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结合分子印迹与光催化技术，制备了一种对环丙沙星(CIP)具有选择性催化降解功能的分子印迹型复合光催化材料(MIL-101(Fe)@IPA(MIP))。在此基础上，对该材料的形貌特征与结构性能进行了表征，并考察了不同环境因素对MIL-101(Fe)@IPA(MIP)吸附降解性能的影响。结果表明，MIL-101(Fe)@IPA(MIP)对CIP的饱和吸附量达95.3 mg/g，印迹因子α高达3.5。吸附动力学符合拟二级动力学模型(R2=0.9842)，等温吸附过程符合Freundlich模型(R2=0.9798)。此外，吸附和重复使用实验表明该材料具有高选择性识别能力和良好的可循环使用性能，经连续5个吸附-解吸循环使用后，对CIP的吸附量为85 mg/g。在MIL-101(Fe)@IPA(MIP)/UV/H2O2光催化系统中反应60 min后，对CIP的降解效率达100%，铁离子浸出量仅为0.051 mg/L。本研究为基于铁基金属有机骨架材料在水环境中的靶向吸附和催化降解污染物提供了新策略。
Abstract：A molecularly imprinted composite photocatalyst (MIL-101(Fe)@IPA(MIP)) for the selective catalytic degradation of ciprofloxacin (CIP) was successfully fabricated by integrating molecular imprinting technology with photocatalytic functionality. The morphology and structural properties of MIL-101(Fe)@IPA(MIP) were systematically characterized， and the effects of various environmental factors on its adsorption and degradation performances were comprehensively evaluated. MIL?101(Fe)@IPA(MIP) exhibits a saturated adsorption capacity of 95.3 mg/g for CIP， with an imprinting factor up to 3.5. The adsorption kinetics fit well to the pseudo?second-order model (R2 = 0.9842)， whereas the isothermal adsorption process followed the Freundlich model (R2 = 0.9798)， indicating heterogeneous surface adsorption. Furthermore， adsorption and regeneration experiments confirm the material's high selective recognition capability and excellent reusability， maintaining an adsorption capacity of 85 mg/g after five consecutive adsorption–desorption cycles. In a MIL-101(Fe)@IPA(MIP)/UV/H?O? photocatalytic system， the complete degradation of CIP was achieved within 60 min， with negligible iron leaching (0.051 mg/L)， highlighting the high structural stability and catalytic efficiency of the photocatalyst. This paper presents a novel strategy for the targeted adsorption and catalytic degradation of pollutants in aquatic environments using Fe-based metal–organic framework materials.
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基本信息:
DOI：10.16026/j.cnki.iea.2026010002
中图分类号:O643.36;O644.1;O647.3;X703
引用信息:
[1]牙建雄,韦翠,王浩,等.高水稳定性分子印迹MIL-101(Fe)选择性催化降解性能研究[J].离子交换与吸附().DOI:10.16026/j.cnki.iea.2026010002.
基金信息:
国家自然项目（项目号21968006）
2026-05-22
2026-05-22
2026-05-22