Gd^(3+)掺杂纳米TiO_2自然光催化降解甲基橙的研究

The Effect of the Doping of Gadolinium Ion on the Degradition of Methyl Orange by Natural Light Photocatalysis with Titania

以钛酸丁酯和氧化钆为原料 ,采用溶胶 -凝胶法制备了掺杂TiO2 光催化剂 ,并用XRD和TEM等手段对其进行表征 ,以甲基橙为目标降解物 ,考察了制备方法对掺杂TiO2 光催化效果的影响 .结果表明 ,适量的Gd3 + 掺杂能够显著提高TiO2 粒子的自然光催化降解能力 ,而且共沉淀法制备的掺杂TiO2 比负载法制备的TiO2 在自然光下具有较强的催化活性 .

With the material of tetrapropyl orthotitant and gadolinia,the doping titania photocatalyst is prepared by applying sol gel processing and indicated by the means of XRD and TEM.Using Methyl Orange as degradition object,the effect of the doping titania s photocatalysis is studied which is caused by the preparation.The results show that right amout gadoliniumions adulerated can evidently improve the ability of titania s photocatalysis degradition.Furthermore,doping titania prepared by coprecipitate has more ...