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Liu Y, Xia G, Xu R, Chen X, Yao C. Eu 3+-based InP/ZnS quantum dot fluorescence platform for multi-color and sensitive visualization of tetracycline. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 313:124167. [PMID: 38498963 DOI: 10.1016/j.saa.2024.124167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 03/02/2024] [Accepted: 03/14/2024] [Indexed: 03/20/2024]
Abstract
A turn-on type ratiometric fluorescence sensing system of blue quantum dot Eu-MPA-InP/ZnS was established for multi-color visualization determination of tetracycline (TC). Mercaptopropionic acid (MPA)-capped InP/ZnS quantum dots (MPA-InP/ZnS QDs) both modify the hydrophilicity of InP/ZnS QDs and serve as a scaffold for coordinating of Eu3+ ions. The blue fluorescence of Eu-MPA-InP/ZnS at 478 nm is reduced by the TC through the inner filter effect (IFE) under a single excitation wavelength of 365 nm. Rich colour gradients and a highly discriminative colour change were features of this multicolour response to TC, which allowed visual quantification of TC in a dose-dependent manner. Furthermore, by cross-linking Eu-MPA-InP/ZnS with agarose (Aga.), a mouldable Eu-MPA-InP/ZnS@Aga 96-well gel sensing device was designed to serve as a handheld sensor for on-site detection of TC. This probe expands the use of InP QDs in analytical sensing and has been effectively applied to the visual detection of tetracycline in milk and the environment.
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Affiliation(s)
- Ying Liu
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, PR China.
| | - Guopeng Xia
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, PR China.
| | - Rentao Xu
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, PR China.
| | - Xiong Chen
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, PR China.
| | - Cheng Yao
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, PR China.
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Li P, Li J, Chen W, Guan X, Tang B, Bin L, Huang S. Removal and recovery of phosphate by modified oyster shell and its fertilizer application. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168432. [PMID: 37951256 DOI: 10.1016/j.scitotenv.2023.168432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 11/06/2023] [Accepted: 11/06/2023] [Indexed: 11/13/2023]
Abstract
The resource utilization of oyster shell (OS) is essential for environmental and human health because its random disposal can induce the environmental pollution and disease spread. Herein, MnFe2O4 loaded-oyster shell (OMFs) was prepared by co-precipitation method for phosphate removal and recovery. The salt etching and MnFe2O4 (MF) loading improved the adsorption performance of OS, and the maximum adsorption capacity of OMF0.02 reached 87.39 mg P/g. Phosphate adsorption was dominated by chemisorption and its rate was limited by membrane diffusion and intra-particle diffusion. Phosphate adsorption by OMF0.02 was involved with electrostatic attraction, surface precipitation and ligand exchange. 98.95 % phosphate on saturated adsorbent could be desorbed by 0.1 mol/L malic acid and 92.31 % adsorbed phosphate was released by 0.5 mol/L NaHCO3. Furthermore, phosphate adsorbed on OMF0.02 was plant-available basing on the results of water spinach growth trial. All the results implied the bright prospect of OMF0.02 in phosphate removal and recovery from wastewater.
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Affiliation(s)
- Ping Li
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Jianxu Li
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Weirui Chen
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
| | - Xiujuan Guan
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Bing Tang
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Liying Bin
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Shaosong Huang
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
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Kanmaz N, Buğdaycı M, Demirçivi P. Solvent-free mechanochemical synthesis of TiO2-ethyl cellulose biocomposite for adsorption of tetracycline and organic dyes. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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Wang S, Hao M, Xiao D, Zhang T, Li H, Chen Z. Synthesis of porous carbon nanomaterials and their application in tetracycline removal from aqueous solutions. Chin J Chem Eng 2023. [DOI: 10.1016/j.cjche.2022.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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