Common molecular imprinted photocatalysts are usually prepared in highly toxic organic solvent medium, which will be disturbed by water molecules and swelling differences when used for selective recognition in the aqueous phase. In this study, an ionic liquid (IL) was used as the functional monomer and functionalized P25@IL heterojunction molecular imprinted photocatalytic nanoreactor, referred to as imprinted P25@IL nanoreactor, were prepared via the aqueous-phase microwave polymerization strategy. Imidazole-based IL cations can provide π electron clouds, and side chains are easily functionalized and modified, resulting in strong interactions such as π-π and ion dipoles being formed between IL and levofloxacin hydrochloride (LEV), which can overcome the interference of water molecules and achieve better selective adsorption and degradation of LEV in aqueous medium. The selectivity coefficient of imprinted P25@IL nanoreactor relative to P25 and functionalized P25@IL heterojunction molecular non-imprinted photocatalyst (non-imprinted P25@IL photocatalyst) were 2.69 and 2.26, respectively. More importantly, with the formation of IL-P25 heterojunction and surface imprinted layer, the photocatalytic performance of imprinted P25@IL nanoreactor was 2.33 times higher than that of P25. Our findings offer a novel approach to the synthesis of water-soluble functional monomers and the aqueous-phase synthesis of molecular imprinted photocatalytic materials.

常见的分子印迹光催化剂通常在剧毒有机溶剂介质中制备，在水相中用于选择性识别时会受到水分子和溶胀差异的干扰。在本研究中，以离子液体（IL）为功能单体，通过水相微波聚合策略制备了功能化的 P25@IL 异质结分子印迹光催化纳米反应器，称为印迹 P25@IL 纳米反应器。咪唑基离子液体阳离子可提供π电子云，侧链易于功能化和修饰，导致离子液体与盐酸左氧氟沙星（LEV）之间形成π-π和离子偶极等强相互作用，可以克服水分子的干扰，实现对水介质中LEV更好的选择性吸附和降解。印迹P25@IL纳米反应器相对于P25和功能化P25@IL异质结分子非印迹光催化剂（non-imprinted P25@IL photocatalyst）的选择性系数分别为2.69和2.26。更重要的是，随着IL-P25异质结和表面印迹层的形成，印迹P25@IL纳米反应器的光催化性能比P25高2.33倍。我们的研究结果为水溶性功能单体的合成和分子印迹光催化材料的水相合成提供了一种新方法。印迹P25@IL纳米反应器相对于P25和功能化P25@IL异质结分子非印迹光催化剂（non-imprinted P25@IL photocatalyst）的选择性系数分别为2.69和2.26。更重要的是，随着IL-P25异质结和表面印迹层的形成，印迹P25@IL纳米反应器的光催化性能比P25高2.33倍。我们的研究结果为水溶性功能单体的合成和分子印迹光催化材料的水相合成提供了一种新方法。印迹P25@IL纳米反应器相对于P25和功能化P25@IL异质结分子非印迹光催化剂（non-imprinted P25@IL photocatalyst）的选择性系数分别为2.69和2.26。更重要的是，随着IL-P25异质结和表面印迹层的形成，印迹P25@IL纳米反应器的光催化性能比P25高2.33倍。我们的研究结果为水溶性功能单体的合成和分子印迹光催化材料的水相合成提供了一种新方法。印迹P25@IL纳米反应器的光催化性能是P25的2.33倍。我们的研究结果为水溶性功能单体的合成和分子印迹光催化材料的水相合成提供了一种新方法。印迹P25@IL纳米反应器的光催化性能是P25的2.33倍。我们的研究结果为水溶性功能单体的合成和分子印迹光催化材料的水相合成提供了一种新方法。