Preparation and characterization of nano TiO2/micron Cr2O3 composite particles

被引：10
|
作者：
Wang, Bin [1 ]
Yan, Jun [1 ]
Cui, Haiping [1 ]
Du, Shiguo [1 ]
机构：
[1] Shijiazhuang Mech Engn Coll, Shijiazhuang 050003, Hebei Province, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 15期
关键词：
TiO2; nanoparticles; Composite particles; Absorption intensity; PHOTOCATALYTIC ACTIVITY; DOPED TIO2; FILMS;
D O I：
10.1016/j.jallcom.2011.02.008
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：
Nano-TiO2/micro-size Cr2O3 composite particles were first prepared by hydrolysis of Ti(OBu)(4) in an abundant acidic aqueous solution without calcinations at room temperature. XPS analysis shows that the element C, O, Ti and Sn existed on the surfaces of the composite particles. Observation by field emission scanning electronic microscope shows TiO2 particles of 10-15nm covers on Cr2O3 powder surfaces to form nanometer/micron composite particles. UV-vis spectra show a red shift of the absorption edge and a significant increase of absorption intensity in the visible region. These results confirm that TiO2 of anatase type can be synthesized on the surface of Cr2O3. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：5017 / 5019
页数：3
相关论文
共 50 条
  • [1] Influence of TiO2 Nano Particles on the Resistance to Corrosion and Mechanism of Cr2O3
    Cheng Xudong
    Peng Sheng
    Zhou Jiliang
    Zhu Zhenqi
    [J]. RARE METAL MATERIALS AND ENGINEERING, 2012, 41 : 319 - 322
  • [2] Influence of TiO2 Nano Particles on the Resistance to Corrosion and Mechanism of Cr2O3
    Cheng Xudong1
    [J]. 稀有金属材料与工程, 2012, 41 (S1) : 319 - 322
  • [3] Preparation and characterization of nano-Yb2O3/TiO2 particles
    Chen, JJ
    Tang, JJ
    Zhao, FH
    Li, RX
    [J]. RARE METAL MATERIALS AND ENGINEERING, 2003, 32 (07) : 546 - 549
  • [4] Catalytically Active Composite Material Based on TiO2/Cr2O3 Hollow Spherical Particles
    Rogacheva, A. O.
    Buzaev, A. A.
    Brichkov, A. S.
    Khalipova, O. S.
    Klestov, S. A.
    Paukshtis, E. A.
    Kozik, V. V.
    [J]. KINETICS AND CATALYSIS, 2019, 60 (04) : 484 - 489
  • [5] Catalytically Active Composite Material Based on TiO2/Cr2O3 Hollow Spherical Particles
    A. O. Rogacheva
    A. A. Buzaev
    A. S. Brichkov
    O. S. Khalipova
    S. A. Klestov
    E. A. Paukshtis
    V. V. Kozik
    [J]. Kinetics and Catalysis, 2019, 60 : 484 - 489
  • [6] Preparation and Infrared Reflection Performance of Al/Cr2O3 Composite Particles
    Yuan Le
    Weng Xiao-Long
    Lu Hu
    Deng Long-Jiang
    [J]. JOURNAL OF INORGANIC MATERIALS, 2013, 28 (05) : 545 - 550
  • [7] Preparation and Characterization of Barite/TiO2 Composite Particles
    Zhou, Hong
    Wang, Mengmeng
    Ding, Hao
    Du, Gaoxiang
    [J]. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, 2015, 2015
  • [8] Effect of Cr2O3 in the varistor behaviour of TiO2
    Bueno, PR
    Camargo, ER
    Longo, E
    Leite, E
    Pianaro, SA
    Varela, JA
    [J]. JOURNAL OF MATERIALS SCIENCE LETTERS, 1996, 15 (23) : 2048 - 2050
  • [9] Electrical conductivity of Cr2O3 doped with TiO2
    Holt, A
    Kofstad, P
    [J]. SOLID STATE IONICS, 1999, 117 (1-2) : 21 - 25
  • [10] Development and Characterization of Nano-Al2O3, Cr2O3, and TiO2 Dispersed Mo Alloys Fabricated by Powder Metallurgy
    Rao, G. M.
    Akhil, M.
    Das, B.
    Khan, A. R.
    Patra, A.
    Chaira, D.
    [J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2023, 32 (04) : 1683 - 1706
12345