分子印迹TiO2的制备及性能研究
Industrial Safety and Environmental Protection(2019)
Abstract
以水杨酸为模板分子制备了分子印迹纳米TiO2材料,对分子印迹前后的纳米材料降解水杨酸的催化活性进行测定,并用SEM,BET和UV-Vis等对其微观结构及形貌特征进行表征.由实验结果分析可得,分子印迹改性对纳米TiO2粉体的催化性能有显著影响.分子印迹TiO2紫外光下催化降解水杨酸溶液,180 min脱色率达到97%以上.在苯甲酸、水杨酸混合液中进行光催化降解,分子印迹TiO2优先降解水杨酸,选择因子达到2.37.因而分子印迹改性有效地改善了TiO2的催化效率和降解的选择性.
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