1
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Marković ZM, Milivojević DD, Kovač J, Todorović Marković BM. Phloroglucinol-Based Carbon Quantum Dots/Polyurethane Composite Films: How Structure of Carbon Quantum Dots Affects Antibacterial and Antibiofouling Efficiency of Composite Films. Polymers (Basel) 2024; 16:1646. [PMID: 38931997 PMCID: PMC11207477 DOI: 10.3390/polym16121646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 05/30/2024] [Accepted: 06/02/2024] [Indexed: 06/28/2024] Open
Abstract
Nowadays, bacteria resistance to many antibiotics is a huge problem, especially in clinics and other parts of the healthcare system. This critical health issue requires a dynamic approach to produce new types of antibacterial coatings to combat various pathogen microbes. In this research, we prepared a new type of carbon quantum dots based on phloroglucinol using the bottom-up method. Polyurethane composite films were produced using the swell-encapsulation-shrink method. Detailed electrostatic force and viscoelastic microscopy of carbon quantum dots revealed inhomogeneous structure characterized by electron-rich/soft and electron-poor/hard regions. The uncommon photoluminescence spectrum of carbon quantum dots core had a multipeak structure. Several tests confirmed that carbon quantum dots and composite films produced singlet oxygen. Antibacterial and antibiofouling efficiency of composite films was tested on eight bacteria strains and three bacteria biofilms.
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Affiliation(s)
- Zoran M. Marković
- Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11158 Belgrade, Serbia;
| | - Dušan D. Milivojević
- Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11158 Belgrade, Serbia;
| | - Janez Kovač
- Department of Surface Engineering, Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia;
| | - Biljana M. Todorović Marković
- Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11158 Belgrade, Serbia;
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2
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Zhang X, Liu X, Liu P, Li B, Xu Y. Ultralong afterglow of heavy-atom-free carbon dots with a phosphorescence lifetime of up to 3.7 s for encryption and fingerprinting description. Dalton Trans 2024; 53:4671-4679. [PMID: 38358363 DOI: 10.1039/d4dt00053f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Metal-free room-temperature phosphorescent (RTP) materials with changeable colors have attracted great attention in anti-counterfeiting information encryption. Most ultralong-lifetime RTP (URTP) luminophores are traditionally obtained through heavy atom effects via enhancing the spin-orbit coupling efficiency. Here, we report the self-assembly of URTP carbon dots (CDs) using diphenylaminourea as the precursor through a thermal-evaporation assisted covalent-binding approach in the presence of boric acid (BA). The BA-functionalized diphenylaminourea-derived CDs (denoted as D-CDs1.5/BA composites) show a rigid network structure with B-C linkages connected to the surface of the CDs, which can effectively suppress the free vibration of CDs to promote intersystem crossover, finally resulting in an excellent URTP afterglow performance. They feature a low singlet-triplet energy gap and reduced nonradiative attenuation properties. As a result, the D-CDs1.5/BA composites exhibit a bifunctional fluorescence/phosphorescence performance with a high phosphorescence quantum efficiency (12.67%) and an ultra-long green afterglow phosphorescence lifetime of up to 3.66 s. A high-level information encryption and fingerprinting description based on the URTP D-CDs1.5/BA composites were then investigated. This work contributes to the feasible design and preparation of novel URTP CD materials with both ultra-long afterglow and a high phosphorescence efficiency, making them promising candidates for advanced anti-counterfeiting applications.
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Affiliation(s)
- Xinlei Zhang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, Liaoning 110819, PR China.
| | - Xia Liu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, Liaoning 110819, PR China.
| | - Peng Liu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, Liaoning 110819, PR China.
| | - Bohan Li
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, Liaoning 110819, PR China.
| | - Yan Xu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, Liaoning 110819, PR China.
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3
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Zhu K, Yan B. Multifunctional Eu(III)-modified HOFs: roxarsone and aristolochic acid carcinogen monitoring and latent fingerprint identification based on artificial intelligence. MATERIALS HORIZONS 2023; 10:5782-5795. [PMID: 37814901 DOI: 10.1039/d3mh01253k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
The exploration of multifunctional materials and intelligent technologies used for fluorescence sensing and latent fingerprint (LFP) identification is a research hotspot of material science. In this study, an emerging crystalline luminescent material, Eu3+-functionalized hydrogen-bonded organic framework (Eu@HOF-BTB, Eu@1), is fabricated successfully. Eu@1 can emit purple red fluorescence with a high photoluminescence quantum yield of 36.82%. Combined with artificial intelligence (AI) algorithms including support vector machine, principal component analysis, and hierarchical clustering analysis, Eu@1 as a sensor can concurrently distinguish two carcinogens, roxarsone and aristolochic acid, based on different mechanisms. The sensing process exhibits high selectivity, high efficiency, and excellent anti-interference. Meanwhile, Eu@1 is also an excellent eikonogen for LFP identification with high-resolution and high-contrast. Based on an automatic fingerprint identification system, the simultaneous differentiation of two fingerprint images is achieved. Moreover, a simulation experiment of criminal arrest is conducted. By virtue of the Alexnet-based fingerprint analysis platform of AI, unknown LFPs can be compared with a database to identify the criminal within one second with over 90% recognition accuracy. With AI technology, HOFs are applied for the first time in the LFP identification field, which provides a new material and solution for investigators to track criminal clues and handle cases efficiently.
