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Kurniawan D, Caielli F, Thyagajaran K, Ostrikov KK, Chiang WH, Pai DZ. Operando time and space-resolved liquid-phase diagnostics reveal the plasma selective synthesis of nanographenes. NANOSCALE 2024; 16:15104-15112. [PMID: 39087506 DOI: 10.1039/d4nr01280a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
Coupling atmospheric-pressure low-temperature plasmas to electrochemical reactors enables the generation of highly reactive species at plasma-liquid interfaces. This type of plasma electrochemical reactor (PEC) has been used to synthesize fluorescent nitrogen-doped graphene quantum dots (NGQDs), which are usable for multifunctional applications in a facile, simple, and sustainable way. However, the synthesis mechanism remains poorly understood, as well as the location of synthesis. To research these issues, we present an in situ diagnostics study on liquid phase chemistry during the PEC synthesis of NGQDs from chitosan. Monitoring of the photoluminescence and UV-VIS absorption at different depths in the reaction medium during plasma treatment reveals that the NGQD production initiates at the plasma-liquid interface but its completion and/or accumulation occurs at a few millimetres depth below the interface, where the liquid ceases to flow convectively, as determined by particle image velocimetry. Our study provides insights into the plasma synthesis of fluorescent GQDs/NGQDs from carbon precursors that may prove useful for achieving the scalability of PEC processes up to continuous-flow or array reactors.
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Affiliation(s)
- Darwin Kurniawan
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan.
| | - Francesca Caielli
- Institut Pprime (CNRS-Université de Poitiers-ENSMA), Futuroscope Chasseneuil, F-86962, France.
| | - Karthik Thyagajaran
- Institut Pprime (CNRS-Université de Poitiers-ENSMA), Futuroscope Chasseneuil, F-86962, France.
| | - Kostya Ken Ostrikov
- School of Chemistry and Physics and QUT Centre for Materials Science, Queensland University of Science and Technology (QUT), Brisbane, QLD, 4000, Australia
| | - Wei-Hung Chiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan.
- Sustainable Electrochemical Energy Development (SEED) Center, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - David Z Pai
- Institut Pprime (CNRS-Université de Poitiers-ENSMA), Futuroscope Chasseneuil, F-86962, France.
- Laboratoire de Physique des Plasmas, CNRS, Sorbonne Université, Université Paris-Saclay, École Polytechnique, Institut Polytechnique de Paris, F-91128, Palaiseau, France
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2
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Vu Nhat P, Duy NVA, Tran TN, Si NT, Nguyen TA, To Van N, Van Nghia N, Schall P, Dinh VA, Dang MT. Optoelectronic Properties of Nitrogen-Doped Hexagonal Graphene Quantum Dots: A First-Principles Study. ACS OMEGA 2024; 9:20056-20065. [PMID: 38737018 PMCID: PMC11079900 DOI: 10.1021/acsomega.3c10501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 04/11/2024] [Accepted: 04/11/2024] [Indexed: 05/14/2024]
Abstract
Graphene quantum dots have been widely studied owing to their unique optical, electrical, and optoelectrical properties for various applications in solar devices. Here, we investigate the optoelectronic properties of hexagonal and nitrogen-doped graphene quantum dots using the first-principles method. We find that doping nitrogen atoms to hexagonal graphene quantum dots results in a significant red shift toward the visible light range as compared to that of the pristine graphene quantum dots, and the doped nitrogen atoms also induce a clear signature of anisotropy of the frontier orbitals induced by the electron correlation between the doped nitrogen atoms and their adjacent carbon atoms. Moreover, time-dependent density functional theory calculations with the M06-2X functional and 6-311++G(d,p) basis set reproduce well the experimental absorption spectra reported recently. These results provide us with a novel approach for more systematic investigations on next-generation solar devices with assembled quantum dots to improve their light selectivity as well as efficiency.
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Affiliation(s)
- Pham Vu Nhat
- Can
Tho University, 3-2 Road, Can Tho 900000, Vietnam
| | - Nguyen Vo Anh Duy
- FPT
University, Can Tho Campus, 600 Nguyen Van Cu Street, Ninh Kieu, Can Tho 900000, Vietnam
| | - Thi Nhan Tran
- Faculty
of Fundamental Sciences, Hanoi University
of Industry, 298 Cau Dien Road, Hanoi 100000, Vietnam
| | - Nguyen Thanh Si
- Institute
of Environmental Science and Technology, Tra Vinh University, Tra Vinh 94000, Vietnam
| | - Truc Anh Nguyen
- Faculty
of Mechanics, Can Tho University of Technology, 256 Nguyen Van Cu Street, Can Tho 900000, Vietnam
| | - Nguyen To Van
- Faculty of
Chemico-Physical Engineering, Le Quy Don
Technical University, Ha Noi 100000, Vietnam
| | - Nguyen Van Nghia
- Open
Training Institute, Hanoi Architectural
University, Km10, Nguyen Trai Street, Hanoi 100000, Vietnam
| | - Peter Schall
- Van
der Waals-Zeeman Institute, University of
Amsterdam, Science Park
904, Amsterdam 1098 XH, The Netherlands
| | - Van An Dinh
- Department
of Precision Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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3
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Wang H, Yang S, Chen L, Li Y, He P, Wang G, Dong H, Ma P, Ding G. Tumor diagnosis using carbon-based quantum dots: Detection based on the hallmarks of cancer. Bioact Mater 2024; 33:174-222. [PMID: 38034499 PMCID: PMC10684566 DOI: 10.1016/j.bioactmat.2023.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/15/2023] [Accepted: 10/05/2023] [Indexed: 12/02/2023] Open
Abstract
Carbon-based quantum dots (CQDs) have been shown to have promising application value in tumor diagnosis. Their use, however, is severely hindered by the complicated nature of the nanostructures in the CQDs. Furthermore, it seems impossible to formulate the mechanisms involved using the inadequate theoretical frameworks that are currently available for CQDs. In this review, we re-consider the structure-property relationships of CQDs and summarize the current state of development of CQDs-based tumor diagnosis based on biological theories that are fully developed. The advantages and deficiencies of recent research on CQDs-based tumor diagnosis are thus explained in terms of the manifestation of nine essential changes in cell physiology. This review makes significant progress in addressing related problems encountered with other nanomaterials.
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Affiliation(s)
- Hang Wang
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- CAS Center for Excellence in Superconducting Electronics (CENSE), Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Siwei Yang
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Liangfeng Chen
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Yongqiang Li
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Peng He
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Gang Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, PR China
| | - Hui Dong
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- CAS Center for Excellence in Superconducting Electronics (CENSE), Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
| | - Peixiang Ma
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Guqiao Ding
- National Key Laboratory of Materials for Integrated Circuit, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, PR China
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4
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Dutt Sharma V, Kansay V, Chandan G, Bhatia A, Kumar N, Chakrabarti S, Bera MK. Down-conversion luminescence nanocomposites based on nitrogen-doped carbon quantum dots@bioplastic for applications in optical displays, LEDs and UVC tubes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 312:124065. [PMID: 38402703 DOI: 10.1016/j.saa.2024.124065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 12/18/2023] [Accepted: 02/19/2024] [Indexed: 02/27/2024]
Abstract
Carbon quantum dots (CQDs)-based composites as luminous down-conversion materials are becoming more popular due to several advantages such as steady fluorescence, ease of functionalization, tailoring of emission in the visible range, and so on. We report an inexpensive and environmentally sustainable synthesis of fluorescent nitrogen doped-CQDs produced from Cissus quadrangularis, a low-cost plant precursor with therapeutic value. The morphological, structural, and physicochemical features of the material were carefully investigated. Under UV stimulation (365 nm), almost spherical shaped N-CQDs with an average diameter of 5.1 nm were discovered to generate yellow-green fluorescence, have excellent photostability, and strong water solubility, with a quantum yield of up to 5 %. Furthermore, as a solid-phase dispersion matrix for CQDs, ecologically friendly and biodegradable bioplastic is appealing. The down-conversion of solid-state fluorescence of LEDs and UVC tubes was demonstrated by creating a nanocomposite by inserting N-CQDs into the solid matrix of a wheat starch-based bioplastic. Furthermore, employing constructed quantum dot-based optical displays, down-converted LEDs, and UVC tubes, the impacts of varied CQD concentrations and pH sensitivity were examined.
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Affiliation(s)
- Varun Dutt Sharma
- Department of Physics, Maharishi Markandeshwar (Deemed to be University), Mullana Ambala (133207), Haryana, India
| | - Vishal Kansay
- Department of Physics, Maharishi Markandeshwar (Deemed to be University), Mullana Ambala (133207), Haryana, India
| | - G Chandan
- Department of Biochemistry, M M Institute of Medical Sciences and Research, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala (133207), Haryana, India
| | - Anita Bhatia
- Department of Chemistry, School of Physical Sciences, DIT University, Dehradun, Uttarakhand, India
| | - Nikhil Kumar
- Advanced Materials and Process Division, CSIR-National Metallurgical Laboratory, Jamshedpur 831007, Jharkhand, India
| | - S Chakrabarti
- Department of Biochemistry, M M Institute of Medical Sciences and Research, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala (133207), Haryana, India
| | - M K Bera
- Department of Physics, Maharishi Markandeshwar (Deemed to be University), Mullana Ambala (133207), Haryana, India.
