title: A bio-inspired inner-motile photocatalyst film: a magnetically actuated artificial cilia photocatalyst.
abstract: A new type of inner-motile photocatalyst film is explored to enhance photocatalytic performance using magnetically actuated artificial cilia. The inner-motile photocatalyst film is capable of generating flow and mixing on the microscale because it produces a motion similar to that of natural cilia when it is subjected to a rotational magnetic field. Compared with traditional photocatalyst films, the inner-motile photocatalyst film exhibits the unique ability of microfluidic manipulation. It uses an impactful and self-contained design to accelerate interior mass transfer and desorption of degradation species. Moreover, the special cilia-like structures increase the surface area and light absorption. Consequently, the photocatalytic activity of the inner-motile photocatalyst film is dramatically improved to approximately 3.0 times that of the traditional planar film. The inner-motile photocatalyst film also exhibits high photocatalytic durability and can be reused several times with ease. Furthermore, this feasible yet versatile platform can be extended to other photocatalyst systems, such as TiO2, P25, ZnO, and Co3O4 systems, to improve their photocatalytic performance.
authors.affiliation: State Key Laboratory of Materials-Orient Chemical Engineering, College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, People's Republic of China. chhlu@njtech.edu.cn zzxu@njtech.edu.cn.
authors.forename: Dunpu
authors.initials: D
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Fengping
authors.initials: F
authors.lastname: Peng
authors.forename: Jiahui
authors.initials: J
authors.lastname: Kou
authors.forename: Yaru
authors.initials: Y
authors.lastname: Ni
authors.forename: Chunhua
authors.initials: C
authors.lastname: Lu
authors.forename: Zhongzi
authors.initials: Z
authors.lastname: Xu