1
|
Wang L, Liu G, Wang M, Song Y, Jing Q, Zhao H. Vacuum-Boosting Precise Synthetic Control of Highly Bright Solid-State Carbon Quantum Dots Enables Efficient Light Emitting Diodes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2401812. [PMID: 38816772 DOI: 10.1002/smll.202401812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/16/2024] [Indexed: 06/01/2024]
Abstract
Carbon quantum dots (C-dots) have emerged as efficient fluorescent materials for solid-state lighting devices. However, it is still a challenge to obtain highly bright solid-state C-dots because of the aggregation caused quenching. Compared to the encapsulation of as-prepared C-dots in matrices, one-step preparation of C-dots/matrix complex is a good method to obtain highly bright solid-state C-dots, which is still quite limited. Here, an efficient and controllable vacuum-boosting gradient heating approach is demonstrated for in situ synthesis of a stable and efficient C-dots/matrix complex. The addition of boric acid strongly bonded with urea, promoting the selectivity of the reaction between citric acid and urea. Benefiting from the high reaction selectivity and spatial-confinement growth of C-dots in porous matrices, in situ synthesize C-dots bonded can synthesized dominantly with a crosslinked octa-cyclic compound, biuret and cyanuric acid (triuret). The obtained C-dots/matrix complex exhibited bright green emission with a quantum yield as high as 90% and excellent thermal and photo stability. As a proof-of-concept, the as-prepared C-dots are used for the fabrication of white light-emitting diodes (LEDs) with a color rendering index of 84 and luminous efficiency of 88.14 lm W-1, showing great potential for applications in LEDs.
Collapse
Affiliation(s)
- Lihua Wang
- College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, P. R. China
| | - Guiju Liu
- College of Physics, Yantai University, Yantai, 264005, P. R. China
| | - Maorong Wang
- College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, P. R. China
| | - Yang Song
- College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, P. R. China
| | - Qiang Jing
- College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, P. R. China
| | - Haiguang Zhao
- College of Physics, University Industry Joint Center for Ocean Observation and Broadband Communication, College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, P. R. China
| |
Collapse
|
2
|
Abdel-Hakim A, Belal F, Hammad MA, Kishikawa N, El-Maghrabey M. Adoption of self-exothermic reaction for synthesis of multifunctional carbon quantum dots: Applications to vincristine sensing and cell imaging. Talanta 2024; 282:126971. [PMID: 39366245 DOI: 10.1016/j.talanta.2024.126971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 09/22/2024] [Accepted: 09/27/2024] [Indexed: 10/06/2024]
Abstract
This work introduces an extremely easy method for preparing luminescent carbon dots (CDs) at ambient temperature using 1,2-naphthoquinone sulphonate and ethylenediamine as precursors via self-exothermic reaction without energy input. The as-obtained CDs have a high quantum yield (34.1 %), a production yield of 21.2 %, and a small size diameter (3.44 nm). Various techniques (NMR, TEM, EDX-mapping, XPS, XRD, FT-IR, fluorescence, and UV-visible spectroscopy) were used to characterize the prepared CDs. The CDs exhibited an excitation-independent emission with λex of 275 nm, demonstrating their homogeneity and high purity. The anticancer drug vincristine (VCR) quantitively quenched the fluorescent signal of the synthesized CDs, allowing their application as the first fluorescent nano-sensor to determine VCR. The quenching effect was linear within the range of 0.2-5.0 μg mL-1, enabling the determination of VCR in vials, plasma, and for content uniformity testing with a detection limit of 0.06 μg mL-1. Moreover, the synthesized CDs were employed as a bio-sensing platform to detect VCR in cancer cells owing to their good selectivity, excellent biocompatibility, minimal cytotoxicity, and high stability. The fabrication of CDs with excellent properties at room temperature under mild conditions paves the way for new advancements in the room temperature synthesis of CDs and offers a highly efficient alternative to traditional synthesis approaches.
Collapse
Affiliation(s)
- Ali Abdel-Hakim
- Analytical Chemistry Department, Faculty of Pharmacy, University of Sadat City, Sadat City, 32897, Monufia, Egypt; Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| | - Fathalla Belal
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| | - Mohamed A Hammad
- Analytical Chemistry Department, Faculty of Pharmacy, University of Sadat City, Sadat City, 32897, Monufia, Egypt
| | - Naoya Kishikawa
- Graduate School of Biomedical Sciences, Course of Pharmaceutical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Mahmoud El-Maghrabey
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt; Graduate School of Biomedical Sciences, Course of Pharmaceutical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan.
| |
Collapse
|
3
|
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.