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5
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Guo X, Yang R, Wang Y, Cheng C, Fu D, Sheng J. Molecularly designed and synthesized of bright blue nitrogen-doped lignin-derived carbon dots applied in printable anti-counterfeiting. Int J Biol Macromol 2023; 253:126723. [PMID: 37696377 DOI: 10.1016/j.ijbiomac.2023.126723] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/31/2023] [Accepted: 09/03/2023] [Indexed: 09/13/2023]
Abstract
With the increased demand for green and sustainable development, the research of advanced biomass-based carbon dots (CDs) has drawn growing attention. Herein, a one-step green solvent integration strategy-assisted solvothermal method to preparing CDs from hydrolyzed lignin and ethylenediamine (EDA) in formamide (FA) was developed. The Schiff reaction between FA and EDA contributes to the formation of -C-N groups, further inducing the high photoluminescence quantum yield (up to 42.69 %),obviously higher than NCDs prepared in H2O, EtOH and DMF systems (corresponding to H-NCDs, E-NCDs and D-NCDs, respectively). The analysis of structure, composition, photoluminescence (PL) behaviors and DFT calculations showed that F-NCDs have main blue fluorescent emission peak from 410 to 455 nm under 330-390 nm excitation due to the small sp2 structure in carbon core, and the large sp2 conjugated clusters and CO group related surface states leaded to the long wavelength emission. The F-NCDs with excellent optical properties was further used for preparing fluorescent film and invisible anti-counterfeiting ink, which exhibited outstanding fluorescence even at different temperatures and aging times. We provided a facile way for green facile preparation of lignin-based CDs and their sustainable anti-counterfeiting application.
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Affiliation(s)
- Xiaohui Guo
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Rendang Yang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yang Wang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China; School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Chen Cheng
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Danning Fu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jie Sheng
- School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
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6
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Bao H, Liu Y, Li H, Qi W, Sun K. Luminescence of carbon quantum dots and their application in biochemistry. Heliyon 2023; 9:e20317. [PMID: 37790961 PMCID: PMC10543222 DOI: 10.1016/j.heliyon.2023.e20317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/17/2023] [Accepted: 09/19/2023] [Indexed: 10/05/2023] Open
Abstract
Similar to fullerenes, carbon nanotubes and graphene, carbon dots (CDs) are causing a lot of research work in their own right. CDs are a type of surface-passivated quantum dot that contain carbon atoms. Their distinctive characteristics, such as luminescent emission that varies with size and wavelength, resistance to photobleaching, easy biological binding, lack of toxicity, and economical production without the need for intricate synthetic processes, have led to a noteworthy surge in attention within the research community. Different techniques can be utilized to create these CDs, spanning from basic candle burning to laser ablation. This review article delves into the principles of fluorescence technology, providing insights into how different synthesis methods of quantum dots impact their luminescent properties. Additionally, it highlights the latest applications of quantum dots in catalysis and biomedical fields, with special emphasis on the current status of luminescent properties in biology and chemistry. Towards the end, the article discusses the limitations of quantum dots in current practical applications, pointing out that CDs hold promising potential for future applications.
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Affiliation(s)
- Haili Bao
- Department of General Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
| | - Yihao Liu
- Department of General Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
| | - He Li
- Beijing University of Chemical Technology, Beijing, China
| | - Wenxin Qi
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Keyan Sun
- Department of General Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
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7
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Sun XH, Ma M, Tian R, Chai HM, Wang JW, Gao LJ. One-Pot Hydrothermal Method Preparation of Cerium-Nitrogen-Codoped Carbon Quantum Dots from Waste Longan Nucleus as a Fluorescent Sensor for Sensing Drug Rifampicin. ACS OMEGA 2023; 8:34859-34867. [PMID: 37780005 PMCID: PMC10536864 DOI: 10.1021/acsomega.3c04242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/25/2023] [Indexed: 10/03/2023]
Abstract
Currently, the large-scale application of carbon quantum dots (CQDs) is usually limited by their low quantum yield and detection limit. Herein, the abandoned longan nucleus was used as a carbon source to synthesize cerium-nitrogen-codoped carbon quantum dots (Ce/N-CQDs) with strong luminescence intensity. In this work, the fluorescent properties and fluorescent quantum yield of CQDs may be improved by the single cerium-doped carbon quantum dots (Ce-CQDs) and the single nitrogen-doped carbon quantum dots (N-CQDs). Nevertheless, the Ce/N-CQDs exhibited intense fluorescence with a high quantum yield. Compared with CQDs, the quantum yield of Ce/N-CQDs was significantly increased from 5 to 32% and showed high photostability and good water solubility. The Ce/N-CQDs can be used for the direct detection of rifampicin (RFP) in human serum. The concentration demonstrated a good linear relationship in the range of 1.0 × 10-7-9.0 × 10-6 mol/L, with a detection limit of 9.6 × 10-8 mol/L.
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Affiliation(s)
- Xue-Hua Sun
- Shaanxi Key Laboratory of
Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, P. R. China
| | - Min Ma
- Shaanxi Key Laboratory of
Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, P. R. China
| | - Rui Tian
- Shaanxi Key Laboratory of
Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, P. R. China
| | - Hong-Mei Chai
- Shaanxi Key Laboratory of
Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, P. R. China
| | - Jian-Wei Wang
- Shaanxi Key Laboratory of
Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, P. R. China
| | - Lou-Jun Gao
- Shaanxi Key Laboratory of
Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, P. R. China
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8
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Wang D, Chen Y, Xia T, Claudino M, Melendez A, Ni X, Dong C, Liu Z, Yang J. Citric Acid-Based Intrinsic Band-Shifting Photoluminescent Materials. RESEARCH (WASHINGTON, D.C.) 2023; 6:0152. [PMID: 37256199 PMCID: PMC10226408 DOI: 10.34133/research.0152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 04/27/2023] [Indexed: 06/01/2023]
Abstract
Citric acid, an important metabolite with abundant reactive groups, has been demonstrated as a promising starting material to synthesize diverse photoluminescent materials including small molecules, polymers, and carbon dots. The unique citrate chemistry enables the development of a series of citric acid-based molecules and nanomaterials with intriguing intrinsic band-shifting behavior, where the emission wavelength shifts as the excitation wavelength increases, ideal for chromatic imaging and many other applications. In this review, we discuss the concept of "intrinsic band-shifting photoluminescent materials", introduce the recent advances in citric acid-based intrinsic band-shifting materials, and discuss their potential applications such as chromatic imaging and multimodal sensing. It is our hope that the insightful and forward-thinking discussion in this review will spur the innovation and applications of the unique band-shifting photoluminescent materials.
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Affiliation(s)
- Dingbowen Wang
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences,
The Pennsylvania State University, University Park, PA 16802, USA
| | - Yizhu Chen
- Department of Electrical Engineering, Materials Research Institute,
The Pennsylvania State University, University Park, PA 16802, USA
| | - Tunan Xia
- Department of Electrical Engineering, Materials Research Institute,
The Pennsylvania State University, University Park, PA 16802, USA
| | - Mariana Claudino
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences,
The Pennsylvania State University, University Park, PA 16802, USA
| | - Allison Melendez
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences,
The Pennsylvania State University, University Park, PA 16802, USA
| | - Xingjie Ni
- Department of Electrical Engineering, Materials Research Institute,
The Pennsylvania State University, University Park, PA 16802, USA
| | - Cheng Dong
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences,
The Pennsylvania State University, University Park, PA 16802, USA
| | - Zhiwen Liu
- Department of Electrical Engineering, Materials Research Institute,
The Pennsylvania State University, University Park, PA 16802, USA
| | - Jian Yang
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences,
The Pennsylvania State University, University Park, PA 16802, USA
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9
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Yang S, Li Y, Chen L, Wang H, Shang L, He P, Dong H, Wang G, Ding G. Fabrication of Carbon-Based Quantum Dots via a "Bottom-Up" Approach: Topology, Chirality, and Free Radical Processes in "Building Blocks". SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2205957. [PMID: 36610043 DOI: 10.1002/smll.202205957] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/28/2022] [Indexed: 06/17/2023]
Abstract
The discovery of carbon-based quantum dots (CQDs) has allowed opportunities for fluorescence bioimaging, tumor diagnosis and treatment, and photo-/electro-catalysis. Nevertheless, in the existing reviews related to the "bottom-up" approaches, attention is mainly paid to the applications of CQDs but not the formation mechanism of CQDs, which mainly derived from the high complexities during the synthesis of CQDs. Among the various synthetic methods, using small molecules as "building blocks", the development of a "bottom-up" approach has promoted the structural design, modulation of the photoluminescence properties, and control of the interfacial properties of CQDs. On the other hand, many works have demonstrated the "building blocks"-dependent properties of CQDs. In this review, from one of the most important variables, the relationships among intrinsic properties of "building blocks" and photoluminescence properties of CQDs are summarized. The topology, chirality, and free radical process are selected as descriptors for the intrinsic properties of "building blocks". This review focuses on the induction and summary of recent research results from the "bottom-up" process. Moreover, several empirical rules pertaining thereto are also proposed.
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Affiliation(s)
- Siwei Yang
- Joint Laboratory of Graphene Materials and Applications, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yongqiang Li
- Joint Laboratory of Graphene Materials and Applications, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Liangfeng Chen
- Joint Laboratory of Graphene Materials and Applications, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hang Wang
- Joint Laboratory of Graphene Materials and Applications, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Liuyang Shang
- Joint Laboratory of Graphene Materials and Applications, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Peng He
- Joint Laboratory of Graphene Materials and Applications, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hui Dong
- Joint Laboratory of Graphene Materials and Applications, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Gang Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, P. R. China
| | - Guqiao Ding
- Joint Laboratory of Graphene Materials and Applications, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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10
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Zhang Y, Yuan J, Ding Y, Zhang B, Zhang S, Liu B. Metal-free N-GQDs/P-g-C3N4 photocatalyst with broad-spectrum response: Enhanced exciton dissociation and charge migration for promoting H2 evolution and tetracycline degradation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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11
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Fauzi NIM, Fen YW, Eddin FBK, Daniyal WMEMM. Structural and Optical Properties of Graphene Quantum Dots-Polyvinyl Alcohol Composite Thin Film and Its Potential in Plasmonic Sensing of Carbaryl. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4105. [PMID: 36432389 PMCID: PMC9698828 DOI: 10.3390/nano12224105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/13/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
In this study, graphene quantum dots (GQDs) and polyvinyl alcohol (PVA) composite was prepared and then coated on the surface of gold thin film via the spin coating technique. Subsequently, Fourier transform infrared spectroscopy (FT-IR), atomic force microscopy (AFM), and ultraviolet-visible spectroscopy (UV-Vis) were adopted to understand the structure, surface morphology, and optical properties of the prepared samples. The FT-IR spectral analysis revealed important bands, such as O-H stretching, C=O stretching, C-H stretching, and O=C=O stretching vibrations. The surface roughness of the GQDs-PVA composite thin film was found to be increased after exposure to carbaryl. On the other hand, the optical absorbance of the GQDs-PVA thin film was obtained and further analysis was conducted, revealing a band gap Eg value of 4.090 eV. The sensing potential of the thin film was analyzed using surface plasmon resonance (SPR) spectroscopy. The findings demonstrated that the developed sensor's lowest detection limit for carbaryl was 0.001 ppb, which was lower than that previously reported, i.e., 0.007 ppb. Moreover, other sensing performance parameters, such as full width at half maximum, detection accuracy, and signal-to-noise ratio, were also investigated to evaluate the sensor's efficiency.
