Controlled synthesis α-Fe2O3 nanostructures for efficient photocatalysis

被引：62
作者：
Wang, Chao [1 ,2 ]
Huang, Zhixiong [1 ]
机构：
[1] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
[2] Hubei Univ Educ, Sch Construct & Mat Engn, Wuhan 430205, Peoples R China
来源：
MATERIALS LETTERS | 2016年 / 164卷
关键词：
Semiconductors; Solar energy materials; Photocatalyst; alpha-Fe2O3; Nanostructures; TEMPLATE; GOLD;
D O I：
10.1016/j.matlet.2015.10.152
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
alpha-Fe2O3 microspheres and nanospheres were successfully fabricated by a simple solvothermal method in ethanol-water mixed solvent, with the assistance of NaCl and NaBr, respectively. The as-prepared sample was characterized by XRD, FESEM, TEM, BET surface area, and UV-vis diffuse reflectance spectra. The photocatalytic activity of the alpha-Fe2O3 nanostructures was evaluated by photocatalytic degradation of ithodamine B under visible-light irradiation. The results show that alpha-Fe2O3 nanospheres prepared in the presence of NaBr exhibit much better photocatalytic activity than alpha-Fe2O3 microspheres prepared in the presence of NaCl. The good photocatalytic activity of alpha-Fe2O3 nanospheres is attributed to the larger surface area and enhanced light absorption. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：194 / 197
页数：4
相关论文
共 18 条
  • [1] Semiconductor clusters, nanocrystals, and quantum dots
    Alivisatos, AP
    [J]. SCIENCE, 1996, 271 (5251) : 933 - 937
  • [2] Monodisperse α-Fe2O3 Mesoporous Microspheres: One-Step NaCl-Assisted Microwave-Solvothermal Preparation, Size Control and Photocatalytic Property
    Cao, Shao-Wen
    Zhu, Ying-Jie
    [J]. NANOSCALE RESEARCH LETTERS, 2011, 6 : 1 - 7
  • [3] 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
  • [4] Polymeric Photocatalysts Based on Graphitic Carbon Nitride
    Cao, Shaowen
    Low, Jingxiang
    Yu, Jiaguo
    Jaroniec, Mietek
    [J]. ADVANCED MATERIALS, 2015, 27 (13) : 2150 - 2176
  • [5] Visible light induced photocatalytic degradation of organic pollutants
    Chatterjee, D
    Dasgupta, S
    [J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS, 2005, 6 (2-3) : 186 - 205
  • [6] Gold nanoparticles: Assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology
    Daniel, MC
    Astruc, D
    [J]. CHEMICAL REVIEWS, 2004, 104 (01) : 293 - 346
  • [7] 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
  • [8] In situ carbonization of a soft-template to directly synthesize crystalline mesoporous metal oxides with high surface areas
    Guo, Limin
    Ida, Shintaro
    Daio, Takashi
    Hagiwara, Hidehisa
    Ishihara, Tatsumi
    [J]. NEW JOURNAL OF CHEMISTRY, 2014, 38 (12) : 5846 - 5855
  • [9] Solvothermal synthesis of rice-like TiO2 nanocrystals with enhanced photocatalytic activity
    He, Fei
    Zhou, Di
    Feng, Xiaoli
    Zhang, Chao
    Li, Tao
    Li, Guangxing
    [J]. MATERIALS LETTERS, 2014, 132 : 1 - 3
  • [10] ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS
    HOFFMANN, MR
    MARTIN, ST
    CHOI, WY
    BAHNEMANN, DW
    [J]. CHEMICAL REVIEWS, 1995, 95 (01) : 69 - 96
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