Fe 3+x-TiO2/Shell光催化剂的制备及其对石油的光催化降解

 以自制的贝壳基规整吸附体为载体，采用浸渍煅烧法制备了Fe ³⁺_x-TiO₂/Shell光催化剂。采用XRD、SEM-EDS和UV-Vis等技术对制备的Fe ³⁺_x-TiO₂/Shell光催化剂进行表征。以石油为降解对象，考察了Fe³⁺掺杂量、Fe ³⁺_x-TiO₂/Shell的负载次数及光照时间对Fe ³⁺_x-TiO₂/Shell光催化活性的影响。结果表明，Fe³⁺掺杂量为0.7%(m(Fe³⁺ )/m(TiO₂)×100%)、Fe ³⁺_0.7-TiO₂负载次数为4次时，制备的Fe ³⁺_0.7-TiO₂/Shell光催化剂的光催化活性最高，300 W碘钨灯照射16 h，石油的光催化降解率达76%。

Preparation of Fe3+x-TiO2/Shell and Photocatalytic Degradation of Oil Pollutant Suspension on the Ocean

Fe ³⁺_x-TiO₂/Shell photocatalysts with Fe³⁺ doped TiO₂ film supporting on the regular structured seashell-based adsorbent were successfully synthesized by wet-impregnation-calcination method, and characterized by XRD, SEM-EDS and UV-Vis techniques. The effects of Fe³⁺ doped amount(x), coated times of Fe ³⁺_x-TiO₂ and illumination time on photocatalytic activity of Fe ³⁺_x-TiO₂/Shell for oil degradation were investigated. The results showed that the Fe ³⁺_x-TiO₂/shell with four coated times ofFe ³⁺_x-TiO₂ possessed the highest photocatalytic activity for oil degradation. After 16 h illumination with 300 W iodine-tungsten lamp, the oil degradation rate on the seawater reached 76%.