| 分子印迹TiO2纳米管阵列的制备与选择性光电催化降解邻苯二甲酸二乙酯 |
| Preparation and Selective Photoelectrocatalytic Degradation of Diethyl Phthalate of Molecularly Imprinted TiO2 Nanotube Arrays |
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| 摘要: 以邻苯二甲酸二乙酯（DEP）为模板分子，在TiO2纳米管阵列（TNA）上沉积了能识别DEP分子的TiO2纳米颗粒，制备了DEP分子印迹型TNA（DM-TNA）。X射线衍射（XRD）测试表明，DM-TNA的晶体结构是锐钛矿。扫描电镜（SEM）测试显示颗粒大小约为20 nm的TiO2纳米颗粒均匀地涂覆在TNA的管壁上。光电催化降解DEP和2，4-二氯苯酚（DCP）的结果表明，DM-TNA降解DEP的活性高于非分子印迹TNA（NM-TNA），而DM-TNA降解DCP的活性低于NM-TNA。DM-TNA降解DEP的速率常数是NM-TNA的2.76倍。 |
| 关键词: 光催化 光降解 选择性 分子印迹 TiO2纳米管阵列 邻苯二甲酸二乙酯 |
| 基金项目: 国家自然科学基金（No.51572076）资助项目。 |
| Abstract: Using diethyl phthalate (DEP) as template, molecularly imprinted TiO2 nanoparticles were deposited on wall of TNA and DEP-molecularly-imprinted TNA (DM-TNA) was fabricated. X-ray diffraction (XRD) analysis demonstrated that crystal structure of DM-TNA was anatase. Scanning electron microscopy (SEM) measurements showed that TiO2 nanoparticles with a size about 20 nm were uniformly coated on the wall of TNA. The results of photoelectrocatalytic degradation of the mixed solution of DEP and 2,4-dichlorophenol (DCP) showed that the degradation activity of DEP on the DM-TNA was higher than that on non molecularly imprinted TNA (NM-TNA), while the degradation activity of DCP on the DM-TNA was lower than that on NM-TNA. The rate constant of DM-TNA for the degradation of DEP was 2.76 times that of NM-TNA. |
| Keywords: photocatalysis photodegradation selectivity molecular imprinting TiO2 nanotube array diethyl phthalate |
| 投稿时间：2019-11-19 修订日期：2020-03-20 |
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| 戴高鹏,周京慧,龙家豪,李尊,刘力.分子印迹TiO2纳米管阵列的制备与选择性光电催化降解邻苯二甲酸二乙酯[J].无机化学学报,2020,36(5):850-856. |
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