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Affiliation(s)
- Nurul Illya Muhamad Fauzi
- Functional Nanotechnology Devices Laboratory, Institute of Nanoscience and Nanotechnology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Yap Wing Fen
- Functional Nanotechnology Devices Laboratory, Institute of Nanoscience and Nanotechnology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Faten Bashar Kamal Eddin
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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12
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Gaurav A, Jain A, Tripathi SK. Review on Fluorescent Carbon/Graphene Quantum Dots: Promising Material for Energy Storage and Next-Generation Light-Emitting Diodes. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7888. [PMID: 36431372 PMCID: PMC9695987 DOI: 10.3390/ma15227888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 10/31/2022] [Accepted: 11/04/2022] [Indexed: 05/10/2023]
Abstract
Carbon/graphene quantum dots are 0D fluorescent carbon materials with sizes ranging from 2 nm to around 50 nm, with some attractive properties and diverse applications. Different synthesis routes, bandgap variation, higher stability, low toxicity with tunable emission, and the variation of physical and chemical properties with change in size have drawn immense attention to its potential application in different optoelectronics-based materials, especially advanced light-emitting diodes and energy storage devices. WLEDs are a strong candidate for the future of solid-state lighting due to their higher luminance and luminous efficiency. High-performance batteries play an important part in terms of energy saving and storage. In this review article, the authors provide a comparative analysis of recent and ongoing advances in synthesis (top-down and bottom-up), properties, and wide applications in different kinds of next-generation light-emitting diodes such as WLEDs, and energy storage devices such as batteries (Li-B, Na-B) and supercapacitors. Furthermore, they discuss the potential applications and progress of carbon dots in battery applications such as electrode materials. The authors also summarise the developmental stages and challenges in the existing field, the state-of-the-art of carbon/graphene quantum dots, and the potential and possible solutions for the same.
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Affiliation(s)
- Ashish Gaurav
- Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan
| | - Amrita Jain
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5B, 02-106 Warsaw, Poland
| | - Santosh Kumar Tripathi
- Department of Physics, School of Physical Sciences, Mahatma Gandhi Central University, Motihari 845401, Bihar, India
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13
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Dang MT, Duy NVA, Zaccone A, Schall P, Dinh VA. Structural modification enhances the optoelectronic properties of defect blue phosphorene thin films. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:285702. [PMID: 35443237 DOI: 10.1088/1361-648x/ac68be] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
Active enhancement of the optical absorption coefficient to improve the light converting efficiency of thin-film solar cell materials is crucial to develop the next-generation solar cell devices. Here we report first-principles calculations with generalized gradient approximation to study the optoelectronic properties of pristine and divacancy (DV) blue phosphorene (BlueP) thin films under structural deformation. We show that instead of formingsp-like covalent bonds as in the pristine BlueP layer, a DV introduces two particular dangling bonds between the voids. Using a microscopic (non-) affine deformation model, we reveal that the orbital hybridization of these dangling bonds is strongly modified in both the velocity and vorticity directions depending on the type of deformation, creating an effective light trap to enhance the material absorption efficiency. Furthermore, this successful light trap is complemented by a clear signature ofσ+πplasmon when a DV BlueP layer is slightly compressive. These results demonstrate a practical approach to tailor the optoelectronic properties of low-dimensional materials and to pave a novel strategy to design functionalized solar cell devices from the bottom-up with selective defects.
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Affiliation(s)
- M T Dang
- School of Education, Can Tho University, 3/2 Street, Ninh Kieu, Can Tho, Vietnam
| | - N V A Duy
- FPT University, Can Tho Campus, 600 Nguyen Van Cu Street, Ninh Kieu, Can Tho, Vietnam
| | - A Zaccone
- Department of Physics 'A Pontremoli', University of Milan, via Celoria 16, 20133 Milan, Italy
| | - P Schall
- Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, Amsterdam, The Netherlands
| | - V A Dinh
- Department of Precision Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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14
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Ding S, Tan P, Wen J, Li T, Wang W. Quantification of 2-chlorohydroquinone based on interaction between N-doped carbon quantum dots probe and photolysis products in fluorescence system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 814:152745. [PMID: 34979230 DOI: 10.1016/j.scitotenv.2021.152745] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/13/2021] [Accepted: 12/24/2021] [Indexed: 06/14/2023]
Abstract
As a member of chlorophenolic compounds, 2-chlorohydroquinone (H2QCl) has been widely used as intermediates in various chemical industries and leaded to serious threat on the environment. It is urgent to develop simple and robust analytical method for sensitive and selective determination of H2QCl. Carbon quantum dots (CQDs), a promising photoluminescence nanomaterial, have gained sufficient concern as optical sensors owing to their outstanding photochemical properties. In this work, nitrogen doped carbon quantum dots (N-CQDs) were successfully synthesized by a simple secondary hydrothermal method and applied as a fluorescent probe for the quantitation of H2QCl. A new fluorescence region centered at excitation wavelength of 310 nm and emission wavelength of 390 nm appeared after nitrogen doping. It was found that the N-CQDs exhibited a high selectivity towards H2QCl with sensitive fluorescence response and the fluorescence quenching of N-CQDs was linear with the concentration of H2QCl in the range of 30-90 μM (Y = 0.0049X + 0.1255, R2 = 0.996). This is the first time that the dual role of excitation light was observed in the fluorescence detection system. The ultraviolet light acted as not only the excitation energy source for N-CQDs photoluminescence, but also the light source for photolysis of H2QCl. In the detection process, H2QCl was degraded to p-benzoquinone by light, and then the CQDs combined with p-benzoquinone through Michael addition reaction under the action of doped nitrogen. The electron transfer from N-CQDs to the linked p-benzoquinone caused the quenching of fluorescence originated from the edge state of N-CQDs. Furthermore, this established method can be applied for the quantitative determination of H2QCl in environmental water samples with satisfactory recoveries between 94.31 and 105.51%.
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Affiliation(s)
- Shihu Ding
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Peng Tan
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Jiaxin Wen
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Tielong Li
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Wei Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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15
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Deng Y, Yan W, Guo Y, Wang Q, Bi Y, Dong C, Fan L. Highly sensitive and selective photoelectrochemical aptasensing of di-2-ethylhexyl phthalate based on graphene quantum dots decorated TiO 2 nanotube arrays. JOURNAL OF HAZARDOUS MATERIALS 2022; 426:128107. [PMID: 34971987 DOI: 10.1016/j.jhazmat.2021.128107] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/29/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
A photoelectrochemical (PEC) sensing platform for di-2-ethylhexyl phthalate (DEHP) was constructed using graphene quantum dots decorated TiO2 nanotube arrays (GQDs-decorated TiO2 NTs) as the transducer species and the anti-DEHP aptamer as the biological recognition element. GQDs were synthesized using the alkali-mediated hydrothermal method, and then anchored onto the TiO2 NTs uniformly and intimately via pronounced electrostatic interaction. Coupling GQDs with TiO2 NTs not only enhanced visible-light absorption, but promoted charge separation and transportation, exhibiting excellent photocurrent response, and PEC activity. Various means were conducted to explore morphologies, optical, structural and PEC properties of the materials. As an identification unit, the anti-DEHP aptamer molecules were immobilized on GQDs-decorated TiO2 NTs using a cross-linking coupling method. The developed PEC sensing platform exhibits excellent sensing behavior for DEHP, and provides a low detection limit of 0.1 ng/L, high selectivity and stability. Meanwhile, its application in real environmental samples was evaluated and satisfying results were achieved. Thus, the established sensing platform provides a promising tool to detect DEHP in the environment.
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Affiliation(s)
- Yuan Deng
- Institute of Environmental Science, College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, Shanxi 030006, PR China
| | - Wenjun Yan
- Analytical Instrumentation Center and State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, CAS, Taiyuan 030001, PR China
| | - Yujing Guo
- Institute of Environmental Science, College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, Shanxi 030006, PR China
| | - Qiang Wang
- Analytical Instrumentation Center and State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, CAS, Taiyuan 030001, PR China
| | - Yingpu Bi
- State Key Laboratory for Oxo Synthesis & Selective Oxidation, Lanzhou Institute of Chemical Physics, CAS, Lanzhou 730000, PR China
| | - Chuan Dong
- Institute of Environmental Science, College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, Shanxi 030006, PR China.
| | - Lifang Fan
- Institute of Environmental Science, College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, Shanxi 030006, PR China.
