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Li J, Zhao H, Zhao X, Gong X. Aggregation-Induced Enhanced Red Emission Graphene Quantum Dots for Integrated Fabrication of Luminescent Solar Concentrators. NANO LETTERS 2024; 24:11722-11729. [PMID: 39248378 DOI: 10.1021/acs.nanolett.4c03412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/10/2024]
Abstract
Graphene quantum dots (GQDs) commonly suffer from the fluorescence problem of aggregation-caused quenching under high-concentration loading or in the solid state, which seriously hinders the application. Here we report a type of GQDs with red aggregation-induced enhanced emission (AIEE). It is confirmed that the aggregation state of the AIEE GQDs is a J-aggregate. The GQDs/poly(methyl methacrylate) film presented a photoluminescence quantum yield as high as 60.81%, and the record-high performance of luminescent solar concentrators (LSCs) was achieved. The power conversion efficiency (ηPCE) is up to 8.35% and the external optical efficiency (ηext) is ∼8.99% for the GQD-based LSCs (45 mW/cm2). Even under one sun illumination (100 mW/cm2), the corresponding ηPCE and ηext values are 3.12% and 4.52%, respectively. The internal photon efficiency (ηint) of an LSC device is about 5.02%. The synthesis of AIEE GQDs bridges the research gap in the emission mechanism of AIEE in GQDs.
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Affiliation(s)
- Jiurong Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Haiguang Zhao
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P. R. China
| | - Xiujian Zhao
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Xiao Gong
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, P. R. China
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2
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Sheng Y, Qing D, Li N, Zhang P, Sun Y, Zhang R. Singlet oxygen production of Zn-Ag-In-S quantum dots for photodynamic treatment of cancer cells and bacteria. J Biomater Appl 2024; 39:129-138. [PMID: 38782577 DOI: 10.1177/08853282241255817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Zn-Ag-In-S (ZAIS) quantum dots (QDs) were synthesized with various Ag-to-In ratios and used as novel photosensitizers for photodynamic therapy (PDT) on cancer cell inhibition and bacterial sterilization, and their structural, optical, and photodynamic properties were investigated. The alloyed QDs displayed a photoluminescence quantum yield of 72% with a long fluorescence lifetime of 5.3 μs when the Ag-to-In ratio was 1:3, suggesting a good opportunity as a dual functional platform for fluorescence imaging and PDT. The ZAIS QDs were then coated with amphiphilic brush copolymer poly(maleic anhydride-alt-1-octadecene) (PMAO) before application. The 1O2 quantum yield of the ZAIS/PMAO was measured to be 8%, which was higher than previously reported CdSe QDs and comparable to some organic photosensitizers. Moreover, the ZAIS QDs showed excellent stability in aqueous and biological media, unlike organic photosensitizers that tend to degrade over time. The in vitro PDT against human melanoma cell line (A2058) and Staphylococcus aureus shows about 30% inhibition rate upon 20 min light irradiation. Cell staining images clearly demonstrated that co-treatment with ZAIS QDs and light irradiation effectively killed A2058 cells, demonstrating the potential of ZAIS QDs as novel and versatile photosensitizers for PDT in cancer and bacterial treatment, and provides useful information for future designing of QD-based photosensitizers.
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Affiliation(s)
- Yang Sheng
- National Experimental Demonstration Center for Materials Science and Engineering, Jiangus Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, China
| | - Danni Qing
- National Experimental Demonstration Center for Materials Science and Engineering, Jiangus Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, China
| | - Naijun Li
- National Experimental Demonstration Center for Materials Science and Engineering, Jiangus Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, China
| | - Peng Zhang
- National Experimental Demonstration Center for Materials Science and Engineering, Jiangus Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, China
| | - Yixin Sun
- National Experimental Demonstration Center for Materials Science and Engineering, Jiangus Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, China
| | - Rong Zhang
- National Experimental Demonstration Center for Materials Science and Engineering, Jiangus Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, China
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Li J, Zhao X, Gong X. The Emerging Star of Carbon Luminescent Materials: Exploring the Mysteries of the Nanolight of Carbon Dots for Optoelectronic Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400107. [PMID: 38461525 DOI: 10.1002/smll.202400107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/19/2024] [Indexed: 03/12/2024]
Abstract
Carbon dots (CDs), a class of carbon-based nanomaterials with dimensions less than 10 nm, have attracted significant interest since their discovery. They possess numerous excellent properties, such as tunability of photoluminescence, environmental friendliness, low cost, and multifunctional applications. Recently, a large number of reviews have emerged that provide overviews of their synthesis, properties, applications, and their composite functionalization. The application of CDs in the field of optoelectronics has also seen unprecedented development due to their excellent optical properties, but reviews of them in this field are relatively rare. With the idea of deepening and broadening the understanding of the applications of CDs in the field of optoelectronics, this review for the first time provides a detailed summary of their applications in the field of luminescent solar concentrators (LSCs), light-emitting diodes (LEDs), solar cells, and photodetectors. In addition, the definition, categories, and synthesis methods of CDs are briefly introduced. It is hoped that this review can bring scholars more and deeper understanding in the field of optoelectronic applications of CDs to further promote the practical applications of CDs.
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Affiliation(s)
- Jiurong Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Xiujian Zhao
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Xiao Gong
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China
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Han Y, Shi B, Xie E, Huang P, Zhou Y, Xue C, Wen W, Pu H, Zhang M, Wu J. A bio-inspired co-simulation crawling robot enabled by a carbon dot-doped dielectric elastomer. SOFT MATTER 2024; 20:3436-3447. [PMID: 38564251 DOI: 10.1039/d4sm00029c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Flexible actuation materials play a crucial role in biomimetic robots. Seeking methods to enhance actuation and functionality is one of the directions in which actuators strive to meet the high-performance and diverse requirements of environmental conditions. Herein, by utilizing the method of adsorbing N-doped carbon dots (NCDs) onto SiO2 to form clusters of functional particles, a NCDs@SiO2/PDMS elastomer was prepared and its combined optical and electrical co-stimulation properties were effectively harnessed to develop a biomimetic crawling robot resembling Rhagophthalmus (firefly). The introduction of NCDs@SiO2 cluster particles not only effectively improves the mechanical and dielectric properties of the elastomer but also exhibits fluorescence response and actuation response under the co-stimulation of UV and electricity, respectively. Additionally, a hybrid dielectric elastomer actuator (DEA) with a transparent SWCNT mesh electrode exhibits two notable advancements: an 826% increase in out-of-plane displacement under low electric field stimulation compared to the pure matrix and the ability of NCDs to maintain a stable excited state within the polymer for an extended duration under UV-excitation. Simultaneously, the transparent biomimetic crawling robot can stealthily move in specific environments and fluoresce under UV light.
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Affiliation(s)
- Yubing Han
- Materials Genome Institute, Shanghai University, Shanghai 200444, China.
| | - Bori Shi
- Materials Genome Institute, Shanghai University, Shanghai 200444, China.
| | - En Xie
- Materials Genome Institute, Shanghai University, Shanghai 200444, China.
| | - Peng Huang
- Materials Genome Institute, Shanghai University, Shanghai 200444, China.
| | - Yaozhong Zhou
- Materials Genome Institute, Shanghai University, Shanghai 200444, China.
| | - Chang Xue
- Materials Genome Institute, Shanghai University, Shanghai 200444, China.
- Zhejiang Laboratory, Hangzhou 311100, China
| | - Weijia Wen
- HKUST Shenzhen-Hong Kong Collaborative Innovation Research Institute, Futian, Shenzhen 518031, China
- Thrust of Advanced Materials, The Hong Kong University of Science and Technology (Guang Zhou), Guang Zhou 511455, China
| | - Huayan Pu
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
| | - Mengying Zhang
- Faculty of Materials Science, Shenzhen MSU-BIT University, Shenzhen 518000, China
| | - Jinbo Wu
- Materials Genome Institute, Shanghai University, Shanghai 200444, China.
- Zhejiang Laboratory, Hangzhou 311100, China
- Faculty of Materials Science, Shenzhen MSU-BIT University, Shenzhen 518000, China
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Lei YY, Zhan X, Wu YW, Yu XX. N,Si co-doped GQDs: Facile green preparation and application in visual identifying dihydroxybenzene isomers and selective quantification of catechol, hydroquinone and antioxidants. Talanta 2024; 268:125287. [PMID: 37832454 DOI: 10.1016/j.talanta.2023.125287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/12/2023] [Accepted: 10/06/2023] [Indexed: 10/15/2023]
Abstract
A green economical procedure for preparing N,Si co-doped graphene quantum dots (N,Si-GQDs) using waste toners and ethylene diamine was reported, which not only minimizes waste and promotes recycling but also offers an alternative method for producing N,Si-GQDs. At a pH of 8.5, hydroquinone and catechol underwent oxidation in the presence of air, resulting in the formation of diquinones, specifically p-phenyldiquinone and o-phenyldiquinone. Resorcinol, on the other hand, was converted into monoquinone. The interaction between diquinones and N,Si-GQDs caused a linear fluorescence quenching effect when catechol and hydroquinone were present. However, this effect was minimal in the case of resorcinol. Furthermore, the antioxidants glutathione (GSH) and ascorbic acid (AA) were observed to disrupt the redox equilibrium of catechol and o-phenyldiquinone, leading to the activation of fluorescence. Conversely, hydroquinone and p-phenyldiquinone, due to the highly stable and symmetrical structure of p-phenyldiquinone, did not exhibit this fluorescence activation. Based on the described "Off-On" sensor system, it was possible to visually identify dihydroxybenzene isomers and selectively quantify catechol and hydroquinone in environmental samples, as well as GSH and AA in human serum. The method detection limits were 0.93, 1.35, 2.34, and 1.37 μM for catechol, hydroquinone, GSH, and AA, respectively. In conclusion, the presented procedure offers several advantages, including environmental friendliness, cost-effectiveness, and a means of recycling waste toners. It also demonstrates the successful synthesis of N,Si-GQDs, as well as the potential for their application in the "Off-On" sensor system for the detection and quantification of various analytes.