Collapse
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
| |
Collapse
|
4
|
Ferreira RAS, Correia SFH, Georgieva P, Fu L, Antunes M, André PS. A comprehensive dataset of photonic features on spectral converters for energy harvesting. Sci Data 2024; 11:50. [PMID: 38191564 PMCID: PMC10774306 DOI: 10.1038/s41597-023-02827-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 12/06/2023] [Indexed: 01/10/2024] Open
Abstract
Building integrated photovoltaics is a promising strategy for solar technology, in which luminescent solar concentrators (LSCs) stand out. Challenges include the development of materials for sunlight harvesting and conversion, which is an iterative optimization process with several steps: synthesis, processing, and structural and optical characterizations before considering the energy generation figures of merit that requires a prototype fabrication. Thus, simulation models provide a valuable, cost-effective, and time-efficient alternative to experimental implementations, enabling researchers to gain valuable insights for informed decisions. We conducted a literature review on LSCs over the past 47 years from the Web of ScienceTM Core Collection, including published research conducted by our research group, to gather the optical features and identify the material classes that contribute to the performance. The dataset can be further expanded systematically offering a valuable resource for decision-making tools for device design without extensive experimental measurements.
Collapse
Affiliation(s)
- Rute A S Ferreira
- Department of Physics and CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Sandra F H Correia
- Instituto de Telecomunicações, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Petia Georgieva
- Instituto de Telecomunicações, University of Aveiro, 3810-193, Aveiro, Portugal
- Departament of Electronics, Telecommunications and Informatics, Institute of Electronics and Informatics Engineering of Aveiro (IEETA), University of Aveiro, 3810-193, Aveiro, Portugal
| | - Lianshe Fu
- Department of Physics and CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Mário Antunes
- Instituto de Telecomunicações, University of Aveiro, 3810-193, Aveiro, Portugal
- Departament of Electronics, Telecommunications and Informatics, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Paulo S André
- Department of Electrical and Computer Engineering and Instituto de Telecomunicações, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal.
| |
Collapse
|
5
|
Hu H, Wu Y, Gong X. Organosilicon-Based Carbon Dots and Their Versatile Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305933. [PMID: 37661362 DOI: 10.1002/smll.202305933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/09/2023] [Indexed: 09/05/2023]
Abstract
Carbon dots (CDs) are a newly discovered type of fluorescent material that has gained significant attention due to their exceptional optical properties, biocompatibility, and other remarkable characteristics. However, single CDs have some drawbacks such as self-quenching, low quantum yield (QY), and poor stability. To address these issues, researchers have turned to organosilicon, which is known for its green, economical, and abundant properties. Organosilicon is widely used in various fields including optics, electronics, and biology. By utilizing organosilicon as a synthetic precursor, the biocompatibility, QY, and resistance to self-quenching of CDs can be improved. Meanwhile, the combination of organosilicon with CDs enables the functionalization of CDs, which significantly expands their original application scenarios. This paper comprehensively analyzes organosilicon in two main categories: precursors for CD synthesis and matrix materials for compounding with CDs. The role of organosilicon in these categories is thoroughly reviewed. In addition, the paper presents various applications of organosilicon compounded CDs, including detection and sensing, anti-counterfeiting, optoelectronic applications, and biological applications. Finally, the paper briefly discusses current development challenges and future directions in the field.
Collapse
Affiliation(s)
- Huajiang Hu
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Yongzhong Wu
- School of Mechanical Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Xiao Gong
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China
| |
Collapse
|
6
|
Wang L, Chen Y, Lai Y, Zhao X, Zheng K, Wang R, Zhou Y. Highly efficient and stable tandem luminescent solar concentrators based on carbon dots and CuInSe 2-xS x/ZnS quantum dots. NANOSCALE 2023; 16:188-194. [PMID: 38018877 DOI: 10.1039/d3nr05471c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Semi-transparent large-area luminescent solar concentrators (LSCs) have been considered an essential part of zero-energy or low-energy consuming buildings in the future. Inorganic colloidal quantum dots (QDs) are promising candidates for LSCs due to the advantages of a tunable bandgap, engineered large Stokes shift, and relatively high photoluminescence (PL) quantum yield. However, LSCs that are fabricated using colloidal quantum dots exhibited an inferior stability under long-term illumination, demanding great efforts to explore the highly stable LSCs. Herein, we fabricated large-area (∼100 cm2) tandem LSCs based on highly stable carbon dots (CDs) and highly luminescent near-infrared emitting CuInSe2-xSx/ZnS (CuInSeS/ZnS) QDs. Coupled with a Si diode as a reference, the power conversion efficiency of the corresponding tandem (dimensions: 10 × 10 × 0.5 cm3) and single LSCs (dimensions: 10 × 10 × 0.3 cm3) based on CuInSeS/ZnS QDs under one sun illumination are 0.46% and 0.5%, respectively. For single CuInSeS/ZnS QD based LSCs at a low concentration (0.039 wt%), external and internal quantum efficiencies reach up to 2.87% and 36.37%, respectively. After UV illumination for 8 h, bottom LSCs based on CuInSeS/ZnS QDs retain 93.22% of the initial PL emission, which is higher than that of LSCs (∼80%) without the CD protection. The highly efficient and stable tandem LSCs employing green CDs and NIR CuInSeS/ZnS QDs as PL emitters pave the way for the realization of large area building-integrated photovoltaic (BIPV) devices.