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16
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N-doped graphene quantum dots from graphene oxide and dendrimer and application in photothermal therapy: An experimental and theoretical study. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128066] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Mishra K, Acharjee D, Das A, Ghosh S. Subpicosecond Hot Hole Transfer in a Graphene Quantum Dot Composite with High Efficiency. J Phys Chem Lett 2022; 13:606-613. [PMID: 35019662 DOI: 10.1021/acs.jpclett.1c03530] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Extraction of hot carriers is of prime importance because of its potential to overcome the energy loss that limits the efficiency of an optoelectronic device. Employing a femtosecond upconversion setup, herein we report a few picoseconds carrier cooling time of colloidal graphene quantum dots (GQDs) is at least an order of magnitude slower compared to that in its bulk form. A slower carrier cooling time of GQDs compared to that of the other semiconductor quantum dots and their bulk materials is indeed a coveted property of GQDs that would allow one easy harvesting of high energy species employing a suitable molecular system as shown in this study. A subpicosecond hot hole transfer time scale has been achieved in a GQD-molecular system composite with high transfer efficiency. Our finding suggests a dramatic enhancement of the efficiency of GQD based optoelectronic devices can possibly be a reality.
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Affiliation(s)
- Krishna Mishra
- School of Chemical Sciences, National Institute of Science Education and Research, Homi Bhabha National Institute (HBNI), Khurda 752050, Odisha, India
| | - Debopam Acharjee
- School of Chemical Sciences, National Institute of Science Education and Research, Homi Bhabha National Institute (HBNI), Khurda 752050, Odisha, India
| | - Ayendrila Das
- School of Chemical Sciences, National Institute of Science Education and Research, Homi Bhabha National Institute (HBNI), Khurda 752050, Odisha, India
| | - Subhadip Ghosh
- School of Chemical Sciences, National Institute of Science Education and Research, Homi Bhabha National Institute (HBNI), Khurda 752050, Odisha, India
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18
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Kurniawan D, Anjali BA, Setiawan O, Ostrikov KK, Chung YG, Chiang WH. Microplasma Band Structure Engineering in Graphene Quantum Dots for Sensitive and Wide-Range pH Sensing. ACS APPLIED MATERIALS & INTERFACES 2022; 14:1670-1683. [PMID: 34843204 DOI: 10.1021/acsami.1c18440] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
pH sensing using active nanomaterials is promising in many fields ranging from chemical reactions to biochemistry, biomedicine, and environmental safety especially in the nanoscale. However, it is still challenging to achieve nanotechnology-enhanced rapid, sensitive, and quantitative pH detection with stable, biocompatible, and cost-effective materials. Here, we report a rational design of nitrogen-doped graphene quantum dot (NGQD)-based pH sensors by boosting the NGQD pH sensing properties via microplasma-enabled band-structure engineering. Effectively and economically, the emission-tunable NGQDs can be synthesized from earth-abundant chitosan biomass precursor by controlling the microplasma chemistry under ambient conditions. Advanced spectroscopy measurements and density functional theory (DFT) calculations reveal that functionality-tuned NGQDs with enriched -OH functional groups and stable and large Stokes shift along the variations of pH value can achieve rapid, label-free, and ionic-stable pH sensing with a wide sensing range from pH 1.8 to 13.6. The underlying mechanism of pH sensing is related to the protonation/deprotonation of -OH group of NGQDs, leading to the maximum pH-dependent luminescence peak shift along with the bandgap broadening or narrowing. In just 1 h, a single microplasma jet can produce a stable colloidal NGQD dispersion with 10 mg/mL concentration lasting for at least 100 pH detections, and the process is scalable. This approach is generic and opens new avenues for nanographene-based materials synthesis for applications in sensing, nanocatalysis, energy generation and conversion, quantum optoelectronics, bioimaging, and drug delivery.
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Affiliation(s)
- Darwin Kurniawan
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Bai Amutha Anjali
- School of Chemical Engineering, Pusan National University, 46241 Busan, Korea (South)
| | - Owen Setiawan
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Kostya Ken Ostrikov
- School of Chemistry and Physics and QUT Centre for Materials Science, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
| | - Yongchul G Chung
- School of Chemical Engineering, Pusan National University, 46241 Busan, Korea (South)
| | - Wei-Hung Chiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
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19
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Zhu X, Zhang Z, Wang X, Chen P, Chen Y, Fan K, Luo P, Yang R, Peng J. Internal dual-emissive carbon dots for double signal detection of procainamide. NEW J CHEM 2022. [DOI: 10.1039/d2nj02090d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We fabricated an internal dual-emission carbon dots using a facile hydrothermal treatment of eosin Y and ethylenediamine (EDA). The Y-CDs exhibit distinct double peaks at 384 and 520 nm on...
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20
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Thioacetamide-derived nitrogen and sulfur co-doped carbon quantum dots for “green” quantum dot solar cells. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.09.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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21
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Wu Z, Li X, Zhao Y, Li Y, Wei K, Shi H, Zhang T, Huang H, Liu Y, Kang Z. Organic Semiconductor/Carbon Dot Composites for Highly Efficient Hydrogen and Hydrogen Peroxide Coproduction from Water Photosplitting. ACS APPLIED MATERIALS & INTERFACES 2021; 13:60561-60570. [PMID: 34878264 DOI: 10.1021/acsami.1c14735] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Coproduction of hydrogen (H2) and hydrogen peroxide (H2O2) from water splitting is one of the most promising ways to alleviate the energy crisis and environmental pollution. Here, we first show the synthesis and photocatalytic property of an organic semiconductor (DAnTMS compound) from 9,10-dibromoanthracene and trimethylsilylacetylene. Then, a metal-free photocatalyst of a DAnTMS/carbon dot (DAnTMS/CD) composite was designed and fabricated, which achieved the efficient photocatalytic production of H2 and H2O2 without usage of any organic solvents and sacrificial agents. Under visible light, the DAnTMS/CD composite could produce H2O2 with a maximum rate of 396.7 μmol g-1 h-1 and H2 with a maximum rate of 265.0 μmol g-1 h-1 in pure water. Transient photovoltage tests showed that CDs changed the interfacial electron transfer kinetics and served as the active site for highly efficient H2 evolution. This work provided a deep insight into the function of CDs in regulating the catalytic property of organic photocatalysts.
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Affiliation(s)
- Zhenyu Wu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Xinke Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Yu Zhao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Yi Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Kaiqiang Wei
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Hong Shi
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Tianyang Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Hui Huang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Yang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Zhenhui Kang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
- Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa, Macau SAR 999078, China
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22
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Synthesis of photoluminescent m-phenylenediamine-Rhodamine B copolymer dots: selective ultrahigh photocatalytic performance for catalytic reduction of nitro-compound. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04512-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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23
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Kurniawan D, Jhang RC, Ostrikov KK, Chiang WH. Microplasma-Tunable Graphene Quantum Dots for Ultrasensitive and Selective Detection of Cancer and Neurotransmitter Biomarkers. ACS APPLIED MATERIALS & INTERFACES 2021; 13:34572-34583. [PMID: 34255481 DOI: 10.1021/acsami.1c10566] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The effective and precise detection of cancer and neurotransmitter biomarkers including folic acid (FA), dopamine (DA), and epinephrine (EP) are essential for early detection and diagnosis of cancer and neurological disorders and for the development of new drugs. However, it remains challenging to detect FA, DA, and EP with high selectivity and sensitivity with a single material. Herein, we report a photoluminescence (PL)-based selective sensing of FA, DA, and EP with nitrogen-doped graphene quantum dots (NGQDs) synthesized from biocompatible chitosan under ambient conditions using atmospheric pressure microplasmas. By regulating the pH, the selective detection is achieved in broad ranges from 0.8 to 80 μM for FA and 0.4 to 100 μM for both DA and EP with the very low limits of detections of 81.7, 57.8, and 16.7 nM for FA, DA, and EP, respectively. The developed PL sensing method shows the high throughput of 5000 detections per hour. Moreover, highly stable colloidal NGQD dispersion with 100 μg/mL concentration for at least 100 PL detections is produced in 1 h by a single microplasma, and the process is scalable. The mechanisms of the outstanding performance are related to the enhanced, size-dependent π-π stacking attraction between the NGQDs and the pH-regulated chemical states of the analytes and the associated pH-specific photo-induced electron transfer and PL.
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Affiliation(s)
- Darwin Kurniawan
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Rong-Chen Jhang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Kostya Ken Ostrikov
- School of Chemistry and Physics and QUT Centre for Materials Science, Queensland University of Technology (QUT), Brisbane, Queensland 4000, Australia
| | - Wei-Hung Chiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
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Abstract
Near ultraviolet (NUV) light-emitting materials and devices are significant due to unique applications in anti-counterfeit, manufacturing industries, and hygienic treatments. However, the development of high-efficiency NUV electroluminescent devices encounters great challenges and is far behind their RGB emitter counterparts. Besides the photoluminescence quantum yields (PLQYs) of NUV materials being higher than 40%, charge injection and lopsided carrier transport also determine the device performance, leading to great efforts in optimizing the frontier molecular orbitals to fit the adjacent function layer. In the exploration of NUV materials, organic molecules are one of the primary candidates, given their preparative facility and structural variability. Recently, all-inorganic quantum-dot light-emitting diodes (QLEDs) of Cd-based, ZnSe, graphene and inorganic perovskite emitters and organic-inorganic hybrid lead halide perovskite nanocrystals (NCs) were demonstrated for achieving NUV electroluminescence. Owing to the great efforts devoted to NUV material engineering and device configuration, NUV materials and devices have achieved great advances over the last two decades. In this review, we retrospect the development of NUV materials and devices covering all promising systems, which may inspire the enthusiasm of researchers to explore the huge potential in the NUV region.
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Affiliation(s)
- Shuo Chen
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials, Heilongjiang University, 74 Xuefu Road, Harbin 150080, P. R. China.
