Novel Chitosan-TiO2 Nanohybrid: Preparation, Characterization, Antibacterial, and Photocatalytic Properties

Title
Novel Chitosan-TiO2 Nanohybrid: Preparation, Characterization, Antibacterial, and Photocatalytic Properties
Author(s)
할도리유바라즈심재진
Keywords
CHITOSAN/TIO2 HYBRID FILM; ESCHERICHIA-COLI; TIO2; LIGHT; MECHANISM; ANATASE; INACTIVATION; DEGRADATION; SURFACES; RUTILE
Issue Date
201402
Publisher
WILEY-BLACKWELL
Citation
POLYMER COMPOSITES, v.35, no.2, pp.327 - 333
Abstract
In this report, chitosan (CS) encapsulated titanium dioxide (TiO2) nanohybrid was prepared by chemical precipitation method. Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) confirmed the formation of nanohybrid. Transmission electron microscopy (TEM) analysis showed the immobilization of TiO2 nanoparticles on the surface of CS. The nanohybrid was also characterized by thermogravimetric analysis (TGA) and zeta potential. The nanohybrid exhibited high photocatalytic activity as evident from the degradation of methylene blue (MB) dye. The result revealed substantial degradation of the MB dye (90%) under UV-light illumination. The catalytic efficiency was unaltered even after five cycles of reuse. In addition, the nanohybrid exhibited a superior antibacterial activity of 100% within 24 h of treatment against Escherichia coli (E. coli) was measured by colony forming units (CFU). POLYM. COMPOS., 35:327-333, 2014. (c) 2013 Society of Plastics Engineers
URI
http://hdl.handle.net/YU.REPOSITORY/33186http://dx.doi.org/10.1002/pc.22665
ISSN
0272-8397
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공과대학 > 화학공학부 > Articles
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