聊城大学学报（自然科学版）2024，Vol.37Issue(2)：62-68,7.DOI:10.19728/j.issn1672-6634.2023060002
Fe-N-C单原子纳米酶用于比色-电化学法检测H2O2
Fe-N-C Single-Atom Nanozymes for Colorimetric and Electrochemical Detection of H2O2
摘要
Abstract
Nanomaterials with enzyme-like activity,namely nanozymes,have attracted extensive attention in the field of biocatalytics.Atomically dispersed Fe-N-C monoatomic catalysts,defined as Fe-N-C single-atom nanozymes,have a similar structure to some heme enzymes and can therefore mimic enzymatic activi-ty.Herein,Fe-N-C single-atom nanozymes were prepared by the silica template method,and the layered porous nanostructure accelerated the electron transfer and further improved the reaction kinetics.Due to its inherent physicochemical properties and chemical properties,Fe-N-C shows high activity of peroxidase mimics.In addition,Fe-N-C nanozyme still maintains high activity under high temperature and strong acid and base conditions,indicating that it has good stability.The hydrogen peroxide(H2O2)colorimetric sen-sor with a linear range of 0.05～100 mmol/L and detection limit of 0.039 mmol/L was prepared by using Fe-N-C nanozyme.In addition,the Fe-N-C nanozyme can also be applied to the electrochemical detection of H2O2.Therefore,the H2O2 colorimetric system based on Fe-N-C developed in this work has broad ap-plication prospects in clinical medicine and food environment analysis.关键词
Fe-N-C/单原子纳米酶/过氧化氢/比色检测/电化学检测Key words
Fe-N-C/single-atom nanozyme/hydrogen peroxide/colorimetric detection/electrochemical detection分类
化学化工引用本文复制引用
胡丽君,李佳慧,翟艳玲..Fe-N-C单原子纳米酶用于比色-电化学法检测H2O2[J].聊城大学学报（自然科学版）,2024,37(2):62-68,7.基金项目
国家自然科学基金青年项目(21804074)资助 （21804074）