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Affiliation(s)
- Ya-Ya Lei
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, 435002, China
| | - Xin Zhan
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, 435002, China
| | - Yi-Wei Wu
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, 435002, China.
| | - Xiao-Xiao Yu
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, 435002, China.
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Im MJ, Kim JI, Hyeong SK, Moon BJ, Bae S. From Pristine to Heteroatom-Doped Graphene Quantum Dots: An Essential Review and Prospects for Future Research. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2304497. [PMID: 37496316 DOI: 10.1002/smll.202304497] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Indexed: 07/28/2023]
Abstract
Graphene quantum dots (GQDs) are carbon-based zero-dimensional materials that have received considerable scientific interest due to their exceptional optical, electrical, and optoelectrical properties. Their unique electronic band structures, influenced by quantum confinement and edge effects, differentiate the physical and optical characteristics of GQDs from other carbon nanostructures. Additionally, GQDs can be synthesized using various top-down and bottom-up approaches, distinguishing them from other carbon nanomaterials. This review discusses recent advancements in GQD research, focusing on their synthesis and functionalization for potential applications. Particularly, various methods for synthesizing functionalized GQDs using different doping routes are comprehensively reviewed. Based on previous reports, current challenges and future directions for GQDs research are discussed in detail herein.
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Affiliation(s)
- Min Ji Im
- Functional Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju, Jeollabuk-do, 55324, Republic of Korea
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju, 61005, Republic of Korea
| | - Jin Il Kim
- Functional Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju, Jeollabuk-do, 55324, Republic of Korea
| | - Seok-Ki Hyeong
- Functional Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju, Jeollabuk-do, 55324, Republic of Korea
- Department of Energy Systems Research and Department of Materials Science and Engineering, Ajou University, Suwon, Gyeonggi-do, 16499, Republic of Korea
| | - Byung Joon Moon
- Functional Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju, Jeollabuk-do, 55324, Republic of Korea
- Department of JBNU-KIST Industry-Academia Convergence Research, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeollabuk-do, 54896, Republic ofKorea
| | - Sukang Bae
- Functional Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju, Jeollabuk-do, 55324, Republic of Korea
- Department of JBNU-KIST Industry-Academia Convergence Research, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeollabuk-do, 54896, Republic ofKorea
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7
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Bai Y, Zhao B, Ni J, Sun L, Wang Y, Wang J, Liu Y, Han S, Gao F, Zhang C. Construction of composite films using carbon nanodots for blocking ultraviolet light from the Sun. RSC Adv 2023; 13:23728-23735. [PMID: 37555088 PMCID: PMC10405637 DOI: 10.1039/d3ra04123a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 08/02/2023] [Indexed: 08/10/2023] Open
Abstract
Carbon nanodots (CNDs) which demonstrate concentration-dependent emission and have a photoluminescence quantum yield of 45% were designed. Transparent CND-containing composite films (CND-films), obtained by combining the CNDs with polyvinyl alcohol in different proportions, were shown to block the UV component of sunlight. Whereas the pure PVA film could not block UV light, the ability of CND-films to block UV light could be adjusted by altering the proportion of CNDs in the film. The larger the proportion of CNDs, the greater the extent of UV blocking. CND-film containing 32 wt% CNDs completely blocked UV light (≤400 nm) from sunlight, without affecting the transmission of visible light (>800 nm). The ability of the CND-films to block the UV component of sunlight was investigated using a commercially available UV-induced color change card, which confirmed that the capacity of the CND-films to block UV light could be adjusted by altering the proportion of CNDs in the film. This study shows that CNDs with concentration-dependent long wavelength emission characteristics can be used as optical barrier units for the preparation of materials to block high-energy short wavelength light.
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Affiliation(s)
- Yibing Bai
- Key Laboratory of Bio-Based Material Science & Technology (Northeast Forestry University), Ministry of Education Harbin 150040 China
| | - Bin Zhao
- Key Laboratory of Bio-Based Material Science & Technology (Northeast Forestry University), Ministry of Education Harbin 150040 China
| | - Jiaxin Ni
- Key Laboratory of Bio-Based Material Science & Technology (Northeast Forestry University), Ministry of Education Harbin 150040 China
| | - Lianhang Sun
- Key Laboratory of Bio-Based Material Science & Technology (Northeast Forestry University), Ministry of Education Harbin 150040 China
| | - Yuning Wang
- Key Laboratory of Bio-Based Material Science & Technology (Northeast Forestry University), Ministry of Education Harbin 150040 China
| | - Jing Wang
- Key Laboratory of Bio-Based Material Science & Technology (Northeast Forestry University), Ministry of Education Harbin 150040 China
| | - Yu Liu
- Key Laboratory of Bio-Based Material Science & Technology (Northeast Forestry University), Ministry of Education Harbin 150040 China
| | - Shiyan Han
- Key Laboratory of Bio-Based Material Science & Technology (Northeast Forestry University), Ministry of Education Harbin 150040 China
| | - Fugang Gao
- Jiangsu Transline Technology Co. Ltd Changzhou 213100 China
| | - Chunlei Zhang
- Key Laboratory of Bio-Based Material Science & Technology (Northeast Forestry University), Ministry of Education Harbin 150040 China
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Bai J, Qin F, He P, Wu S, Zhu Y, Yuan G, Wang X, Yu X, Ren L. Carbon dots-based luminescent materials with aggregation-induced emission and solvent crystallization-induced emission behaviors. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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Lu Y, Jin B, Zheng R, Wu S, Zhao D, Qiu M. Production and Patterning of Fluorescent Quantum Dots by Cryogenic Electron-Beam Writing. ACS APPLIED MATERIALS & INTERFACES 2023; 15:12154-12160. [PMID: 36848286 DOI: 10.1021/acsami.2c21052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Graphene quantum dots (GQDs) have emerged as a promising type of functional material with distinguished properties. Although tremendous effort was devoted to the preparation of GQDs, their applications are still limited due to a lack of methods for processing GQDs from synthesis to patterning smoothly. Here, we demonstrate that aromatic molecules, e.g., anisole, can be directly converted into GQD-containing nanostructures by cryogenic electron-beam writing. Such an electron-beam irradiation product exhibits evenly red fluorescence emission under laser excitation at 473 nm, and its photoluminescence intensity can be easily tuned with the electron-beam exposure dose. Experimental characterizations on the chemical composition of the product reveal that anisole undergoes a carbonization and further graphitization process during e-beam irradiation. With conformal coating of anisole, our approach can create arbitrary fluorescent patterns on both planar and curved surfaces for concealing information or anticounterfeiting applications. This study provides a one-step method for production and patterning of GQDs, facilitating their applications in highly integrated and compact optoelectronic devices.
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Affiliation(s)
- Yihan Lu
- College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Binbin Jin
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Rui Zheng
- College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Shan Wu
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Ding Zhao
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Min Qiu
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou 310024, China
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Sheikh Mohd Ghazali SAI, Fatimah I, Zamil ZN, Zulkifli NN, Adam N. Graphene quantum dots: A comprehensive overview. OPEN CHEM 2023. [DOI: 10.1515/chem-2022-0285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Abstract
Abstract
Because of their prospective applications and exceptional features, graphene quantum dots (GQDs) have gotten a lot of recognition as a new class of fluorescent carbon materials. One of the carbon family’s newest superstars is the GQD. Due to its exceptional optoelectrical qualities, it has sparked a lot of curiosity since its debut in 2008. Two of the most important traits are a band gap that is not zero, biocompatibility, and highly changeable characteristics. GQDs have several important characteristics. GQDs have shown potential in a variety of fields, for instance, catalysis, sensing, energy devices, drug delivery, bioimaging, photothermal, and photodynamic therapy. Because this area constantly evolves, it is vital to recognize emerging GQD concerns in the current breakthroughs, primarily since some specific uses and developments in the case of GQDs synthesis have not been thoroughly investigated through previous studies. The current results in the properties, synthesis, as well as benefits of GQDs are discussed in this review study. As per the findings of this research, the GQD’s future investigation is boundless, mainly if the approaching investigation focuses on purifying simplicity and environmentally friendly synthesis, as well as boosting photoluminescence quantum output and manufacturing output of GQDs.