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Affiliation(s)
- Kai Zhu
- 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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4
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Mandal T, Mishra SR, Singh V. Comprehensive advances in the synthesis, fluorescence mechanism and multifunctional applications of red-emitting carbon nanomaterials. NANOSCALE ADVANCES 2023; 5:5717-5765. [PMID: 37881704 PMCID: PMC10597556 DOI: 10.1039/d3na00447c] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/12/2023] [Indexed: 10/27/2023]
Abstract
Red emitting fluorescent carbon nanomaterials have drawn significant scientific interest in recent years due to their high quantum yield, water-dispersibility, photostability, biocompatibility, ease of surface functionalization, low cost and eco-friendliness. The red emissive characteristics of fluorescent carbon nanomaterials generally depend on the carbon source, reaction time, synthetic approach/methodology, surface functional groups, average size, and other reaction environments, which directly or indirectly help to achieve red emission. The importance of several factors to achieve red fluorescent carbon nanomaterials is highlighted in this review. Numerous plausible theories have been explained in detail to understand the origin of red fluorescence and tunable emission in these carbon-based nanostructures. The above advantages and fluorescence in the red region make them a potential candidate for multifunctional applications in various current fields. Therefore, this review focused on the recent advances in the synthesis approach, mechanism of fluorescence, and electronic and optical properties of red-emitting fluorescent carbon nanomaterials. This review also explains the several innovative applications of red-emitting fluorescent carbon nanomaterials such as biomedicine, light-emitting devices, sensing, photocatalysis, energy, anticounterfeiting, fluorescent silk, artificial photosynthesis, etc. It is hoped that by choosing appropriate methods, the present review can inspire and guide future research on the design of red emissive fluorescent carbon nanomaterials for potential advancements in multifunctional applications.
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Affiliation(s)
- Tuhin Mandal
- Environment Emission and CRM Section, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
| | - Shiv Rag Mishra
- Environment Emission and CRM Section, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
| | - Vikram Singh
- Environment Emission and CRM Section, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
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5
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Majani SS, Meghana, S H S, J S, Umesh S, Shivamallu C, Iqbal M, Amachawadi RG, K N V, Kollur SP. Barium Lanthanum Oxide Nanosheets in Photocatalytic and Forensic Applications: One-Pot Synthesis and Characterization. Molecules 2023; 28:7228. [PMID: 37894707 PMCID: PMC10609402 DOI: 10.3390/molecules28207228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/12/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
The present work elucidates the fabrication of Barium Lanthanum Oxide nanosheets (BaLa2O4 NSs) via a simple one-pot precipitation method. The acquired results show an orthorhombic crystal system with an average crystallite size of 27 nm. The morphological studies revealed irregular-shaped sheets stacked together in a layered structure, with the confirmation of the precursor elements. The diffused reflectance studies revealed a strong absorption between 200 nm and 350 nm, from which the band-gap energy was evaluated to be 4.03 eV. Furthermore, the fluorescence spectrum was recorded for the prepared samples; the excitation spectrum shows a strong peak at 397 nm, attributed to the 4F7/2→4G11/2 transition, while the emission shows two prominent peaks at 420 nm (4G7/2→4F7/2) and 440 nm (4G5/2→4F7/2). The acquired emission results were utilized to confirm the color emission using a chromaticity plot, which found the coordinates to be at (0.1529 0.1040), and the calculated temperature was 3171 K. The as-prepared nanosheets were utilized in detecting latent fingerprints (LFPs) on various non-porous surfaces. The powder-dusting method was used to develop latent fingerprints on various non-porous surfaces, which resulted in detecting all the three ridge patterns. Furthermore, the as-synthesized nanosheets were used to degrade methyl red (MR) dye, the results of which show more than 60% degradation at the 70th minute. It was also found that there was no further degradation after 70 min. All the acquired results suggest the clear potential of the prepared BaLa2O4 NSs for use in advanced forensic and photocatalytic applications.
