磁性β-环糊精聚合物/TiO_2的制备及光催化性能

Experimentally Obtaining Excellent Photocatalytic Properties through Preparing New Magnetic β-Cyclodextrin Polymer/TiO_2

为制备磁性环境下容易分离的新型光催化剂,制备了磁性β-环糊精聚合物/TiO2,采用IR、XRD、SEM和振动样品磁强计(VSM)对合成的磁性杂化材料进行了表征。结果表明:合成的新型杂化材料不仅具有环糊精特征结构和TiO2的无机组分,并且具有很好的磁性能。以甲基橙溶液为目标降解物考察了光催化剂的活性,结果表明磁性β-环糊精聚合物/TiO2的催化效率是TiO2的2.4倍。考察了催化剂用量和催化时间对光催化性能的影响,实验证明:当催化剂用量是0.8g/L及光催化时间为8 h时,材料表现出更为优良的光催化性能。

Aim. The introduction of the full paper reviews a number of papers in the open literature and then proposes obtaining excellent photocatalytic properties. Sections 1 and 2 explain how we obtain them. Section 1 explains how we perform our experiments; subsection 1.2 is worth noticing, particularly subsubseetion 1.2. 3. Section 2 presents experimental results, given in Figs. 1 through 7, and their analysis; its core consists of： （ 1 ） new hybrid materials not only have the structure of β-CD organic components and TiO2 inorganic components, but also have good magnetic properties; （2） the photocatalytic activity of as-prepared composite was tested through the degradation of methyl orange solution; the result is that the photodegradation percentage of magneticβ-Cyclodextrin polymer/TiO2 is 2.4 times higher than that of TiO2 ; （3） when the amount of magnetic β-Cyclodextrin Polymer/TiO2 is 0.8g/L and catalysis time is 8h, our new material shows excellent photocatalytic activity.