Photocatalytic mineralization of methylene blue from water by a heterogeneous copper-titania nanocomposite film

被引:12
作者
Habibi, Mohammad Hossein [1 ]
Kamrani, Reza [1 ]
机构
[1] Univ Isfahan, Nanotechnol Lab, Dept Chem, Esfahan 8174673441, Islamic, Iran
关键词
Dye removal; Photocatalytic degradation; Copper-doped titania film; Photocatalyst; Environmental pollutant; Methylene blue; THIN-FILM; TIO2; NANOPARTICLES; REMOVAL; FABRICATION; REDUCTION; CARBON;
D O I
10.1080/19443994.2012.677512
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Copper-doped nanostructure titania film was successfully prepared using the sol-gel method. The phase structure, thermal, microstructure, and surface properties were characterized by X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy, scanning electron microscopy, reflectance spectroscopy (Ultraviolet Diffuse Reflectance [UV-DRS]), and thermal analysis (Thermal gravimetric differential thermogravimetry [TG-DTG]). XRD showed that titania consisted of 92% anatase and 8% rutile crystalline phases. The results obtained have shown that these systems can degrade methylene blue (MB) as a model environmental pollutant in wastewater. The degradation rate of MB in the presence of copper-doped titania at optimized conditions was higher than that for bare titania. MB is almost completely mineralized to carbon dioxide, nitrate, and sulfate ion by the photocatalytic method. The results showed that no significant fraction of copper-titania residues was released from the film in water. This investigation will give a new insight into understanding the industrial textile dye photodegradation in aquatic environment.
引用
收藏
页码:278 / 284
页数:7
相关论文
共 31 条
  • [1] The effect of particle shape on the activity of nanocrystalline TiO2 photocatalysts in phenol decomposition
    Balazs, Nandor
    Mogyorosi, Karoly
    Sranko, David F.
    Pallagi, Attila
    Alapi, Tuende
    Oszkó, Albert
    Dombi, Andras
    Sipos, Pal
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2008, 84 (3-4) : 356 - 362
  • [2] Photocatalytic degradation for environmental applications - a review
    Bhatkhande, DS
    Pangarkar, VG
    Beenackers, AACM
    [J]. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2002, 77 (01) : 102 - 116
  • [3] Preparation of TiO2 nanofilm via sol-gel process and its photocatalytic activity for degradation of methyl orange
    Chen, Lijuan
    Tian, Jintao
    Qiu, Huang
    Yin, Yansheng
    Wang, Xin
    Dai, Jinhui
    Wu, Pingwei
    Wang, Aiping
    Chu, Lei
    [J]. CERAMICS INTERNATIONAL, 2009, 35 (08) : 3275 - 3280
  • [4] Cu-doped TiO2 systems with improved photocatalytic activity
    Colon, G.
    Maicu, M.
    Hidalgo, M. C.
    Navio, J. A.
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 67 (1-2) : 41 - 51
  • [5] Discoloration and mineralization of Orange II by using Fe3+-doped TiO2 and bentonite clay-based Fe nanocatalysts
    Feng, JY
    Wong, RSK
    Hu, XJ
    Yue, PL
    [J]. CATALYSIS TODAY, 2004, 98 (03) : 441 - 446
  • [6] Synthesis and characterization of Cadmium selenide nanoparticles loaded on activated carbon and its efficient application for removal of Muroxide from aqueous solution
    Ghaedi, M.
    Amirabad, S. Zamani
    Marahel, F.
    Kokhdan, S. Nasiri
    Sahraei, R.
    Nosrati, M.
    Daneshfar, A.
    [J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2011, 83 (01) : 46 - 51
  • [7] Multiwalled Carbon Nanotubes as Adsorbents for the Kinetic and Equilibrium Study of the Removal of Alizarin Red S and Morin
    Ghaedi, M.
    Hassanzadeh, A.
    Kokhdan, S. Nasiri
    [J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2011, 56 (05) : 2511 - 2520
  • [8] GRATZEL M, 1990, J PHYS CHEM-US, V94, P2566, DOI 10.1021/j100369a064
  • [9] A novel method for preparing v-doped titanium dioxide thin film photocatalysts with high photocatalytic activity under visible light irradiation
    Gu, De-En
    Yang, Bang-Chao
    Hu, Yong-Da
    [J]. CATALYSIS LETTERS, 2007, 118 (3-4) : 254 - 259
  • [10] Preparation, characterization and photocatalytic activity of a novel nanostructure composite film derived from nanopowder TiO2 and sol-gel process using organic dispersant
    Habibi, Mohammad Hossein
    Nasr-Esfahani, Mojtaba
    [J]. DYES AND PIGMENTS, 2007, 75 (03) : 714 - 722