CuTA纳米酶的制备及其用于过氧化氢检测
PREPARATION OF CuTA NANOZYMES AND ITS APPLICATION IN THE DETECTION OF HYDROGEN PEROXIDE
刘雪霞 1彭小婷 2盛艳茹 2王志军2
作者信息
- 1. 皖南医学院法医学院,安徽,芜湖 241002
- 2. 井冈山大学化学化工学院,江西,吉安 343009
- 折叠
摘要
以五水硫酸铜(CuSO4·5H2O)和单宁酸(Tannic acid,TA)为原料,通过一步法制备得到单宁酸铜(CuTA)纳米片.由材料的红外、扫描电镜结果可知,本实验成功制备了CuTA.研究表明,所制备材料可催化过氧化氢(H2O2)产生O2,据此本研究建立了一种比色分析方法用于检测H2O2,并优化了氧化反应的显色条件.在最优条件下,H2O2的检测线性范围为 400～1400 μM,检出限为 5.2 μM.将本方法用于检测实际样品牙膏中的H2O2,回收率可达 96.6%～102.2%.研究结果表明,所构建的比色传感器可实现对H2O2的定量检测.
Abstract
The CuTA nanosheets were prepared by a one-step synthesis method using copper sulfate pentahydrate(CuSO4·5H2O)and tannic acid(TA)as the raw materials.The results of FTIR and SEM demonstrated that the copper tannate nanozymes(CuTA NMs)were successfully synthesized.The prepared materials can catalyze hydrogen peroxide(H2O2)to produce oxygen(O2).Based on this,a colorimetric analysis method for the determination of H2O2 was established,and the color conditions of the oxidizing reaction were optimized.Under the optimum conditions,the linear range for the determination of H2O2 was 400～1400 μM,and the detection limit of 5.2 μM.The established method was used for the detection of H2O2 in toothpaste with recoveries of 96.6%～102.2%.Therefore,the CuTA NMs colorimetric sensing detector can achieve quantitative detection of H2O2.
关键词
单宁酸铜/纳米酶/过氧化氢/比色检测/牙膏Key words
copper tannate/nanozymes/hydrogen peroxide/colorimetric determination/toothpaste引用本文复制引用
基金项目
国家自然科学基金项目(21764007)
江西省教育厅科技计划项目(GJJ2201637)
井冈山大学博士科研启动项目(JZB15015)
井冈山大学博士科研启动项目(JZB15003)
皖南医学院博士科研启动基金项目(WYRCQD2023026)
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据