Collapse
Affiliation(s)
- Lianju Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Yiqing Chen
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Yueling Lai
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Xianglong Zhao
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Kanghui Zheng
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Ruilin Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Chengdu 610065, P. R. China
| | - Yufeng Zhou
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| |
Collapse
|
7
|
Mandal T, Mishra SR, Singh V. Comprehensive advances in the synthesis, fluorescence mechanism and multifunctional applications of red-emitting carbon nanomaterials. NANOSCALE ADVANCES 2023; 5:5717-5765. [PMID: 37881704 PMCID: PMC10597556 DOI: 10.1039/d3na00447c] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/12/2023] [Indexed: 10/27/2023]
Abstract
Red emitting fluorescent carbon nanomaterials have drawn significant scientific interest in recent years due to their high quantum yield, water-dispersibility, photostability, biocompatibility, ease of surface functionalization, low cost and eco-friendliness. The red emissive characteristics of fluorescent carbon nanomaterials generally depend on the carbon source, reaction time, synthetic approach/methodology, surface functional groups, average size, and other reaction environments, which directly or indirectly help to achieve red emission. The importance of several factors to achieve red fluorescent carbon nanomaterials is highlighted in this review. Numerous plausible theories have been explained in detail to understand the origin of red fluorescence and tunable emission in these carbon-based nanostructures. The above advantages and fluorescence in the red region make them a potential candidate for multifunctional applications in various current fields. Therefore, this review focused on the recent advances in the synthesis approach, mechanism of fluorescence, and electronic and optical properties of red-emitting fluorescent carbon nanomaterials. This review also explains the several innovative applications of red-emitting fluorescent carbon nanomaterials such as biomedicine, light-emitting devices, sensing, photocatalysis, energy, anticounterfeiting, fluorescent silk, artificial photosynthesis, etc. It is hoped that by choosing appropriate methods, the present review can inspire and guide future research on the design of red emissive fluorescent carbon nanomaterials for potential advancements in multifunctional applications.
Collapse
Affiliation(s)
- Tuhin Mandal
- Environment Emission and CRM Section, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
| | - Shiv Rag Mishra
- Environment Emission and CRM Section, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
| | - Vikram Singh
- Environment Emission and CRM Section, CSIR-Central Institute of Mining and Fuel Research Dhanbad Jharkhand 828108 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
| |
Collapse
|
8
|
Correia SFH, Fu L, Dias LMS, Pereira RFP, de Zea Bermudez V, André PS, Ferreira RAS. An autonomous power temperature sensor based on window-integrated transparent PV using sustainable luminescent carbon dots. NANOSCALE ADVANCES 2023; 5:3428-3438. [PMID: 37383075 PMCID: PMC10295119 DOI: 10.1039/d3na00136a] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 04/06/2023] [Indexed: 06/30/2023]
Abstract
The energy efficiency of buildings can be significantly improved through the use of renewable energy sources. Luminescent solar concentrators (LSCs) appear to be a solution for integrating photovoltaic (PV) devices into the structure of buildings (windows, for instance) to enable low-voltage devices to be powered. Here, we present transparent planar and cylindrical LSCs based on carbon dots in an aqueous solution and dispersed in organic-inorganic hybrid matrices, which present photoluminescent quantum yield values up to 82%, facilitating an effective solar photon conversion. These LSCs showed the potencial for being incorporated as building windows due to an average light transmittance of up to ∼91% and color rendering index of up to 97, with optical and power conversion efficiency values of 5.4 ± 0.1% and 0.18 ± 0.01%, respectively. In addition, the fabricated devices showed temperature sensing ability enabling the fabrication of an autonomous power mobile temperature sensor. Two independent thermometric parameters were established based on the emission and the electrical power generated by the LSC-PV system, which could both be accessed by a mobile phone, enabling mobile optical sensing through multiparametric thermal reading with relative sensitivity values up to 1.0% °C-1, making real-time mobile temperature sensing accessible to all users.
