文献类型：期刊文献

英文题名：Assembly and copper ions detection of highly sensible and stable carbon dots/hydroxyapatite fluorescence probe

作者：Jing, Ri-Zheng[1,3];Yin, Jia-Miao[1,3];Zeng, Xian-Rong[1,3];Zhao, Si-Rui[1,3];Xue, Ya-Nan[1];Liu, Jin-Ku[1];Zhang, Xian-Mei[2];Yang, Xiao-Hong[3]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Sci, Shanghai 200237, Peoples R China;[3]Chizhou Univ, Dept Chem, Chizhou, Peoples R China

年份：2019

卷号：34

期号：11

起止页码：674

外文期刊名：MATERIALS TECHNOLOGY

收录：;EI(收录号：20192006921018);WOS:【SCI-EXPANDED(收录号:WOS:000471523800001)】；

基金：This work was supported by the Material Corrosion and Protection Key Laboratory of Sichuan Province [2017CL15]; National Natural Science Foundation of China [21878090]; National Natural Science Foundation of China [11675053]; Major Project of Anhui Provincial Education Department [KJ2017ZD48].

语种：英文

外文关键词：Carbon Dots; Hydroxyapatite Probe (CDs; HAP probe); detection; Cu2+ ions; fluorescence quenching

摘要：Although fluorescence probes have certain applications in copper ion detection, sensitivity and accuracy are easily affected because of their instability. To improve this situation, a more stable carbon dots (CDs)/hydroxyapatite (HAP) nanocomposite fluorescence probe is designed. The improvement in structure and properties of the CDs/HAP fluorescence probe compared to the CDs shows that the stability of the fluorescence intensity is enhanced. Compared with pure CDs probe, the novel CDs/HAP fluorescence probe exhibits higher stability and sensitivity due to the in-situ composite of HAP. The fluorescence intensity of the probe has shown the best linear response to the concentration of Cu2+ in the range of 10(-5) to 10(-4)mol center dot L-1 in aqueous solution. These results indicate that the method based on the fluorescence quenching mechanism has enormous potential for the development of highly efficient fluorescence probe towards the detection of heavy metal ions.