CAJ | 학술논문

以粗孔球形硅胶为载体，以聚乙二醇和二乙醇单乙醚的钛酸四丁酯无水乙醇溶液为浸涂液，用涂覆法制备了TiO2/SiO2光催化剂.用XRD，SEM和UV-Vis等对催化剂的物相、形貌及TiO2负载量进行了表征，并通过可溶性染料活性艳红X-3B的降解反应，考察了其光催化活性.实验结果表明，当选用16.79%TiO2/SiO2光催化剂时，活性艳红X-3B溶液的脱色率可达93%以上.
이조공구형규효위재체，이취을이순화이을순단을미적태산사정지무수을순용액위침도액，용도복법제비료TiO2/SiO2광최화제.용XRD，SEM화UV-Vis등대최화제적물상、형모급TiO2부재량진행료표정，병통과가용성염료활성염홍X-3B적강해반응，고찰료기광최화활성.실험결과표명，당선용16.79%TiO2/SiO2광최화제시，활성염홍X-3B용액적탈색솔가체93%이상.
TiO2/SiO2 thin film was prepa red by repeating the followingprocedure， first dipping porous round silica gel in Ti-solution of tetrabutyl titanium ethanol containing polyethylene glycol a nd diethylene glycol monoethylether, then calcinating at 600 ℃ for 2 h. The cry stal phase, the morphology, and the TiO2 amount on the beads were determined b y XRD, SEM, and UV-Vis, respectively. The photocatalytic activity of TiO2/SiO2 th in film with different TiO2 loadings was evaluated by degradation of dye X-3 B in aqueous solution. In comparison of TiO2/SiO2 containing w(TiO2)= 54.02% with that containing w(TiO2)=16.79%, the former has larger ave rage particle diameter and had undergone some phase transformation from anatase to r util e, but no phase transformation had been observed for the latter. Furthermore, wi th 16.79%-TiO2/SiO2 as a catalyst, the degradation of dye X-3B in aqueous solution with O2 flow had a decolorization ratio up to 93% in 1h.