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Affiliation(s)
| | - Is Fatimah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia , Kampus Terpadu UII, Jl. Kaliurang Km 14 , Sleman, Yogyakarta 55584 , Indonesia
| | - Zaireen Natasya Zamil
- Faculty of Applied Sciences, Universiti Teknologi MARA Cawangan Negeri Sembilan, Kampus Kuala Pilah , Kuala Pilah 72000, Negeri Sembilan , Malaysia
| | - Nur Nadia Zulkifli
- Faculty of Applied Sciences, Universiti Teknologi MARA Cawangan Negeri Sembilan, Kampus Kuala Pilah , Kuala Pilah 72000, Negeri Sembilan , Malaysia
| | - Nurain Adam
- Kontra Pharma (M) SdnBhd(90082-V) Kontra Technology Centre (Block B) 1, 2 & 3, Industrial Estate , 75250, Jalan Ttc12 , Malacca , Malaysia
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11
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Qin F, Bai J, Zhu Y, He P, Wang X, Wu S, Yu X, Ren L. Searching for the true origin of the red fluorescence of leaf-derived carbon dots. Phys Chem Chem Phys 2023; 25:2762-2769. [PMID: 36645185 DOI: 10.1039/d2cp05130c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We report for the first time that the red fluorescence of leaf-derived carbon dots is derived from chlorophyll, and a possible formation structure is proposed. By controlling the solvothermal reaction temperature, the new luminescence center of CDs can be adjusted. This work provides unprecedented insights into the luminescence mechanism of biomass-derived CDs.
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Affiliation(s)
- Fu Qin
- School of Chemistry & Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Jianliang Bai
- School of Chemistry & Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Yaqing Zhu
- School of Chemistry & Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Pinyi He
- School of Chemistry & Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Xinyu Wang
- School of Chemistry & Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Shuang Wu
- School of Chemistry & Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Xu Yu
- School of Chemistry & Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Lili Ren
- School of Chemistry & Chemical Engineering, Southeast University, Nanjing 211189, China.
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12
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Li P, Xue S, Sun L, Zong X, An L, Qu D, Wang X, Sun Z. Formation and fluorescent mechanism of red emissive carbon dots from o-phenylenediamine and catechol system. LIGHT, SCIENCE & APPLICATIONS 2022; 11:298. [PMID: 36229434 PMCID: PMC9561683 DOI: 10.1038/s41377-022-00984-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 08/31/2022] [Accepted: 09/15/2022] [Indexed: 05/19/2023]
Abstract
Carbon dots (CDs) as the advancing fluorescent carbon nanomaterial have superior potential and prospective. However, the ambiguous photoluminescence (PL) mechanism and intricate structure-function relationship become the greatest hindrances in the development and applications of CDs. Herein, red emissive CDs were synthesized in high yield from o-phenylenediamine (oPD) and catechol (CAT). The PL mechanism of the CDs is considered as the molecular state fluorophores because 5,14-dihydroquinoxalino[2,3-b] phenazine (DHQP) is separated and exhibits the same PL properties and behavior as the CDs. These include the peak position and shape of the PL emission and PL excitation and the emission dependence on pH and solvent polarity. Both of them display close PL lifetime decays. Based on these, we deduce that DHQP is the fluorophore of the red emissive CDs and the PL mechanism of CDs is similar to DHQP. During the PL emission of CDs, the electron of the molecule state can transfer to CDs. The formation process of DHQP is further confirmed by the reaction intermediates (phthalazine, dimers) and oPD. These findings provide insights into the PL mechanism of this type of CDs and may guide the further development of tunable CDs for tailored properties.
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Affiliation(s)
- Pengfei Li
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100124, Beijing, China
| | - Shanshan Xue
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100124, Beijing, China
| | - Lu Sun
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100124, Beijing, China
| | - Xupeng Zong
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100124, Beijing, China
| | - Li An
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100124, Beijing, China
| | - Dan Qu
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100124, Beijing, China
| | - Xiayan Wang
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100124, Beijing, China
| | - Zaicheng Sun
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Beijing University of Technology, 100124, Beijing, China.
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13
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Wang J, Zhang S, Li Y, Wu C, Zhang W, Zhang H, Xie Z, Zhou S. Ultra-Broadband Random Laser and White-Light Emissive Carbon Dots/Crystal In-Situ Hybrids. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203152. [PMID: 36026553 DOI: 10.1002/smll.202203152] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/30/2022] [Indexed: 06/15/2023]
Abstract
The continuous white-light emission of carbon dots (CDs) can be applied to producing multicolor laser emissions by one single medium. Meanwhile, the solid-state emission greatly contributes to its practical application. In this work, a strategy to realize the in-situ hybridization of silane-functionalized CDs (SiCDs) and 1,3,5-benzenetricarboxylic acid trimethyl ester (Et3BTC) by a one-pot solvothermal method is reported. Significantly, the SiCDs/Et3BTC hybrid crystals exhibit ultra-broadband random laser emission over the near ultraviolet-visible region under 265 nm nanosecond pulsed laser excitation. The wavelength region of laser emission is achieved from 315 to 600 nm within an emission band of CDs-based materials. It is worth noting that the wavelength range of the laser is wider than the previously reported works. It is proposed that the continuous white-light emission of SiCDs caused by multiple fluorescence centers mainly gives rise to the broadband random laser emission. Moreover, the crystals are conducive to forming resonance and realizing solid-state laser emission. This in-situ method is expected to enable a more convenient, cheaper, and greener approach to prepare luminescent hybrids for application in multicolor laser displays, multi-level laser anti-counterfeiting, supercontinuum light sources, and so on.
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Affiliation(s)
- Jingjing Wang
- State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, P. R. China
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Shaofeng Zhang
- Shenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yunfei Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Cuiyu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Wenfei Zhang
- Shenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Hailong Zhang
- State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Zheng Xie
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Shuyun Zhou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
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14
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Xian Y, Li K. Hydrothermal Synthesis of High-Yield Red Fluorescent Carbon Dots with Ultra-Narrow Emission by Controlled O/N Elements. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201031. [PMID: 35353413 DOI: 10.1002/adma.202201031] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/23/2022] [Indexed: 06/14/2023]
Abstract
Red fluorescent carbon dots (r-CDs) with narrow dual emissions (600 nm and 658-683 nm, full width at half-maximums (FWHMs) of 20 nm and 30 nm), fluorescence quantum yield of 41.0%, and yield of 83.3% are prepared by hydrothermal method using o-phenylenediamine as precursor and inorganic oxidant as yield enhancer, and they have graphite nitrate-like structures. The long-wavelength side emission is aggregation-induced emission (AIE). A logarithmic relationship between the AIE wavelength (y) and the concentration (x) (y = 8.853ln(x) + 688.53, R = 0.998) is found. This regularity and the high monochromaticity of AIE are related to the existence of highly ordered structures proved by X-ray diffraction. Its intrinsic emission (FWHM: 20 nm) is the narrowest among the r-CDs prepared by hydrothermal method. The reason is that the decrease of oxygen content makes the FWHMs become narrow, and the decrease of the pyridine nitrogen content and the increase of pyrrole nitrogen content make them narrower further. The Fourier-transform infrared spectra and control experiment prove that oxidative polymerization is a necessary preparation step. The linear relationship between the amount of the oxidant and the CDs yield indicates that the yield can be increased only by increasing the conversion rate of the polymerization process.
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Affiliation(s)
- Yingmei Xian
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Kang Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
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15
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Cai KB, Huang HY, Hsieh ML, Chen PW, Chiang SE, Chang SH, Shen JL, Liu WR, Yuan CT. Two-Dimensional Self-Assembly of Boric Acid-Functionalized Graphene Quantum Dots: Tunable and Superior Optical Properties for Efficient Eco-Friendly Luminescent Solar Concentrators. ACS NANO 2022; 16:3994-4003. [PMID: 35234037 DOI: 10.1021/acsnano.1c09582] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Carbon-based nanomaterials hold promise for eco-friendly alternatives to heavy-metal-containing quantum dots (QDs) in optoelectronic applications. Here, boric acid-functionalized graphene quantum dots (B-GQDs) were prepared using bottom-up molecular fusion based on nitrated pyrenes and boric acid. Such B-GQDs with crystalline graphitic structures and hydrogen-bonding functionalities would be suitable model systems for unraveling the photoluminescence (PL) mechanism, while serving as versatile building blocks for supramolecular self-assembly. Unlike conventional GQDs with multiple emissive states, the B-GQDs exhibited excitation-wavelength-independent, vibronic-coupled excitonic emission. Interestingly, their PL spectra can be tuned without largely sacrificing the quantum yield (QY) due to two-dimensional self-assembly. In addition, such B-GQDs in a polystyrene matrix possessed an ultrahigh QY (∼90%) and large exciton binding energy (∼300 meV). Benefiting from broadband absorption, ultrahigh QY, and long-wavelength emission, efficient laminated luminescent solar concentrators (100 × 100 × 6.3 mm3) were fabricated, yielding a high power conversion efficiency (1.4%).