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26
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Zhang Y, Qin H, Huang Y, Zhang F, Liu H, Liu H, Wang ZJ, Li R. Highly fluorescent nitrogen and boron doped carbon quantum dots for selective and sensitive detection of Fe 3. J Mater Chem B 2021; 9:4654-4662. [PMID: 34018537 DOI: 10.1039/d1tb00371b] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to the essential role of Fe3+ in physiological and pathological processes, the detection of Fe3+ has drawn increasing attention in the field of disease diagnosis and environmental protection. However, most existing methods require either cumbersome sample pretreatment or sophisticated and expensive test equipment. Recently, carbon quantum dots have found a wide range of applications such as nanoprobes for Fe3+ determination, albeit with limited sensitivity and selectivity. Herein, we report core-shell carbon quantum dots B1N2CQDs via a two-step hydrothermal approach using citric acid, boric acid and ethylenediamine as precursors. The obtained B1N2CQDs exhibit excellent water solubility and remarkable stability as well as a high fluorescence quantum yield of 15.4%. In addition, the fluorescence of B1N2CQDs is quenched exclusively by Fe3+ with minimal interference from other metal ions. A linear relationship with R2 = 0.998 was observed between the fluorescence quenching capacity and the Fe3+ concentration in the range of 2-160 μM, with the limit of detection calculated to be 80 nM. Finally, the as-prepared B1N2CQDs were successfully applied as a highly efficient fluorescent probe for Fe3+ detection in river water samples and intracellular Fe3+ imaging in biological systems.
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Affiliation(s)
- Yunhao Zhang
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China.
| | - Hongxin Qin
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China.
| | - Yuting Huang
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China.
| | - Feng Zhang
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China.
| | - Hairong Liu
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China.
| | - Hongbo Liu
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China. and Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Hunan, Changsha 410082, China
| | - Zi Jun Wang
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Run Li
- College of Material Science and Engineering, Hunan University, Hunan, Changsha 410082, China. and Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Hunan, Changsha 410082, China
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27
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Shen TY, Jia PY, Chen DS, Wang LN. Hydrothermal synthesis of N-doped carbon quantum dots and their application in ion-detection and cell-imaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 248:119282. [PMID: 33316652 DOI: 10.1016/j.saa.2020.119282] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/15/2020] [Accepted: 11/22/2020] [Indexed: 05/25/2023]
Abstract
Carbon quantum dots (CQDs), owing to their characteristic luminescent properties, have become a new favorite in the field of luminescence. They have been widely used in light emitting diode, ion detection, cell-imaging, ect. Herein a facile synthesis method of nitrogen-doped carbon quantum dots (N-CQDs) has been developedviaa one-step hydrothermal of glucose and m-phenylenediamine. The chemical composition, surface functional groups, and crystal structure of so prepared N-CQDs were systematically characterized. The characterizations indicate that nitrogen has been chemically doped in the CQDs and the N-CQDs crystallize in a graphene structure. Photoluminescence (PL) measurements show that the N-CQDs emit strong blue emission under the irradiation of ultraviolet. The emission is excitation-dependent, is resistant to photo bleaching and high ionic strength, and slightly decreases with the increase of temperature. The quantum yield of them is about 17.5%. The PL intensity of N-CQDs quenches linearly with the increase of the concentrations of Fe3+(0.5-1.0 mM) and CrO42-(0.3-0.6 mM), which are a kind of excellent fluorescent probe for the detection of Fe3+ and CrO42-. The quenching mechanism of Fe3+ and CrO42-is verified to be a static quenching mechanism based on inner filter effect. The N-CQDs are also found to be a good cell-imaging reagent of Hela cells.
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Affiliation(s)
- Tong-Yang Shen
- School of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26, Hexing Road, Harbin 150040, PR China
| | - Pei-Yun Jia
- School of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26, Hexing Road, Harbin 150040, PR China.
| | - Da-Shu Chen
- School of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26, Hexing Road, Harbin 150040, PR China
| | - Li-Na Wang
- School of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26, Hexing Road, Harbin 150040, PR China
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Nitrogen and sulfur co-doped graphene quantum dots/nanocellulose nanohybrid for electrochemical sensing of anti-schizophrenic drug olanzapine in pharmaceuticals and human biological fluids. Int J Biol Macromol 2020; 165:2030-2037. [DOI: 10.1016/j.ijbiomac.2020.10.084] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/28/2020] [Accepted: 10/12/2020] [Indexed: 01/24/2023]
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Xu A, Wang G, Li Y, Dong H, Yang S, He P, Ding G. Carbon-Based Quantum Dots with Solid-State Photoluminescent: Mechanism, Implementation, and Application. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2004621. [PMID: 33145929 DOI: 10.1002/smll.202004621] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/18/2020] [Indexed: 05/24/2023]
Abstract
Carbon-based quantum dots (CQDs), including spherical carbon dots and graphene quantum dots, are an emerging class of photoluminescent (PL) materials with unique properties. Great progress has been made in the design and fabrication of high-performance CQDs, however, the challenge of developing solid-state PL CQDs have aroused great interest among researchers. A clear PL mechanism is the basis for the development of high-performance solid-state CQDs for light emission and is also a prerequisite for the realization of multiple practical applications. However, the extremely complex structure of a CQD greatly limits the understanding of the solid-state PL mechanism of CQDs. So far, a variety of models have been proposed to explain the PL of solid-state CQDs, but they have not been unified. This review summarizes the current understanding of the solid-state PL of solid-state CQDs from the perspective of energy band theory and electronic transitions. In addition, the common strategies for realizing solid-state PL in CQDs are also summarized. Furthermore, the applications of CQDs in the fields of light-emitting devices, anti-counterfeiting, fingerprint detection, etc., are proposed. Finally, a brief outlook is given, highlighting current problems, and directions for development of solid-state PL of CQDs.
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Affiliation(s)
- Anli Xu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS Center for Excellence in Superconducting Electronics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Gang Wang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS Center for Excellence in Superconducting Electronics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, P. R. China
| | - Yongqiang Li
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS Center for Excellence in Superconducting Electronics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hui Dong
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS Center for Excellence in Superconducting Electronics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Siwei Yang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS Center for Excellence in Superconducting Electronics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Peng He
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS Center for Excellence in Superconducting Electronics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Guqiao Ding
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS Center for Excellence in Superconducting Electronics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Zeng M, Kuang W, Khan I, Huang D, Du Y, Saeidi-Javash M, Zhang L, Cheng Z, Hoffman AJ, Zhang Y. Colloidal Nanosurfactants for 3D Conformal Printing of 2D van der Waals Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2003081. [PMID: 32851710 DOI: 10.1002/adma.202003081] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/20/2020] [Indexed: 05/26/2023]
Abstract
Printing techniques using nanomaterials have emerged as a versatile tool for fast prototyping and potentially large-scale manufacturing of functional devices. Surfactants play a significant role in many printing processes due to their ability to reduce interfacial tension between ink solvents and nanoparticles and thus improve ink colloidal stability. Here, a colloidal graphene quantum dot (GQD)-based nanosurfactant is reported to stabilize various types of 2D materials in aqueous inks. In particular, a graphene ink with superior colloidal stability is demonstrated by GQD nanosurfactants via the π-π stacking interaction, leading to the printing of multiple high-resolution patterns on various substrates using a single printing pass. It is found that nanosurfactants can significantly improve the mechanical stability of the printed graphene films compared with those of conventional molecular surfactant, as evidenced by 100 taping, 100 scratching, and 1000 bending cycles. Additionally, the printed composite film exhibits improved photoconductance using UV light with 400 nm wavelength, arising from excitation across the nanosurfactant bandgap. Taking advantage of the 3D conformal aerosol jet printing technique, a series of UV sensors of heterogeneous structures are directly printed on 2D flat and 3D spherical substrates, demonstrating the potential of manufacturing geometrically versatile devices based on nanosurfactant inks.
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Affiliation(s)
- Minxiang Zeng
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Wenzheng Kuang
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Irfan Khan
- Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Dali Huang
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Yipu Du
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Mortaza Saeidi-Javash
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Lecheng Zhang
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Zhengdong Cheng
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX, 77843, USA
- Chemical Engineering Department, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - Anthony J Hoffman
- Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Yanliang Zhang
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
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31
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Youh MJ, Jiang MY, Chung MC, Tai HC, Li YY. Formation of graphene quantum dots by ball-milling technique using carbon nanocapsules and sodium carbonate. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sekiya R, Haino T. Chemically Functionalized Two-Dimensional Carbon Materials. Chem Asian J 2020; 15:2316-2328. [PMID: 32128984 DOI: 10.1002/asia.202000196] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Indexed: 12/13/2022]
Abstract
Nanographenes (NGs), also known as graphene quantum dots, have recently been developed as nanoscale graphene fragments. These nanocarbon species can be excited with UV light and emit light from the UV-to-visible region. This photoemission has received great attraction across multiple scientific fields. NGs can be produced by cutting off carbon sources or fusing small organic molecules to grow graphitic structures. Furthermore, the organic synthesis of NGs has been intensely studied. Recently, the number of research papers on postsynthetic modification of NGs has gradually increased. Installed organic groups can tune the properties of NGs and provide new functionalities, opening the door for the development of sophisticated carbon-based functional materials. This review sheds light on recent progress in the postsynthetic modification of NGs and provides a brief summary of their production methods.
