典型文献
Decoding and quantitative detection of antibiotics by a luminescent mixed-lanthanide-organic framework
文献摘要：
Due to the potential risk of antibiotics to the environment,the development of inexpensive,simple,and reliable antibiotic detection methods is significant but also faces challenges.In this work,several lanthanide-organic frameworks(LOFs),constructed from lanthanide ions(Eu3+and/or Tb3+)and 1,3,5-benzene-tricarboxylic acid(BTC)were synthesized by solvothermal method.LOF-S3 with comparable emission peaks of 5D4 → 7F5(Tb3+,545 nm)and 5D0 → 7F2(Eu3+,618 nm)was selected as a luminescent sensor.In this system,the highly efficient energy transferred from the organic linker to lanthanide ions and from Tb3+to Eu3+occurs.LOF-S3 sensor was capable of decoding antibiotics by distinguishable emission intensity ratios.Therefore,a two-dimensional decoded map of antibiotics was established.The linear relationship between antibiotic concentration and emission intensity ratio indicated the quantitative determination of antibiotics was feasible.As a typical analyte,the response mechanism of nalidixic acid(NA)was investigated in detail.The competition of NA and BTC for UV light absorption,as well as the binding propensity of NA and Tb,affected the organic linkers-to-lanthanide ions and Tb-to-Eu energy transfer,resultingin the change of fluorescence intensity ratio.The self-calibrating mixed-LOF sensor overcame the uncontrollable errors of the traditional absolute emission intensity method and generated stable luminescent signals in multiple cycles.Furthermore,the integration of LOF-S3 with polymer fibers enabled the formation of a LOF-polymer fibrous composite with fluorescence detection capability,which is a promising portable sensor for practical applications.
文献关键词：
中图分类号：
作者姓名：
Yuping Wang;Jing Xia;Yanxin Gao
作者机构：
Department of Environmental Science and Engineering,Fuzhou University,Minhou 350108,China;State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process,School of Resources and Environmental Engineering,East China University of Science and Technology,Shanghai 200237,China
文献出处：
引用格式：
[1]Yuping Wang;Jing Xia;Yanxin Gao-.Decoding and quantitative detection of antibiotics by a luminescent mixed-lanthanide-organic framework)[J].环境科学与工程前沿,2022(12):53-63
A类：
LOFs,Eu3+and,Tb3+to,Eu3+occurs,nalidixic,resultingin
B类：
Decoding,quantitative,detection,antibiotics,by,luminescent,mixed,lanthanide,organic,Due,potential,risk,environment,development,inexpensive,simple,reliable,methods,significant,but,also,faces,challenges,In,this,several,frameworks,constructed,from,benzene,tricarboxylic,acid,BTC,were,synthesized,solvothermal,S3,comparable,emission,peaks,5D4,7F5,5D0,7F2,was,selected,sensor,system,highly,efficient,energy,transferred,capable,decoding,distinguishable,intensity,ratios,Therefore,two,dimensional,decoded,map,established,linear,relationship,between,concentration,indicated,determination,feasible,typical,analyte,response,mechanism,NA,investigated,detail,competition,UV,light,absorption,well,binding,propensity,affected,linkers,change,fluorescence,self,calibrating,overcame,uncontrollable,errors,traditional,absolute,generated,stable,signals,multiple,cycles,Furthermore,integration,polymer,fibers,enabled,formation,fibrous,composite,capability,which,promising,portable,practical,applications
AB值：
0.512031
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