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Affiliation(s)
- Kun-Bin Cai
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Hsiu-Ying Huang
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Meng-Lin Hsieh
- Department of Chemical Engineering, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Po-Wen Chen
- Physics Division, Institute of Nuclear Energy Research, Taoyuan 325207, Taiwan
| | - Shou-En Chiang
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Sheng Hsiung Chang
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Ji-Lin Shen
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Wei-Ren Liu
- Department of Chemical Engineering, Chung Yuan Christian University, Taoyuan 320314, Taiwan
- R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Chi-Tsu Yuan
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan
- R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan
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16
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Lavado N, de la Concepción JG, Cintas P, Babiano R. Synthesis of C xN y-rich polycyclic oligomers from primeval monomers in aqueous media. Phys Chem Chem Phys 2022; 24:3632-3646. [PMID: 35103738 DOI: 10.1039/d1cp05204g] [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
A multichannel, non-thermolytic and efficient pathway is described toward the formation of functionalized carbon nitride-like oligomers, starting from readily available cyanamide and glyoxal (in ratios >2), in aqueous media under mild conditions. Such oligomers can be isolated as stable solids that result from structures involving cyanamide self-additions along with structures formally derived from the condensation of cyanamide, dicyandiamide or melamine with glyoxal, leading occasionally to oxygen-containing units. The oligomeric aggregates have masses up to 500 u, as inferred from mass spectra analyses, and their formation can be rationalized in terms of polyadditions of cyanamide (up to 10-mer) and glyoxal. The latter is not only a willing reaction partner, but also promotes facile condensation by enhancing the reactivity of nitrile fragments and inducing a significant lowering of the energy barriers. This mechanistic surmise is also supported by DFT calculations of the early condensation steps. As a result, melamine/triazine-type structures are obtained in aquatic environments under much milder conditions than those usually required by other synthetic procedures. Moreover, our results also help unveil the abiotic processes affording complex organic matter on celestial bodies and early earth.
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Affiliation(s)
- Nieves Lavado
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias, and IACYS-Unidad de Química Verde y Desarrollo Sostenible, Universidad de Extremadura, E-06006 Badajoz, Spain.
| | - Juan García de la Concepción
- Departamento de Astrofísica, Centro de Astrobiología (INTA-CSIC), 28850 Torrejón de Ardoz, Madrid, Spain.,Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias, and IACYS-Unidad de Química Verde y Desarrollo Sostenible, Universidad de Extremadura, E-06006 Badajoz, Spain.
| | - Pedro Cintas
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias, and IACYS-Unidad de Química Verde y Desarrollo Sostenible, Universidad de Extremadura, E-06006 Badajoz, Spain.
| | - Reyes Babiano
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias, and IACYS-Unidad de Química Verde y Desarrollo Sostenible, Universidad de Extremadura, E-06006 Badajoz, Spain.
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17
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Bai J, Yuan G, Chen X, Zhang L, Zhu Y, Wang X, Ren L. Simple Strategy for Scalable Preparation Carbon Dots: RTP, Time-Dependent Fluorescence, and NIR Behaviors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104278. [PMID: 34962091 PMCID: PMC8844479 DOI: 10.1002/advs.202104278] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Indexed: 05/19/2023]
Abstract
Transforming carbon dots (CDs) fluorescent materials into smart materials with complex functions is a topic of great interest to nanoscience. However, designing CDs with regulating fluorescence/phosphorescence that can be visually monitored with the environment changes in real-time remains a challenge. Here, a very simple strategy, one-step solvent-free catalytic assistant strategy, which is low cost, facile, environment-friendly, and high throughput, is put forward. Hydrogen bond is used to manipulate nanostructure of CDs, and the obtained carbon dots (M-CDs) show a series of attractive properties including matrix-free room-temperature phosphorescence, time-dependent fluorescence, and near-infrared emissive characteristics. Different from the traditional aggregation caused quenching or aggregation-induced emission fluorescent materials, M-CDs exhibit unprecedented and unique dispersion induced redshift fluorescence phenomenon, promoting the studies of fluorescence from static to dynamic. The causes of this phenomenon are further analyzed in detail. As a kind of intelligent fluorescent materials, this new designed CDs greatly enrich the basic recognition of CDs by illustrating the relationship between redshift fluorescence behaviors and the dispersion states, and may provide with an opportunity for solid-state fluorescent materials, anti-counterfeiting, cellular imaging, and hopefully many others.
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Affiliation(s)
- Jianliang Bai
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
| | - Guojun Yuan
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
| | - Xu Chen
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
| | - Lu Zhang
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
| | - Yaqing Zhu
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
| | - Xinyu Wang
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
| | - Lili Ren
- School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing211189China
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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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Chen Y, Zhu J, Sheng H, Yu T, Zeng Q. Superior resistance-thermal stability of carbon dots@NaBiF4 nanocomposite: facile synthesis and surface configurations. Dalton Trans 2022; 51:8680-8687. [DOI: 10.1039/d2dt00823h] [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
Carbon dots (CDs), emerging as promising materials for optoelectronic and biomedicine applications, are widely investigated due to their distinct merits of facile preparation, biocompatibility, and environment-friendliness. Here, a unique strategy...
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20
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Ghaffarkhah A, Hosseini E, Kamkar M, Sehat AA, Dordanihaghighi S, Allahbakhsh A, van der Kuur C, Arjmand M. Synthesis, Applications, and Prospects of Graphene Quantum Dots: A Comprehensive Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2102683. [PMID: 34549513 DOI: 10.1002/smll.202102683] [Citation(s) in RCA: 97] [Impact Index Per Article: 48.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 08/12/2021] [Indexed: 05/24/2023]
Abstract
Graphene quantum dot (GQD) is one of the youngest superstars of the carbon family. Since its emergence in 2008, GQD has attracted a great deal of attention due to its unique optoelectrical properties. Non-zero bandgap, the ability to accommodate functional groups and dopants, excellent dispersibility, highly tunable properties, and biocompatibility are among the most important characteristics of GQDs. To date, GQDs have displayed significant momentum in numerous fields such as energy devices, catalysis, sensing, photodynamic and photothermal therapy, drug delivery, and bioimaging. As this field is rapidly evolving, there is a strong need to identify the emerging challenges of GQDs in recent advances, mainly because some novel applications and numerous innovations on the ease of synthesis of GQDs are not systematically reviewed in earlier studies. This feature article provides a comparative and balanced discussion of recent advances in synthesis, properties, and applications of GQDs. Besides, current challenges and future prospects of these emerging carbon-based nanomaterials are also highlighted. The outlook provided in this review points out that the future of GQD research is boundless, particularly if upcoming studies focus on the ease of purification and eco-friendly synthesis along with improving the photoluminescence quantum yield and production yield of GQDs.
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Affiliation(s)
- Ahmadreza Ghaffarkhah
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Ehsan Hosseini
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Milad Kamkar
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Ali Akbari Sehat
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Sara Dordanihaghighi
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Ahmad Allahbakhsh
- Department of Materials and Polymer Engineering, Faculty of Engineering, Hakim Sabzevari University, Sabzevar, Iran
| | - Colin van der Kuur
- ZEN Graphene Solutions, 210-1205 Amber Dr., Thunder Bay, ON, P7B 6M4, Canada
| | - Mohammad Arjmand
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
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21
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Kumar P, Dua S, Kaur R, Kumar M, Bhatt G. A review on advancements in carbon quantum dots and their application in photovoltaics. RSC Adv 2022; 12:4714-4759. [PMID: 35425490 PMCID: PMC8981368 DOI: 10.1039/d1ra08452f] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/23/2022] [Accepted: 01/04/2022] [Indexed: 02/05/2023] Open
Abstract
Carbon quantum dots are a new frontier in the field of fluorescent nanomaterials, and they exhibit fascinating properties such as biocompatibility, low toxicity, eco-friendliness, good water solubility and photostability. In addition, the synthesis of these nanoparticles is facile, rapid, and satisfies green chemistry principles. CQDs have easily tunable optical properties and have found applications in bioimaging, nanomedicine, drug delivery, solar cells, light-emitting diodes, photocatalysis, electrocatalysis and other related areas. This article systematically reviews carbon quantum dot structure, their synthesis techniques, recent advancements, the effects of doping and surface engineering on their optical properties, and related photoluminescence models in detail. The challenges associated with these nanomaterials and their prospects are discussed, and special emphasis has been placed on the application of carbon quantum dots in enhancing the performance of photovoltaics and white light-emitting diodes. This review puts forth the in-depth understanding of the fundamentals of carbon quantum dots(CQDs), recent advancements in the field including a thorough discussion on different roles of CQDs to enhance the performance of solar cells and white-LEDs.![]()
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Affiliation(s)
- Pawan Kumar
- Department of Electronic Science, South Campus University of Delhi, New Delhi-110021, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
| | - Shweta Dua
- Bhaskarcaharya College of Applied Sciences, University of Delhi, New Delhi-110075, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
| | - Ravinder Kaur
- Deen Dayal Upadhyaya College, University of Delhi, New Delhi-110075, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
| | - Mahesh Kumar
- CSIR-National Physical Laboratory (NPL), New Delhi-110012, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
| | - Geeta Bhatt
- Deen Dayal Upadhyaya College, University of Delhi, New Delhi-110075, India
- Non-Collegiate Women's Education Board, University of Delhi, New Delhi-110007, India
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22
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Wang Z, Jiang N, Liu M, Zhang R, Huang F, Chen D. Bright Electroluminescent White-Light-Emitting Diodes Based on Carbon Dots with Tunable Correlated Color Temperature Enabled by Aggregation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2104551. [PMID: 34729915 DOI: 10.1002/smll.202104551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/03/2021] [Indexed: 05/09/2023]
Abstract
Carbon dots (CDs) as one of the most promising carbon-based nanomaterials are inspiring extensive research in optoelectronic applications. White-light-emitting diodes (WLEDs) with tunable correlated color temperatures (CCTs) are crucial for applications in white lighting. However, the development of high-performance CDs-based electroluminescent WLEDs, especially those with adjustable CCTs, remains a challenge. Herein, white CDs-LEDs with CCTs from 2863 to 11 240 K are successfully demonstrated by utilizing aggregation-induced emission red-shifting and broadening of CDs. As a result, a series of warm white, pure white, and cold white CDs-LEDs are realized with adjustable emissions in sequence along the blackbody radiation curve. These CDs-LEDs reach maximum brightness and external quantum efficiency up to 1414-4917 cd m-2 and 0.08-0.87%, respectively, which is among the best performances of white CDs-LEDs. To the best of the authors' knowledge, this is the first time that CCT-tunable white electroluminescent CDs-LEDs are demonstrated through controlling the aggregation degrees of CDs.
