Polymer material-supported titania nanofibers with different polyvinylpyrrolidone to TiO sub(2) ratios for degradation of vaporous trichloroethylene

Polymer-supported TiO sub(2) nanofibers with different polyvinylpyrrolidone (PVP)-to-TiO sub(2) (PT) ratios were synthesized and their photocatalytic efficiencies were examined for the decomposition of trichloroethylene (TCE). The spectral results of the TiO sub(2) nanofibers confirmed the presence of TiO sub(2) crystal phases in the nanofibers. The TiO sub(2) nanofiber with the highest PT ratio of 1:1.3 showed the highest TCE decomposition (94%), followed by TiO sub(2) nanofibers with PT ratios of 1:0.7 (91%), 1:0.35 (88%), and 1:0.1 (84%). The conditions of low input concentration and humidity were suggested for the optimal decomposition of TCE. Consequently, the TiO sub(2) nanofiber webs could be used effectively to decompose TCE.