CAJ | 학술논문

在应用溶胶-凝胶法制备TiO_2薄膜中,通过钛酸丁酯与结晶硫酸高铈(和三氧化二镧)混合反应,使薄膜中掺杂了一定量的Ce(La)离子.经对甲醛的光催化性能实验以及XRD Rietveld(全谱图拟合)结构分析表明:控制两种元素的加入量和热处理的温度,能够使薄膜的晶体和微结构发生变化,从而使TiO_2的催化性能得以大幅度提高.
재응용용효-응효법제비TiO_2박막중,통과태산정지여결정류산고시(화삼양화이란)혼합반응,사박막중참잡료일정량적Ce(La)리자.경대갑철적광최화성능실험이급XRD Rietveld(전보도의합)결구분석표명:공제량충원소적가입량화열처리적온도,능구사박막적정체화미결구발생변화,종이사TiO_2적최화성능득이대폭도제고.
TiO_2 thin films with Ce-doping and La-doping were prepared by sol-gel method through the mixed reaction of tetrabutyt titanate with ceric sulfate crystal (and lanthanum sesquioxide).The photocatalytic experiment to the formaldehyde and the XRD structural analysis with Rietveld (whole-pattern fitting) method show that crystal and microstructure of thin films change with doping quantity and heat treatment temperature, thus catalytic performance of TiO_2 is improved substantially at optimum conditions.