Collapse
Affiliation(s)
- Sandra F H Correia
- Instituto de Telecomunicações and University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Lianshe Fu
- Department of Physics and CICECO - Aveiro Institute of Materials, University of Aveiro 3810-193 Aveiro Portugal
| | - Lília M S Dias
- Department of Physics and CICECO - Aveiro Institute of Materials, University of Aveiro 3810-193 Aveiro Portugal
- Department of Electrical and Computer Engineering and Instituto de Telecomunicações, Instituto Superior Técnico, University of Lisbon 1049-001 Lisbon Portugal
| | - Rui F P Pereira
- Chemistry Center and Chemistry Department, University of Minho 4710-057 Braga Portugal
| | - V de Zea Bermudez
- Chemistry Department and CQ-VR, University of Trás-os-Montes e Alto Douro 5000-801 Vila Real Portugal
| | - Paulo S André
- Department of Electrical and Computer Engineering and Instituto de Telecomunicações, Instituto Superior Técnico, University of Lisbon 1049-001 Lisbon Portugal
| | - Rute A S Ferreira
- Department of Physics and CICECO - Aveiro Institute of Materials, University of Aveiro 3810-193 Aveiro Portugal
| |
Collapse
|
9
|
Wang L, Wang X, Zhou S, Ren J, Liu L, Xiao C, Deng C. Single-particle dispersion of carbon dots in the nano-hydroxyapatite lattice achieving solid-state green fluorescence. NANOSCALE ADVANCES 2023; 5:3304-3315. [PMID: 37325540 PMCID: PMC10263101 DOI: 10.1039/d3na00106g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 05/06/2023] [Indexed: 06/17/2023]
Abstract
Carbon dots (CDs), as new carbon nanomaterials, have potential applications in multiple fields due to their superior optical properties, good biocompatibility, and easy preparation. However, CDs are typically an aggregation-caused quenching (ACQ) material, which has a huge limitation on the practical application of CDs. To solve this problem, in this paper, CDs were prepared by the solvothermal method using citric acid and o-phenylenediamine as precursors and dimethylformamide as solvent. Then using CDs as nucleating agents, solid-state green fluorescent CDs were synthesized by in situ growth of nano-hydroxyapatite (HA) crystals on the surface of CDs. The results show that CDs are stably dispersed single-particlely in the form of bulk defects in the nano-HA lattice matrices with a dispersion concentration of 3.10%, and solid-state green fluorescence of CDs is achieved with a stable emission wavelength peak position near 503 nm, which provides a new solution to the ACQ problem. CDs-HA nanopowders were further used as LED phosphors to obtain bright green LEDs. In addition, CDs-HA nanopowders showed excellent performance in cell imaging (mBMSCs and 143B) applications, which provides a new scheme for further applications of CDs in the field of cell imaging and even in vivo imaging.
Collapse
Affiliation(s)
- Lunzhu Wang
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology China
| | - Xinru Wang
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology China
| | - Shuoshuo Zhou
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology China
| | - Jian Ren
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology China
| | - Liting Liu
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology China
| | - Cairong Xiao
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology China
| | - Chunlin Deng
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology China
| |
Collapse
|
10
|
Wang ZX, Ding SN. Duplex-immunoassay of ovarian cancer biomarker CA125 and HE4 based carbon dot decorated dendritic mesoporous silica nanoparticles. Analyst 2023; 148:683-689. [PMID: 36629898 DOI: 10.1039/d2an01929a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Fluorescent lateral flow immunoassay (FLFIA) is widely used mainly because of its low cost and instant detection. Its limit of detection (LOD) is closely related to fluorescence signals, and the development of fluorescence signals with fine performance remains a challenge. In this work, dendritic mesoporous silica nanoparticles (DMSNs) were used as fine carriers due to their large pore size and stable performance. We successfully synthesized carbon dots (CDs) with a 560 nm maximum emission wavelength (CD560) by the hydrothermal method. A new type of fluorescence signal for FLFIA was observed by loading CD560 on DMSNs through the Si-O bond which is denoted as DMSNs@CD560. Applying DMSNs@CD560 to the FLFIA can eliminate the influence of interfacial background blue fluorescence thus improving its detection sensitivity. The formed DMSNs@CD560-FLFIA achieved high sensitivity detection of ovarian cancer biomarkers carbohydrate antigen 125 (CA125) and human epididymal protein 4 (HE4). The LOD of CA125 is 0.5 U mL-1 and the correlation coefficient R2 = 0.985, and the LOD of HE4 reaches 0.05 ng mL-1 and the correlation coefficient R2 = 0.981. The DMSNs@CD560-FLFIA is sensitive and efficient providing a new method for the early diagnosis of ovarian cancer.