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Affiliation(s)
- Sanjay S. Majani
- School of Physical Sciences, Amrita Vishwa Vidyapeetham, Mysuru Campus, Mysuru 570 022, Karnataka, India; (S.S.M.)
| | - Meghana
- School of Physical Sciences, Amrita Vishwa Vidyapeetham, Mysuru Campus, Mysuru 570 022, Karnataka, India; (S.S.M.)
| | - Sowmyashree S H
- School of Physical Sciences, Amrita Vishwa Vidyapeetham, Mysuru Campus, Mysuru 570 022, Karnataka, India; (S.S.M.)
| | - Sowjanyashree J
- School of Physical Sciences, Amrita Vishwa Vidyapeetham, Mysuru Campus, Mysuru 570 022, Karnataka, India; (S.S.M.)
| | - Sahaja Umesh
- School of Physical Sciences, Amrita Vishwa Vidyapeetham, Mysuru Campus, Mysuru 570 022, Karnataka, India; (S.S.M.)
| | - Chandan Shivamallu
- Department of Biotechnology and Bioinformatics, JSS Academy of Higher Education and Research, Mysuru 570 015, Karnataka, India;
| | - Muzaffar Iqbal
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Raghavendra G. Amachawadi
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506-5606, USA;
| | - Venkatachalaiah K N
- Department of Physics, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Bengaluru Campus, Bengaluru 560 035, Karnataka, India
| | - Shiva Prasad Kollur
- School of Physical Sciences, Amrita Vishwa Vidyapeetham, Mysuru Campus, Mysuru 570 022, Karnataka, India; (S.S.M.)
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6
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Zhang H, Guo X, Jian K, Fu L, Zhao X. Rapid Preparation of Long-Wavelength Emissive Carbon Dots for Information Encryption Using the Microwave-Assisted Method. Inorg Chem 2023; 62:13847-13856. [PMID: 37583357 DOI: 10.1021/acs.inorgchem.3c01677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
The synthesis of long-wavelength emission fluorescent carbon dots is not common, and it is even more difficult to quickly synthesize within 10 min. In this experiment, yellow, orange, and red B, N codoped fluorescent carbon dots were successfully synthesized using a microwave-assisted method with o-phenylenediamine as the carbon-nitrogen source, boric acid as the boron source, and potassium chloride as the catalyst in just 7 min. Based on the different contents of B, N element doping, there are differences in their surface structures, resulting in differences in the luminescence properties of the synthesized carbon dots. Long-wavelength carbon dots can avoid interference from the blue fluorescence of filter papers and have a clearer display in information encryption. Therefore, three types of carbon dots were mixed with PVP to produce fluorescent inks, and anticounterfeiting and encryption patterns were designed on the filter paper, displaying different fluorescence information under sunlight and UV light. In addition, the rich fluorescent colors were combined ingeniously to enable secondary encryption of information in the form of binary codes that increase the difficulty of decoding. These indicate that the three synthesized long-wavelength carbon dots have good application prospects in information encryption.
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Affiliation(s)
- Hongmei Zhang
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Xiangjun Guo
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Ke Jian
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Liming Fu
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Xihui Zhao
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological textiles, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China
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7
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Zhao L, Zhang D, Wang X, Li Y, Li Z, Wei H, Yao B, Ding G, Wang Z. Large-Scale Synthesis of Tunable Fluorescent Carbon Dots Powder for Light-Emitting Diodes and Fingerprint Identification. Molecules 2023; 28:5917. [PMID: 37570888 PMCID: PMC10421340 DOI: 10.3390/molecules28155917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 07/04/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
The emergence and fast development of carbon dots (CDs) provide an unprecedented opportunity for applications in the field of photoelectricity, but their practicability still suffers from complicated synthesis procedures and the substrate dependence of solid-state fluorescence. In this study, we design a unique microwave-assisted solid-phase synthesis route for preparing tunable fluorescent CD powders with yellow, orange, and red fluorescence (Y-CDs, O-CDs, R-CDs) by simply adjusting the mass ratio of reactants, a method which is suitable for the large-scale synthesis of CDs. The Y-/O-/R-CDs were systematically characterized using physics and spectroscopy techniques. Based on the perfect solid-state fluorescence performance of the proposed fluorescent CD powders, the Y-/O-/R-CDs were successfully applied for the construction of multi-color and white light-emitting diode devices at low cost. Furthermore, the Y-CDs displayed much higher yield and luminous efficiency than the O-CDs and R-CDs and were further used for fingerprint identification on the surfaces of glass sheets and tinfoil. In addition, the R-CD aqueous solution fluorescence is sensitive to pH, suggesting its use as a pH indicator for monitoring intracellular pH fluctuations. The proposed series of fluorescent powders composed of CDs may herald a new era in the application of optical components and criminal investigation fields.
