Rare earth complexes chemiluminescence catalyzed by gold nanoparticles for fast sensing of Tb3+ and Eu3+ |
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| Institution: | 1. School of Resources Environment and Materials, Guangxi University, Nanning 530004, China;2. School of Electronics Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China;3. State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China;4. Guangxi Higher Education Key Laboratory of High Performance Structural Materials and Heat Treatment & Surface Processing, Guangxi University, Nanning 53004, China;5. South Manganese Group Limited, Nanning 530029, China;1. CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, China;4. State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China;5. Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China;1. The MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China;2. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China;3. Nuclear Research Institute for Future Technology and Policy, Seoul National University, Seoul 08826, Republic of Korea;1. School of Environmental Science and Engineering/Tianjin Engineering Research Center of Bio Gas/Oil Technology, Tianjin University, Tianjin 300072, China;2. School of Environmental Science & Engineering, Southern University of Science and Technology, Shenzhen 518055, China;3. Georgia Tech Shenzhen Institute, Tianjin University, Shenzhen 518071, China;4. School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China;5. School of Science, Tibet University, Lhasa 850012, China;1. College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;2. Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China;3. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Developing multiplex sensing technique is of great significance for fast sample analysis. However, the broad emissions of most chemiluminescence (CL) luminophores make the multiplex CL analysis be difficult. In this work, a simple and sensitive CL analytical method has been developed for the simultaneous determination of Tb3+ and Eu3+ thanking to their narrow band emission. The technique was based on a mixed CL system of periodate (IO4−)-hydrogen peroxide (H2O2)-rare earth complexes, in which the reactive oxygen species (ROSs) especially singlet oxygen (1O2) can transfer its energy to the complex of Tb3+/Eu3+-ethylenediaminetetraacetic acid disodium salt (EDTA) and then produce the characteristic emissions of Tb3+ and Eu3+ without cross-interference. The further experiment found that the CL emissions of Tb3+ and Eu3+ could be catalyzed by the gold nanoparticles (AuNPs) via enhancing the yield of 1O2. The CL intensities of Tb3+ (at 490 nm) and Eu3+ (at 620 nm) increased linearly with concentration of Tb3+ and Eu3+. After the optimization of the CL sensing conditions, the limits of detection (LOD) were 5.0 × 10−9 mol/L and 8.0 × 10−7 mol/L for Tb3+ and Eu3+, respectively. Finally, the method has been applied for measuring the contents of Tb3+ and Eu3+ in leaching solution of mine sample and Tb3+/Eu3+-contained nanomaterials with satisfactory results. The present system provides a new CL technique for multiplex sensing with simplicity and high sensitivity. |
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