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Xu R, Su Y, Ji H, Jiang M, Zhang R, Ding L, Chen Y, Song D. Enhanced detection of 4-nitrophenol in drinking water: ECL sensor utilizing velvet-like graphitic carbon nitride and molecular imprinting. Food Chem 2024; 460:140599. [PMID: 39067383 DOI: 10.1016/j.foodchem.2024.140599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/25/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024]
Abstract
In this work, a molecularly imprinted electrochemiluminescence (ECL) sensor was developed for selective detection of 4-nitrophenol (4-NP) in drinking water for the first time. By synthesizing velvet-like graphitic carbon nitride (V-g-C3N4) via one-step thermal polycondensation and integrating it with a molecularly imprinted polymer (MIP), the ECL sensor was fabricated. The MIP-modified V-g-C3N4 composites (MIP/V-g-C3N4) were synthesized using a sol-gel method with 4-NP as the template molecule. Under optimal conditions, the ECL sensor exhibited a wide detection range (5 × 10-10-1 × 10-5 mol/L) and a low detection limit (1.8 × 10-10 mol/L). In testing with actual drinking water samples, it displayed high accuracy (recoveries for intraday and inter-day: 93.50-106.2% and 97.00-107.3%, separately) and precision (RSDs for intraday and inter-day: 1.54-4.59% and 1.53-4.28%, respectively). The developed MIP-based ECL sensor demonstrated excellent selectivity, stability, and reproducibility, offering a promising and reliable approach for highly sensitive and selective determination of 4-NP in drinking water.
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Affiliation(s)
- Rui Xu
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Yu Su
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Hongfei Ji
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Man Jiang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Ruizhong Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Lan Ding
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Yanhua Chen
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China; Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Daqian Song
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China; Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, 2699 Qianjin Street, Changchun 130012, China
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Ren J, Opoku H, Tang S, Edman L, Wang J. Carbon Dots: A Review with Focus on Sustainability. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2405472. [PMID: 39023174 DOI: 10.1002/advs.202405472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 07/03/2024] [Indexed: 07/20/2024]
Abstract
Carbon dots (CDs) are an emerging class of nanomaterials with attractive optical properties, which promise to enable a variety of applications. An important and timely question is whether CDs can become a functional and sustainable alternative to incumbent optical nanomaterials, notably inorganic quantum dots. Herein, the current CD literature is comprehensively reviewed as regards to their synthesis and function, with a focus on sustainability aspects. The study quantifies why it is attractive that CDs can be synthesized with biomass as the sole starting material and be free from toxic and precious metals and critical raw materials. It further describes and analyzes employed pretreatment, chemical-conversion, purification, and processing procedures, and highlights current issues with the usage of solvents, the energy and material efficiency, and the safety and waste management. It is specially shown that many reported synthesis and processing methods are concerningly wasteful with the utilization of non-sustainable solvents and energy. It is finally recommended that future studies should explicitly consider and discuss the environmental influence of the selected starting material, solvents, and generated byproducts, and that quantitative information on the required amounts of solvents, consumables, and energy should be provided to enable an evaluation of the presented methods in an upscaled sustainability context.
