Optically tunable fluorescent carbon nanoparticles and their application in fluorometric sensing of copper ions

查看全文 作　　者：Minhuan [1,2]Lan;Shaojing [1,2]Zhao;Shuilin [1]Wu;Xiaofang [3]Wei;Yanzhao [2]Fu;Juanjuan [4]Wu;Pengfei [3]Wang;Wenjun [1]Zhang

机构地区：[1]Center of Super-Diamond and Advanced Films(COSDAF)and Department of Materials Science and Engineering,City University of Hong Kong,HongKong SAR,China;[2]Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety,College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China;[3]Key Laboratory of Photochemical Conversion and Optoelectronic Materials,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China;[4]Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion,School of Chemistry and Chemical Engineering,Tianjin University oj Technology,Tianjin 300384,China

出　　处：《Nano Research》索引2019年第12卷第10期,共8页

基　　金：This work was supported by the General Research Fund of Hong Kong(Nos.CityU 11306717,and CityU 11338516);the National Natural Science Foundation of China(Nos.61720106014 and 61805287);National Science Foundation of Hunan Province,China(Nos.2018JJ3632 and 2019JJ50824);Basic Research Foundation of Shenzhen Science and Technology Innovation(Nos.JCYJ20180307151245919);the Fundamental Research Funds for the Central Universities(No.202045002). 摘　　要：A series of carb on nano particles(CNPs)with emissi on wavele ngth ranging from 483 to 525 nm were prepared by hydrothermal treatme nt of poly-3-thiopheneacetic acid(PTA)and NaOH.The emission wavelength and surface oxidation degree of CNPs were shown to be controllable by simply adjusti ng NaOH concentration.These CNPs prese nted obvious fluoresce nee spectral response toward copper ions(Cu^2+)through static quenching caused synergistically by electron transfer and inner filter effect.The O-and S-containing groups on the surface of CNPs were dem on strated to be resp on sible for their outsta nding sensing performa nee.Based on that,a CN Ps-based ratiometric fluoresce nt probe for Cu^2+with a high fluoresce nee quenching rate constant of 1.4×10^5 L/mol and a short resp onse time(10 s)was developed.Their practical applications in detecting Cu^2+in pond water and living cells were also dem on strated. 关键词：carbon nano PARTICLES tun able fluorometric COPPER IONS

相关文献

参考文献（46）
引证文献（5）
耦合文献（19）

参考文献(46)

引证文献(5)

耦合文献(19)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Optically tunable fluorescent carbon nanoparticles and their application in fluorometric sensing of copper ions

参考文献(46)

引证文献(5)

耦合文献(19)

用户提示