IFE based nanosensor composed of UCNPs and Fe(Ⅱ)-phenanthroline for detection of hypochlorous acid and periodic acid  

作　　者：Haining Song Haifeng Zhou Qianqian Zhuang Zexin Li Fenglei Sun Zhenlei Yuan Youxin Lou Guangjun Zhou Yujun Zhao 

机构地区：[1]School of Materials Science and Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China [2]State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China [3]State Key Laboratory of Biobased Material and Green Papermaking,School of Bioengineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China

出　　处：《Journal of Rare Earths》2023年第2期200-207,共8页稀土学报（英文版）

基　　金：Project supported by the Natural Science Foundation of Shandong Province(ZR2016EMM20,ZR2019PEM012);National Natural Science Foundation of China(21808114);the Foundation(ZZ20190310)of State Key Laboratory of Biobased Material and Green Papermaking。

摘　　要：Oxidizing CIO^(-)and IO_(4)^(-)exist widely in environment and are closely related to the health of organisms.Accordingly,fast,sensitive,and direct detection of the two species is significant.Using IFE in UCNPs@PAA and Fe(Ⅱ)-phenanthroline system,an elegant ratiometric fluorescent nanosensor,without noble metal nanoparticle,was designed for the detection of CIO-and IO4-.Fe(Ⅱ)-phenanthroline complex is used as fluorescent absorber,which can quench green light of UCNPs with gradually varied extent depending on the concentration of Fe(Ⅱ).The linear zone extends to 800 and 120μmol/L while the detection limit is 1.30 and 0.58μmol/L for NaCIO and NaIO_(4),respectively.Finally,the nanosensor was successfully applied to detect NaCIO and NaIO4spiked in milk,spring water,and tap water with good recoveries.

关 键 词：HYPOCHLORITE PERIODATE NANOSENSOR Upconversion nanoparticles Inner filter effect Rare earths 

分 类 号：TF845.6[冶金工程—有色金属冶金]