- 作者: 江慧真 ; 許志明 ; 王忠茂
- 作者服務機構: 新竹師範學院數理教育系
- 中文摘要: A variety of chlorinated organic wastes were photodecomposed with p-CuO-modified TiO/sub 2/ particles(denoted CuO/TiO/sub 2/). Based on the photoactivity measured in oxygenated solutions containing sodium 2,2'- dichloropropionate, the photoactivity of TiO/sub 2/ is significantly enhanced with p-CuO loading; in the case with 0.4 wt% of CuO, the activity is increased by a factor of 4. Photochemical-TiO/sub 2/-slurry cell techniques and voltammetric characterizations suggest this CuO-promoted enhancement is likely to result from the acceleration of oxygen reduction at TiO/sub 2/ via Cu/sup II/O/Cu/sup I/O. Long-term tests showed that these CuO/TiO/sub 2/ particles are photochemically robust; within 100-hours' continuous photolysis, insignificant loss in photoactivity was detected. However, increasing loading of p-CuO may jeopardize the photoactivity, due to the deterioration in the TiO/sub 2/ absorbability of UV irradiation.
- 英文摘要: --
- 中文關鍵字: Titanium Dioxide; Copper Oxide; Photodegradation; Chlorinated Organics; Photochemical-Slurry Cell
- 英文關鍵字: 二氧化鈦;氧化銅;感光解變;含氯有機物;光化學泥漿單位