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Ghahghaei M, Kuvarega AT, Hosseini SS. Tailoring the characteristics of polyacrylonitrile nanofiltration membranes for nickel removal from wastewater: The influence of binary solvents and pore-forming agents. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2024; 96:e11126. [PMID: 39286867 DOI: 10.1002/wer.11126] [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: 05/22/2024] [Revised: 08/10/2024] [Accepted: 08/28/2024] [Indexed: 09/19/2024]
Abstract
This work presents the results of an investigation on the physiochemical and structural characteristics of polyacrylonitrile (PAN) nanofiltration (NF) membranes prepared using a novel concept of binary solvents for nickel (Ni) removal from wastewater streams. The thermodynamic and kinetic aspects are emphasized aiming to optimize dope formulation, membrane performance, and durability. The fabricated membranes were characterized by scanning electron microscopy (SEM), porosimetry, tensile stress/strain, and flux and rejection. Results revealed that the use of an equal (1:1) mixture of n-methyl-2-pyrrolidone (NMP) and dimethylformamide (DMF) as dope solvents led to the formation of membranes with enhanced performance, offering pure water flux of 2.33 L·m-2·h-1·bar-1 and Ni rejection of 90.84%. Moreover, the incorporation of 0.5 wt.% PEG as a pore-forming agent to the dope solution further boosted pure water flux to 4.97 L·m-2·h-1·bar-1 with negligible impact on Ni rejection. Besides attractive performance, the adopted strategy offered membranes of exceptionally high flexibility with no sign of defect or failure especially during module fabrication and testing enabling smooth and hassle-free scale-up and extension to other applications. PRACTITIONER POINTS: Optimized solvent mixture: A 1:1 blend of n-methyl-2-pyrrolidone (NMP) and dimethylformamide (DMF) as solvents resulted in enhanced membrane performance. High flux and Ni rejection: The fabricated membranes exhibited a pure water flux of 2.33 L·m-2·h-1·bar-1 and a remarkable Ni rejection of 90.84%. PEG enhancement: Incorporating 0.5 wt.% PEG as a pore-forming agent further improved the membrane's pure water flux to 4.97 L·m-2·h-1·bar-1, without compromising Ni rejection. Exceptional flexibility: The adopted strategy yielded membranes with exceptional flexibility, making them suitable for scale-ups and other applications.
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Affiliation(s)
- Mehrdad Ghahghaei
- Membrane Science and Technology Research Group, Department of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Alex Tawanda Kuvarega
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa, Johannesburg, South Africa
| | - Seyed Saeid Hosseini
- Membrane Science and Technology Research Group, Department of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa, Johannesburg, South Africa
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Darwish MA, Abd-Elaziem W, Elsheikh A, Zayed AA. Advancements in nanomaterials for nanosensors: a comprehensive review. NANOSCALE ADVANCES 2024; 6:4015-4046. [PMID: 39114135 PMCID: PMC11304082 DOI: 10.1039/d4na00214h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 05/23/2024] [Indexed: 08/10/2024]
Abstract
Nanomaterials (NMs) exhibit unique properties that render them highly suitable for developing sensitive and selective nanosensors across various domains. This review aims to provide a comprehensive overview of nanomaterial-based nanosensors, highlighting their applications and the classification of frequently employed NMs to enhance sensitivity and selectivity. The review introduces various classifications of NMs commonly used in nanosensors, such as carbon-based NMs, metal-based NMs, and others, elucidating their exceptional properties, including high thermal and electrical conductivity, large surface area-to-volume ratio and good biocompatibility. A thorough examination of literature sources was conducted to gather information on NMs-based nanosensors' characteristics, properties, and fabrication methods and their application in diverse sectors such as healthcare, environmental monitoring, industrial processes, and security. Additionally, advanced applications incorporating machine learning techniques were analyzed to enhance the sensor's performance. This review advances the understanding and development of nanosensor technologies by providing insights into fabrication techniques, characterization methods, applications, and future outlook. Key challenges such as robustness, biocompatibility, and scalable manufacturing are also discussed, offering avenues for future research and development in this field.