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Affiliation(s)
- Lei Zhao
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China
| | - Dong Zhang
- School of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, China;
| | - Xin Wang
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (X.W.); (Z.L.); (H.W.); (B.Y.)
| | - Yang Li
- Lanzhou Hualian Xinminao Dental Clinic, Lanzhou 730000, China;
| | - Zihan Li
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (X.W.); (Z.L.); (H.W.); (B.Y.)
| | - Hua Wei
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (X.W.); (Z.L.); (H.W.); (B.Y.)
| | - Boxuan Yao
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (X.W.); (Z.L.); (H.W.); (B.Y.)
| | - Gongtao Ding
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China
| | - Zifan Wang
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China
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8
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Li P, Xu J, Shen Z, Liu W, An L, Qu D, Wang X, Sun Z. Synthesis of Multiple Emission Carbon Dots from Dihydroxybenzoic Acid via Decarboxylation Process. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2062. [PMID: 37513073 PMCID: PMC10383124 DOI: 10.3390/nano13142062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023]
Abstract
Carbon dots (CDs), as a new zero-dimensional carbon-based nanomaterial with desirable optical properties, exhibit great potential for many application fields. However, the preparation technique of multiple emission CDs with high yield is difficult and complex. Therefore, exploring the large-scale and straightforward synthesis of multicolor CDs from a simple carbon source is necessary. In this work, the solvent-free method prepares a series of multicolor emission CDs from dihydroxybenzoic acid (DHBA). The maximum emission wavelengths are 408, 445, 553, 580, and 610 nm, respectively, covering the visible light region. The 2,4- and 2,6-CDs possess the longer emission wavelength caused by the 2,4-, and 2,6-DHBA easily undergo decarboxylation to form the larger sp2 domain graphitized structure. These CDs incorporated with g-C3N4 can significantly improve the photocatalytic water-splitting hydrogen production rate by extending the visible light absorption and enhancing the charge separation efficiency. The long-wavelength emission CDs can further enhance photocatalytic activity primarily by improving visible light absorption efficiency.
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Affiliation(s)
- Pengfei Li
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
| | - Jijian Xu
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
| | - Ziye Shen
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
| | - Wenning Liu
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
| | - Li An
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
| | - Dan Qu
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
| | - Xiayan Wang
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
| | - Zaicheng Sun
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
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9
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Mohammed SJ, Omer KM, Hawaiz FE. Deep insights to explain the mechanism of carbon dot formation at various reaction times using the hydrothermal technique: FT-IR, 13C-NMR, 1H-NMR, and UV-visible spectroscopic approaches. RSC Adv 2023; 13:14340-14349. [PMID: 37180002 PMCID: PMC10170355 DOI: 10.1039/d3ra01646c] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
A well-explained mechanism for synthesizing carbon dots (CDs) is not yet explored and is still a subject of great debate and challenge. This study used a one-step hydrothermal method to prepare highly efficient, gram-scale, excellent water solubility, and blue fluorescent nitrogen-doped carbon dots (NCDs) with the particle size average distribution of around 5 nm from 4-aminoantipyrine. The effects of varying synthesis reaction times on the structure and mechanism formation of NCDs were investigated using spectroscopic methods, namely FT-IR, 13C-NMR, 1H-NMR, and UV-visible spectroscopies. The spectroscopic results indicated that increasing the reaction time affects the structure of the NCDs. As the hydrothermal synthesis reaction time is extended, the intensity of the peaks in the aromatic region decreases, and new peaks in the aliphatic and carbonyl group regions are generated, which display enhanced intensity. In addition, the photoluminescent quantum yield increases as the reaction time increases. The presence of a benzene ring in 4-aminoantipyrine is thought to contribute to the observed structural changes in NCDs. This is due to the increased noncovalent π-π stacking interactions of the aromatic ring during the carbon dot core formation. Moreover, the hydrolysis of the pyrazole ring in 4-aminoantipyrine results in polar functional groups attached to aliphatic carbons. As the reaction time prolongs, these functional groups progressively cover a larger portion of the surface of the NCDs. After 21 h of the synthesis process, the XRD spectrum of the produced NCDs illustrates a broad peak at 21.1°, indicating an amorphous turbostratic carbon phase. The d-spacing measured from the HR-TEM image is about 0.26 nm, which agrees with the (100) plane lattice of graphite carbon and confirms the purity of the NCD product with a surface covered by polar functional groups. This investigation will lead to a greater understanding of the effect of hydrothermal reaction time on the mechanism and structure of carbon dot synthesis. Moreover, it offers a simple, low-cost, and gram-scale method for creating high-quality NCDs crucial for various applications.
