title: Hydrophilic TiO2 porous spheres anchored on hydrophobic polypropylene membrane for wettability induced high photodegrading activities.
abstract: TiO(2) 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 TiO(2) catalyst. In photodegrading reactions, the resulting TiO(2)/PP composite film exhibits a 10 times higher activity in flow-type setup than the same TiO(2) catalyst in a traditional batch-type setup.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
authors.forename: Fang
authors.initials: F
authors.lastname: Niu
authors.forename: Le-Sheng
authors.initials: LS
authors.lastname: Zhang
authors.forename: Chao-Qiu
authors.initials: CQ
authors.lastname: Chen
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Lin
authors.initials: L
authors.lastname: Li
authors.forename: Wei-Guo
authors.initials: WG
authors.lastname: Song
authors.forename: Lei
authors.initials: L
authors.lastname: Jiang
mesh_terms: D002384:Catalysis; D004396:Coloring Agents / Q000737:chemistry; D003224:Congo Red / Q000737:chemistry; D057927:Hydrophobic and Hydrophilic Interactions; D054118:Nanospheres / Q000737:chemistry*; D010316:Particle Size; D010782:Photolysis; D011126:Polypropylenes / Q000737:chemistry*; D016062:Porosity; D014025:Titanium / Q000737:chemistry*; D017155:Wettability
chemical_list: D004396:Coloring Agents; D011126:Polypropylenes; C009495:titanium dioxide; D003224:Congo Red; D014025:Titanium