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Affiliation(s)
- Moustafa A Darwish
- Physics Department, Faculty of Science, Tanta University Tanta 31527 Egypt
| | - Walaa Abd-Elaziem
- Department of Mechanical Design and Production Engineering, Faculty of Engineering, Zagazig University P.O. Box 44519 Egypt
- Department of Materials Science and Engineering, Northwestern University Evanston IL 60208 USA
| | - Ammar Elsheikh
- Production Engineering and Mechanical Design Department, Faculty of Engineering, Tanta University Tanta 31521 Egypt
- Department of Industrial and Mechanical Engineering, Lebanese American University P.O. Box 36 / S-12 Byblos Lebanon
| | - Abdelhameed A Zayed
- Production Engineering and Mechanical Design Department, Faculty of Engineering, Tanta University Tanta 31521 Egypt
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3
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Sheng Y, Qing D, Li N, Zhang P, Sun Y, Zhang R. Singlet oxygen production of Zn-Ag-In-S quantum dots for photodynamic treatment of cancer cells and bacteria. J Biomater Appl 2024; 39:129-138. [PMID: 38782577 DOI: 10.1177/08853282241255817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Zn-Ag-In-S (ZAIS) quantum dots (QDs) were synthesized with various Ag-to-In ratios and used as novel photosensitizers for photodynamic therapy (PDT) on cancer cell inhibition and bacterial sterilization, and their structural, optical, and photodynamic properties were investigated. The alloyed QDs displayed a photoluminescence quantum yield of 72% with a long fluorescence lifetime of 5.3 μs when the Ag-to-In ratio was 1:3, suggesting a good opportunity as a dual functional platform for fluorescence imaging and PDT. The ZAIS QDs were then coated with amphiphilic brush copolymer poly(maleic anhydride-alt-1-octadecene) (PMAO) before application. The 1O2 quantum yield of the ZAIS/PMAO was measured to be 8%, which was higher than previously reported CdSe QDs and comparable to some organic photosensitizers. Moreover, the ZAIS QDs showed excellent stability in aqueous and biological media, unlike organic photosensitizers that tend to degrade over time. The in vitro PDT against human melanoma cell line (A2058) and Staphylococcus aureus shows about 30% inhibition rate upon 20 min light irradiation. Cell staining images clearly demonstrated that co-treatment with ZAIS QDs and light irradiation effectively killed A2058 cells, demonstrating the potential of ZAIS QDs as novel and versatile photosensitizers for PDT in cancer and bacterial treatment, and provides useful information for future designing of QD-based photosensitizers.
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Affiliation(s)
- Yang Sheng
- National Experimental Demonstration Center for Materials Science and Engineering, Jiangus Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, China
| | - Danni Qing
- National Experimental Demonstration Center for Materials Science and Engineering, Jiangus Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, China
| | - Naijun Li
- National Experimental Demonstration Center for Materials Science and Engineering, Jiangus Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, China
| | - Peng Zhang
- National Experimental Demonstration Center for Materials Science and Engineering, Jiangus Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, China
| | - Yixin Sun
- National Experimental Demonstration Center for Materials Science and Engineering, Jiangus Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, China
| | - Rong Zhang
- National Experimental Demonstration Center for Materials Science and Engineering, Jiangus Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, China
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Freire MS, Silva HJB, Albuquerque GM, Monte JP, Lima MTA, Silva JJ, Pereira GAL, Pereira G. Advances on chalcogenide quantum dots-based sensors for environmental pollutants monitoring. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 931:172848. [PMID: 38703843 DOI: 10.1016/j.scitotenv.2024.172848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/23/2024] [Accepted: 04/26/2024] [Indexed: 05/06/2024]
Abstract
Water contamination represents a significant ecological impact with global consequences, contributing to water scarcity worldwide. The presence of several pollutants, including heavy metals, pharmaceuticals, pesticides, and pathogens, in water resources underscores a pressing global concern, prompting the European Union (EU) to establish a Water Watch List to monitor the level of these substances. Nowadays, the standard methods used to detect and quantify these contaminants are mainly liquid or gas chromatography coupled with mass spectrometry (LC/GC-MS). While these methodologies offer precision and accuracy, they require expensive equipment and experienced technicians, and cannot be used on the field. In this context, chalcogenide quantum dots (QDs)-based sensors have emerged as promising, user-friendly, practical, and portable tools for environmental monitoring. QDs are semiconductor nanocrystals that possess excellent properties, and have demonstrated versatility across various sensor types, such as fluorescent, electrochemical, plasmonic, and colorimetric ones. This review summarizes recent advances (2019-2023) in the use of chalcogenide QDs for environmental sensing, highlighting the development of sensors capable of detect efficiently heavy metals, anions, pharmaceuticals, pesticides, endocrine disrupting compounds, organic dyes, toxic gases, nitroaromatics, and pathogens.
