Integrated treatment of tetracycline in complex environments with MIPs-based Fe3O4-Cu2O-Au nanocomposites: Selective SERS detection and targeted photocatalytic degradation

Wang, Xiaohan; Wang, Jingru; Zhao, Wenshi; Guo, Rui; Cui, Sicheng; Huang, Jie; Lu, Jiaxin; Liu, He; Liu, Yang

doi:10.1016/j.jallcom.2024.173796

Cited by 2 publications

(1 citation statement)

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“…However, the selectivity of the ferrous MOFs is poor, and they are unable to remove low concentrations of pollutants with specificity [24][25][26][27][28][29][30][31]. Molecularly imprinted polymers (MIPs) have been widely used to separate and enrich PAEs, as they possess specific recognition sites that are complementary to the size and shape of the template molecules [32][33][34][35][36][37]. These studies demonstrate that MOF-MIP materials have a high potential for separation and enrichment of molecules, as they combine the high selectivity of MIPs with the high adsorption capacity of MOFs.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Magnetic Molecularly Imprinted Polymers for Selective Extraction of Dibutyl Phthalates in Food Matrices

Li,

Lu,

Wang

et al. 2024

Foods

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In this study, a novel magnetic molecularly imprinted polymeric material (Fe3O4@MOF@MIP-160) with a metal-organic backbone (Fe3O4@MOF) carrier was prepared using dibutyl phthalate (DBP) as a template. The material can be used for the efficient, rapid, and selective extraction of trace amounts of phthalic acid esters (PAEs) in food and can detect them via gas chromatography-mass spectrometry (GC-MS). The synthesis conditions of the materials were optimized to prepare the Fe3O4@MOF@MIP160 with the highest adsorption performance. Transmission electron microscopy (TEM), Fourier Transform Infrared Spectra (FT-IR), Vibration Sample Magnetic (VSM), and the Brunauer–Emmett–Teller (BET) method were used to characterize the materials. Compared with Fe3O4@MOF and the magnetic non-imprinted polymeric material (Fe3O4@MOF@NIP), Fe3O4@MOF@MIP-160 possesses the advantages of easy and rapid manipulation of magnetic materials, the advantages of high specific surface area and the stability of metal–organic frameworks, and the advantages of high selectivity of molecularly imprinted polymers. Fe3O4@MOF@MIP-160 has good recognition and adsorption capacity for di-butyl phthalate (DBP) and diethylhexyl phthalate (DEHP): the adsorption capacity for DBP and DEHP is 260 mg·g−1 and 240.2 mg·g−1, and the adsorption rate is fast (reaching equilibrium in about 20 min). Additionally, Fe3O4@MOF@MIP160 could be recycled six times, making it cost-effective, easy to operate, and time-saving as compared to traditional solid-phase extraction materials. The phthalate ester content in drinking water, fruit juice, and white wine was analyzed, with recoveries ranging from 70.3% to 100.7%. This proved that Fe3O4@MOF@MIP160 was suitable for detecting and removing PAEs from food matrices.

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