Xiaofei Qu

Fabrication of TiO2/MS (M = Pb, Zn) core–shell coaxial nanotube arrays and their photocatalytic properties

In this work, TiO2/MS (M = Pb, Zn) core–shell coaxial nanotube arrays were prepared by a simple method of liquid deposition using anodic aluminium oxide templates. The mechanism of the formation of TiO2/MS (M = Pb, Zn) coaxial nanotubes is discussed here. Compared to bare TiO2 nanotubes, TiO2/PbS and TiO2/ZnS composite nanotubes showed improved photocatalytic properties and analysis of such results was also conducted.

Fabrication of ordered arrays of CNT/TiO2 nanotubes and their photocatalytic properties

In this work, fabrication and characterization of ordered arrays of CNT/TiO2 nanotubes imbedded in porous anodic aluminum oxide (AAO) membranes were reported. The coaxial core–shell structures were exploited for the photocatalytic degradation of organic pollutants, such as methyl orange. The presence of the CNT greatly enhanced the efficiency of photocatalytic activity compared with the bare TiO2 nanotubes. The key achievement of this work is to fabricate ordered arrays of CNT/TiO2 composite nanotubes with coaxial core–shell structures by using a simple, convenient, and environmentally friendly process. Further application of this CNT/TiO2 hybrid material in many fields could be hopefully expected.