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Affiliation(s)
- Mércia S Freire
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Brazil
| | - Hitalo J B Silva
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Brazil
| | | | - Joalen P Monte
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Brazil
| | - Max T A Lima
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Brazil
| | - Jailson J Silva
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Brazil
| | - Giovannia A L Pereira
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Brazil.
| | - Goreti Pereira
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Brazil; Departamento de Química & CESAM, Universidade de Aveiro, Aveiro, Portugal.
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Chen J, Meng H, Fang Z, Lukman I, Gao J, Liao J, Deng Q, Sun L, Gooneratne R. An "off-on" fluorescent nanosensor for the detection of cadmium ions based on APDC-etched CdTe/CdS/SiO 2 quantum dots. Heliyon 2024; 10:e26980. [PMID: 38463779 PMCID: PMC10920365 DOI: 10.1016/j.heliyon.2024.e26980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 03/12/2024] Open
Abstract
In this study, we have developed a novel fluorescent "OFF-ON" quantum dots (QDs) sensor based on CdTe/CdS/SiO2 cores. Ammonium pyrrolidine dithiocarbamate (APDC), ethylenediamine tetraacetic acid (EDTA), and 1,10-phenanthroline (Phen) served as potential chemical etchants. Among these three etchants, APDC exhibited the most pronounced quenching effect (94.06%). The APDC-etched CdTe/CdS/SiO2 QDs demonstrated excellent optical properties: the fluorescence of the APDC-etched CdTe/CdS/SiO2 QDs system (excitation wavelength: 365 nm and emission wavelength: 622 nm) was significantly and selectively restored upon the addition of cadmium ions (Cd2+) (89.22%), compared to 15 other metal ions. The linear response of the APDC-etched CdTe/CdS/SiO2 QDs was observed within the cadmium ion (Cd2+) concentration ranges of 0-20 μmol L-1 and 20-160 μmol L-1 under optimized conditions (APDC: 300 μmol L-1, pH: 7.0, reaction time: 10 min). The detection limit (LOD) of the APDC-etched CdTe/CdS/SiO2 QDs for Cd2+ was 0.3451 μmol L-1 in the range of 0-20 μmol L-1. The LOD achieved by the QDs in this study surpasses that of the majority of previously reported nanomaterials. The feasibility of using APDC-etched CdTe/CdS/SiO2 QDs for Cd2+ detection in seawater, freshwater, and milk samples was verified, with average recoveries of 95.27%-110.68%, 92%-106.47%, and 90.73%-111.60%, respectively, demonstrating satisfactory analytical precision (RSD ≤ 8.26).
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Affiliation(s)
- Jiaqian Chen
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Haimei Meng
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Zhijia Fang
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Iddrisu Lukman
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Jialong Gao
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Jianmeng Liao
- Zhanjiang Institute for Food and Drug Control, Zhanjiang, 524022, China
| | - Qi Deng
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Lijun Sun
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Ravi Gooneratne
- Department of Wine, Food and Molecular Biosciences, Lincoln University, Lincoln, Canterbury, 7647, New Zealand
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Jabbar A, Abbas A, Assad N, Naeem-Ul-Hassan M, Alhazmi HA, Najmi A, Zoghebi K, Al Bratty M, Hanbashi A, Amin HMA. A highly selective Hg 2+ colorimetric sensor and antimicrobial agent based on green synthesized silver nanoparticles using Equisetum diffusum extract. RSC Adv 2023; 13:28666-28675. [PMID: 37790097 PMCID: PMC10543206 DOI: 10.1039/d3ra05070j] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/24/2023] [Indexed: 10/05/2023] Open
Abstract
Plasmonic nanoparticles such as Ag have gained great interest in the biomedical domain and chemical analysis due to their unique optical properties. Herein, we report a simple, cost-effective, and highly selective colorimetric sensor of mercury(ii) based on E. diffusum (horsetail) extract-functionalized Ag nanoparticles (ED-AgNPs). The ED-AgNPs were synthesized by exploiting the coordination of Ag+ with the various functional groups of ED extract under sunlight exposure for only tens of seconds. ED-AgNPs (63 nm) were characterized using various techniques such as UV-vis, FTIR, DLS, SEM and EDX. FTIR spectra suggested the successful encapsulation of the AgNPs surface with ED extract and XRD confirmed its crystalline nature. This ED-AgNPs colorimetric sensor revealed remarkable selectivity towards Hg2+ in aqueous solution among other transition metal ions through a redox reaction mechanism. Besides, the sensor exhibited high sensitivity with rapid response and a detection limit of 70 nM. The sensor demonstrated feasibility for Hg(ii) detection in spiked tap and river water samples. In addition, the synthesized ED-AgNPs revealed enhanced antimicrobial activity with higher efficacy against the Gram-positive bacterium (L. monocytogenes with an inhibition zone of 18 mm) than the Gram-negative bacterium (E. coli with an inhibition zone of 10 mm). The simplicity and adaptability of this colorimetric sensor render it a promising candidate for on-site and point-of-care detection of heavy metal ions in diverse conditions.
