摘要
本文提出了一种以豆荚和洋葱两种天然生物质为原料制备硫、氮共掺杂荧光碳点(S,N/CDs)的绿色方法。通过对它们进行简单的水热处理,制备了蓝色发射CDs,Fe^(3+)能有效地淬灭S、N/CDs。在最佳条件下,对Fe^(3+)检测的线性范围从0.5～300μmol/L,检出限为112 nmol/L。将该方法应用于河水和自来水样品中Fe^(3+)的检测,回收率为96.0%～102.0%,精密度为4.2%以下。本文提出的方法简单、绿色,能够满足环境样品中Fe^(3+)离子的监测要求。
A green method for preparation of sulfur,nitrogen co-doped fluorescent carbon dots(S,N/CDs)originated from two natural biomass was proposed.By simple hydrothermal heating of bean pods and onion,blue emission CDs were prepared,and Fe^3+can effectively quench the as-prepared S,N/CDs.Under optimum conditions,the linear range for Fe 3+detection is ranging from 0.5 to 300μmol/L with a detection limit of 112 nmol/L.The developed method was applied for detection of Fe^3+in river water and tap water samples.Satisfactory recoveries ranging from 96.0 to 102.0%with precision below 4.2%were obtained.The simple and green approach proposed here could meet the requirements for the monitoring of metal ions in environmental samples.
作者
王慧慧
原琳
王东
张国亮
赵凯
徐守芳
Wang Huihui;Yuan Lin;Wang Dong;Zhang Guoliang;Zhao Kai;Xu Shoufang(Linyi University,Linyi276005,China)
出处
《山东化工》
CAS
2019年第7期101-102,104,共3页
Shandong Chemical Industry
基金
国家级大学生创新创业项目(201810452023)
关键词
硫氮掺杂碳点
绿色制备
FE^3+
S and N codoped carbon dots
green preparation
ferric ions