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Affiliation(s)
- Ryo Sekiya
- Department of Chemistry Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8526, Japan
| | - Takeharu Haino
- Department of Chemistry Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8526, Japan
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Gu B, Chen D, Gao B, Liu Z, Wang Z, Wang T, Yang Y, Guo Q, Wang G. Ultrasensitive Fluorescent Detection of Tetracycline Based on Selective Supramolecular Interaction of Nitrogen Chlorine Co–Doped Graphene Quantum Dots. ChemistrySelect 2020. [DOI: 10.1002/slct.202000816] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Bingli Gu
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
| | - Da Chen
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
- Division of Physics and Applied PhysicsSchool of Physical and Mathematical Sciences, Nanyang Technological University Singapore 637371
| | - Bo Gao
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
| | - Zhiduo Liu
- State Key Laboratory of Integrated OptoelectronicsInstitute of Semiconductors, Chinese Academy of Sciences Beijing 100083 P. R. China
| | - Zihao Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
| | - Ting Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
| | - Yongsheng Yang
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
| | - Qinglei Guo
- Center of Nanoelectronics and School of MicroelectronicsShandong University Jinan 250100 P. R. China
| | - Gang Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and TechnologyNingbo University Ningbo 315211 P. R. China
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Kalkal A, Pradhan R, Kadian S, Manik G, Packirisamy G. Biofunctionalized Graphene Quantum Dots Based Fluorescent Biosensor toward Efficient Detection of Small Cell Lung Cancer. ACS APPLIED BIO MATERIALS 2020; 3:4922-4932. [DOI: 10.1021/acsabm.0c00427] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ashish Kalkal
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Rangadhar Pradhan
- Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Sachin Kadian
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttrakhand 247667, India
| | - Gaurav Manik
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttrakhand 247667, India
| | - Gopinath Packirisamy
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
- Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
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35
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Younis MR, He G, Lin J, Huang P. Recent Advances on Graphene Quantum Dots for Bioimaging Applications. Front Chem 2020; 8:424. [PMID: 32582629 PMCID: PMC7283876 DOI: 10.3389/fchem.2020.00424] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 04/23/2020] [Indexed: 11/21/2022] Open
Abstract
Being a zero-dimensional (0D) nanomaterial of the carbon family, graphene quantum dots (GQDs) showed promising biomedical applications owing to their ultra-small size, non-toxicity, biocompatibility, excellent photo stability, tunable fluorescence, and water solubility, etc., thus capturing a considerable attention in biomedical field. This review summarizes the recent advances made in the research field of GQDs and place special emphasis on their bioimaging applications. We briefly introduce the synthesis strategies of GQDs, including top-down and bottom-up strategies. The bioimaging applications of GQDs are also discussed in detail, including optical [fluorescence (FL)], two-photon FL, magnetic resonance imaging (MRI), and dual-modal imaging. In the end, the challenges and future prospects to advance the clinical bioimaging applications of GQDs have also been addressed.
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Affiliation(s)
| | | | - Jing Lin
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, Laboratory of Evolutionary Theranostics (LET), School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China
| | - Peng Huang
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, Laboratory of Evolutionary Theranostics (LET), School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China
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36
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Enhancing the magnetic relaxivity of MRI contrast agents via the localized superacid microenvironment of graphene quantum dots. Biomaterials 2020; 250:120056. [PMID: 32339859 DOI: 10.1016/j.biomaterials.2020.120056] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 03/21/2020] [Accepted: 04/14/2020] [Indexed: 12/18/2022]
Abstract
The design of contrast agents (CAs) with high magnetic relaxivities is a key issue in the field of magnetic resonance imaging (MRI). The traditional strategy employed is aimed at optimizing the structural design of the magnetic atoms in the CA. However, it is difficult to obtain an agent with magnetic relaxivity over 100 mM-1 s-1 using this approach. In this work, we demonstrate that modulation of the localized superacid microenvironment of certain CAs (Gd3+ loaded polyethylene glycol modified graphene oxide quantum dots or 'GPG' for short) can effectively enhance the longitudinal magnetic relaxivities (r1) by accelerating proton exchange. r1 values of a series of GPGs are significantly increased by 20-30 folds compared to commercially available CAs over a wide range of static magnetic field strengths (e.g. 210.9 mM-1 s-1vs. 12.3 mM-1 s-1 at 114 μT, 127.0 mM-1 s-1vs. 4.9 mM-1 s-1 at 7.0 T). GPG aided MRI images is then acquired both in vitro and in vivo with low biotoxicities. Furthermore, folic-acid-modified GPG is demonstrated suitable for MRI-fluorescence dual-modal tumor targeting imaging in animals with more than 98.3% specific cellular uptake rate.
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37
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Pramanik A, Biswas S, Tiwary CS, Kumbhakar P, Sarkar R, Kumbhakar P. Forster resonance energy transfer assisted white light generation and luminescence tuning in a colloidal graphene quantum dot-dye system. J Colloid Interface Sci 2020; 565:326-336. [DOI: 10.1016/j.jcis.2020.01.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/28/2019] [Accepted: 01/08/2020] [Indexed: 01/04/2023]
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Wang Z, Chen D, Gu B, Gao B, Wang T, Guo Q, Wang G. Biomass-derived nitrogen doped graphene quantum dots with color-tunable emission for sensing, fluorescence ink and multicolor cell imaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 227:117671. [PMID: 31670043 DOI: 10.1016/j.saa.2019.117671] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
In this paper, a simple, economical, and green strategy is developed for producing nitrogen doped graphene quantum dots (N-GQDs) with multicolor light emission by hydrothermal treatment of Passiflora edulia Sims. The synthesized N-GQDs exhibit ideal ionic stability, hydrophilicity and anti-photobcleaching properties, and the quantum yield reaches up to about 29%. Because of with the fluorescence quenching effect, the achieved N-GQDs allow to detect Ag+ in a linear range of 10 nM-160 μM, and the limit of detection is calculated to be 1.2 nM according to the S/N of 3. Noteworthy, N-GQDs with blue, green and yellow light emissions are demonstrated via regulating the reaction time and temperature, implying a promising fluorescence adjustability. Furthermore, the N-GQDs-based fluorescent probe exhibits low cytotoxicity and favorable biocompatibility. Depending on the superior properties, our N-GQDs are applied in fluorescent ink and multicolor cell imaging. Eventually, the developed sensor is highly selective and accurate for Ag+ analysis in real water, which demonstrates the promising practical use in environmental determination and/or biomedical engineering.
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Affiliation(s)
- Zihao Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, PR China
| | - Da Chen
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, PR China.
| | - Bingli Gu
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, PR China
| | - Bo Gao
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, PR China
| | - Ting Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, PR China
| | - Qinglei Guo
- Center of Nanoelectronics and School of Microelectronics, Shandong University, Jinan, 250100, PR China
| | - Gang Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo, 315211, PR China.
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Jovanović SP, Syrgiannis Z, Budimir MD, Milivojević DD, Jovanovic DJ, Pavlović VB, Papan JM, Bartenwerfer M, Mojsin MM, Stevanović MJ, Todorović Marković BM. Graphene quantum dots as singlet oxygen producer or radical quencher - The matter of functionalization with urea/thiourea. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 109:110539. [PMID: 32229000 DOI: 10.1016/j.msec.2019.110539] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 09/14/2019] [Accepted: 12/10/2019] [Indexed: 01/04/2023]
Abstract
Due to their low cost and possible green synthesis, high stability and resistance to photobleaching, graphene quantum dots (GQDs) can be considered as one of the class of carbon nanomaterials which may have great potential as an agent for photosensitized oxygen activation. In such a way, GQDs can be used as a theranostic agent in photodynamic therapy. In this work pristine GQDs, GQDs irradiated with gamma rays and GQDs doped with N and N, S atoms are produced using a simple, green approach. By using different techniques (AFM, HR-TEM, SEM-EDS, FTIR, XRD, PL and UV-Vis) we investigated structural and optical properties of the new types of GQDs. We showed that GQDs functionalized with thiourea (GQDs-TU) completely lost the ability to produce singlet oxygen (1O2) upon photoexcitation while functionalization with urea (GQDs-U) improves the capability of GQDs to produce 1O2 upon the same conditions. Thus, presented GQDs modification with urea seems like a promising approach for the production of the efficient photosensitizer. On the opposite, GQDs-TU are efficient OH quencher. Due to high singlet oxygen production and low cytotoxicity below 100 μg/mL against HeLa cells, GQDs-U is a good candidate as an agent in photodynamic therapy at this concentration.
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Affiliation(s)
- Svetlana P Jovanović
- Vinča Institute of Nuclear Sciences, University of Belgrade, P. O. Box 522, 11001 Belgrade, Serbia.
| | - Zois Syrgiannis
- Center of Excellence for Nanostructured Materials (CENMAT) and INSTM, Unit of Trieste, Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy
| | - Milica D Budimir
- Vinča Institute of Nuclear Sciences, University of Belgrade, P. O. Box 522, 11001 Belgrade, Serbia
| | - Dusan D Milivojević
- Vinča Institute of Nuclear Sciences, University of Belgrade, P. O. Box 522, 11001 Belgrade, Serbia
| | - Dragana J Jovanovic
- Vinča Institute of Nuclear Sciences, University of Belgrade, P. O. Box 522, 11001 Belgrade, Serbia
| | - Vladimir B Pavlović
- Faculty of Agriculture, University of Belgrade, P. O. Box 14, 11081 Belgrade-Zemun, Serbia
| | - Jelena M Papan
- Vinča Institute of Nuclear Sciences, University of Belgrade, P. O. Box 522, 11001 Belgrade, Serbia
| | - Malte Bartenwerfer
- Department of Computing Science, Division Microrobotics and Control Engineering, Univerzitet Carl von Ossietzky, D-26129 Oldenburg, Germany
| | - Marija M Mojsin
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, P.O. Box 23, 11010 Belgrade, Serbia
| | - Milena J Stevanović
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, P.O. Box 23, 11010 Belgrade, Serbia; Faculty of Biology, University of Belgrade, Studentskitrg 16, 11000 Belgrade, Serbia; Serbian Academy of Sciences and Arts, KnezMihailova 35, 11000 Belgrade, Serbia
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Zhang Y, Xiao J, Zhuo P, Yin H, Fan Y, Liu X, Chen Z. Carbon Dots Exhibiting Concentration-Dependent Full-Visible-Spectrum Emission for Light-Emitting Diode Applications. ACS APPLIED MATERIALS & INTERFACES 2019; 11:46054-46061. [PMID: 31718129 DOI: 10.1021/acsami.9b14472] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Carbon dots (CDs) that exhibit emission over the whole visible spectrum are desired for use in light-emitting diodes (LEDs). Here, CDs displaying tunable fluorescence over the whole visible region are synthesized. Different concentrations of CDs are uniformly dispersed in epoxy resin and coated on 405 nm LED chips to obtain monochrome blue, cyan, green, yellow, red, and deep red LEDs that yield a color gamut covering 99.4% of the National Television Standards Committee (NTSC) standard. These monochrome LEDs display similar high stability. Furthermore, warm and neutral white LEDs are produced by coating cyan- and red-emitting CD layers on 405 nm LED chips, achieving color-rendering indexes (CRIs) of 96.4 and 96.6, respectively. Two fluorescent conversion layers derived from one material at different concentrations simplify the preparation of high-CRI white LEDs. The uniform weak changes of the cyan and red photoluminescence peaks during operation ensure the high stability of these CD-based white LEDs. This research provides a new avenue to develop low-cost, easy-to-prepare CDs with tunable emission colors as alternative phosphors for LED-based high-performance displays and lighting.
