A new Eu-MOF for ratiometrically fluorescent detection toward quinolone antibiotics and selective detection toward tetracycline antibiotics  

作　　者：Chao-Yang Wang Chong-Chen Wang Xiu-Wu Zhang Xue-Ying Ren Baoyi Yu Peng Wang Zi-Xuan Zhao Huifen Fu 

机构地区：[1]Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation/Beijing Energy Conservation&Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center,Beijing University of Civil Engineering and Architecture,Beijing 100044,China [2]Key Laboratory of Urban Agriculture(North China),Ministry of Agriculture,College of Biological Sciences Engineering,Beijing University of Agriculture,Beijing 102206,China

出　　处：《Chinese Chemical Letters》2022年第3期1353-1357,共5页中国化学快报（英文版）

基　　金：supported by National Natural Science Foundation of China (Nos. 51878023 and 21806008);Beijing Talent Project (No. 2020A27);The Fundamental Research Funds for Beijing University of Civil Engineering and Architecture (No.X20147/X20141/X20135/X20146)。

摘　　要：Development of new self-calibrating fluorescent sensing methods has been a popular research field with the aim of protecting the human health and environment sustainability. In this work, a novel Eu-based metal organic framework(MOF) Eu(2,6-NDC)(COO)(BUC-88) was developed by employing 2,6-NDC(2,6-naphthalenedicarboxylic acid) as bridging ligands. BUC-88 performed different sensing process toward quinolone antibiotics and tetracyclines antibiotics in terms of fluorescence intensity and color. BUC-88exhibited excellent selectivity and sensitivity detection property toward enrofloxacin(ENR), norfloxacin(NOR) and ciprofloxacin(CIP) over other Pharmaceutical and Personal Care Products(PPCPs), accomplishing the detection limit of 0.12 μmol/L, 0.52 μmol/L, 0.75 μmol/L, respectively. Notably, BUC-88 acted as an excellent fluorescence sensor for tetracyclines antibiotics with fast response time(less than 1 s), high selectivity and sensitivity(LODs = 0.08 μmol/L). The fluorescent detection method was successfully used for visual and ultrasensitive detection of ENR, NOR, CIP and tetracycline hydrochloride(TC) in lake water with satisfied recovery from 99.75% to 102.30%. Finally, the photoinduced electron transfer and the competitive absorption of ultraviolet light are the main mechanisms for sensitive detection toward quinolone antibiotics and tetracyclines antibiotics.

关 键 词：Metal-organic framework Fluorescent detection SENSOR Quinolone antibiotics Tetracyclines antibiotics 

分 类 号：X830[环境科学与工程—环境工程] O657.3[理学—分析化学]