1
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Kapurwan S, Sahu PK, Raizada M, Kharel R, Konar S. [α-AsW 9O 33] 9- bridged hexagonal clusters of Ln(III) showing field induced SMM behavior: experimental and theoretical insight. Dalton Trans 2023. [PMID: 37357913 DOI: 10.1039/d3dt00406f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Polyoxometalates (POM), as inorganic polydentate oxygen donors, provide binding opportunities for oxophilic lanthanide metal centers to construct novel Ln-substituted POM materials with exciting structures and attractive properties. Herein, we have reported four arsenotungstate [α-AsW9O33]9- based lanthanide-containing polyoxometalates [CsxK36-x{Ln6(H2O)12(α-AsW9O33)6}]·yH2O (Ln = Er (1), Gd (2), Ho (3), and Tb (4)), which are synthesized in an alkaline medium. Complexes 1-3 are the dimeric structures of [Ln3(H2O)6(α-AsW9O33)3]18- polyanions, whereas complex 4 is a hexamer of the polyanion [Tb (H2O)2(α-AsW9O33)]6- as a building unit. In all the complexes, [α-AsW9O33]9- units are staggered up and down and give rise to the chair conformation, where one [α-AsW9O33]9- unit bridges two Ln(III) centers through four μ2-oxygen and two terminal oxygen atoms, resulting in the hexagonal arrangement of lanthanides. The dynamic magnetic measurement indicates that only complex 1 exhibits slow relaxation of magnetization with an applied dc field (1500 Oe). To gain insight into the slow relaxation of magnetization in complex 1, the ligand-field parameters and the splitting of the ground-state multiplet of the Er(III) ions have been estimated. The ab initio calculation results confirm that the ground state wave function of these molecules (1, 3, and 4) is mainly composed of a mixture of mJ states, and the non-axial crystal field (CF) terms are more predominant than the axial CF term. The solid-state fluorescence spectra of 1-4 reveal that the photoexcitation O → M ligand-to-metal charge-transfer (LMCT) of arsenotungstate fragments is effectively quenched due to the spatial coordination environment around the Ln(III) ion.
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Affiliation(s)
- Sandhya Kapurwan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal By-pass Road, Bhauri, Bhopal-462066, Madhya Pradesh, India.
| | - Pradip Kumar Sahu
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal By-pass Road, Bhauri, Bhopal-462066, Madhya Pradesh, India.
| | - Mukul Raizada
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal By-pass Road, Bhauri, Bhopal-462066, Madhya Pradesh, India.
| | - Ranjan Kharel
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal By-pass Road, Bhauri, Bhopal-462066, Madhya Pradesh, India.
| | - Sanjit Konar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal By-pass Road, Bhauri, Bhopal-462066, Madhya Pradesh, India.
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2
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Miao WN, Liu B, Li H, Zheng SJ, Jiao H, Xu L. Fluorescent Eu 3+/Tb 3+ Metal-Organic Frameworks for Ratiometric Temperature Sensing Regulated by Ligand Energy. Inorg Chem 2022; 61:14322-14332. [PMID: 36026489 DOI: 10.1021/acs.inorgchem.2c02025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This work presents three series of Eu/Tb metal-organic frameworks (MOFs) containing benzophenone-4,4'-dicarboxylic acid (H2BPNDC), 4,4'-dicarboxydiphenyl ether (H2OBA), and terephthalic acid (H2BDC) as the ligands. Eu/Tb MOFs have the same structural features in that their 3D frameworks are simplified as 2,3,10-connected {42.6}2{46.618.819.102}{4}2 topological networks. The solid-state fluorescence spectra of three Eu/Tb MOF series are attributed to the combined emissions of 5D0 → 7FJ (J = 1-4) transitions in Eu3+ and 5D4 → 7FJ (J = 6-5) transitions in Tb3+. The nEu:nTb of Eu/Tb MOFs is optimized as 1:69 based on the relationships between ITb(545)/IEu(614) and nEu:nTb; that is, Eu0.0143Tb0.9857-L (L = BPNDC2-, OBA2-, and BDC2-) were selected to carry out the following temperature (T)-sensing tests. The fluorescence mechanism of Eu0.0143Tb0.9857-L can be explained by a ligand-to-metal charge transfer combined with an intermetallic Tb3+ → Eu3+ energy transfer. The T-dependent fluorescence indicates linear relationships with sensitivities of 1.85% K-1 for Eu0.0143Tb0.9857-BPNDC, 6.49% K-1 for Eu0.0143Tb0.9857-OBA, and 0.28% K-1 for Eu0.0143Tb0.9857-BDC. The influence of T on the lowest excited triplet energy levels (T1 values) of the ligands reveals that the ligand energy regulation impacts their fluorescence properties, including the sensitivity, fluorescence quenching rate, quantum yield, and fluorescence lifetime. This shows that Eu0.0143Tb0.9857-BPNDC is sufficiently sensitive to T, making it applicable in noncontact T measurements.