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Affiliation(s)
- Amina Jabbar
- Institute of Chemistry, University of Sargodha Sargodha 40100 Pakistan
| | - Azhar Abbas
- Institute of Chemistry, University of Sargodha Sargodha 40100 Pakistan
- Department of Chemistry, Government Ambala Muslim College Sargodha 40100 Pakistan
| | - Nasir Assad
- Institute of Chemistry, University of Sargodha Sargodha 40100 Pakistan
| | | | - Hassan A Alhazmi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University Jazan 82912 Saudi Arabia
- Substance Abuse and Toxicology Research Centre, Jazan University Jazan 82912 Saudi Arabia
| | - Asim Najmi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University Jazan 82912 Saudi Arabia
| | - Khalid Zoghebi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University Jazan 82912 Saudi Arabia
| | - Mohammed Al Bratty
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University Jazan 82912 Saudi Arabia
| | - Ali Hanbashi
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University Jazan 82912 Saudi Arabia
| | - Hatem M A Amin
- Chemistry Department, Faculty of Science, Cairo University Giza 12613 Egypt
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Paul S, Nandi S, Das M, Bora A, Hossain MT, Ghosh S, Giri PK. Two-dimensional bismuth oxyselenide quantum dots as nanosensors for selective metal ion detection over a wide dynamic range: sensing mechanism and selectivity. NANOSCALE 2023; 15:12612-12625. [PMID: 37462457 DOI: 10.1039/d3nr02029k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
Bismuth oxyselenide (Bi2O2Se) nanosheets, a new 2D non-van der Waals nanomaterial having unique semiconducting properties, could be favorable for various sensing applications. In the present report, a top-down chemical approach was adopted to synthesize ultrathin Bi2O2Se quantum dots (QDs) in an appropriate solution. The as-prepared 2D Bi2O2Se QDs with an average size of ∼3 nm, exhibiting strong visible fluorescence, were utilized for heavy-metal ion detection with high selectivity. The QDs show a high optical band gap and a reasonably high fluorescence quantum yield (∼4%) in the green region without any functionalization. A series of heavy metal ions were detected using these QDs. The as-prepared QDs exhibit selective detection of Fe3+ over a wide dynamic range with a high quenching ratio and a low detection limit (<0.5 μM). The mechanism of visible fluorescence and Fe3+ ion-induced quenching was investigated in detail based on a model involving adsorption and charge transfer. Density functional theory (DFT) first principles calculations show that fluorescence quenching occurred selectively due to the efficient trapping of electrons in the bandgap states created by the Fe atoms. This work presents a sustainable and scalable method to synthesize 2D Bi2O2Se QDs for heavy metal ion sensing over a wide dynamic range and these 2D QDs could find potential uses in gas sensors, biosensors and optoelectronics.
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Affiliation(s)
- Sumana Paul
- Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, India.
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Sanju Nandi
- Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Mandira Das
- Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Abhilasha Bora
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Md Tarik Hossain
- Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Subhradip Ghosh
- Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - P K Giri
- Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, India.
