CeO2/Nb6O17-NT复合物的制备及光催化活性研究

摘要

CeO2/Nb6O17-NT composite photocatalyst was prepared by sol-gel method.XRD and UV-vis DRS were used to characterize the structure and spectral response characteristics of the as-prepared catalysts, and the degradation rate of methylene blue (MB) in visible light was used to evaluate the catalytic performance.The experimental results show that the composite material has obvious responsiveness in visible light region and has excellent photodegradation activity of MB under visible light irradiation.%利用溶胶-凝胶法制备出CeO2/Nb6O17纳米管 (CeO2/Nb6O17-NT) 复合光催化剂.采用XRD、UV-visDRS等手段对制备的催化剂的结构和光谱响应特性进行表征, 并利用可见光下亚甲基蓝 (MB) 的降解率来评价催化剂的催化性能.结果表明, 复合材料在可见光区域有明显的响应, 在可见光照射下对MB具有优良的光降解活性.