Abstract
The waterborne polyurethane/doped TiO2 nanoparticle hybrid films were prepared. Nd, I doped TiO2 was prepared with a 50 nm particle size firstly. The hybrid film was prepared by mixing doped TiO2 with waterborne polyurethane, followed by heat treatment. The presence and nanometric distribution of doped TiO2 nanoparticles in prepared membranes is evident according to SEM images. The photocatalytic activities of doped TiO2 were significantly enhanced compared with pure TiO2 powders. After the hybrid film fabrication, the photocatalytic activities were almost the same as the pure catalysts with k MB of 0.046. In the antibacterial testing, the hybrid films can inhibit E. coli growth. A significant decrease in membrane fluidity and increase of permeability of E. coli were observed.
Similar content being viewed by others
References
Piewnuan C, Wootthikanokkhan J, Ngaotrakanwiwat P, et al. Preparation of TiO2/(TiO2-V2O5)/polypyrrole Nanocomposites and a Study on Catalytic Activities of the Hybrid Materials under UV/Visible Light and in the Dark[J]. Superlattices and Microstructures, 2014, 75: 105–117
Choi W, Termin A, Hoffmann M R. The Role of Metal Ion Dopants in Quantum-Sized TiO2: Correlation between Photoreactivity and Charge Carrier Recombination Dynamics[J]. J. Phys. Chem., 1994, 98(51):13 669–13 679
Wei H, Wu Y, Lun N. Preparation and Photocatalysis of TiO2 Nanoparticles Co-doped With Nitrogen and Lanthanum[J]. Mater. Sci., 2004, 39(4): 1 305–1 308
Kim M C, Lee Y W, Kim S J, et al. Improved Lithium Ion Behavior Properties of TiO2@Graphitic-like Carbon Core@Shell Nanostructure, Electrochimica Acta, 2014, 147: 241–249
Chang J T, Lai Y F, He J L. Photocatalytic Performance of Chromium or Nitrogen Doped Arc Ion Plated-TiO2 Films Surf[J]. Coat. Technol., 2005, 200(5–6): 1 640–1 644
Asahi R, Morikawa T, Ohwaki T. Visible-light Photocatalysis in Nitrogen-doped Titanium Oxides[J]. Science, 2001, 293: 269
Djellabi R, Ghorab M F, Cerrato G, et al. Photoactive TiO2-montmorillonite Composite for Degradation of Organic Dyes in Water[J]. Journal of Photochemistry and Photobiology A: Chemistry, 2014, 295:57–63
Irie H, Watanabe Y, Hashimoto K. Nitrogen-concentration Dependence on Photocatalytic Activity of TiO2−x Nx Powders[J]. J. Phys. Chem. B, 2003, 107(23): 5 483–5 486
Shoabargh S, Karimi A, Dehghan G, et al. A Hybrid Photocatalytic and Enzymatic Process Using Glucose Oxidase Immobilized on TiO2/polyurethane for Removal of a Dye [J]. Journal of Industrial and Engineering Chemistry, 2014, 20(5): 3 150–3 156
Kim H J, Pant H R, Kim J H, et al. Fabrication of Multifunctional TiO2-fly Ash/polyurethane Nanocomposite Membrane via Electrospinning [J]. Ceramics International, 2014, 40(2): 3 023–3 029
Jiang X F, Yang L, Liu P, et al. The Photocatalytic and Antibacterial Activities of Neodymium and Iodine Doped TiO2 Nanoparticles[J]. Colloids and Surfaces B: Biointerfaces, 2010, 79: 69–74
Swan T M, Watson K. Membrane Fatty Acid Composition and Membrane Fluidity as Parameters of Stress Tolerance in Yeast[J]. Canadian Journal of Microbiology, 1997, 43(1): 70–77
Liu P, Wenli D, Li X. The Damage of Outer Membrane of Escherichia Coli in the Presence of TiO2 Combined With UV light[J]. Colloids and Surfaces B: Biointerfaces, 2010, 78: 171–176
Conti J, Halladay H N, Petersheim M. An Ionotropic Phase Transition in Phosphatidylcholine: Cation and Anion Cooperativity[J]. Biochim. Biophys. Acta, 1987, 902:53–64
Kiwi J, Nadtochenko V. Evidence for the Mechanism of Photocatalytic Degradation of the Bacterial Wall Membrane at the TiO2 Interface by ATR-FTIR and Laser Kinetic Spectroscopy[J]. Langmuir, 2005, 21(10):4 631–4 641
Author information
Authors and Affiliations
Corresponding author
Additional information
Funded by the National Natural Science Foundation of China (No.51208141 ) and Open Project of State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology(No.QA201206)
Rights and permissions
About this article
Cite this article
Qiu, S., Deng, F., Xu, S. et al. Degradation of pollutant and antibacterial activity of waterborne polyurethane/doped TiO2 nanoparticle hybrid films. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 30, 447–451 (2015). https://doi.org/10.1007/s11595-015-1169-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11595-015-1169-7