Suppressed recombination of electrons and holes and its role on the improvement of photoreactivity of flame-synthesized TiO2 nanopowders

Jie H; Park H; Chae KH; Anpo M; Park JK

Chemical Physics Letters, Vol.470, No.4-6, 269-274, 2009

DOI10.1016/j.cplett.2009.01.065 Export Citation

Suppressed recombination of electrons and holes and its role on the improvement of photoreactivity of flame-synthesized TiO2 nanopowders

Jie H, Park H, Chae KH, Anpo M, Park JK

An in-situ NEXAFS study was performed to directly investigate the change in the hole structures in the conduction band of TiO2 nanopowders synthesized using a flame method under UV irradiation. The anatase/rutile phase boundary was found to suppress the hole-electron recombination, leading to improved photoreactivity of TiO2 nanopowders. (C) 2009 Elsevier B. V. All rights reserved.