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Affiliation(s)
- Yongqiang Zhang
- Guangdong Provincial Engineering Research Center of Crystal and Laser Technology , Guangzhou 510632 , China
- Department of Optoelectronic Engineering , Jinan University , Guangzhou 510632 , China
| | - Junhao Xiao
- Guangdong Provincial Engineering Research Center of Crystal and Laser Technology , Guangzhou 510632 , China
- Department of Optoelectronic Engineering , Jinan University , Guangzhou 510632 , China
| | - Peng Zhuo
- Guangdong Provincial Engineering Research Center of Crystal and Laser Technology , Guangzhou 510632 , China
- Department of Optoelectronic Engineering , Jinan University , Guangzhou 510632 , China
| | - Hao Yin
- Guangdong Provincial Engineering Research Center of Crystal and Laser Technology , Guangzhou 510632 , China
- Department of Optoelectronic Engineering , Jinan University , Guangzhou 510632 , China
| | - Yi Fan
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics, and Physics , Chinese Academy of Sciences , Changchun 130033 , China
| | - Xingyuan Liu
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics, and Physics , Chinese Academy of Sciences , Changchun 130033 , China
| | - Zhenqiang Chen
- Guangdong Provincial Engineering Research Center of Crystal and Laser Technology , Guangzhou 510632 , China
- Department of Optoelectronic Engineering , Jinan University , Guangzhou 510632 , China
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Geng B, Shen W, Li P, Fang F, Qin H, Li XK, Pan D, Shen L. Carbon Dot-Passivated Black Phosphorus Nanosheet Hybrids for Synergistic Cancer Therapy in the NIR-II Window. ACS APPLIED MATERIALS & INTERFACES 2019; 11:44949-44960. [PMID: 31714729 DOI: 10.1021/acsami.9b15569] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Metal-free layered black phosphorus (BP) nanosheets with an excellent photothermal effect and large surface areas have been widely applied in biomedicine but are easily oxidized in ambient conditions yielding insulating phosphorus oxides adsorbed on its surface. Several chemical-functionalized strategies have been explored to protect thin layers of BP; however, the performance of passivated BP often decreases significantly, falling behind the single BP due to the strong structure perturbation. Herein, we designed and constructed 0D/2D hybrid photothermal agents by assembling NIR-II-responsive carbon dots (NIR-II-CDs) on BP nanosheets. NIR-II-CDs improve the ambient stability of BP by isolating them from water and oxygen and enhance the photothermal properties of BP nanosheets. Such NIR-II-CD/BP hybrids strengthen the light-harvesting ability, achieving high photothermal conversion efficiencies in the NIR-I (77.3%) and NIR-II (61.4%) windows, which is significantly higher than that of pristine BP (49.5 and 28.4% at 808 and 1064 nm). Owing to the intrinsic advantage of 1064 nm laser and the excellent PTT effect of our NIR-II-CD/BP hybrids, complete tumor eradication was realized in a deep-tissue tumor model.
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Affiliation(s)
| | | | | | | | | | | | | | - Longxiang Shen
- Department of Orthopedic Surgery , Shanghai Jiao Tong University affiliated Sixth People's Hospital , Shanghai 200233 , P.R. China
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42
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Zhi B, Yao X, Cui Y, Orr G, Haynes CL. Synthesis, applications and potential photoluminescence mechanism of spectrally tunable carbon dots. NANOSCALE 2019; 11:20411-20428. [PMID: 31641702 DOI: 10.1039/c9nr05028k] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Due to the prominent characteristics of carbon-based luminescent nanostructures (known colloquially as carbon dots), such as inexpensive precursors, excellent hydrophilicity, low toxicity, and intrinsic fluorescence, these nanomaterials are regarded as potential candidates to replace traditional quantum dots in some applications. As such, research in the field of carbon dots has been increasing in recent years. In this mini-review, we summarize recent progress in studies of multicolor carbon dots focusing on potential photoluminescence (PL) mechanisms, strategies for effective syntheses, and applications in ion/molecule and temperature sensing, light emitting diodes and high-resolution bioimaging techniques.
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Affiliation(s)
- Bo Zhi
- Department of Chemistry, University of Minnesota - Twin Cities, USA.
| | - XiaoXiao Yao
- Department of Chemistry, University of Minnesota - Twin Cities, USA.
| | - Yi Cui
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Galya Orr
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Christy L Haynes
- Department of Chemistry, University of Minnesota - Twin Cities, USA.
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43
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Tachi S, Morita H, Takahashi M, Okabayashi Y, Hosokai T, Sugai T, Kuwahara S. Quantum Yield Enhancement in Graphene Quantum Dots via Esterification with Benzyl Alcohol. Sci Rep 2019; 9:14115. [PMID: 31575943 PMCID: PMC6773719 DOI: 10.1038/s41598-019-50666-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 09/17/2019] [Indexed: 12/20/2022] Open
Abstract
The quantum yield of graphene quantum dots was enhanced by restriction of the rotation and vibration of surface functional groups on the edges of the graphene quantum dots via esterification with benzyl alcohol; this enhancement is crucial for the widespread application of graphene quantum dots in light-harvesting devices and optoelectronics. The obtained graphene quantum dots with highly graphene-stacked structures are understood to participate in π-π interactions with adjacent aromatic rings of the benzylic ester on the edges of the graphene quantum dots, thus impeding the nonradiative recombination process in graphene quantum dots. Furthermore, the crude graphene quantum dots were in a gel-like solid form and showed white luminescence under blue light illumination. Our results show the potential for improving the photophysical properties of nanomaterials, such as the quantum yield and band-gap energy for emission, by controlling the functional groups on the surface of graphene quantum dots through an organic modification approach.
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Affiliation(s)
- Suzuka Tachi
- Department of Chemistry, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan
| | - Hiroki Morita
- Department of Chemistry, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan
| | - Misaki Takahashi
- Department of Chemistry, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan
| | - Yusuke Okabayashi
- National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki, 305-8568, Japan
| | - Takuya Hosokai
- National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki, 305-8568, Japan
| | - Toshiki Sugai
- Department of Chemistry, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan
| | - Shota Kuwahara
- Department of Chemistry, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan.
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44
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Zhang Y, Zhuo P, Yin H, Fan Y, Zhang J, Liu X, Chen Z. Solid-State Fluorescent Carbon Dots with Aggregation-Induced Yellow Emission for White Light-Emitting Diodes with High Luminous Efficiencies. ACS APPLIED MATERIALS & INTERFACES 2019; 11:24395-24403. [PMID: 31246396 DOI: 10.1021/acsami.9b04600] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
For practical applications of carbon dots (CDs), a major challenge is to prevent the notorious aggregation-caused quenching (ACQ) effect. Herein, a new type of CDs (CD1) has been developed that can transform from ACQ to an enhancement of fluorescence by aggregation-induced emission (AIE). The blue fluorescence of the CDs is suppressed by ACQ. However, this is accompanied by the phenomenon of AIE at a longer wavelength, resulting in the emergence and gradual enhancement of yellow fluorescence. The obtained CD1 solid powder shows a bright yellow emission with a photoluminescence quantum yield (PLQY) of 65%. The photoluminescence (PL) spectra, absorption spectra, and time-resolved PL decay curves indicate that Förster resonant energy transfer from dispersed CD1 particles to large CD1 agglomerations leads to the enhancement of yellow fluorescence. To exploit its high PLQY and strong AIE, CD1 is applied as a color-converting layer on blue light-emitting diode (LED) chips to fabricate white LEDs (WLEDs). The obtained devices show white light coordinates of (0.29, 0.38) and (0.32, 0.42), which are close to pure white light (0.33, 0.33), and luminous efficiencies of 97.8 and 93.9 lm·W-1 and show good stability. The low cost, easy fabrication, controllability, and favorable fluorescence properties signify that CD1 of AIE will have superior performance in a variety of applications.
