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Advanced Materials

Enhanced Photocatalytic Performance of Brookite TiO2 Macroporous Particles Prepared by Spray Drying with Colloidal Templating

Authors

  • F. Iskandar,

    1. Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima 739-8527 (Japan)
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  • A. B. D. Nandiyanto,

    1. Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima 739-8527 (Japan)
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  • K. M. Yun,

    1. Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima 739-8527 (Japan)
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  • C. J. Hogan Jr.,

    1. Aerosol and Air Quality Research Laboratory, Department of Energy, Environmental & Chemical Engineering, Washington University, 1 Brookings Dr., Campus Box 1180, Saint Louis, MO 63132 (USA)
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  • K. Okuyama,

    1. Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima 739-8527 (Japan)
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  • P. Biswas

    1. Aerosol and Air Quality Research Laboratory, Department of Energy, Environmental & Chemical Engineering, Washington University, 1 Brookings Dr., Campus Box 1180, Saint Louis, MO 63132 (USA)
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  • F.I. acknowledges support from a Japan Society for Promotion of Science (JSPS) Postdoctoral Fellowship, A.B.D.N. acknowledges support from a Japanese Ministry of Education, Science, Sports, and Culture scholarship, and C.J.H., Jr. acknowledges support from an NSF Graduate Research Fellowship. The authors thank Masatomo Tohi and Takashi Ozaki for assistantship in this research. Supporting Information is available online from Wiley InterScience or from the author.

Abstract

Macroporous particle photocatalysts can be produced using polystyrene latex (PSL) colloidal templating (see figure), which can be used for organic waste degradation. The rate of degradation is similar to that of nanoparticles. Macroporous particles have lower mechanical mobilities than nanoparticles and can be easily collected and recovered for repeated use.

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