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India
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May BM, Fakayode OJ, Bambo MF, Mishra AK, Nxumalo EN. Fluorescence sensing and adsorption kinetics of Gd-doped AgInS 2 I-III-VI quantum dots - A case study of Ag + ions interactions. Heliyon 2023; 9:e19020. [PMID: 37664718 PMCID: PMC10469056 DOI: 10.1016/j.heliyon.2023.e19020] [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: 05/10/2023] [Revised: 08/04/2023] [Accepted: 08/07/2023] [Indexed: 09/05/2023] Open
Abstract
The poor fluorescence properties of magneto-fluorescent paramagnetic-ion (Gd, Mn, or Co) doped I-III-VI quantum dots (QDs) at higher paramagnetic-ion doping concentrations have limited their use in magnetic-driven water-based applications. This work presents, for the first time, the use of stable magneto-fluorescent Gd-doped AgInS2 QDs at high Gd mole ratios of 16, 20, and 30 for the fluorescence detection and adsorption of Ag+ ions in water environments. The effect of pH, initial concentration, contact time, and adsorbent dosage were systematically evaluated. The AgInS2 QDs with the least Gd mole ratio (16) exhibited the best fluorescence characteristics (LOD = 0.88, R2 = 0.9549) while all materials showed good adsorption properties under optimized conditions (pH of 2, initial concentration of 30 ppm, contact time of 10 min and adsorbent dosage of 0.02 g) and a pseudo 2nd order reaction was followed. The adsorption mechanism was proposed to be a combination of ion-exchange, electrostatic interaction, complexation, and diffusion processes. Application in environmental wastewater samples revealed complete removal of Ag + ions alongside Ti2+ Pb2+, Ni2+, Cr3+, and Zn2+ ions.
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Affiliation(s)
- Bambesiwe M. May
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering, and Technology, University of South Africa, Florida Campus, 28 Pioneer Avenue, Roodepoort, 1709, Johannesburg, South Africa
- DSI/Mintek Nanotechnology Innovation Centre, Advanced Materials Division, Mintek, 200 Malibongwe Drive, Randburg, Johannesburg, South Africa
| | - Olayemi J. Fakayode
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering, and Technology, University of South Africa, Florida Campus, 28 Pioneer Avenue, Roodepoort, 1709, Johannesburg, South Africa
| | - Mokae F. Bambo
- DSI/Mintek Nanotechnology Innovation Centre, Advanced Materials Division, Mintek, 200 Malibongwe Drive, Randburg, Johannesburg, South Africa
| | - Ajay K. Mishra
- Department of Chemistry, Durban University of Technology, Steve Biko Road, Durban, 400, South Africa
- Department of Chemical and Metallurgical, Vanderbijlpark Campus, Vaal University of Technology, Private Bag X021, Vanderbijlpark, South Africa
| | - Edward N. Nxumalo
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering, and Technology, University of South Africa, Florida Campus, 28 Pioneer Avenue, Roodepoort, 1709, Johannesburg, South Africa
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9
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Chen T, Chen Y, Li Y, Liang M, Wu W, Wang Y. A Review on Multiple I-III-VI Quantum Dots: Preparation and Enhanced Luminescence Properties. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5039. [PMID: 37512312 PMCID: PMC10384050 DOI: 10.3390/ma16145039] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/07/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023]
Abstract
I-III-VI type QDs have unique optoelectronic properties such as low toxicity, tunable bandgaps, large Stokes shifts and a long photoluminescence lifetime, and their emission range can be continuously tuned in the visible to near-infrared light region by changing their chemical composition. Moreover, they can avoid the use of heavy metal elements such as Cd, Hg and Pb and highly toxic anions, i.e., Se, Te, P and As. These advantages make them promising candidates to replace traditional binary QDs in applications such as light-emitting diodes, solar cells, photodetectors, bioimaging fields, etc. Compared with binary QDs, multiple QDs contain many different types of metal ions. Therefore, the problem of different reaction rates between the metal ions arises, causing more defects inside the crystal and poor fluorescence properties of QDs, which can be effectively improved by doping metal ions (Zn2+, Mn2+ and Cu+) or surface coating. In this review, the luminous mechanism of I-III-VI type QDs based on their structure and composition is introduced. Meanwhile, we focus on the various synthesis methods and improvement strategies like metal ion doping and surface coating from recent years. The primary applications in the field of optoelectronics are also summarized. Finally, a perspective on the challenges and future perspectives of I-III-VI type QDs is proposed as well.