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Affiliation(s)
- Wei-Ni Miao
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, Shaanxi Province, P. R. China
| | - Bing Liu
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an 710021, Shaanxi Province, P. R. China
| | - Hong Li
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, Shaanxi Province, P. R. China
| | - Shu-Jin Zheng
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, Shaanxi Province, P. R. China
| | | | - Ling Xu
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, Shaanxi Province, P. R. China
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3
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Chen XB, Qi CX, Li H, Ding JY, Yan S, Lei H, Xu L, Liu B. Highly sensitive and selective Fe3+ detection by a water-stable Tb3+-doped nickel coordination polymer-based turn-off fluorescence sensor. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2019.121030] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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4
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Lei H, Qi CX, Chen XB, Zhang T, Xu L, Liu B. Ratiometric fluorescence determination of the anthrax biomarker 2,6-dipicolinic acid using a Eu3+/Tb3+-doped nickel coordination polymer. NEW J CHEM 2019. [DOI: 10.1039/c9nj04501e] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Tb3+0.6/Eu3+0.4@Ni-BTC is a quantitative ratiometric fluorescence sensor for DPA detection with high sensitivity, anti-interference, rapid response and durability.
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Affiliation(s)
- Hang Lei
- College of Chemistry and Chemical Engineering
- Shaanxi Key Laboratory of Chemical Additives for Industry
- Shaanxi University of Science and Technology
- Xi’an 710021
- P. R. China
| | - Cui-Xing Qi
- College of Chemistry and Chemical Engineering
- Shaanxi Key Laboratory of Chemical Additives for Industry
- Shaanxi University of Science and Technology
- Xi’an 710021
- P. R. China
| | - Xuan-Bo Chen
- College of Chemistry and Chemical Engineering
- Shaanxi Key Laboratory of Chemical Additives for Industry
- Shaanxi University of Science and Technology
- Xi’an 710021
- P. R. China
| | - Tian Zhang
- College of Chemistry and Chemical Engineering
- Shaanxi Key Laboratory of Chemical Additives for Industry
- Shaanxi University of Science and Technology
- Xi’an 710021
- P. R. China
| | - Ling Xu
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- P. R. China
| | - Bing Liu
- College of Chemistry and Chemical Engineering
- Shaanxi Key Laboratory of Chemical Additives for Industry
- Shaanxi University of Science and Technology
- Xi’an 710021
- P. R. China
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5
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Xia C, Zhang S, Tan Y, Sun D, Sun P, Cheng X, Xin X. Self-Assembly of Europium-Containing Polyoxometalates/Tetra- n-alkyl Ammonium with Enhanced Emission for Cu 2+ Detection. ACS OMEGA 2018; 3:14953-14961. [PMID: 31458161 PMCID: PMC6643673 DOI: 10.1021/acsomega.8b01636] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 10/26/2018] [Indexed: 05/02/2023]
Abstract
Lanthanide-containing polyoxometalates (POMs) can be used to detect various materials, but their luminescence in water has suffered enormous limitations due to the strong fluorescence quenching. Herein, to resolve this problem, three-dimensional nanoparticles built by mixed Weakley-type europium-containing POMs (Na9[EuW10O36]·32H2O, abbreviated to EuW10) and tetra-n-alkyl ammonium (TA) with enhanced fluorescent properties have been designed in aqueous solution using an ionic self-assembly (ISA) technique, which is mainly driven by the electrostatic interaction between EuW10 and TA. The morphology and fluorescent properties of the system as well as some influencing factors (alkyl chain length, amino group, and inorganic salt concentration) were systematically investigated. The results indicated that the fluorescent intensity of EuW10/tetramethylammonium bromide (TMAB) composite increased about 14 