화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.12, No.5, 689-693, September, 2006
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Synthesis and Photocatalytic Reactions of Highly Ordered Macroporous TiO2
Hyun Jeong Jo, Byoung Joon Ahn†, Myoung Soo Gang, Seuk-Beum Ko, and Wonghil Chang1, †
  • Department of Chemistry Education, Institute of Science Education, Chonbuk National University, Chonju 561-756, Korea
  • 1School of Health Science and Resources, Jeonju University, Jeonju 560-759, Korea
E-mail:,
Highly ordered macroporous TiO2 was synthesized using a single-step reaction and applied to photocatalytic decomposition reactions. Monodisperse polystyrene and poly(methyl methacrylate) latex spheres were synthesized using an emulsifier-free emulsion polymerization and aligned into ordered arrays through centrifugation. The interstices between the latex spheres were filled by titanium alkoxide, which hydrolyzed and condensed. This process indicates that the inorganic precursor was able to diffuse through the interstitial voids between the close-packed spheres. The three-dimensional periodic macroporous TiO2 framework was formed through calcinaton. The decompositions of Methylene Blue and acetone under UV irradiation in the presence of various TiO2 catalysts were compared. The synthesized macroporous TiO2 provides better photocatalytic activity than do commercial anatase and rutile catalysts.
Keywords:polystyrene latex spheres;macroporous TiO2;emulsion polymerization;photocatalytic Methylene Blue decomposition;UV irradiation
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