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Affiliation(s)
- Sewara J Mohammed
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani 46002 Kurdistan Regional Government Iraq
- Anesthesia Department, College of Health Sciences, Cihan University Sulaimaniya Sulaimaniya 46001 Kurdistan Region Iraq
| | - Khalid M Omer
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani 46002 Kurdistan Regional Government Iraq
| | - Farouq E Hawaiz
- Department of Chemistry, College of Education, Salahaddin University - Hawler Erbil Kurdistan Iraq
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10
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Red-emissive carbon dots based fluorescent and smartphone-integrated paper sensors for sensitive detection of carbendazim. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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11
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Chen L, Wang CF, Liu C, Chen S. Facile Access to Fabricate Carbon Dots and Perspective of Large-Scale Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022:e2206671. [PMID: 36479832 DOI: 10.1002/smll.202206671] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/17/2022] [Indexed: 06/17/2023]
Abstract
Carbon dots (CDs), fluorescent carbon nanoparticles with particle sizes < 10 nm, are constantly being developed for potential large-scale applications. Recently, methods allow CD synthesis to be carried out on large-scale preparation in a controlled fashion are potentially important for multiple disciplines, including bottom-up strategy, top-down method. In this review, the recent progresses in the research of the methods for large-scale production of CDs and their functionalization are summarized. Especially, the methods of CD synthesis, such as large-scale preparation, hydrothermal/solvothermal, microwave-assisted, magnetic hyperthermia microfluidic and other methods, along with functionalization of CDs, are summarized in detail. By promising applications of CDs, there are three aspects have been already reported, such as enhancing mechanical properties, flame retardancy, and energy storage. Also, future development of CDs is prospected.
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Affiliation(s)
- Lintao Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional, Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Cai-Feng Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional, Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Chang Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional, Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
| | - Su Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional, Polymer Materials, Nanjing Tech University, Nanjing, 210009, P. R. China
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12
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Wang B, Waterhouse GI, Lu S. Carbon dots: mysterious past, vibrant present, and expansive future. TRENDS IN CHEMISTRY 2022. [DOI: 10.1016/j.trechm.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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13
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Solvent-dependent carbon dots for multifunctional sensing of temperature, pH, and proton pump inhibitors. Anal Chim Acta 2022; 1228:340341. [DOI: 10.1016/j.aca.2022.340341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 11/20/2022]
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14
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Li Y, Peng D. Hydrophobic‐Binding‐Driven and Fluoresence‐Free Development of Aged Fingerprints Based on Zinc Oxide Nanoparticles. ChemistrySelect 2022. [DOI: 10.1002/slct.202202252] [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)
- Yayi Li
- Chongqing Institutes of Higher Education Key Forensic Science Laboratory Criminal Investigation School Southwest University of Political Science and Law Chongqing 401120 P.R. China
| | - Di Peng
- Chongqing Institutes of Higher Education Key Forensic Science Laboratory Criminal Investigation School Southwest University of Political Science and Law Chongqing 401120 P.R. China
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15
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Qin X, Fu C, Zhang J, Shao W, Qin X, Gui Y, Wang L, Guo H, Chen F, Jiang L, Wu G, Bikker FJ, Luo D. Direct preparation of solid carbon dots by pyrolysis of collagen waste and their applications in fluorescent sensing and imaging. Front Chem 2022; 10:1006389. [PMID: 36171998 PMCID: PMC9510749 DOI: 10.3389/fchem.2022.1006389] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
The fluorescent carbon dots (CDs) have found their extensive applications in sensing, bioimaging, and photoelectronic devices. In general terms, the synthesis of CDs is straight-forward, though their subsequent purification can be laborious. Therefore, there is a need for easier ways to generate solid CDs with a high conversion yield. Herein, we used collagen waste as a carbon source in producing solid CDs through a calcination procedure without additional chemical decomposition treatment of the raw material. Considering a mass of acid has destroyed the original protein macromolecules into the assembled structure with amino acids and peptide chains in the commercial extraction procedure of collagen product. The residual tissues were assembled with weak intermolecular interactions, which would easily undergo dehydration, polymerization, and carbonization during the heat treatment to produce solid CDs directly. The calcination parameters were surveyed to give the highest conversion yield at 78%, which occurred at 300°C for 2 h. N and S atomic doping CDs (N-CDs and S-CDs) were synthesized at a similar process except for immersion of the collagen waste in sulfuric acid or nitric acid in advance. Further experiments suggested the prepared CDs can serve as an excellent sensor platform for Fe3+ in an acid medium with high anti-interference. The cytotoxicity assays confirmed the biosafety and biocompatibility of the CDs, suggesting potential applications in bioimaging. This work provides a new avenue for preparing solid CDs with high conversion yield.
