CAJ | 학술논문

以钛酸四丁酯为原料，在高浓度的硝酸溶液条件下，采用低温水解方法合成微晶TiO2光催化剂，分别采用XRD、FTTR、SEM、TEM、PL等测试技术对催化剂进行了表征。实验结果表明：在低温85℃条件下，加入65mL硝酸可以制得结构和形貌不同的HO2微晶，该材料在225nm波长诱导下表现出420砌的发光性能。所得TiO2微晶60min之内可在太阳光照射条件下将25mg／L的甲基橙完全分解。
이태산사정지위원료，재고농도적초산용액조건하，채용저온수해방법합성미정TiO2광최화제，분별채용XRD、FTTR、SEM、TEM、PL등측시기술대최화제진행료표정。실험결과표명：재저온85℃조건하，가입65mL초산가이제득결구화형모불동적HO2미정，해재료재225nm파장유도하표현출420체적발광성능。소득TiO2미정60min지내가재태양광조사조건하장25mg／L적갑기등완전분해。
The photo -catalyst, ce -doped TiO2 microcrystal with different Ta doping concentrations synthe- tized by using tetrabutyl titanate as raw material in low temperature, was represented with some measuring and tes- ting techniques, such as XRD, FITR, SEM, TEM, PL, and DRS. At the same time, the degradation perform- ance of microcrystalline TiO2 on methyl orange was studied in ordinary sunlight conditions. The result of this ex- periment shows that microcrystalline TiO2 at 85℃, Ce doped into TiO2 lattice causes changes in TiO2 crystal struc- ture. Meanwhile, the light absorption of catalyst can be extending to the visible light. When the concentration of Ce is 0.75% , the methyl orange can be degraded within 60 minutes under visible radiation.