Abstract
Titanium oxide films and powders are attached onto carbon cloths via RF reactive sputtering and an epoxy resin mixture, respectively. <TEX>$TiO_2$</TEX>/carbon composite materials were used to investigate the photoelectrochemical degradation of perchlorate ions in water. The energy band gaps of the RF-sputtered <TEX>$TiO_2$</TEX> thin films ranged from 3.35-3.44 eV. A photocurrent of the powdered <TEX>$TiO_2$</TEX> as illuminated by ultra-violet light for 30 min. was <TEX>$2.79\;mA/cm^2$</TEX>. Perchlorate ions in water were shown to be degradable by a UV-illuminated <TEX>$TiO_2$</TEX> powder/carbon/Nafion/carbon composite.
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