Collapse
Affiliation(s)
- Zi-Xuan Wang
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Shou-Nian Ding
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
| |
Collapse
|
11
|
Cao M, Zhao X, Gong X. Achieving High-Efficiency Large-Area Luminescent Solar Concentrators. JACS AU 2023; 3:25-35. [PMID: 36711087 PMCID: PMC9875231 DOI: 10.1021/jacsau.2c00504] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/27/2022] [Accepted: 11/29/2022] [Indexed: 05/27/2023]
Abstract
Luminescent solar concentrators (LSCs) are semitransparent windows that are able to generate electricity from sunlight absorption. LSCs have shown huge promise for realizing building-integrated photovoltaics (BIPV). Unfortunately, to date, the power conversion efficiency (PCE) of LSCs is still very low which dramatically hampers their practical applications. In this Perspective, We summarize and review the latest developments of LSCs by looking at different structures. Among others, we focus more on the next developments in the field of LSCs, i.e., the possibility of high PCE, large area, mass production, and durability needed for future industrial development. We hope to promote the application of uniform testing standards and to draw attention to industrial development, toxicity, and durability. Then, we will provide a critical assessment of the field of LSCs. Finally, the challenge and solution will be discussed.
Collapse
Affiliation(s)
- Mengyan Cao
- 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
| |
Collapse
|
12
|
Huang Q, Sun H, Lu C, Wang C, Xu S. Post-synthetic regulation of the fluorescence of CDs: insights into the fluorescence mechanism. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:353-360. [PMID: 36594675 DOI: 10.1039/d2ay01632j] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Exploring the origin of emission is fundamental in the field of carbon dots (CDs). Due to the lack of suitable in situ probing techniques, it is necessary to explore effective alternative methods that can accurately reflect the relationship between the emission and the composition of the functional groups of CDs. Herein, we propose a new method of post-synthetic treatment of CDs by photo-oxidation to investigate the origin of emission for CDs. After the addition of a photo-oxidant into pre-prepared CDs under UV irradiation, the fluorescence of CDs can be regulated from the original orange emission to the final green emission due to the damage of original functional groups and the formation of new functional groups on CDs during the post-treatment process. The abundant dynamic information about the functional groups and emissions of CDs during the visible and ready-to-monitor post-treatment process makes it possible to quantitatively analyze the origin of the emission of CDs. Our results suggest that the emission sub-peaks at 560 nm and 600 nm relate to the CD surface-state-associated -NH3+ groups, while the emission sub-peak at 537 nm or 494 nm is associated with the CD surface-state-associated -OH groups or the CD surface-state-associated carbonyl groups (CO). Under UV irradiation, the CD surface-state-associated -NH3+ groups can be continuously converted into the CD surface-state-associated -OH groups and the CD surface-state-associated carbonyl groups (CO), leading to the changed emission color of CDs.
Collapse
Affiliation(s)
- Qingchun Huang
- School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China.
| | - Hongcan Sun
- School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China.
| | - Changgui Lu
- School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China.
| | - Chunlei Wang
- School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China.
| | - Shuhong Xu
- School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People's Republic of China.
| |
Collapse
|
13
|
Li J, Zhao H, Zhao X, Gong X. Boosting efficiency of luminescent solar concentrators using ultra-bright carbon dots with large Stokes shift. NANOSCALE HORIZONS 2022; 8:83-94. [PMID: 36321503 DOI: 10.1039/d2nh00360k] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Luminescent solar concentrators (LSCs) are able to collect sunlight from a large-area to generate electric power with a low cost, showing great potential in building-integrated photovoltaics. However, the low efficiency of large-area LSCs caused by the reabsorption losses is a critical issue that hampers their practical applications. In this work, we synthesized novel yellow emissive carbon dots (CDs) with a large Stokes shift of 193 nm, which exhibit nearly zero reabsorption. The quantum yield (QY) of the yellow emitting CDs is up to 61%. The yellow emitting CDs can be employed to fabricate high-performance large-area LSCs due to successful suppression of the reabsorption losses. The as-prepared LSCs are able to absorb 14% of the sunlight as the absorption of the CDs matches well with the sun's spectrum. The large-area LSC (10 × 10 cm2) with a laminated structure based on the yellow emitting CDs achieves an optical conversion efficiency (ηopt) of 4.56% and power conversion efficiency (ηPCE) of 4.1% under natural sunlight (45 mW cm-2), which are significantly higher than other previously reported works with similar sizes. Furthermore, the prepared high-performance LSCs show good stability. This method of synthesizing novel CDs for high-efficiency LSCs provides a useful platform for future study and practical application of LSCs.
Collapse
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 & College of Textiles & Clothing, 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.