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Affiliation(s)
- Zhibin Wang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou, 350117, China
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou, 350117, China
| | - Naizhong Jiang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
| | - Menglong Liu
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
| | - Ruidan Zhang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou, 350117, China
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou, 350117, China
| | - Feng Huang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou, 350117, China
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou, 350117, China
| | - Daqin Chen
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou, 350117, China
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou, 350117, China
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
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23
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Xu X, Mo L, Li Y, Pan X, Hu G, Lei B, Zhang X, Zheng M, Zhuang J, Liu Y, Hu C. Construction of Carbon Dots with Color-Tunable Aggregation-Induced Emission by Nitrogen-Induced Intramolecular Charge Transfer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2104872. [PMID: 34647365 DOI: 10.1002/adma.202104872] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/13/2021] [Indexed: 05/14/2023]
Abstract
As one of the most promising fluorescent nanomaterials, the fluorescence of carbon dots (CDs) in solution is extensively studied. Nevertheless, the synthesis of multicolor solid-state fluorescence (SSF) CDs is rarely reported. Herein, CDs with multicolor aggregation-induced emission are prepared using amine molecules, all of them exhibiting dual fluorescence emission at 480 nm (Em-1) and 580-620 nm (Em-2), which is related to the SS bonds of dithiosalicylic acid and the conjugated structure attached to CO/CN bonds, respectively. As a strong electron-withdrawing group, the increase of CN content makes dual-fluorescent groups on the surface of CDs produce push and pull electrons, which determines intramolecular charge transfer (ICT) between the double emission. With the increase in CN content from 35.6% to 58.4%, the ICT efficiency increases from 8.71% to 45.94%, changing the fluorescence of CDs from green to red. The increase of ICT efficiency causes fluorescence quantum yield enhancement by nearly five times and redshift of the fluorescence peak. Finally, based on the multicolor luminescence properties induced by the aggregation of CDs, pattern encryption and white-LED devices are realized. Based on the fat solubility and strong ultraviolet absorption characteristics of CDs, fingerprint detection and leaf anti-UV hazards are applied.
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Affiliation(s)
- Xiaokai Xu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Luoqi Mo
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Yadong Li
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Xiaoqin Pan
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Guangqi Hu
- College of Photoelectric Engineering, Guangdong Polytechnic Normal University, Guangzhou, 510665, China
| | - Bingfu Lei
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Xuejie Zhang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Mingtao Zheng
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Jianle Zhuang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Yingliang Liu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Chaofan Hu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education/Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
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24
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Moon BJ, Kim SJ, Lee A, Oh Y, Lee SK, Lee SH, Kim TW, Hong BH, Bae S. Structure-controllable growth of nitrogenated graphene quantum dots via solvent catalysis for selective C-N bond activation. Nat Commun 2021; 12:5879. [PMID: 34620858 PMCID: PMC8497556 DOI: 10.1038/s41467-021-26122-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 09/10/2021] [Indexed: 11/10/2022] Open
Abstract
Photophysical and photochemical properties of graphene quantum dots (GQDs) strongly depend on their morphological and chemical features. However, systematic and uniform manipulation of the chemical structures of GQDs remains challenging due to the difficulty in simultaneous control of competitive reactions, i.e., growth and doping, and the complicated post-purification processes. Here, we report an efficient and scalable production of chemically tailored N-doped GQDs (NGs) with high uniformity and crystallinity via a simple one-step solvent catalytic reaction for the thermolytic self-assembly of molecular precursors. We find that the graphitization of N-containing precursors during the formation of NGs can be modulated by intermolecular interaction with solvent molecules, the mechanism of wh ich is evidenced by theoretical calculations and various spectroscopic analyses. Given with the excellent visible-light photoresponse and photocatalytic activity of NGs, it is expected that the proposed approach will promote the practical utilization of GQDs for various applications in the near future. Photophysical and photochemical features of graphene quantum dots (GQDs) strongly depend on their chemical nature that remains challenging to be controlled in a systematic and uniform manner. Here the authors report an efficient solvent-catalyst-aided growth of chemically tailored N-doped GQDs.
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Affiliation(s)
- Byung Joon Moon
- Functional Composite Materials Research Center, Korea Institute of Science and Technology, Wanju-gun, Jeollabuk-do, 55324, Republic of Korea.,Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sang Jin Kim
- Functional Composite Materials Research Center, Korea Institute of Science and Technology, Wanju-gun, Jeollabuk-do, 55324, Republic of Korea
| | - Aram Lee
- Functional Composite Materials Research Center, Korea Institute of Science and Technology, Wanju-gun, Jeollabuk-do, 55324, Republic of Korea
| | - Yelin Oh
- Functional Composite Materials Research Center, Korea Institute of Science and Technology, Wanju-gun, Jeollabuk-do, 55324, Republic of Korea
| | - Seoung-Ki Lee
- School of Materials Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Sang Hyun Lee
- The School of Chemical Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Tae-Wook Kim
- Department of Flexible and Printable Electronics, Jeonbuk National University, Jeonju-si, Jeollabuk-do, 54896, Republic of Korea
| | - Byung Hee Hong
- Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea.,Graphene Research Center, Advanced Institute of Convergence Technology, Seoul National University, Suwon-si, Gyeonggi-do, 16229, Republic of Korea
| | - Sukang Bae
- Functional Composite Materials Research Center, Korea Institute of Science and Technology, Wanju-gun, Jeollabuk-do, 55324, Republic of Korea.
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25
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Cheng R, Xiang Y, Guo R, Li L, Zou G, Fu C, Hou H, Ji X. Structure and Interface Modification of Carbon Dots for Electrochemical Energy Application. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102091. [PMID: 34318998 DOI: 10.1002/smll.202102091] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Indexed: 05/15/2023]
Abstract
Carbon dots (CDs) as new nanomaterials have attracted much attention in recent years due to their unique characteristics. Notably, structure and interface modification (carbon core, edge, defects, and functional groups) of CDs have been considered as valid methods to regulate their properties, which contain electron transfer effect, electrochemical activity, fluorescence luminescent, and so on. Additionally, CDs with ultrasmall size, excellent dispersibility, high specific surface area, and abundant functional groups can guarantee positive and extraordinary effects in electrical energy storage and conversion. Therefore, CDs are used to couple with other materials by constructing a special interface structure to enhance their properties. Here, diverse structural and interfacial modifications of CDs with various heteroatoms and synergy effects are systematically analyzed. And not only several main syntheses of CDs-based composites (CDs/X) are summarized but also the merit and demerit of CDs/X in electrical energy storage are discussed. Finally, the applications of CDs/X in energy storage devices (supercapacitors, batteries) and electrocatalysts for practical applications are discussed. This review mainly provides a comprehensive summary and future prospect for synthesis, modification, and electrochemical applications of CDs.