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Affiliation(s)
- Junkai Ren
- The Organic Photonics and Electronics Group, Department of Physics, Umeå University, Umeå, SE-90187, Sweden
| | - Henry Opoku
- The Organic Photonics and Electronics Group, Department of Physics, Umeå University, Umeå, SE-90187, Sweden
| | - Shi Tang
- The Organic Photonics and Electronics Group, Department of Physics, Umeå University, Umeå, SE-90187, Sweden
- LunaLEC AB, Umeå University, Umeå, SE-90187, Sweden
| | - Ludvig Edman
- The Organic Photonics and Electronics Group, Department of Physics, Umeå University, Umeå, SE-90187, Sweden
- LunaLEC AB, Umeå University, Umeå, SE-90187, Sweden
- Wallenberg Initiative Materials Science for Sustainability, Department of Physics, Umeå University, Umeå, SE-90187, Sweden
| | - Jia Wang
- The Organic Photonics and Electronics Group, Department of Physics, Umeå University, Umeå, SE-90187, Sweden
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Tadayoni NS, Dinari M, Roy A, Karimi Abdolmaleki M. Recent Advances in Porous Bio-Polymer Composites for the Remediation of Organic Pollutants. Polymers (Basel) 2024; 16:1543. [PMID: 38891489 PMCID: PMC11174778 DOI: 10.3390/polym16111543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 05/07/2024] [Accepted: 05/09/2024] [Indexed: 06/21/2024] Open
Abstract
The increasing awareness of the importance of a clean and sustainable environment, coupled with the rapid growth of both population and technology, has instilled in people a strong inclination to address the issue of wastewater treatment. This global concern has prompted individuals to prioritize the proper management and purification of wastewater. Organic pollutants are very persistent and due to their destructive effects, it is necessary to remove them from wastewater. In the last decade, porous organic polymers (POPs) have garnered interest among researchers due to their effectiveness in removing various types of pollutants. Porous biopolymers seem to be suitable candidates among POPs. Sustainable consumption and environmental protection, as well as reducing the consumption of toxic chemicals, are the advantages of using biopolymers in the preparation of effective composites to remove pollutants. Composites containing porous biopolymers, like other POPs, can remove various pollutants through absorption, membrane filtration, or oxidative and photocatalytic effects. Although composites based on porous biopolymers shown relatively good performance in removing pollutants, their insufficient strength limits their performance. On the other hand, in comparison with other POPs, including covalent organic frameworks, they have weaker performance. Therefore, porous organic biopolymers are generally used in composites with other compounds. Therefore, it seems necessary to research the performance of these composites and investigate the reasons for using composite components. This review exhaustively investigates the recent progress in the use of composites containing porous biopolymers in the removal of organic pollutants in the form of adsorbents, membranes, catalysts, etc. Information regarding the mechanism, composite functionality, and the reasons for using each component in the construction of composites are discussed. The following provides a vision of future opportunities for the preparation of porous composites from biopolymers.
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Affiliation(s)
- Nayereh S. Tadayoni
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Mohammad Dinari
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Aleena Roy
- Department of Physical and Environmental Sciences, Texas A&M University-Corpus Christi, Corpus Christi, TX 78412, USA
| | - Mahmood Karimi Abdolmaleki
- Department of Physical and Environmental Sciences, Texas A&M University-Corpus Christi, Corpus Christi, TX 78412, USA
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Wang Y, Wu R, Zhang Y, Cheng S, Wang B, Zhang Y, Zhang Y. One-step synthesis of N, S-doped carbon dots with green emission and their application in 4-NP detection, pH sensing, and cell imaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123709. [PMID: 38043293 DOI: 10.1016/j.saa.2023.123709] [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: 07/17/2023] [Revised: 11/21/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023]
Abstract
Using p-aminophenol and dithioacetamide as precursors, green luminescent nitrogen (N) and sulfur (S) co-doped carbon dots (N, S-CDs) are prepared by hydrothermal method with the quantum yield (QY) of 7.1 %. Superior properties of the N, S-CDs including high photostability, outstanding biocompatibility, and desirable biological penetration were found, which could realize the monitor of 4-nitrophenol (4-NP) and pH. The N, S-CDs can be designed as a fluorescent probe for sensitive detection of 4-NP in water samples with linear ranges of 0-85 µM and a detection limit of 0.037 µM. Moreover, the fluorescence intensity of N, S-CDs is sensitive to pH and shows a linear relationship with pH values ranging from 3.50 to 7.25 and 7.25-12.00, accompanied with a significant color variation of the N, S-CDs solution from colorless to brown. Finally, the proposed N, S-CDs have also been applied to monitor the 4-NP in oocysts due to its low cytotoxicity, providing a great capacity for various targets molecules detection.
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Affiliation(s)
- YingTe Wang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
| | - RongRong Wu
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - YingJie Zhang
- YangQuan NO. 7 Middle School of ShanXi, YangQuan 045000, China
| | - SiRong Cheng
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - BoHan Wang
- Department of Electrical and Computer Engineering, McGill University, Montreal, Quebec H3A0E9, Canada
| | - Yong Zhang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - YuanYuan Zhang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
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