Facile preparation of size-controlled TiO2 nanoparticles by hot-filament metal oxide deposition method and their gas sensing properties to NO2

被引：1
|
作者：
San, Xiaoguang [1 ]
Xu, Weiwei [2 ]
Wang, Guosheng [1 ]
Liang, Bing [3 ]
Hou, Nannan [4 ]
Meng, Fanli [4 ]
机构：
[1] Shenyang Univ Chem Technol, Coll Chem Engn, Shenyang 110142, Peoples R China
[2] Shenyang Res Inst Photog & Mat & Chem Ind, Shenyang 110141, Peoples R China
[3] Shenyang Univ Chem Technol, Coll Mat Sci & Engn, Shenyang 110142, Peoples R China
[4] Chinese Acad Sci, Inst Intelligent Machines, Res Ctr Biomimet Funct Mat & Sensing Devices, Hefei 230031, Peoples R China
来源：
FUNCTIONAL MATERIALS LETTERS | 2015年 / 8卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Hot-filament metal oxide deposition; TiO2; nanoparticles; sensors; NO2; GRAIN-SIZE; SENSORS;
D O I：
10.1142/S1793604715500435
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Titanium dioxide (TiO2) nanoparticles were prepared by resistive heating Ti filament under an oxygen atmosphere. The obtained nanoparticles were confirmed to be a tetragonal crystal TiO2 and the particle size increased with increasing the oxygen pressure. The NO2 gas sensing properties of the TiO2 nanoparticles were investigated. All the sensors made of TiO2 nanoparticles with different particle sizes exhibited the maximum sensitivities to 1 ppm NO2 at a relative low operating temperature of 150 degrees C. Comparing with the large particle size of TiO2 nanoparticles, the ones with the smallest particle size exhibited the highest sensitivity and the best response and recovery characteristic to various NO2 gas concentrations.
引用
收藏
页数：4
相关论文
共 50 条
  • [1] Preparation and characterization of size-controlled rutile TiO2 nanoparticles
    Faculty of Chemistry and Chemical Engineering, Zhenjiang 212013, China
    Zhongguo Youse Jinshu Xuebao, 2006, 6 (1058-1063):
  • [2] Preparation of the Size-Controlled TiO2 with Spherical Morphology
    Hu Mei-Long
    Bai Chen-Guang
    Xu Sheng-Ming
    Xu Gang
    Liang Dong
    ACTA PHYSICO-CHIMICA SINICA, 2008, 24 (12) : 2287 - 2292
  • [3] Preparation of size-controlled TiO2 nanoparticles and derivation of optically transparent photocatalytic films
    Chae, SY
    Park, MK
    Lee, SK
    Kim, TY
    Kim, SK
    Lee, WI
    CHEMISTRY OF MATERIALS, 2003, 15 (17) : 3326 - 3331
  • [4] Size-controlled synthesis of dispersed equiaxed amorphous TiO2 nanoparticles
    Li, Zhaoqing
    Zhu, Yun
    Wang, Jiatai
    Guo, Qian
    Li, Jiangong
    CERAMICS INTERNATIONAL, 2015, 41 (07) : 9057 - 9062
  • [5] Facile preparation of a composite of TiO2 nanosheets and polyaniline and its gas sensing properties
    Li, Yang
    Ban, Huitao
    Zhao, Huijie
    Yang, Mujie
    RSC ADVANCES, 2015, 5 (129) : 106945 - 106952
  • [6] Synthesis and enhanced NO2 gas sensing properties of ZnO nanorods/TiO2 nanoparticles heterojunction composites
    Zou, C. W.
    Wang, J.
    Xie, W.
    JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2016, 478 : 22 - 28
  • [7] Size-controlled TiO2 nanoparticles on porous hosts for enhanced photocatalytic hydrogen production
    Jiang, Chaoran
    Lee, Ki Yip
    Parlett, Christopher M. A.
    Bayazit, Mustafa K.
    Lau, Chi Ching
    Ruan, Qiushi
    Moniz, Savio J. A.
    Lee, Adam F.
    Tang, Junwang
    APPLIED CATALYSIS A-GENERAL, 2016, 521 : 133 - 139
  • [8] Effects of bulk and surface defects on the photocatalytic performance of size-controlled TiO2 nanoparticles
    Wu, Zhijiao
    Cao, Shuang
    Zhang, Chi
    Piao, Lingyu
    NANOTECHNOLOGY, 2017, 28 (27)
  • [9] Size-controlled synthesis of spherical TiO2 nanoparticles:: Morphology, crystallization, and phase transition
    Pal, Mou
    Serrano, J. Garcia
    Santiago, P.
    Pal, U.
    JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (01): : 96 - 102
  • [10] Microstructured TiO2 templates for the preparation of size-controlled Bryopsis protoplasts as cell models
    Tatsuma, T
    Ikezawa, A
    Ohko, Y
    Miwa, T
    Matsue, T
    Fujishima, A
    ADVANCED MATERIALS, 2000, 12 (09) : 643 - +
12345