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Affiliation(s)
- Ruiqi Cheng
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yinger Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Ruiting Guo
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Lin Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Guoqiang Zou
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Chaopeng Fu
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Hongshuai Hou
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Xiaobo Ji
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
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26
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Yang L, De-Jager CR, Adsetts JR, Chu K, Liu K, Zhang C, Ding Z. Analyzing Near-Infrared Electrochemiluminescence of Graphene Quantum Dots in Aqueous Media. Anal Chem 2021; 93:12409-12416. [PMID: 34464100 DOI: 10.1021/acs.analchem.1c02441] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Mechanisms of emissions, especially electrochemiluminescence (ECL), for graphene quantum dots (GQDs) are poorly understood, which makes near-infrared (NIR)-emitting GQDs difficult to create. To explore this poorly understood NIR ECL, two GQDs, nitrogen-doped GQDs (GQD-1) and nitrogen- and sulfur-doped ones (GQD-2), were prepared by a simple one-step solvothermal reaction with similar core structures but different surface states. The GQDs were analyzed by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy. Photoluminescence results, with a comparable quantum efficiency of 13% to strong luminophores in aqueous media, suggested a mechanism that the emission mainly depends on the core structure while slightly adjusted by the heteroatom doping. ECL of GQD-2 dispersed in aqueous media with K2S2O8 as the coreactant was measured by means of ECL-voltage curves and ECL spectroscopy, demonstrating strong NIR emissions between 680 and 870 nm, with a high ECL efficiency of 13% relative to that of the Ru(bpy)32+/K2S2O8 system. Interestingly, ECL is generated by surface excited states emitting light at a much longer wavelength in the NIR region. The easily prepared GQD-2 has several advantages such as low cost and quite strong NIR-ECL in aqueous media, with which wide applications in biodetection are anticipated.
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Affiliation(s)
- Liuqing Yang
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Cindy Rae De-Jager
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Jonathan Ralph Adsetts
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Kenneth Chu
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Kehan Liu
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Congyang Zhang
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Zhifeng Ding
- Department of Chemistry and Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
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27
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Jaymand M, Davatgaran Taghipour Y, Rezaei A, Derakhshankhah H, Foad Abazari M, Samadian H, Hamblin MR. Radiolabeled carbon-based nanostructures: New radiopharmaceuticals for cancer therapy? Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213974] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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28
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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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29
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Bai J, Yuan G, Huang Z, Zhang L, Zhu Y, Wang X, Ren L. Regulation of fluorescence emission of carbon dots via hydrogen bonding assembly. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108500] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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30
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Qin S, Yu X, Xu L. Amplified fluorescence detection and adsorption of Au 3+ by the fluorescent melamine formaldehyde microspheres incorporated with N and S co-doped carbon dots. JOURNAL OF HAZARDOUS MATERIALS 2021; 405:123978. [PMID: 33221074 DOI: 10.1016/j.jhazmat.2020.123978] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 06/11/2023]
Abstract
Gold is one of the potential toxic heavy metals. In the present study, Au3+ was detected and removed by newly-designed fluorescent microspheres (MF-CDs), i.e. melamine formaldehyde microspheres incorporated with N and S co-doped carbon dots (N,S-CDs). N,S-CDs played the role as sensing unites and melamine formaldehyde microspheres (MF) as carriers. When MF-CDs were attempted as the fluorescence probe, enhanced fluorescence sensing performance towards Au3+ was achieved with wider linear range (0.05-2 μM) and lower limit of detection (31 nM) compared to the N,S-CDs probe. In addition, when MF-CDs were used as the adsorbent, the adsorption capacity towards Au3+ reached up to 1 mmol g-1, about ten times more than that of MF. Moreover, the Au3+ adsorbed on the MF-CDs could be in-situ transferred to gold nanoparticle (AuNP), forming the immobilized nanocatalyst, i.e. MF-CDs-AuNP, which could further assist the reduction of 4-nitrophenol with acceptable reusability. This study paved an avenue to design the multifunctional materials for simultaneous detection, removal and recycling of environmental concerned pollutants.
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Affiliation(s)
- Si Qin
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xu Yu
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Li Xu
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China.
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31
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Liu J, Li R, Yang B. Carbon Dots: A New Type of Carbon-Based Nanomaterial with Wide Applications. ACS CENTRAL SCIENCE 2020; 6:2179-2195. [PMID: 33376780 PMCID: PMC7760469 DOI: 10.1021/acscentsci.0c01306] [Citation(s) in RCA: 499] [Impact Index Per Article: 124.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Indexed: 05/07/2023]
Abstract
Carbon dots (CDs), as a new type of carbon-based nanomaterial, have attracted broad research interest for years, because of their diverse physicochemical properties and favorable attributes like good biocompatibility, unique optical properties, low cost, ecofriendliness, abundant functional groups (e.g., amino, hydroxyl, carboxyl), high stability, and electron mobility. In this Outlook, we comprehensively summarize the classification of CDs based on the analysis of their formation mechanism, micro-/nanostructure and property features, and describe their synthetic methods and optical properties including strong absorption, photoluminescence, and phosphorescence. Furthermore, the recent significant advances in diverse applications, including optical (sensor, anticounterfeiting), energy (light-emitting diodes, catalysis, photovoltaics, supercapacitors), and promising biomedicine, are systematically highlighted. Finally, we envisage the key issues to be challenged, future research directions, and perspectives to show a full picture of CDs-based materials.
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Affiliation(s)
- Junjun Liu
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Rui Li
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Bai Yang
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
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32
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Tiwari P, Kaur N, Sharma V, Mobin SM. A spectroscopic investigation of Carbon dots and its reduced state towards fluorescence performance. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112847] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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33
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Han S, Ni J, Han Y, Ge M, Zhang C, Jiang G, Peng Z, Cao J, Li S. Biomass-Based Polymer Nanoparticles With Aggregation-Induced Fluorescence Emission for Cell Imaging and Detection of Fe 3+ Ions. Front Chem 2020; 8:563. [PMID: 32719775 PMCID: PMC7350900 DOI: 10.3389/fchem.2020.00563] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/02/2020] [Indexed: 11/13/2022] Open
Abstract
Polymeric nanoparticles, which show aggregation-induced luminescence emission, have been successfully prepared from larch bark, a natural renewable biomass resource, in a simple, rapid ultrasonic fragmentation method. The structure, element, particle size and molecular weight distribution of larch bark extracts (LBE) were studied by FTIR, XPS, TEM, XRD and linear mode mass spectrometry, respectively. LBE was found containing large numbers of aromatic rings, displaying an average particle size of about 4.5 nm and mainly presenting tetramers proanthocyanidins. High concentration, poor solvent, low temperature and high viscosity restricted the rotation and vibration of the aromatic rings in LBE, leading to the formation of J-aggregates and enhancing the aggregation-induced fluorescence emission. LBE possessed good resistance to photobleaching under ultraviolet light (200 mW/m2). Cytotoxicity experiments for 24 h and flow cytometry experiments for 3 days proved that even the concentrations of LBE as high as 1 mg/mL displayed non-toxic to MG-63 cells. Therefore, LBE could be employed for MG-63 cell imaging, with similar nuclear staining to the DAPI. The effects of different metal ions on the fluorescence emission intensity of LBE were analyzed and exhibited that Fe3+ owned obvious fluorescence quenching effect on LBE, while other metal ions possessed little or weak effect. Furthermore, the limit of detection (LOD) of Fe3+ was evaluated as 0.17 μM.
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Affiliation(s)
- Shiyan Han
- Postdoctoral Station of Mechanical Engineering, Northeast Forestry University, Harbin, China.,Key Laboratory of Bio-Based Material Science and Technology (Northeast Forestry University), Ministry of Education, Harbin, China
| | - Jiaxin Ni
- Key Laboratory of Bio-Based Material Science and Technology (Northeast Forestry University), Ministry of Education, Harbin, China
| | - Youqi Han
- Key Laboratory of Bio-Based Material Science and Technology (Northeast Forestry University), Ministry of Education, Harbin, China
| | - Min Ge
- Key Laboratory of Bio-Based Material Science and Technology (Northeast Forestry University), Ministry of Education, Harbin, China
| | - Chunlei Zhang
- Key Laboratory of Bio-Based Material Science and Technology (Northeast Forestry University), Ministry of Education, Harbin, China
| | - Guiquan Jiang
- Key Laboratory of Wooden Materials Science and Engineering of Jilin Province, Beihua University, Jilin, China
| | - Zhibin Peng
- Department of Orthopedic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jun Cao
- Postdoctoral Station of Mechanical Engineering, Northeast Forestry University, Harbin, China
| | - Shujun Li
- Key Laboratory of Bio-Based Material Science and Technology (Northeast Forestry University), Ministry of Education, Harbin, China
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34
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Hu G, Xu X, Lei B, Zhuang J, Zhang X, Zhang H, Hu C, Liu X, He Y, Liu Y. Self-formed C-dot-based 2D polysiloxane with high photoluminescence quantum yield and stability. NANOSCALE 2020; 12:10771-10780. [PMID: 32391838 DOI: 10.1039/d0nr00743a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
C-Dots and composites based on them face the challenges of poor stability, especially under photo-radiation, and low solid-state photoluminescence quantum yields (PLQYs), which hinder their application in optical devices. Herein, a novel 2-dimensional hybrid material of polysiloxane embedded with Si-doped carbon dots (P-E-Si-CDs) was synthesized by a self-assembly approach, and the hybrid composite exhibited broadband blue-green fluorescence emission, outstanding photostability, high thermal stability, and a high PLQY of 82.8%. Moreover, the dual fluorescent emissions were demonstrated the creation of two closed-loop fluorophores. Using the as-prepared hybrid fluorescent material, fabricated light-emitting diodes (LEDs) based on UV and blue-emitting LED chips present safe warm white light emission and adjustable white emission with a high color rendering index of up to 91, respectively. This work provides a novel strategy for the design and realization of Si-CD-based hybrid composites, thus promising their prospective use commercially in LED lighting.
