金属有机框架(MOF)在光学传感方面得到了广泛的应用,同时量子点(QD)也具有优异的光学性能,可将其引入到MOF中,提升其光学活性。因为MOF自身具有较大的孔径可以容纳QD,可以充分避免QD聚集而导致光学活性降低的问题。QD@MOF复合材料结合了QD和MOF优异的光学性能和特异性识别等优点,提升了复合材料在荧光传感器领域的灵敏度和选择性。综述了合成QD@MOF复合材料常见的3种方法:瓶中船法、瓶绕船法和物理混合法。及QD@MOF材料作为荧光传感器在检验金属离子、生物分子、气体、硝基化合物等物质的应用。还简要讨论了目前所面临的问题,及未来的发展方向。
Metal-organic frameworks (MOFs) have been widely used in optical sensing,and quantum dots (QDs) also have excellent optical properties,which can be introduced into MOFs to enhance their optical activity.Because MOFs have a larger pore size to accommodate QDs,they can effectively avoid the reduction of optical activity caused by QD aggregation.QD@MOF composite materials combine the advantages of excellent optical properties and specific recognition of QDs and MOFs,enhancing the sensitivity and selectivity of composite materials in the field of fluorescence sensors.This paper reviewed three common methods for synthesizing QD@MOF composite materials:ship in bottle method,ship-around-bottle method,and physical mixing method.It also summarized the application of QD@MOF materials for fluorescent sensors in detecting substances such as metal ions,biomolecules,gases,nitro compounds and other substances.Finally,it briefly discussed the current problems and future development directions.
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基金资助
国家自然科学青年科学基金项目(21804140);“十三五”国家重点研发计划项目(2016YFC0800705);公安部科技强警基础工作专项(2022JC02);辽宁省应用基础研究计划项目(2023JF12/10300097);沈阳市中青年科技创新人才支持计划项目(RC220480);辽宁省“百千万人才工程”项目资助(辽人社函(2021)222号);中国刑事警察学院科学研究项目(D2022044);中国刑事警察学院校级课题(2022XKGJ0105);中国刑事警察学院科学研究项目(2024YCYB48)
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