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Affiliation(s)
- Ting Chen
- Institute of Materials Science & Devices, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Yuanhong Chen
- Institute of Materials Science & Devices, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Youpeng Li
- Institute of Materials Science & Devices, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Mengbiao Liang
- Institute of Materials Science & Devices, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Wenkui Wu
- Institute of Materials Science & Devices, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Yude Wang
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650504, China
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Yang F, Yang B, Gu X, Li M, Qi K, Yan Y. Detection of enrofloxacin residues in dairy products based on their fluorescence quenching effect on AgInS 2 QDs. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 301:122985. [PMID: 37311364 DOI: 10.1016/j.saa.2023.122985] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/29/2023] [Accepted: 06/04/2023] [Indexed: 06/15/2023]
Abstract
Water-soluble AgInS2 (AIS) quantum dots (QDs) were successfully prepared through the one-pot water phase method with thioglycolic acid (TGA) as the stabilizing agent. Because enrofloxacin (ENR) effectively quenches the fluorescence of AIS QDs, a highly-sensitive fluorescence detection method is proposed to detect ENR residues in milk. Under optimal detection conditions, there was a good linear relationship between the relative fluorescence quenching amount (ΔF/F0) of AgInS2 with ENR and ENR concentration (C). The detection range was 0.3125-20.00 μg/mL, r = 0.9964, and the detection limit (LOD) was 0.024 μg/mL (n = 11). The average recovery of ENR in milk ranged from 95.43 to 114.28%. The method established in this study has advantages including a high sensitivity, a low detection limit, simple operation and a low cost. The fluorescence quenching mechanism of AIS QDs with ENR was discussed and the dynamic quenching mechanism of light-induced electron transfer was proposed.
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Affiliation(s)
- Fengjiao Yang
- College of Pharmacy, Dali University, Dali 671000, Yunnan, China
| | - Bingyu Yang
- College of Pharmacy, Dali University, Dali 671000, Yunnan, China
| | - Xinyue Gu
- College of Pharmacy, Dali University, Dali 671000, Yunnan, China
| | - Minghua Li
- College of Pharmacy, Dali University, Dali 671000, Yunnan, China
| | - Kezhen Qi
- College of Pharmacy, Dali University, Dali 671000, Yunnan, China.
| | - Ya Yan
- College of Pharmacy, Dali University, Dali 671000, Yunnan, China; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China.
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11
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Mei D, Yan B. Flumequine-mediated fluorescent zeolitic imidazolate framework functionalized by Eu 3+ for sensitive and selective detection of UO 22+, Ni 2+ and Cu 2+ in nuclear wastewater. JOURNAL OF HAZARDOUS MATERIALS 2023; 447:130822. [PMID: 36680898 DOI: 10.1016/j.jhazmat.2023.130822] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/05/2023] [Accepted: 01/16/2023] [Indexed: 06/17/2023]
Abstract
Currently, antibiotics and heavy metal contaminants have posed a great threat for ecological security and human health. Herein, the lanthanide functionalized ZIF (named ZIF-90-PABA-Eu) is constructed by coordinating with Eu3+ via p-aminobenzoic acid intermediate. Due to the excellent fluorescence properties, the novel fluorescent probe can selectively monitor flumequine based on "turn on" mode. Furthermore, the obtained new material (named ZIF-90-PABA-Eu-Flu) can be used as "turn off" sensor for selective detection of both radioactive and nonradioactive heavy metal ions (UO22+, Ni2+ and Cu2+) which are the main component of nuclear industrial wastewater. ZIF-90-PABA-Eu-Flu shows ultra-short fluorescence response time (3 s) and ultra-low limit of detection (9.0 × 10-3, 1.3 × 10-2 and 6.1 × 10-4 ppm) for three metal ions, which may be attributed to its good affinity with UO22+, Ni2+ and Cu2+. Moreover, principal component analysis (PCA) is applied to distinguish the three metal ions. Additionally, the possible sensing mechanism is investigated by the UV-vis spectra, luminescence lifetimes and theoretical calculation analysis. Based on these results, ZIF-90-PABA-Eu possesses promising potential in practical application and provides insight for the design of novel probes to continuously monitor flumequine, radioactive and nonradioactive heavy metal ions.
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Affiliation(s)
- Douchao Mei
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Bing Yan
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China.