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Affiliation(s)
- Guangqi Hu
- School of Photoelectric Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, China.
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35
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He P, Shi Y, Meng T, Yuan T, Li Y, Li X, Zhang Y, Fan L, Yang S. Recent advances in white light-emitting diodes of carbon quantum dots. NANOSCALE 2020; 12:4826-4832. [PMID: 32065190 DOI: 10.1039/c9nr10958g] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Carbon quantum dots (CQDs) have shown great potential in optoelectronic applications. Very recently, CQDs have attracted much attention in white-emitting diodes (WLEDs) for lighting due to their characteristic broad emission, tunable fluorescence emission and high thermal stability. This mini review updates the latest research in the design of high-performance WLEDs with different correlated color temperatures by tuning the red component using red emissive CQDs and single-component white emissive CQDs (SCWE-CQDs). The prospects for the development of CQD based WLEDs with higher efficiency and color quality will be discussed.
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Affiliation(s)
- Ping He
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, China.
| | - Yuxin Shi
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, China.
| | - Ting Meng
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, China.
| | - Ting Yuan
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, China.
| | - Yunchao Li
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, China.
| | - Xiaohong Li
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, China.
| | - Yang Zhang
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, China.
| | - Louzhen Fan
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, China.
| | - Shihe Yang
- Guangdong Key Lab of Nano-Micro Material Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen 518055, China.
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36
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Hu G, Sun Y, Zhuang J, Zhang X, Zhang H, Zheng M, Xiao Y, Liang Y, Dong H, Hu H, Lei B, Hu C, Liu Y. Enhancement of Fluorescence Emission for Tricolor Quantum Dots Assembled in Polysiloxane toward Solar Spectrum-Simulated White Light-Emitting Devices. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1905266. [PMID: 31782905 DOI: 10.1002/smll.201905266] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 11/08/2019] [Indexed: 06/10/2023]
Abstract
Commercial white light-emitting diodes (LEDs) have the undesirable characteristics of blue-rich emission and low color rendering index (CRI), while the constituent quantum dots (QDs) suffer from aggregation-induced fluorescence quenching and poor stability. Herein, a strategy is developed to assemble tricolor QDs into a polysiloxane matrix using a polymer-mediated hybrid approach whereby the hybrid composite exhibits a significant enhancement of aggregation-dispersed emission, outstanding photostability, high thermal stability, and outstanding fluorescence recovery. Using the as-prepared hybrid fluorescent materials, the fabricated LEDs exhibit solar spectrum-simulated emission with adjustable Commission Internationale de L'Eclairage coordinates, correlated color temperature, and a recorded CRI of 97. Furthermore, they present no ultraviolet emission and weak blue emission, thus indicating an ideal healthy and high-CRI white LED lighting source.
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Affiliation(s)
- Guangqi Hu
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Yuqiong Sun
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Jianle Zhuang
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Xuejie Zhang
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Haoran Zhang
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Mingtao Zheng
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Yong Xiao
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Yeru Liang
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Hanwu Dong
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Hang Hu
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Bingfu Lei
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Chaofan Hu
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Yingliang Liu
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
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37
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Geng B, Wang X, Li P, Shen W, Qin H, Fang F, Yin L, Shen L, Pan D. Multifunctional Carbon Dots for Trace Water Detection, White LEDs, and Bioimaging. ChemistrySelect 2019. [DOI: 10.1002/slct.201904133] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bijiang Geng
- School of Environmental and Chemical EngineeringShanghai University Shanghai 200444 P.R. China
| | - Xulong Wang
- School of Environmental and Chemical EngineeringShanghai University Shanghai 200444 P.R. China
| | - Ping Li
- School of Life SciencesShanghai University Shanghai 200444 P.R. China
| | - Wenwen Shen
- School of Environmental and Chemical EngineeringShanghai University Shanghai 200444 P.R. China
| | - Hua Qin
- School of Environmental and Chemical EngineeringShanghai University Shanghai 200444 P.R. China
| | - Fuling Fang
- School of Environmental and Chemical EngineeringShanghai University Shanghai 200444 P.R. China
| | - Luqiao Yin
- Key Laboratory of Advanced Display and System ApplicationsShanghai University Shanghai 200072 P. R. China
| | - Longxiang Shen
- Department of Orthopedic SurgeryShanghai Jiao Tong University affiliated Sixth People's Hospital Shanghai 200233 P.R. China
| | - Dengyu Pan
- School of Environmental and Chemical EngineeringShanghai University Shanghai 200444 P.R. China
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38
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Ji Y, Zhang H, Zhang C, Quan Z, Huang M, Wang L. Fluorescent and Mechanical Properties of Silicon Quantum Dots Modified Sodium Alginate-Carboxymethylcellulose Sodium Nanocomposite Bio-Polymer Films. Polymers (Basel) 2019; 11:polym11091476. [PMID: 31505896 PMCID: PMC6780071 DOI: 10.3390/polym11091476] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 08/27/2019] [Accepted: 09/02/2019] [Indexed: 12/27/2022] Open
Abstract
Highly luminescent silicon quantum dots (SiQDs) were prepared via one-pot hydrothermal route. Furthermore, the optimal synthetic conditions, dependence of the emission spectrum on the excitation wavelength and fluorescent stability of SiQDs were investigated by fluorescence spectroscopy. SiQDs exhibited bright blue fluorescence, and photoluminescence (PL) lifetime is 10.8 ns when excited at 325 nm. The small-sized SiQDs (~3.3 nm) possessed uniform particle size, crystal lattice spacing of 0.31 nm and silicon (111), (220) crystal planes. Luminescent SiQDs/sodium alginate (SA)-carboxymethylcellulose sodium (CMC) nanocomposite bio-polymer films were successfully fabricated by incorporating SiQDs into the SA-CMC matrix. Meanwhile, SiQDs not only impart strong fluorescence to the polymer, but also make the composite films have favorable toughness.
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Affiliation(s)
- Yali Ji
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China.
- Ministry of Education Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China.
| | - Huimin Zhang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China.
| | - Canfu Zhang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China.
| | - Zhiyi Quan
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China.
| | - Min Huang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China.
| | - Lili Wang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China.
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Zhao X, Zhang Y, Zhao X, Wang X, Zhao Y, Tan H, Zhu H, Ho W, Sun H, Li Y. Urea and Melamine Formaldehyde Resin-Derived Tubular g-C 3N 4 with Highly Efficient Photocatalytic Performance. ACS APPLIED MATERIALS & INTERFACES 2019; 11:27934-27943. [PMID: 31319023 DOI: 10.1021/acsami.9b08483] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Construction of various nanostructure g-C3N4, especially those with a tubular structure, is gaining considerable research interest because of their large specific surface area, high carrier transport efficiency, and excellent mass transfer. In this study, a novel multistage tubular g-C3N4 (TCN) has been prepared by the copolymerization of melamine formaldehyde (MF) resin with urea. With the introduction of MF resin, the electrostructure of TCN and its hydrophilicity property have been obviously ameliorated, thereby enhancing its visible-light absorption and improving the interface contact between TCN and water. Moreover, photocurrent response and electrochemical impedance spectra indicate that the special multistage tubular structure facilitates the spatial charge transfer and photogenerated carrier separation. Thus, the as-prepared TCN exhibits excellent photoactivities under visible-light irradiation. Among the samples, TCN-0.1 shows the best performance. Its hydrogen evolution rate is approximately 7505 μmol·g-1·h-1, which is 6.05 times greater than that of g-C3N4 (prepared by urea at 600 °C), and its apparent quantum efficiency is nearly 19.2% at 400 nm. In addition, TCN is also endowed with outstanding visible-light performance and durability for the degradation of tetracycline and methyl orange. This work might provide a significant inspiration for the design of new, highly efficient g-C3N4-based materials and further deepen our understanding of the preparation of tubular photocatalysts.