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Affiliation(s)
- Xiaoyun Qin
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, China
| | - Cuicui Fu
- Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, Netherlands
| | - Jin Zhang
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Wenlong Shao
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Xiaomei Qin
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Yanghai Gui
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Lan Wang
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Huishi Guo
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Fenghua Chen
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Liying Jiang
- School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Amsterdam Movement Science, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- Department of Oral Cell Biology, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Floris J. Bikker
- Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, Netherlands
- *Correspondence: Floris J. Bikker, ; Dan Luo,
| | - Dan Luo
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, China
- *Correspondence: Floris J. Bikker, ; Dan Luo,
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16
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Duan L, Zheng Q, Tu T. Instantaneous High-Resolution Visual Imaging of Latent Fingerprints in Water Using Color-Tunable AIE Pincer Complexes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2202540. [PMID: 35771543 DOI: 10.1002/adma.202202540] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 06/26/2022] [Indexed: 06/15/2023]
Abstract
Instant visualization of latent fingerprints is developed by using a series of water-soluble terpyridine zinc complexes as aggregation-induced emission probes in pure water, under UV light or ambient sunlight. By simply soaking, or spraying with an aqueous solution of the probe, bright yellow fluorescence images with high contrast and resolution are readily developed on various surfaces including tinfoil, glass, paper, steel, leather, and ceramic tile. Remarkably, latent fingerprints can be visualized within seconds including details of whorl and sweat pores. The color of emission can be tuned from blue to orange by modifying the pincer ligands, allowing direct imaging under sunlight. These inexpensive, water-resistant, and color-tunable probes provide a practical approach for latent fingerprints recording and analysis, security protection, as well as criminal investigation in different scenarios.
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Affiliation(s)
- Lixin Duan
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Qingshu Zheng
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Tao Tu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, P. R. China
- Green Catalysis Center and College of Chemistry, Zhengzhou University, 100 Kexue avenue, Zhengzhou, 450001, P. R. China
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17
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Bai J, Wang X, Zhu Y, Yuan G, Wu S, Qin F, Yu X, Ren L. Polymer types regulation strategy toward the synthesis of carbonized polymer dots with excitation-wavelength dependent or independent fluorescence. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.05.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Da X, Han Z, Yang Z, Zhang D, Hong R, Tao C, Lin H, Huang Y. Preparation of multicolor carbon dots with high fluorescence quantum yield and application in white LED. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139497] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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19
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Pyrolysis of single carbon sources in SBA-15: A recyclable solid phase synthesis to obtain uniform carbon dots with tunable luminescence. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.05.074] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Chen Y, Huang X, Li L, Wu J, Guo Y, Yao Y, Zhou L. Paper mill sludge-based carbon quantum dots as a specifically ratiometric fluorescent probe for the sensitive and selective detection of coptisine. LUMINESCENCE 2022; 37:1078-1086. [PMID: 35441456 DOI: 10.1002/bio.4260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 04/04/2022] [Accepted: 04/16/2022] [Indexed: 11/09/2022]
Abstract
Coptisine (COP), one of the bioactive components in Rhizoma Coptidis, has many pharmacological effects. Meanwhile, the determination of COP is essential in pharmacological and clinical applications. Herein, we prepared carbon quantum dots (CQDs) by one-step oil-thermal method using paper mill sludge (PMS) as precursor, and developed a ratiometric fluorescence method for the determination of COP. The structural and optical properties of PMS-CQDs were evaluated through HRTEM, FT-IR, XPS, XRD, UV-vis, fluorescence, zeta potential and fluorescence lifetime experiments. Fluorescence intensity ratio at 550 nm and 425 nm (I550 /I425 ) was recorded as an index for quantitative detection of COP. The detection concentration of COP ranges from 0.1 to 50 μM in good linear correlation (R2 = 0.9974) with a limit of detection of 0.028 μM (3σ/k). The quenching mechanism was deduced to be inner filter effect and static quenching. The ratiometric fluorescent probe showed impressive selectivity and sensitivity towards COP, and was successfully applied to the detection of COP in human urine with expected recoveries (95.22-111.00%) and relative standard deviation (0.46-2.95%), indicating that our developed method has a great application prospect in actual sample detection.
