Abstract
A novel approach to synthesize a new generation of composite nanoparticles consisting of a photocatalytic shell of anatase-titania and a magnetic core of nickel ferrite has been adopted combining reverse micelle and chemical hydrolysis techniques. Titania is an effective anti-microbial agent that can be directly sprayed on infected areas of the human body or environment. Unfortunately, titania is an electrical insulator and is difficult to extract from the sprayed surface after treatment. The titania photocatalytic shell provides good antimicrobial capability that renders the bacteria inactive and removes the organic pollutants, while the nickel ferrite magnetic core enables controlled delivery of composite nanoparticles through the application of a small magnetic field, encouraging their application as removable anti-microbial photocatalyst nanoparticles.
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A. Fujishima and K. Honda, Nature, 238 (1972), p. 37.
M.A. Fox and M.T. Dulay, Chem. Rev., 93 (1993), p. 341.
M.R. Hoffmann et al., Chem. Rev., 95 (1995), p. 69.
D.F. Ollis and H. El-Akabi, editors, Photocatalytic Purification and Treatment of Water and Air (Amsterdam: Elsevier Science, 1993).
M. Adachi et al., J. Electrochem. Soc., 150 (2003), p. G488.
A.G. Rincon et al., J. Photochem. Photobiol. A: Chem., 139 (2001), p. 233.
K. Sunada, T. Watanabe, and K. Hashimoto, J. Photochem. Photobiol. A: Chem., 156 (2003), p. 227.
R.J. Watts et al., Water Research, 29 (1995), p. 95.
T. Matsunaga et al., Appl. Environ. Microbiol., 54 (1988), p. 1330.
T. Matsunaga and M. Okochi, Environ. Sci. Technol., 29 (1995), p. 501.
F. Chen et al., Chemosphere, 44 (2001), p. 1159.
D. Beydoun and R. Amal, Mater. Sci. Eng. B, 94 (2002), p. 71.
D.G. Shchukin, A.I. Kulak, and D.V. Sviridov, Photochem. Photobiol. Sci., 1 (2002), p. 742.
Y. Gao et al., Mater. Chem. Phys., 80 (2003), p. 348.
R.D.K. Misra et al., Mater. Sci. & Eng. B, 111 (2004), p. 164.
S. Gubbala et al., Physica B, 348 (2004), p. 317.
W.F. McClume, editor, Joint Committee on Powder Diffraction Standards (Swarthmore, PA: International Center for Diffraction Data, 1979) X-ray powder JCPDS diffraction files (a) 03.0875, NiFe2O4 and (b) 01.0562, anatase TiO2.
B. Martinez et al., Phys. Rev. Lett., 80 (1998), p. 181.
G. Marci et al., Annali Di Chimica, 93 (2003), p. 639.
C.Y. Yun et al., Water Sci., Technol., 49 (2004), p. 177.
G.D. Harris et al., Water Resear., 21 (1987), p. 687.
P.C. Maness et al., Appl. Environ. Microbiol., 65 (1999), p. 4094.
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For more information, contact R.D.K. Misra, University of Louisiana at Lafayette, Center for Structural and Functional Materials, P.O. Box 44130, Lafayette, LA 70504-4130; (337) 482-6430; e-mail dmisra@louisiana.edu.
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Rana, S., Misra, R.D.K. The anti-microbial activity of titania-nickel ferrite composite nanoparticles. JOM 57, 65–69 (2005). https://doi.org/10.1007/s11837-005-0186-y
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DOI: https://doi.org/10.1007/s11837-005-0186-y