| Title |
Comparative Sonophotocatalysis and Photocatalysis for Chloroform Degradation |
| Authors |
박재홍 ( Jae Hong Park ) ; 조일형 ( Il Hyoung Cho ) |
| Keywords |
Sonophotocatalysis; Photocatalysis; Chloroform |
| Abstract |
Comparison between photocatalysis (UV+TiO₂) and sonophotocatalysis (Sonication+UV+TiO₂) were performed in lab-scale experiments for the treatment of chloroform. The effect of operational parameters, i.e., initial chloroform concentration, TiO₂ concentration, UV light intensity and sonication time on the degradation rate of aqueous solution of chloroform has been examined. The optimal conditions for photocatalysis and sonophotocatalysis processes were determined: initial chloroform concentration was 25 ㎎/L, the concentration of TiO₂ was 200 ㎎/L and UV light intensity was 6.630 mW/㎠, respectively. The optimal sonication time on sonophotocatalysis process was 90 min. Under the optimal conditions, sonophotocatalysis was effective for inducing faster degradation of the chloroform. |