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Affiliation(s)
- Yingxin Chen
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, P.R. China
| | - Xiaotong Huang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, P.R. China
| | - Lu Li
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, P.R. China
| | - Junxian Wu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, P.R. China
| | - Yongqi Guo
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, P.R. China
| | - Yachao Yao
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, Guangzhou, P.R. China.,The Second School of Clinical Medicine, Southern Medical University, Guangzhou, P.R. China
| | - Lihua Zhou
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, P.R. China
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21
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Liu J, Kong T, Xiong HM. Mulberry-Leaves-Derived Red-Emissive Carbon Dots for Feeding Silkworms to Produce Brightly Fluorescent Silk. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2200152. [PMID: 35229375 DOI: 10.1002/adma.202200152] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/19/2022] [Indexed: 06/14/2023]
Abstract
Fluorescent silk has promising applications in dazzling textiles, biological engineering, and medical products, but the natural Bombyx mori silk has almost no fluorescence. Here carbon dots (CDs) made from mulberry leaves are reported, which have a strong near-infrared fluorescence with absolute quantum yield of 73% and a full width at half maximum of 20 nm. After feeding with such CDs, silkworms exhibit bright red fluorescence, grow healthily, cocoon normally, and turn to moths finally. The cocoons are pink in daylight and show bright red fluorescence under ultraviolet light. After breaking out of such cocoons, the red-emissive moths can mate and lay fluorescent eggs which would hatch normally. The growth cycle of the second generation of the test silkworm is the same as that of the control group, which means such CDs have excellent biocompatiblility. Dissection and analyses on both the test silkworms and cocoons disclose the metabolic route of the CDs, that is, the fluorescent CDs are absorbed by silkworms from alimentary canals, then transferred to silk glands, and finally to cocoons, while those unabsorbed CDs are excreted with the feces. All experimental results confirm the excellent biocompatibility and fluorescence stability of such CDs.
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Affiliation(s)
- Jun Liu
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Taoyi Kong
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Huan-Ming Xiong
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
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22
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Fu R, Yu L, Zhang J, Yu H, Feng S, Xu XD. Facile construction of aggregation-induced emission molecular liquids via Piers-Rubinsztajn reaction for green fluorescent ink. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.10.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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23
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Song TB, Huang ZH, Niu XQ, Zhang XR, Wei JS, Xiong HM. In-Situ Growth of Mn 3 O 4 Nanoparticles on Nitrogen-Doped Carbon Dots-Derived Carbon Skeleton as Cathode Materials for Aqueous Zinc Ion Batteries. CHEMSUSCHEM 2022; 15:e202102390. [PMID: 35122400 DOI: 10.1002/cssc.202102390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/11/2021] [Indexed: 06/14/2023]
Abstract
Mn3 O4 is a promising cathode material for aqueous zinc ion batteries (ZIBs) which is a new type of low cost, eco-friendly, high security energy storage system, while those previously reported electrochemical capacities of Mn3 O4 are far from its theoretical value. In this work, Mn3 O4 nanoparticles and nitrogen-doped carbon dots (NCDs) are synthesized together through an in-situ hydrothermal route, and then calcined to be a nanocomposite in which Mn3 O4 nanoparticles are anchored on a nitrogen-doped carbon skeleton (designated as Mn3 O4 /NCDs). Although the carbon content is only 3.9 wt.% in the Mn3 O4 /NCDs, the NCDs-derived carbon skeleton provides an electrically conductive network and a stable structure. Such a special nanocomposite has a large specific surface area, plenty of active sites, excellent hydrophilicity and good electronic conductivity. Owing to these structural merits, the Mn3 O4 /NCDs electrode exhibits a preeminent specific capacity of 443.6 mAh g-1 and 123.3 mAh g-1 at current densities of 0.1 and 1.5 A g-1 in ZIBs, respectively, which are far beyond the bare Mn3 O4 nanoparticles synthesized under the similar condition. The electrochemical measurement results prove that carbon dots, as a new type of carbon nanomaterials, have strong ability to modify and improve the performance of existing electrode materials, which may push these electrode materials forward to practical applications.
