太阳光活性的Ce/ZnO复合材料的制备及其表征
The Fabrication and Characterization of Sunlight-Active Ce/ZnO Composites

以竹纤维为模板,Zn(OAc)2？2H2O和Ce(NO3)3？6H2O为原料,采用模板法制备了一系列不同Ce掺杂量的Ce/ZnO复合材料.通过SEM、TG、FT-IR、XRD等方法对该复合材料的形貌和结构进行了表征.采取太阳光光照,以罗丹明B(Rhodamine B)的脱色降解率为指示模型,考察了浸泡时间和Ce掺杂量对该催化剂催化活性的影响.实验结果表明:浸泡3 h获得的前驱体在600 ℃下煅烧2 h制备的含Ce质量分数为1.0%的Ce/ZnO复合材料催化性能最佳,太阳光照射390 min时Rhodamine B降解率为92.61%.
A series of sunlight-active ZnO doped with different amounts of Ce are prepared by template method using Zn(OAc)2？2H2O、Ce(NO3)3？6H2O as materials and bamboo as the template and characterized by SEM,FT-IR,XRD,TG.The effects of dipping time and Ce doped amounts on the photocatalytic performance of Ce/ZnO composites are studied by using the degradation of Rhodamine B as the model reaction under sunlight condition.The experimental results show that the 1.0% Ce/ZnO composites prepared by calcining the precursor which is dipped for 3 h at 600 ℃ for 2 h makes degradation rate of Rhodamine B solution 92.61% under sunlight,illuminating 390 min