A smart MXene-copolymeric molecularly imprinted hydrogel with dual-response and photothermal conversion performance for specific recognition of cis-diol compounds
作者机构：Beijing Key Laboratory of Lignocellulosic ChemistryCollege of Material Science and TechnologyBeijing Forestry UniversityBeijing 100083China School of ScienceBeijing Jiaotong UniversityBeijing 100044China MOE Engineering Research Center of Forestry Biomass Materials and BioenergyBeijing Forestry UniversityBeijing 100083China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2022年第15卷第3期
页 面：2764-2772页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金：the National Natural Science Foundation of China(No.21978024) Beijing Natural Science Foundation(No.2202034) the National Key R&D Program of China(No.2019YFB1309703)
主 题：functional MXene photothermal conversion molecular imprinting temperature/pH response specific recognition
摘 要：In this work,a novel MXene-copolymeric molecularly imprinted hydrogel(FMMIH)with temperature/pH dual response and photothermal conversion performance for selective recognition of cis-diol compounds is successfully *** MXene becomes an important part of the hydrogel’s skeleton by participating in the free radical polymerization ***,FMMIH exhibits improved mechanical properties and great photothermal conversion ***,based on the temperature/pH dual response,FMMIH can realize the controllable capture and release of ginsenoside Rb1 with cis diol structures through dual recognitions of functional groups and geometric *** the conditions of pH 8.5 and 25℃,the adsorption capacity of FMMIH is 26.3 mg·g^(-1) and the imprinting factor is 16.4,showing a good imprinting *** is worth noting that the volume shrinkage caused by photothermal conversion of the hydrogel is conducive to the elution of template molecules and greatly saves the time of desorption(the desorption efficiency is as high as 89.4%under light conditions for 30 min,which is 3.7 times in dark conditions).These excellent properties make it possible to have broad prospects in many fields such as separation of cis-diol compounds,drug delivery systems,and biosensors.
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