times, whereas the extent of increase of fluorescence for EuW10/tetraethylammonium bromide (TEAB) and EuW10/tetrabutylammonium bromide (TMAB) composites gradually decrease due to the bulkier steric hindrance of the longer alkyl chain. Besides, the luminescence of EuW10/TMAB nanoparticles is pH responsive, and the reversibility of their structures and luminescence can be realized upon the addition of NaOH/HCl. Moreover, the EuW10/TMAB system also shows great fluorescence-sensing behavior, which could detect Cu2+ with a detection limit of 0.15 μM. Our work provides a facile construction strategy for a functional fluorescent complex via POMs-based supramolecular self-assembly in aqueous solution, which will be further used in biomarkers and sensors.
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Affiliation(s)
- Congxin Xia
- National
Engineering Technology Research Center for Colloidal Materials and Key Lab for Colloid
and Interface Chemistry of Education Ministry, School of Chemistry
and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Shanshan Zhang
- National
Engineering Technology Research Center for Colloidal Materials and Key Lab for Colloid
and Interface Chemistry of Education Ministry, School of Chemistry
and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Yebang Tan
- National
Engineering Technology Research Center for Colloidal Materials and Key Lab for Colloid
and Interface Chemistry of Education Ministry, School of Chemistry
and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Di Sun
- National
Engineering Technology Research Center for Colloidal Materials and Key Lab for Colloid
and Interface Chemistry of Education Ministry, School of Chemistry
and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Panpan Sun
- National
Engineering Technology Research Center for Colloidal Materials and Key Lab for Colloid
and Interface Chemistry of Education Ministry, School of Chemistry
and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Xiaohui Cheng
- National
Engineering Technology Research Center for Colloidal Materials and Key Lab for Colloid
and Interface Chemistry of Education Ministry, School of Chemistry
and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Xia Xin
- National
Engineering Technology Research Center for Colloidal Materials and Key Lab for Colloid
and Interface Chemistry of Education Ministry, School of Chemistry
and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
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6
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Xia C, Zhang S, Sun D, Jiang B, Wang W, Xin X. Coassembly of Mixed Weakley-Type Polyoxometalates to Novel Nanoflowers with Tunable Fluorescence for the Detection of Toluene. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6367-6375. [PMID: 29758987 DOI: 10.1021/acs.langmuir.8b00283] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
In this work, three-dimensional nanoflowers with tunable fluorescent properties constructed with mixed Weakley-type polyoxometalates (POMs, Na9[LnW10O36]·32H2O, Ln = Eu, Tb, abbreviated to LnW10) and tetraethylenepentamine (TEPA) have been successfully prepared through a facile ionic self-assembly (ISA) method. The shape and petal size of the nanoflower as well as its fluorescent behaviors can be tuned through varying the ratio of EuW10/TbW10. The varied-temperature emission behaviors at 80-260 K show that the fluorescent intensity of both Tb3+ and Eu3+ decreased with the increase in temperature, which makes them potential luminescent ratiometric thermometers. Moreover, after being mixed with polydimethylsiloxane (PDMS), the as-formed hybrid films showed stable fluorescence along with good transparency. The robustness of the hybrid films was also demonstrated by corrosion resistance upon treatment with strong acid and alkali and thus can be used as a sensor to detect toluene circularly. Our results provide a new avenue to the facile construction of fluorescent composites and demonstrate that the POM complexes can be further used in supramolecular chemistry and nanomaterials.
