CAJ | 학술논문

采用溶胶-凝胶法分别制备了薄膜状TiO2／γ-Al2O3和粉末状TiO2光催化剂；利用扫描电镜、Ｘ射线衍射及降解苯酚的催化活性评价等手段对薄膜状TiO2／γ-Al2O3和粉末状TiO2进行了表征。实验结果表明，500℃热处理3h时，TiO2的晶型是锐钛矿型，用于光催化降解苯酚时显示了较高的活性，且薄膜状TiO2／γ-Al2O3的光催化活性高于粉末状TiO2。
채용용효-응효법분별제비료박막상TiO2／γ-Al2O3화분말상TiO2광최화제；이용소묘전경、Ｘ사선연사급강해분분적최화활성평개등수단대박막상TiO2／γ-Al2O3화분말상TiO2진행료표정。실험결과표명，500℃열처리3h시，TiO2적정형시예태광형，용우광최화강해분분시현시료교고적활성，차박막상TiO2／γ-Al2O3적광최화활성고우분말상TiO2。
Using Sol-Gel method, the photocatalysts of film type TiO2supported on γ-Al2O3 and powder type TiO2 were prepared and characterized by the techniques of XRD , SEM and activity evaluation for photocatalytic decomposition of phenol. The results showed that the complete crystal form of anatase titanium dioxide was formed, when the gel underwent calcinations at the temperature of 500℃ for 3 hours ,and this crystal form of TiO2 as catalyst showed higher activity for photocatalytic decomposition of phenol. The activity of TiO2 film /γ-Al2O3 was superior to that of TiO2 powder.