Hydrophilic TiO2 porous spheres anchored on hydrophobic polypropylene membrane for wettability induced high photodegrading activities

Fang Niu, Le Sheng Zhang, Chao Qiu Chen, Wei Li, Lin Li, Wei Guo Song, Lei Jiang

Research output: Contribution to journalArticleResearchpeer-review

25 Citations (Scopus)


TiO2 porous nanospheres on polypropylene (PP) films (TiO 2/PP composite) are produced at ambient temperature. Particle/pore size match up is the key anchoring point to overcome the low affinity between hydrophilic materials and hydrophobic materials. With the hydrophilic TiO 2 catalyst evenly dispersed on a hydrophobic surface, the aqueous solution will selectively skip the substrate and wet the catalysts. Such a wettability-induced smart system maximizes the degrading activity of the TiO2 catalyst. In photodegrading reactions, the resulting TiO 2/PP composite film exhibits a 10 times higher activity in flow-type setup than the same TiO2 catalyst in a traditional batch-type setup.

Original languageEnglish
Pages (from-to)1480-1484
Number of pages5
Issue number8
Publication statusPublished - 1 Aug 2010
Externally publishedYes

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