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Affiliation(s)
- Yongqiang Zhang
- Guangdong Provincial Engineering Research Center of Crystal and Laser Technology , Guangzhou 510632 , China
- Department of Optoelectronic Engineering , Jinan University , Guangzhou 510632 , China
| | - Peng Zhuo
- Guangdong Provincial Engineering Research Center of Crystal and Laser Technology , Guangzhou 510632 , China
- Department of Optoelectronic Engineering , Jinan University , Guangzhou 510632 , China
| | - Hao Yin
- Guangdong Provincial Engineering Research Center of Crystal and Laser Technology , Guangzhou 510632 , China
- Department of Optoelectronic Engineering , Jinan University , Guangzhou 510632 , China
| | - Yi Fan
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics, and Physics , Chinese Academy of Sciences , Changchun 130033 , China
| | - Jiahua Zhang
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics, and Physics , Chinese Academy of Sciences , Changchun 130033 , China
| | - Xingyuan Liu
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics, and Physics , Chinese Academy of Sciences , Changchun 130033 , China
| | - Zhenqiang Chen
- Guangdong Provincial Engineering Research Center of Crystal and Laser Technology , Guangzhou 510632 , China
- Department of Optoelectronic Engineering , Jinan University , Guangzhou 510632 , China
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45
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Wang G, He P, Xu A, Guo Q, Li J, Wang Z, Liu Z, Chen D, Yang S, Ding G. Promising Fast Energy Transfer System Between Graphene Quantum Dots and the Application in Fluorescent Bioimaging. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:760-766. [PMID: 30485105 DOI: 10.1021/acs.langmuir.8b03739] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Tunable photoluminescence performance of graphene quantum dots (GQDs) is one of the most important topics for the development of GQDs. In this paper, we report lattice-doped GQDs (boron-doped GQDs (B-GQDs) and phosphorus-doped GQDs (P-GQDs)). Because of the matched band structure, the fast energy transfer between blue-emitted B-GQDs (emission wavelength: 460 nm) and orange-emitted P-GQDs (emission wavelength: 630 nm) can induce an efficient fluorescence emission in P-GQDs once B-GQDs are excited under the optimal excitation wavelength of 460 nm. Moreover, with the effective energy transfer, the quantum yield of P-GQDs increased to 0.48, which is much higher than that of pure P-GQDs. We also demonstrated the potentials of this system for fluorescent bioimaging in vitro.
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Affiliation(s)
- Gang Wang
- Department of Microelectronic Science and Engineering, Faculty of Science , Ningbo University , Ningbo 315211 , P. R. China
| | - Peng He
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of microsystem and Information Technology , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Anli Xu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of microsystem and Information Technology , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Qinglei Guo
- Department of Materials Science , Fudan University , Shanghai 200433 , P. R. China
| | - Jiurong Li
- Department of Microelectronic Science and Engineering, Faculty of Science , Ningbo University , Ningbo 315211 , P. R. China
| | - Zihao Wang
- Department of Microelectronic Science and Engineering, Faculty of Science , Ningbo University , Ningbo 315211 , P. R. China
| | - Zhiduo Liu
- State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors , Chinese Academy of Sciences , Beijing 100083 , P. R. China
| | - Da Chen
- Department of Microelectronic Science and Engineering, Faculty of Science , Ningbo University , Ningbo 315211 , P. R. China
| | - Siwei Yang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of microsystem and Information Technology , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Guqiao Ding
- Department of Microelectronic Science and Engineering, Faculty of Science , Ningbo University , Ningbo 315211 , P. R. China
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of microsystem and Information Technology , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
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46
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Tong Y, Yu X, Wang H, Yao B, Li C, Shi G. Trace Level Co–N Doped Graphite Foams as High-Performance Self-Standing Electrocatalytic Electrodes for Hydrogen and Oxygen Evolution. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01131] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yue Tong
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Xiaowen Yu
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Haiyan Wang
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Bowen Yao
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Chun Li
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Gaoquan Shi
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, People’s Republic of China
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47
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Huang H, Yang S, Li Q, Yang Y, Wang G, You X, Mao B, Wang H, Ma Y, He P, Liu Z, Ding G, Xie X. Electrochemical Cutting in Weak Aqueous Electrolytes: The Strategy for Efficient and Controllable Preparation of Graphene Quantum Dots. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:250-258. [PMID: 29249142 DOI: 10.1021/acs.langmuir.7b03425] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The controllable and efficient electrochemical preparation of highly crystalline graphene quantum dots (GQDs) in an aqueous system is still challenging. Here, we developed a weak electrolyte-based (typically an ammonia solution) electrochemical method to enhance the oxidation and cutting process and therefore achieve a high yield of GQDs. The yield of GQDs (3-8 nm) is 28%, approximately 28 times higher than the yield of GQDs prepared by other strong electrolytes. The whole preparation process can be accomplished within 2 h because of the effective free radical oxidation process and the suppressed intercalation-induced exfoliation in weakly ionized aqueous electrolytes. The GQDs also showed excellent crystallinity which is obviously better than the crystallinity of GQDs obtained via bottom-up approaches. Moreover, amino-functionalization of GQDs can be realized by manipulating the electrolyte concentration. We further demonstrate that the proposed method can also be expanded to other weak electrolytes (such as HF and H2S) and different anode precursor materials (such as graphene/graphite papers, carbon fibers, and carbon nanotubes).
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Affiliation(s)
- Haoguang Huang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, P. R. China
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Siwei Yang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, P. R. China
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Qingtian Li
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, P. R. China
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Yucheng Yang
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
- School of Physical Science and Technology, ShanghaiTech University , Shanghai 200031, P. R. China
| | - Gang Wang
- Department of Microelectronic Science and Engineering, Faculty of Science, Ningbo University , Ningbo 315211, P. R. China
| | - Xiaofei You
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, P. R. China
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Baohua Mao
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, P. R. China
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Huishan Wang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, P. R. China
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Yu Ma
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, P. R. China
| | - Peng He
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, P. R. China
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Zhi Liu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, P. R. China
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
- School of Physical Science and Technology, ShanghaiTech University , Shanghai 200031, P. R. China
| | - Guqiao Ding
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, P. R. China
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Xiaoming Xie
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , Shanghai 200050, P. R. China
- University of Chinese Academy of Sciences , Beijing 100049, P. R. China
- School of Physical Science and Technology, ShanghaiTech University , Shanghai 200031, P. R. China
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48
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Hai X, Feng J, Chen X, Wang J. Tuning the optical properties of graphene quantum dots for biosensing and bioimaging. J Mater Chem B 2018; 6:3219-3234. [DOI: 10.1039/c8tb00428e] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review highlights new insights into the various strategies used to tune the optical features of graphene quantum dots, and their use as attractive and powerful probes for bio-sensing/imaging.
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Affiliation(s)
- Xin Hai
- Department of Chemistry
- Research Center for Analytical Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Ji Feng
- Department of Chemistry
- Research Center for Analytical Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Xuwei Chen
- Department of Chemistry
- Research Center for Analytical Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Jianhua Wang
- Department of Chemistry
- Research Center for Analytical Sciences
- Northeastern University
- Shenyang 110819
- China
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49
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Xu H, Zhou S, Liu J, Wei Y. Nanospace-confined preparation of uniform nitrogen-doped graphene quantum dots for highly selective fluorescence dual-function determination of Fe3+ and ascorbic acid. RSC Adv 2018; 8:5500-5508. [PMID: 35542405 PMCID: PMC9078092 DOI: 10.1039/c7ra13001e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 01/27/2018] [Indexed: 12/27/2022] Open
Abstract
N-Doped graphene quantum dots (N-GQDs) combine the advantages of N-doped carbon and quantum dot materials, displaying enhanced performance in electrocatalysis, drug delivery, sensing and so on. In this work, novel hydrotropic N-GQDs with controlled size are obtained for the first time via a nanospace-confined preparation strategy, in which HNO3 vapour serves as scissors for quickly cutting the N-doped carbon nanolayer in the confined nanospace of reusable mesoporous molecular sieves. The as-prepared N-GQDs exhibit a uniform lateral size of about 2.4 nm, high photostability and yellow fluorescence, which is strongly quenched upon addition of ferric ions due to the coordination between ferric ions and N/O-rich groups of the N-GQDs surface. Significantly, the fluorescence response to Fe3+ is linear in the 0.5 to 40 μM concentration range and the N-GQDs showed good selectivity and satisfying recovery for ferric ion detection in tap water. Noteworthily, the quenched fluorescence by Fe3+ can be recovered by adding ascorbic acid (AA), which efficiently destroyed the coordination between Fe3+ and N-GQDs. Based on this principle, the N-GQDs were used to successfully construct an AA sensor, exhibiting a wide linearity range (between 0.5 and 90 μM) with a low detection of limit (80 nM at S/N = 3) and better selectivity towards AA compared with other common physiological substances. Finally, the constructed fluorescence sensor was employed successfully for AA determination in fish blood with satisfactory recovery ranging from 95.3 to 106.2%. The results indicate that N-GQDs synthesized by the nanospace-confined strategy are promising in biosensor fabrication. Nanospace-confined synthesis of N-GQDs was successfully achieved via a mesoporous silica recycling and vapor cutting route for label-free fluorescence dual-function detection of Fe3+ and AA.![]()
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Affiliation(s)
- Hongbo Xu
- College of Chemistry and Chemical Engineering
- Hebei Normal University for Nationalities
- Chengde 067000
- China
| | - Shenghai Zhou
- College of Chemistry and Chemical Engineering
- Hebei Normal University for Nationalities
- Chengde 067000
- China
| | - Jinyu Liu
- College of Chemistry and Chemical Engineering
- Hebei Normal University for Nationalities
- Chengde 067000
- China
| | - Yajun Wei
- College of Chemistry and Chemical Engineering
- Hebei Normal University for Nationalities
- Chengde 067000
- China
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50
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Santiago SRM, Wong YA, Lin TN, Chang CH, Yuan CT, Shen JL. Effect of nitrogen doping on the photoluminescence intensity of graphene quantum dots. OPTICS LETTERS 2017; 42:3642-3645. [PMID: 28914922 DOI: 10.1364/ol.42.003642] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 08/21/2017] [Indexed: 06/07/2023]
Abstract
We have developed a facile, fast, and one-step synthetic method to prepare graphene quantum dots (GQDs) simultaneously with nitrogen (N) doping via pulsed laser ablation. The N-doped GQDs (N-GQDs) with an average size around 3 nm and an N/C atomic ratio of 33% have been obtained. The N-GQDs emit blue photoluminescence (PL), where the PL intensity enhances as the N doping increases. The PL enhancement for the N-GQDs with a factor as high as 25 has been achieved as compared to GQDs. The origin of the PL enhancement in GQDs after N doping is attributed to the increased densities of pyridinic and graphitic N.
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