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Affiliation(s)
- XinYu Zhao
- Key Laboratory of Polyoxometalate Science of the Ministry of Education, Faculty of Chemistry , Northeast Normal University , Changchun , 130024 , China
| | - Yi Zhang
- Key Laboratory of Polyoxometalate Science of the Ministry of Education, Faculty of Chemistry , Northeast Normal University , Changchun , 130024 , China
| | - Xia Zhao
- Key Laboratory of Polyoxometalate Science of the Ministry of Education, Faculty of Chemistry , Northeast Normal University , Changchun , 130024 , China
| | - Xin Wang
- Key Laboratory of Polyoxometalate Science of the Ministry of Education, Faculty of Chemistry , Northeast Normal University , Changchun , 130024 , China
| | - Yingnan Zhao
- Key Laboratory of Polyoxometalate Science of the Ministry of Education, Faculty of Chemistry , Northeast Normal University , Changchun , 130024 , China
| | - Huaqiao Tan
- Key Laboratory of Polyoxometalate Science of the Ministry of Education, Faculty of Chemistry , Northeast Normal University , Changchun , 130024 , China
| | - Haotian Zhu
- Key Laboratory of Polyoxometalate Science of the Ministry of Education, Faculty of Chemistry , Northeast Normal University , Changchun , 130024 , China
| | - Wingkei Ho
- Department of Science and Environmental Studies and State Key Laboratory in Marine Pollution , The Education Universi-ty of Hong Kong , Tai Po, N.T. , Hong Kong 999077 , P. R. China
| | - Huiying Sun
- Key Laboratory of Polyoxometalate Science of the Ministry of Education, Faculty of Chemistry , Northeast Normal University , Changchun , 130024 , China
| | - Yangguang Li
- Key Laboratory of Polyoxometalate Science of the Ministry of Education, Faculty of Chemistry , Northeast Normal University , Changchun , 130024 , China
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40
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de Menezes FD, Dos Reis SRR, Pinto SR, Portilho FL, do Vale Chaves E Mello F, Helal-Neto E, da Silva de Barros AO, Alencar LMR, de Menezes AS, Dos Santos CC, Saraiva-Souza A, Perini JA, Machado DE, Felzenswalb I, Araujo-Lima CF, Sukhanova A, Nabiev I, Santos-Oliveira R. Graphene quantum dots unraveling: Green synthesis, characterization, radiolabeling with 99mTc, in vivo behavior and mutagenicity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:405-414. [PMID: 31147011 DOI: 10.1016/j.msec.2019.04.058] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 04/09/2019] [Accepted: 04/20/2019] [Indexed: 01/18/2023]
Abstract
Graphene is one of the crystalline forms of carbon, along with diamond, graphite, carbon nanotubes, and fullerenes, and is considered as a revolutionary and innovating product. The use of a graphene-based nanolabels is one of the latest and most prominent application of graphene, especially in the field of diagnosis and, recently, in loco radiotherapy when coupled with radioisotopes. However, its biological behavior and mutagenicity in different cell or animal models, as well as the in vivo functional activities, are still unrevealed. In this study we have developed by a green route of synthesizing graphene quantum dots (GQDs) and characterized them. We have also developed a methodology for direct radiolabeling of GQDs with radioisotopes.Finally; we have evaluated in vivo biological behavior of GQDs using two different mice models and tested in vitro mutagenicity of GQDs. The results have shown that GQDs were formed with a size range of 160-280 nm, which was confirmed by DRX and Raman spectroscopy analysis, corroborating that the green synthesis is an alternative, environmentally friendly way to produce graphene. The radiolabeling test has shown that stable radiolabeled GQDs can be produced with a high yield (>90%). The in vivo test has demonstrated a ubiquitous behavior when administered to healthy animals, with a high uptake by liver (>26%) and small intestine (>25%). Otherwise, in an inflammation/VEGF hyperexpression animal model (endometriosis), a very peculiar behavior of GQDs was observed, with a high uptake by kidneys (over 85%). The mutagenicity test has demonstrated A:T to G:C substitutions suggesting that GQDs exhibits mutagenic activity.
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Affiliation(s)
| | - Sara Rhaissa Rezende Dos Reis
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Rua Helio de Almeida 75, Ilha do Fundão, CEP 21941-614 Rio de Janeiro, Brazil
| | - Suyene Rocha Pinto
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Rua Helio de Almeida 75, Ilha do Fundão, CEP 21941-614 Rio de Janeiro, Brazil
| | - Filipe Leal Portilho
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Rua Helio de Almeida 75, Ilha do Fundão, CEP 21941-614 Rio de Janeiro, Brazil
| | - Francisco do Vale Chaves E Mello
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Rua Helio de Almeida 75, Ilha do Fundão, CEP 21941-614 Rio de Janeiro, Brazil
| | - Edward Helal-Neto
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Rua Helio de Almeida 75, Ilha do Fundão, CEP 21941-614 Rio de Janeiro, Brazil
| | - Aline Oliveira da Silva de Barros
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Rua Helio de Almeida 75, Ilha do Fundão, CEP 21941-614 Rio de Janeiro, Brazil
| | - Luciana Magalhães Rebêlo Alencar
- Federal University of Maranhão, Department of Physics, Avenida dos Portugueses 500, Vila Bacanga, CEP 65080-805 São Luís, Maranhão, Brazil
| | - Alan Silva de Menezes
- Federal University of Maranhão, Department of Physics, Avenida dos Portugueses 500, Vila Bacanga, CEP 65080-805 São Luís, Maranhão, Brazil
| | - Clenilton Costa Dos Santos
- Federal University of Maranhão, Department of Physics, Avenida dos Portugueses 500, Vila Bacanga, CEP 65080-805 São Luís, Maranhão, Brazil
| | - Aldilene Saraiva-Souza
- Federal University of Piaui, Department of Physics, Bairro Ininga, CEP: 64.049-550 Teresina, Piaui, Brazil
| | - Jamila Alessandra Perini
- Research Laboratory of Pharmaceutical Sciences, Zona Oeste State University, Avenida Manuel Caldeira de Alvarenga 1.203, CEP 23070-200 Campo Grande, Rio de Janeiro, Brazil
| | - Daniel Escorsim Machado
- Research Laboratory of Pharmaceutical Sciences, Zona Oeste State University, Avenida Manuel Caldeira de Alvarenga 1.203, CEP 23070-200 Campo Grande, Rio de Janeiro, Brazil
| | - Israel Felzenswalb
- Department of Biophysics and Biometry, Rio de Janeiro State University, Boulevard 28 de Setembro, 87 Fundos, 4 ° Andar, CEP 20551-030 Rio de Janeiro, RJ, Brazil
| | - Carlos Fernando Araujo-Lima
- Department of Biophysics and Biometry, Rio de Janeiro State University, Boulevard 28 de Setembro, 87 Fundos, 4 ° Andar, CEP 20551-030 Rio de Janeiro, RJ, Brazil
| | - Alyona Sukhanova
- Laboratoire de Recherche en Nanosciences (LRN-EA4682), Université de Reims Champagne-Ardenne, 51, rue Cognacq Jay, 51096 Reims, France; Laboratory of Nano-Bioengineering, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), KashirskoyeShosse 31, 115409 Moscow, Russian Federation
| | - Igor Nabiev
- Laboratoire de Recherche en Nanosciences (LRN-EA4682), Université de Reims Champagne-Ardenne, 51, rue Cognacq Jay, 51096 Reims, France; Laboratory of Nano-Bioengineering, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), KashirskoyeShosse 31, 115409 Moscow, Russian Federation
| | - Ralph Santos-Oliveira
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Rua Helio de Almeida 75, Ilha do Fundão, CEP 21941-614 Rio de Janeiro, Brazil; Zona Oeste State University, Laboratory of Radiopharmacy and Nanoradiopharmaceuticals, Campo Grande, Rio de Janeiro, Brazil.
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41
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Meng T, Yuan T, Li X, Li Y, Fan L, Yang S. Ultrabroad-band, red sufficient, solid white emission from carbon quantum dot aggregation for single component warm white light emitting diodes with a 91 high color rendering index. Chem Commun (Camb) 2019; 55:6531-6534. [DOI: 10.1039/c9cc01794a] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An ultrabroad-band solid white emission from carbon quantum dot aggregation with a full width at half maximum over 200 nm throughout the entire visible light window and, even better, with a sufficient red component is first reported.
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Affiliation(s)
- Ting Meng
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Ting Yuan
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Xiaohong Li
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Yunchao Li
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Louzhen Fan
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Shihe Yang
- Guangdong Key Lab of Nano-Micro Material Research
- School of Chemical Biology and Biotechnology
- Shenzhen Graduate School
- Peking University
- Shenzhen
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42
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Kim M, Kang PW, Park S, Jeon DY, Lee H. Enhancing the luminescence of carbon nanodots in films by tailoring the functional groups through alkylamine-functionalization and reduction. Phys Chem Chem Phys 2019; 21:26095-26101. [DOI: 10.1039/c9cp05241k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The luminescence of carbon nanodots in films was enhanced by tailoring functional groups because the energy levels could be significantly simplified.
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Affiliation(s)
- Minsu Kim
- Department of Chemical and Biomolecular Engineering
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- Republic of Korea
| | - Phil Woong Kang
- Department of Chemical and Biomolecular Engineering
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- Republic of Korea
| | - Sunjoong Park
- Department of Materials Science and Engineering
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- Republic of Korea
| | - Duk Young Jeon
- Department of Materials Science and Engineering
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- Republic of Korea
| | - Hyunjoo Lee
- Department of Chemical and Biomolecular Engineering
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- Republic of Korea
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