| |
Collapse
|
14
|
Kovaleski G, Kholany M, Dias LMS, Correia SFH, Ferreira RAS, Coutinho JAP, Ventura SPM. Extraction and purification of phycobiliproteins from algae and their applications. Front Chem 2022; 10:1065355. [PMID: 36531328 PMCID: PMC9752866 DOI: 10.3389/fchem.2022.1065355] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 11/14/2022] [Indexed: 09/02/2023] Open
Abstract
Microalgae, macroalgae and cyanobacteria are photosynthetic microorganisms, prokaryotic or eukaryotic, living in saline or freshwater environments. These have been recognized as valuable carbon sources, able to be used for food, feed, chemicals, and biopharmaceuticals. From the range of valuable compounds produced by these cells, some of the most interesting are the pigments, including chlorophylls, carotenoids, and phycobiliproteins. Phycobiliproteins are photosynthetic light-harvesting and water-soluble proteins. In this work, the downstream processes being applied to recover fluorescent proteins from marine and freshwater biomass are reviewed. The various types of biomasses, namely macroalgae, microalgae, and cyanobacteria, are highlighted and the solvents and techniques applied in the extraction and purification of the fluorescent proteins, as well as their main applications while being fluorescent/luminescent are discussed. In the end, a critical perspective on how the phycobiliproteins business may benefit from the development of cost-effective downstream processes and their integration with the final application demands, namely regarding their stability, will be provided.
Collapse
Affiliation(s)
- Gabriela Kovaleski
- Department of Chemistry, CICECO—Aveiro Institute of Materials, University of Aveiro Campus Universitário de Santiago, Aveiro, Portugal
- Department of Physics, CICECO—Aveiro Institute of Materials, University of Aveiro Campus Universitário de Santiago, Aveiro, Portugal
| | - Mariam Kholany
- Department of Chemistry, CICECO—Aveiro Institute of Materials, University of Aveiro Campus Universitário de Santiago, Aveiro, Portugal
| | - Lília M. S. Dias
- Department of Physics, CICECO—Aveiro Institute of Materials, University of Aveiro Campus Universitário de Santiago, Aveiro, Portugal
| | | | - Rute A. S. Ferreira
- Department of Physics, CICECO—Aveiro Institute of Materials, University of Aveiro Campus Universitário de Santiago, Aveiro, Portugal
| | - João A. P. Coutinho
- Department of Chemistry, CICECO—Aveiro Institute of Materials, University of Aveiro Campus Universitário de Santiago, Aveiro, Portugal
| | - Sónia P. M. Ventura
- Department of Chemistry, CICECO—Aveiro Institute of Materials, University of Aveiro Campus Universitário de Santiago, Aveiro, Portugal
| |
Collapse
|
15
|
Li J, Gong X. The Emerging Development of Multicolor Carbon Dots. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2205099. [PMID: 36328736 DOI: 10.1002/smll.202205099] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/13/2022] [Indexed: 06/16/2023]
Abstract
As a relatively new type of fluorescent carbon-based nanomaterials, multicolor carbon dots (MCDs) have attracted much attention because of their excellent biocompatibility, tunable photoluminescence (PL), high quantum yield, and unique electronic and physicochemical properties. The multicolor emission characteristics of carbon dots (CDs) obviously depend on the carbon source precursor, reaction conditions, and reaction environment, which directly or indirectly determines the multicolor emission characteristics of CDs. Therefore, this review is the first systematic classification and summary of multiple regulation methods of synthetic MCDs and reviews the recent research progress in the synthesis of MCDs from a variety of precursor materials such as aromatic molecules, small organic molecules, and natural biomass, focusing on how different regulation methods produce corresponding MCDs. This review also introduces the innovative applications of MCDs in the fields of biological imaging, light-emitting diodes (LEDs), sensing, and anti-counterfeiting due to their excellent PL properties. It is hoped that by selecting appropriate adjustment methods, this review can inspire and guide the future research on the design of tailored MCDs, and provide corresponding help for the development of multifunctional MCDs.
Collapse
Affiliation(s)
- Jiurong Li
- 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
| |
Collapse
|
16
|
Lee C, Cho H, Ko J, Kim S, Ko Y, Park S, Kang Y, Yun YJ, Jun Y. Color balanced transparent luminescent solar concentrator based on a polydimethylsiloxane polymer waveguide with coexisting polar and non-polar fluorescent dyes. OPTICS EXPRESS 2022; 30:37085-37100. [PMID: 36258626 DOI: 10.1364/oe.470467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 09/03/2022] [Indexed: 06/16/2023]
Abstract
Color balance is a critical concept in the application of functional transparent polymers from a customer's standpoint. In this study, multiple polar and non-polar fluorescent dyes are embedded simultaneously for the first time in a polydimethylsiloxane (PDMS) polymer matrix. Five dyes successfully coexist with the optimum blending ratio. Furthermore, simultaneous dispersing of polar and non-polar dyes in the polymer is achieved. Absorption and photoluminescence characteristics of multiple fluorescent dyes in PDMS medium are systemically deconvoluted and discussed. The competitive average visible transmittance and color balance of synthesized multi-fluorescent dye embedded PDMS is demonstrated by high color rendering index and CIE color space coordinates close to the white point. Additionally, the luminescent solar concentrator device demonstrates improved power conversion efficiency and light utilization efficiency than the pure PDMS waveguide-based device. Moreover, the long-term storage stability is demonstrated successfully. The findings, therefore, demonstrate the applicability of multi-fluorescent dye embedded PDMS to advanced transparent devices.
