摘要
以硝酸铈和硝酸锆为前驱物,采用水热合成法成功合成了纳米复合材料Ce_xZr_yO_2,在汞灯光照射下评价了其对亚甲蓝(MB)的非均相光催化降解活性;与单纯的CeO_2及ZrO_2纳米材料比较发现,Ce_xZr_yO_2对MB的光催化降解效果有显著改善.当铈与锆的摩尔比为9∶1时,Ce_(0.9)Zr_(0.1)O_2纳米复合材料对MB的光降解效率最高,比未复合的纳米催化剂高约2倍.
The CexZryO2 nanocomposites were successfully synthesized by hydrothermal method using cerium nitrate and zirconium nitrate as precursors.Their heterogeneous photocatalytic activities for the degradation of methylene blue (MB) were evaluated under mercury lamp irradiation.Compared with pure CeO2 or ZrO2 nanomaterials,the photocatalytic degradation of MB by CexZryO2 was significantly improved.When the molar ratio of cerium to zirconium is 9:1,the photocatalytic efficiency of Ce0.9Zr0.1O2 for MB degradation is the highest,which is about two times higher than that of uncompleted nanocatalysts.
作者
李沛珅
王强
LI Pei-shen;WANG Qiang(Laboratory for Micro-sized Functional Materials、Department of Chemistry,Capital Normal University,Beijing 100048,China)
出处
《聊城大学学报（自然科学版）》
2019年第3期46-52,共7页
Journal of Liaocheng University:Natural Science Edition
基金
国家自然科学基金项目(21471103)资助