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Affiliation(s)
- Tian-Bing Song
- Department of Chemistry and Shanghai Key Laboratory of Molecular, Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Zun-Hui Huang
- Department of Chemistry and Shanghai Key Laboratory of Molecular, Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Xiao-Qing Niu
- Department of Chemistry and Shanghai Key Laboratory of Molecular, Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Xi-Rong Zhang
- Department of Chemistry and Shanghai Key Laboratory of Molecular, Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Ji-Shi Wei
- Department of Chemistry and Shanghai Key Laboratory of Molecular, Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Huan-Ming Xiong
- Department of Chemistry and Shanghai Key Laboratory of Molecular, Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
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24
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Qu Y, Bai X, Li D, Zhang X, Liang C, Zheng W, Qu S. Solution-processable carbon dots with efficient solid-state red/near-infrared emission. J Colloid Interface Sci 2022; 613:547-553. [PMID: 35063786 DOI: 10.1016/j.jcis.2021.12.192] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/04/2021] [Accepted: 12/31/2021] [Indexed: 11/28/2022]
Abstract
Carbon dots (CDs) emerge as promising luminescent materials for potential applications in optoelectronics on basis of their merits including low cost, eco-friendliness and strong, color-tunable photoluminescence (PL). However, the research on solid-state emissive CDs is still at the primary stage because of the aggregation-caused quenching (ACQ) of PL and their poor film-formation ability. In this work, we produce CDs with branched-polyethylenimine (b-PEI) chemically functionalized on the surfaces. The thus newly synthesized P-CDs successfully overcome the bottleneck of ACQ effect and display efficient red and NIR emission in aggregate state. Under the excitation of 520 nm, a strong red emission (maxima of 640 nm) with a high photoluminescence quantum yield (PLQY) of 21% was observed for the P-CDs in neat film. Moreover, this design strategy endows the P-CDs with good film-formation ability via solution spin-coating, which significantly increases its value for the film-based optoelectronic devices.
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Affiliation(s)
- Yanfei Qu
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Xuewei Bai
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Di Li
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China.
| | - Xiaoyu Zhang
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Chao Liang
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa 999078, Macau
| | - Weitao Zheng
- Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Changchun 130012, PR China.
| | - Songnan Qu
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa 999078, Macau.
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25
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Liang R, Huo L, Yu A, Wang J, Jia C, Li J. A micro-wave strategy for synthesizing room temperature phosphorescent materials. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.05.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Wu J, Chen G, Jia Y, Ji C, Wang Y, Zhou Y, Leblanc RM, Peng Z. Carbon dot composites for bioapplications: a review. J Mater Chem B 2022; 10:843-869. [DOI: 10.1039/d1tb02446a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent advancements in the synthesis of carbon dot composites and their applications in biomedical fields (bioimaging, drug delivery and biosensing) have been carefully summarized. The current challenges and future trends of CD composites in this field have also been discussed.
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Affiliation(s)
- Jiajia Wu
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
| | - Gonglin Chen
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
| | - Yinnong Jia
- Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, School of Pharmaceutical Sciences, Kunming Medical University, Kunming 650500, People's Republic of China
| | - Chunyu Ji
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
| | - Yuting Wang
- Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, School of Pharmaceutical Sciences, Kunming Medical University, Kunming 650500, People's Republic of China
| | - Yiqun Zhou
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, USA
| | - Roger M. Leblanc
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, USA
| | - Zhili Peng
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
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27
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Wang HJ, Hou WY, Kang J, Zhai XY, Chen HL, Hao YW, Wan GY. The facile preparation of solid-state fluorescent carbon dots with a high fluorescence quantum yield and their application in rapid latent fingerprint detection. Dalton Trans 2021; 50:12188-12196. [PMID: 34382986 DOI: 10.1039/d1dt01510a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Because of direct π-π interactions and excessive energy resonance transfer, it is very challenging to prepare carbon dots (CDs) with a high fluorescence quantum yield (QY) in the solid state. In this study, novel CDs which gave solid-state fluorescence (SSF) with high brightness were successfully prepared via a simple microwave-assisted method. The prepared ScCDs can emit strong blue fluorescence in the solid state, and the absolute QY of this ScCDs powder reaches 51.7%. Such a high QY means that the ScCDs powder could be successfully applied in rapid latent fingerprint (LFP) detection. The LFP detection performance of this ScCDs powder was studied in detail, and the results show that the LFPs developed using the ScCDs powder can be visualized with high definition and contrast under different conditions. This research not only developed a new type of SSF-emitting CDs, but it also proved that the developed CDs have great potential for applications in LFP detection, and this research may also provide inspiration and ideas for the design of new SSF-emitting CDs.
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Affiliation(s)
- Hai-Jiao Wang
- The Key Laboratory of Biomedical Material, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, China.
| | - Wan-Yi Hou
- The Key Laboratory of Biomedical Material, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, China.
| | - Jing Kang
- College of Life Sciences, Xinxiang Medical University, Xinxiang, 453003, China
| | - Xin-Yu Zhai
- The Key Laboratory of Biomedical Material, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, China.
| | - Hong-Li Chen
- The Key Laboratory of Biomedical Material, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, China.
| | - Yong-Wei Hao
- The Key Laboratory of Biomedical Material, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, China.
| | - Guo-Yun Wan
- The Key Laboratory of Biomedical Material, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, China.
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