Collapse
|
17
|
Lv G, Wang Z, Li W, Zhu G, Liu B, Song B, Wu M, Gong X. Acid-regulated boron-nitrogen codoped multicolor carbonized polymer dots and applications for pH sensing and trace water detection. NANOSCALE 2022; 14:12762-12772. [PMID: 36000557 DOI: 10.1039/d2nr03161b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
To obtain multicolor carbonized polymer dots (CPDs), acid-assisted hydrothermal/solvothermal reactions are an effective strategy. However, the long wavelength fluorescence of boron-nitrogen codoped CPDs (BN-CPDs) is rarely reported. In this work, we used concentrated hydrochloric acid to regulate the fluorescence (from green to orange) of BN-CPDs via a solvothermal reaction. Meanwhile, 3-formylphenylboronic acid with a benzene ring structure was employed as the boron source, which helped the formation of the internal conjugated structure of CPDs to obtain long wavelength fluorescent CPDs. The fluorescence properties of BN-CPDs were investigated, which indicated the concentration- and solvent-dependent properties of the BN-CPDs. Based on the experimental results, we assume that the multicolor emission of the BN-CPDs originates from the synergistic effects of the degree of graphitization and surface states. Due to the special fluorescence properties of the BN-CPDs, pH sensing and trace water detection in dichloromethane solution can be effectively achieved. The results of the study reveal the potential of BN-CPDs in sensing applications.
Collapse
Affiliation(s)
- Ge Lv
- Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Ziwei Wang
- Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Wenjing Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, P. R. China.
| | - Guannan Zhu
- Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Beibei Liu
- Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Bin Song
- Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Min Wu
- Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Xiao Gong
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, P. R. China.
| |
Collapse
|
18
|
Han S, Wen J, Cheng Z, Chen G, Jin S, Shou C, Kuo HC, Tu CC. Luminescence-guided and visibly transparent solar concentrators based on silicon quantum dots. OPTICS EXPRESS 2022; 30:26896-26911. [PMID: 36236873 DOI: 10.1364/oe.463353] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 06/23/2022] [Indexed: 06/16/2023]
Abstract
In this work, we demonstrate a new tapered prism-shaped luminescent solar concentrator (LSC), which guides most of the luminescence toward one edge instead of four, for the solar window application. Only one Si photovoltaic (PV) strip attached to the light-emitting sidewall is needed to collect the luminescence, which further reduces PV material cost and avoids electrical mismatch. To achieve high visible transmission and mitigate reabsorption, colloidal silicon quantum dots (SiQDs) with ultraviolet-selective absorption and large Stokes shift are used as the fluorophores. With the SiQD concentration equal to 8 mg mL-1, the SiQD-LSC as a solar window can attain a power conversion efficiency (PCE) equal to 0.27%, while ensuring high average visible transmission (AVT = 86%) and high color rendering index (CRI = 94 with AM1.5G as the incident spectrum). When adjusted to front-facing, the Si PV strip can harvest not only the direct sunlight but also the concentrated SiQD fluorescence guided from the LSC. As a result, the overall solar window PCE can be increased to 1.18%, and the PCE of the front-facing Si PV strip alone can be increased by 7% due to the luminescence guided from the SiQD-LSC.
Collapse
|
19
|
Xin W, Wang J, Xu B, Wu J, Wang J, Ren Z, Cai C, Xue C, Li J, Wang X. Construction of highly efficient carbon dots-based polymer photonic luminescent solar concentrators with sandwich structure. NANOTECHNOLOGY 2022; 33:305601. [PMID: 35395655 DOI: 10.1088/1361-6528/ac659d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
The enhancement of photoluminescence (PL) emission and waveguide play a key role in improving the optical efficiency of luminescent solar concentrators (LSCs). In this work, to boosting PL emission and waveguide simultaneously, one photonic crystal (PC) structure (crystalline colloid arrays (CCAs)) was introduced into carbon dots (CDs)-based polymer LSCs. A sandwich-structured CDs-based polymer photonic LSC, comprising glass/CDs-based polymer PC film/glass, was created. First, CDs-based colloidal crystal suspensions were prepared by co-assembly of monodispersed p(MMA-NIPAm) colloids and multicolor-emitting CDs in HEMA monomer induced by the evaporation-driven assembly. The obtained suspensions not only had uniform PL and structural colors, but showed enhanced PL emission. Second, the above suspensions were sandwiched between two glass sheets and finally a photonic polymer LSC with sandwiched structure (25 × 25 × 1.8 mm3) were formed via one-step photopolymerization technique. Remarkably, the optimal CDs-based polymer photonic LSCs with sandwiched structure not only had high transparence at visible range (>60%), but exhibited PL emission enhancement (at least 2 times). Furthermore, the maximum external optical efficiency (ηopt) of 5.84% could be achieved based on yellow-emitting CDs-based polymer photonic LSC. The high external optical efficiency was mainly attributed to the PL emission enhancement and good PC waveguide.