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12
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Zhang MY, Yi FY, Guo QZ, Luo FL, Liu LJ, Guo JF. A ratiometric luminescence sensing platform based on lanthanide-based silica nanoparticles for selective and sensitive detection of Fe 3+ and Cu 2+ ions. Dalton Trans 2023; 52:3300-3307. [PMID: 36847192 DOI: 10.1039/d3dt00119a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Detection of Fe(III) and Cu(II) in water is highly desirable because their abnormal levels can cause serious harm to human health and environmental safety. In this work, a ratiometric luminescence sensing platform based on lanthanide-based silica nanoparticles was constructed for the detection of Fe3+ and Cu2+ ions. The terbium-silica nanoparticles (named SiO2@Tb) with dual-emission signals were successfully prepared by grafting Tb3+ ions onto trimellitic anhydride (TMA) functionalized silica nanospheres. It can serve as a ratiometric fluorescent probe for the detection of Fe3+ and Cu2+ ions in water with the green emission of Tb3+ ions as a response signal and the blue emission of silica nanospheres as the reference signal. Significantly, an easy-to-differentiate color change for visual detection was also realized. SiO2@Tb shows high sensitivity even in very low concentration regions towards the sensing of Fe3+ and Cu2+ with low detection limits of 0.75 μM and 0.91 μM, respectively. Moreover, the mechanism for the luminescence quenching of SiO2@Tb was systematically investigated, and was attributed to the synergetic effect of the absorption competition quenching (ACQ) mechanism and cation exchange. This study demonstrates that SiO2@Tb can be employed as a promising fluorescent probe for the detection of Fe3+ and Cu2+ ions, and the combination of lanthanide ions with silica nanoparticles is an effective strategy to construct a ratiometric fluorescent sensing platform for the determination of analytes in environmental detection.
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Affiliation(s)
- Meng-Yao Zhang
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
| | - Feng-Ying Yi
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
| | - Qing-Zhong Guo
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
| | - Fa-Liang Luo
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan, 750021, China
| | - Lan-Jun Liu
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, China. .,School of Civil Engineering and Architecture, Wuhan Institute of Technology, Wuhan 430205, China.
| | - Jun-Fang Guo
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
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13
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Fang Z, Huang Y, Zhang Y, ZHao F, Li F, ZHu Q, Jiang G. High selectivity and fluorescence reversible Eu 3+ sensor based on GSH-capped AgZnInS QDs. OPTICS LETTERS 2023; 48:944-947. [PMID: 36790981 DOI: 10.1364/ol.479298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 12/31/2022] [Indexed: 06/18/2023]
Abstract
Fluorescence sensors for trivalent europium ions (Eu3+) are seldom reported. We study the synthesis of water-soluble quaternary quantum dots (QDs) and investigate their fluorescence sensor application for detecting Eu3+ The as-synthesized glutathione (GSH)-capped AgZnInS (AZIS) QDs show great sensitivity and selectivity to Eu3+among 12 different metal cations. Detailed experimental results indicate that the fluorescence response of the AZIS QDs to increasing concentration of Eu3+ ([Eu3+]) include intensity quenching and peak wavelength blueshift. With the addition of OH-, the fluorescence response reverses. Electron transfer is considered to be the mechanism for the fluorescence quenching and peak wavelength blueshift of the GSH-capped AZIS QDs. Our work provides a new, to the best of our knowledge, method for the detection of Eu3+.
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14
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Saeid Hosseini S, Azadi Tabar M, F. J. Vankelecom I, F. M. Denayer J. Progress in High Performance Membrane Materials and Processes for Biogas Production, Upgrading and Conversion. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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15
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Fluorescent Carbon Quantum Dots for Effective Tumor Diagnosis: A Comprehensive Review. BIOMEDICAL ENGINEERING ADVANCES 2023. [DOI: 10.1016/j.bea.2023.100072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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16
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Islas-Rodriguez N, Muñoz R, Rodriguez JA, Vazquez-Garcia RA, Reyes M. Integration of ternary I-III-VI quantum dots in light-emitting diodes. Front Chem 2023; 11:1106778. [PMID: 37035113 PMCID: PMC10076594 DOI: 10.3389/fchem.2023.1106778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 03/13/2023] [Indexed: 04/11/2023] Open
Abstract
Ternary I-III-VI quantum dots (TQDs) are semiconductor nanomaterials that have been gradually incorporated in the fabrication of light-emitting diodes (LEDs) over the last 10 years due to their physicochemical and photoluminescence properties, such as adequate quantum yield values, tunable wavelength emission, and easy synthesis strategies, but mainly because of their low toxicity that allows them to be excellent candidates to compete with conventional Cd-Pb-based QDs. This review addresses the different strategies to obtain TQDs and how synthesis conditions influence their physicochemical properties, followed by the LEDs parameters achieved using TQDs. The second part of the review summarizes how TQDs are integrated into LEDs and white light-emitting diodes (WLEDs). Furthermore, an insight into the state-of-the-art LEDs development using TQDs, including its advantages and disadvantages and the challenges to overcome, is presented at the end of the review.
