Microwave-Solvothermal Preparation, Size Control and Photocatalytic Property

被引：38
作者：
Cao, Shao-Wen [1 ]
Zhu, Ying-Jie [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Beijing 100864, Peoples R China
来源：
NANOSCALE RESEARCH LETTERS | 2011年 / 6卷
基金：
中国国家自然科学基金;
关键词：
IRON-OXIDE; HOLLOW SPHERES; NIOBIUM OXIDE; MANGANESE OXIDE; THIN-FILMS; FE2O3; NANOPARTICLES; ASSEMBLIES; PRECURSORS; MECHANISM;
D O I：
10.1007/s11671-010-9742-7
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A simple one-step NaCl-assisted microwave-solvothermal method has been developed for the preparation of monodisperse alpha-Fe2O3 mesoporous microspheres. In this approach, Fe(NO3)(3)center dot 9H(2)O is used as the iron source, and polyvinylpyrrolidone (PVP) acts as a surfactant in the presence of NaCl in mixed solvents of H2O and ethanol. Under the present experimental conditions, monodisperse alpha-Fe2O3 mesoporous microspheres can form via oriented attachment of alpha-Fe2O3 nanocrystals. One of the advantages of this method is that the size of alpha-Fe2O3 mesoporous microspheres can be adjusted in the range from ca. 170 to ca. 260 nm by changing the experimental parameters. High photocatalytic activities in the degradation of salicylic acid are observed for alpha-Fe2O3 mesoporous microspheres with different specific surface areas.
引用
收藏
页码：1 / 7
页数：7
相关论文
共 39 条
  • [1] Ligand-assisted liquid crystal templating in mesoporous niobium oxide molecular sieves
    Antonelli, DM
    Nakahira, A
    Ying, JY
    [J]. INORGANIC CHEMISTRY, 1996, 35 (11) : 3126 - 3136
  • [2] A study of the structural and catalytic effects of sulfation on iron oxide catalysts prepared from goethite and ferrihydrite precursors for methane oxidation
    Brown, ASC
    Hargreaves, JSJ
    Rijniersce, B
    [J]. CATALYSIS LETTERS, 1998, 53 (1-2) : 7 - 13
  • [3] Seeding of colloidal Au nanoparticle solutions. 2. Improved control of particle size and shape
    Brown, KR
    Walter, DG
    Natan, MJ
    [J]. CHEMISTRY OF MATERIALS, 2000, 12 (02) : 306 - 313
  • [4] Hierarchically nanostructured (α-Fe2O3 hollow spheres:: Preparation, growth mechanism, photocatalytic property, and application in water treatment
    Cao, Shao-Wen
    Zhu, Ying-Jie
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (16) : 6253 - 6257
  • [5] Iron oxide hollow spheres: Micro wave-hydro thermal Ionic liquid preparation, formation mechanism, crystal phase and morphology control and properties
    Cao, Shao-Wen
    Zhu, Ying-Jie
    [J]. ACTA MATERIALIA, 2009, 57 (07) : 2154 - 2165
  • [6] Templated synthesis of hierarchically porous manganese oxide with a crystalline nanorod framework and its high electrochemical performance
    Chen, Hangrong
    Dong, Xiaoping
    Shi, Jianlin
    Zhao, Jinjin
    Hua, Zile
    Gao, Jianhua
    Ruan, Meiling
    Yan, Dongsheng
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2007, 17 (09) : 855 - 860
  • [7] From microporous to mesoporous molecular sieve materials and their use in catalysis
    Corma, A
    [J]. CHEMICAL REVIEWS, 1997, 97 (06) : 2373 - 2419
  • [8] Controlled formation of highly organized mesoporous titania thin films:: From mesostructured hybrids to mesoporous nanoanatase TiO2
    Crepaldi, EL
    Soler-Illia, GJDA
    Grosso, D
    Cagnol, F
    Ribot, F
    Sanchez, C
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (32) : 9770 - 9786
  • [9] The hydrothermal synthesis of zeolites: History and development from the earliest days to the present time
    Cundy, CS
    Cox, PA
    [J]. CHEMICAL REVIEWS, 2003, 103 (03) : 663 - 701
  • [10] Monodisperse magnetic single-crystal ferrite microspheres
    Deng, H
    Li, XL
    Peng, Q
    Wang, X
    Chen, JP
    Li, YD
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (18) : 2782 - 2785
1234