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7
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Shen ML, Xu L, Liu B, Jiao H, Kwon YU. A thermosensitive fluorescent Eu-based metal–organic framework and its polyether sulfone composite film as a thermal sensor. Dalton Trans 2018; 47:8330-8336. [DOI: 10.1039/c8dt01690a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Thermosensitive fluorescent [Eu(NDC)(H2O)Cl] (1) (H2NDC = 2,6-Naphthalene dicarboxylic acid) was fabricated with polyether sulfone (PES) into composite films. 40% 1@PES film showed highly sensitive and repeatable thermal sensor properties in an alarm device.
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Affiliation(s)
- Mei-Lin Shen
- Key Laboratory of Macromolecular Science of Shaanxi Province
- Shaanxi Key Laboratory for Advanced Energy Devices
- Shaanxi Engineering Laboratory for Advanced Energy Technology
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
| | - Ling Xu
- Key Laboratory of Macromolecular Science of Shaanxi Province
- Shaanxi Key Laboratory for Advanced Energy Devices
- Shaanxi Engineering Laboratory for Advanced Energy Technology
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
| | - Bing Liu
- College of Chemistry and Chemical Engineering
- Shaanxi University of Sciences and Technology
- Xi'an 710021
- P. R. China
| | - Huan Jiao
- Key Laboratory of Macromolecular Science of Shaanxi Province
- Shaanxi Key Laboratory for Advanced Energy Devices
- Shaanxi Engineering Laboratory for Advanced Energy Technology
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
| | - Young-Uk Kwon
- Department of Chemistry
- Sungkyunkwan University
- Suwon 16419
- Korea
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8
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Xia C, Wang Z, Sun D, Jiang B, Xin X. Hierarchical Nanostructures Self-Assembled by Polyoxometalate and Alkylamine for Photocatalytic Degradation of Dye. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:13242-13251. [PMID: 29083188 DOI: 10.1021/acs.langmuir.7b03495] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
A novel simple strategy for alkylamine-directed self-assembly of Weakley-type polyoxometalate (POM, Na9[EuW10O36]·32H2O, abbreviated to EuW10) to form three-dimensional nanoflowers has been successfully developed through the ionic self-assembly (ISA) method. For comparison, different molecular weights of alkylamines including diethylenetriamine, triethylenetetramine, and tetraethylenepentamine (TEPA) were selected to construct hierarchical nanostructures. Our results revealed that the morphologies and sizes of the nanostructures could be simply controlled by varying the molecular weights and concentrations of alkylamines. The fluorescent color of EuW10/TEPA nanoflowers changed compared with that of EuW10 owing to the varied symmetry degree of europium coordination in EuW10/TEPA nanoflowers. It is demonstrated that this effective self-assembly occurs mainly though the hydrogen bond and electrostatic interaction between EuW10 and TEPA. What's more, the EuW10/TEPA nanoflowers after calcining showed excellent decomposition efficiency toward methylene blue dyes. Our results further confirmed that ISA method between small molecules and POM can provide a unique "bottom-up" strategy to construct novel structures with functional properties.