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Affiliation(s)
- Nery Islas-Rodriguez
- Universidad Autonoma del Estado de Hidalgo (UAEH). Area Academica de Ciencias de La Tierra y Materiales, Hgo, Mexico
| | - Raybel Muñoz
- Universidad Autonoma del Estado de Hidalgo (UAEH). Area Academica de Quimica, Hidalgo, Mineral de la Reforma, Mexico
| | - Jose A. Rodriguez
- Universidad Autonoma del Estado de Hidalgo (UAEH). Area Academica de Quimica, Hidalgo, Mineral de la Reforma, Mexico
| | - Rosa A. Vazquez-Garcia
- Universidad Autonoma del Estado de Hidalgo (UAEH). Area Academica de Ciencias de La Tierra y Materiales, Hgo, Mexico
| | - Martin Reyes
- Universidad Autonoma del Estado de Hidalgo (UAEH). Area Academica de Ciencias de La Tierra y Materiales, Hgo, Mexico
- *Correspondence: Martin Reyes,
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Li FY, Chung YC. Fabrication of “electroactive cells” using bio-inspired polydopamine-derived carbon nanoparticles for manipulation of cells with electrical stimulation. Front Bioeng Biotechnol 2022; 10:949308. [PMID: 35957635 PMCID: PMC9358047 DOI: 10.3389/fbioe.2022.949308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 06/27/2022] [Indexed: 11/13/2022] Open
Abstract
In this study, we report some bio-inspired carbon nanoparticles (CNPs) that exhibit high fluorescence quantum yields, good conductivity, excellent dispersion in aqueous solution, high cell-uptake efficiency, and no cytotoxicity as well. We were inspired by mussels’ adhesive components to synthesize polydopamine nanoparticles and then use a carbonization process to prepare fluorescent CNPs. Using some surfactants, we could control the sizes of CNPs and increase their dispersion in water. Fluorescence spectroscopy confirmed the excitation of CNPs at 360 nm and emission of blue light with a 400–450 nm wavelength. High quantum yields of greater than 20% were also measured. Transmission electron microscopy proved that the addition of surfactants could shrink particles to several nanometers in size. The fluorescent and conductive CNPs were applied to stain L929 fibroblast cells in vitro, finding no harmful effects on cells. Due to the polydopamine-derived CNPs’ good electrical, fluorescent, and biocompatible response, we designed a platform to manipulate the cells after endocytosis of conductive CNPs to observe the effects of electrical stimulation on cell attachment, cell growth, and cell death. The nanoparticles endocytosed by cells seemed more easily attracted to the electric field, leading to enhanced cell attachment and growth. Therefore, CNP uptake can increase the attachment of cells onto a conductive plate electrode in a short time (within 10 min at 4°C). When the source of the electric field was changed to rod electrodes in the medium, cells that had been pre-adsorbed onto a non-conductive plate were desorbed from the plate and destroyed. Therefore, addition of CNPs during cell incubation can allow control of cell growth and death via manipulation of electric fields.
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Affiliation(s)
- Fang-Yi Li
- Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung, Taiwan
| | - Yi-Chang Chung
- Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung, Taiwan
- Research Center of Biomimetics and Medicare Technology, National University of Kaohsiung, Kaohsiung, Taiwan
- *Correspondence: Yi-Chang Chung,
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18
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Naderi N, Hosseini SS, Atassi Y. Tailoring the morphology and performance of polyacrylonitrile ultrafiltration membranes for produced water treatment via solvent mixture strategy. Chem Eng Technol 2022. [DOI: 10.1002/ceat.202100638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Noushin Naderi
- Membrane Science and Technology Research Group, Department of Chemical Engineering Tarbiat Modares University Jalal-Ale-Ahmad Tehran Iran
| | - Seyed Saeid Hosseini
- Membrane Science and Technology Research Group, Department of Chemical Engineering Tarbiat Modares University Jalal-Ale-Ahmad Tehran Iran
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology University of South Africa Johannesburg South Africa
| | - Yomen Atassi
- Department of Applied Physics Higher Institute for Applied Sciences and Technology Damascus Syria
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