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Affiliation(s)
- Congxin Xia
- Key Lab for Colloid and Interface Chemistry of Education Ministry, School of Chemistry and Chemical Engineering, and ‡National Engineering Technology Research Center for Colloidal Materials, Shandong University , Jinan 250100, P. R. China
| | - Zhi Wang
- Key Lab for Colloid and Interface Chemistry of Education Ministry, School of Chemistry and Chemical Engineering, and ‡National Engineering Technology Research Center for Colloidal Materials, Shandong University , Jinan 250100, P. R. China
| | - Di Sun
- Key Lab for Colloid and Interface Chemistry of Education Ministry, School of Chemistry and Chemical Engineering, and ‡National Engineering Technology Research Center for Colloidal Materials, Shandong University , Jinan 250100, P. R. China
| | - Baolai Jiang
- Key Lab for Colloid and Interface Chemistry of Education Ministry, School of Chemistry and Chemical Engineering, and ‡National Engineering Technology Research Center for Colloidal Materials, Shandong University , Jinan 250100, P. R. China
| | - Xia Xin
- Key Lab for Colloid and Interface Chemistry of Education Ministry, School of Chemistry and Chemical Engineering, and ‡National Engineering Technology Research Center for Colloidal Materials, Shandong University , Jinan 250100, P. R. China
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9
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Jia GD, Yan B. Lanthanide functionalized hybrid materials of polyoxometallate based metal–organic frameworks for multi-color luminescence. NEW J CHEM 2017. [DOI: 10.1039/c7nj02824e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lanthanide functionalized hybrids of polyoxometallate based MOF Ln3+⊂COK-15 are prepared and display multi-color light, together with a white luminescence (x = 0.3845, y = 0.303) by tuning an appropriate amount of Eu3+ and a suitable excitation wavelength.
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Affiliation(s)
- G. D. Jia
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | - B. Yan
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- China
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10
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Feng HJ, Xu L, Liu B, Jiao H. Europium metal–organic frameworks as recyclable and selective turn-off fluorescent sensors for aniline detection. Dalton Trans 2016; 45:17392-17400. [DOI: 10.1039/c6dt03358j] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Seven Eu(iii) compounds are ionothermally synthesized and well characterized, among which compounds 4 and 6 behave as highly selective turn-off fluorescent sensors for aniline detection with stable recycle repeatability.
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Affiliation(s)
- Hui-Jun Feng
- Key Laboratory of Macromolecular Science of Shaanxi Province
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- P. R. China
| | - Ling Xu
- Key Laboratory of Macromolecular Science of Shaanxi Province
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- P. R. China
| | - Bing Liu
- College of Chemistry and Chemical Engineering
- Shaanxi University of Sciences and Technology
- Xi'an 710021
- P. R. China
| | - Huan Jiao
- Key Laboratory of Macromolecular Science of Shaanxi Province
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- P. R. China
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11
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Xu XY, Yan B. An efficient and sensitive fluorescent pH sensor based on amino functional metal–organic frameworks in aqueous environment. Dalton Trans 2016; 45:7078-84. [DOI: 10.1039/c6dt00361c] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In this work, an amino group functionalized MOF (Al-MIL-101-NH2), which shows strong blue luminescence, is used as pH sensor. Due to the protonated amino group, the fluorescence intensity of Al-MIL-101-NH2almost increases with increasing pH and gives a good linear relationship (R2= 0.99688) with the pH value.
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Affiliation(s)
- Xiao-Yu Xu
- Shanghai Key Lab of Chemical Assessment and Sustainability
- Department of Chemistry
- Tongji University
- Shanghai 200092
- China
| | - Bing Yan
- Shanghai Key Lab of Chemical Assessment and Sustainability
- Department of Chemistry
- Tongji University
- Shanghai 200092
- China
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12
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Liu C, Yan B. Zeolite-type metal organic frameworks immobilized Eu3+ for cation sensing in aqueous environment. J Colloid Interface Sci 2015; 459:206-211. [DOI: 10.1016/j.jcis.2015.08.025] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 08/06/2015] [Accepted: 08/13/2015] [Indexed: 12/11/2022]
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13
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Liu C, Yan B. Highly effective chemosensor of a luminescent silica@lanthanide complex@MOF heterostructured composite for metal ion sensing. RSC Adv 2015. [DOI: 10.1039/c5ra19973e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
A highly selective and sensitive heterogeneous sensor to detect Cu2+ in aqueous solution has good fluorescence stability, low detection limit and broad linear range making it a potential chemosensor for Cu2+ in environmental systems.
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Affiliation(s)
- Chang Liu
- Department of Chemistry
- Tongji University
- Shanghai 200092
- China
| | - Bing Yan
- Department of Chemistry
- Tongji University
- Shanghai 200092
- China
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