Collapse
Affiliation(s)
- Wei Xin
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Jianying Wang
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Bing Xu
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Jun Wu
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Jun Wang
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Zhanpeng Ren
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Chen Cai
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Chenglong Xue
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Jinhua Li
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Xianbao Wang
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| |
Collapse
|
20
|
Zhu L, Shen D, Hong Luo K. Triple-emission nitrogen and boron co-doped carbon quantum dots from lignin: Highly fluorescent sensing platform for detection of hexavalent chromium ions. J Colloid Interface Sci 2022; 617:557-567. [PMID: 35303639 DOI: 10.1016/j.jcis.2022.03.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/08/2022] [Accepted: 03/09/2022] [Indexed: 12/24/2022]
Abstract
Considering that hexavalent chromium ions (Cr6+) with high toxicity poses a huge threat to human health and the ecological environment, constructing a rapid and accurate sensing platform is of great significance in detecting the toxic substance. The novel nitrogen and boron co-doped carbon quantum dots (N, B-CQDs) from lignin are synthesized as fluorescent sensors for the detection of Cr6+. The synthetic processes involve the acid hydrolysis step followed by the hydrothermal treatment step. Lignin is firstly depolymerized by cleaving ether bonds in the acidolysis, and N, B-CQDs are consequently formed by the aromatic re-fusion of lignin nanoparticles in the hydrothermal process. The lignin-derived N, B-CQDs show triple emission of purple, blue and green fluorescence under the excitation of 300, 330, and 490 nm, respectively. The triple-emission N, B-CQDs are applied for the triple-channel detection of Cr6+, which exhibit highly sensitive and selective fluorescence quenching for Cr6+ with good linearity (R2 ≤ 0.996) and very low limit of detection as 0.054, 0.049, and 0.077 μM under the excitation of 300, 330 and 490 nm, respectively. The utilization of renewable lignin as CQDs-based fluorescent sensors opens a new avenue for the rapid and accurate detection of Cr6+ through a multichannel sensing platform.
Collapse
Affiliation(s)
- Lingli Zhu
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, PR China
| | - Dekui Shen
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, PR China.
| | - Kai Hong Luo
- Department of Mechanical Engineering, University College London, London WC1E7JE, UK
| |
Collapse
|
21
|
Lu W, Liu Y, Zhang ZY, Xiao J, Liu CY. Dual emissive amphiphilic carbon dots as ratiometric fluorescent probes for the determination of critical micelle concentration of surfactants. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:672-677. [PMID: 35088063 DOI: 10.1039/d1ay02042k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The sensitive determination of the critical micelle concentration (CMC) of surfactants is very important for their practical application. Due to their good sensitivity and simple operation, pyrene and its derivatives have been widely used as fluorescent probes to detect the CMC. However, their virulent and poor water-soluble nature has limited their wide employment. In the present work, environmentally friendly amphiphilic carbon dots (Cdots) with dual-color emission and absolute quantum yield (PLQY) values higher than 50% have been fabricated through a solvothermal process, which could successfully serve as self-calibrative, ratiometric fluorescent probes to estimate the CMC of both non-ionic and ionic surfactants. This work not only provides a new strategy to design green ratiometric fluorescent probes for the CMC measurement of surfactants but also expands the application of Cdots in the colloidal field.
Collapse
Affiliation(s)
- Weiwei Lu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
| | - Yun Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
| | - Zhi-Ying Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
| | - Junping Xiao
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Chun-Yan Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
| |
Collapse
|
22
|
Liu X, Yang Z, Yang Y, Li H. Carbon quantum dots sensitized 2D/2D carbon nitride nanosheets/bismuth tungstate for visible light photocatalytic degradation norfloxacin. CHEMOSPHERE 2022; 287:132126. [PMID: 34492407 DOI: 10.1016/j.chemosphere.2021.132126] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/24/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
A novel carbon quantum dots (CQDs) sensitized 2D/2D carbon nitride nanosheets and bismuth tungstate composite (CQD-CNs/BWO) was successfully prepared via the facile hydrothermal method and used for the photocatalytic degradation of norfloxacin (NOR). During 120 min irradiation test, CQD-CNs/BWO exhibited 9 and 1.76 times higher photocatalytic activity than CNs and BWO, respectively. CQDs and constructed 2D/2D structure could not only improve the light harvesting but also promote the generation and separation of electron-holes. The existing inorganic ions in solution (e.g. bicarbonate ions, chlorine ions, and sulfate ions) could inhibit NOR degradation. Based on the electron spin resonance and free radicals inhibition tests, the holes and superoxide radicals rather than hydroxyl radicals were the main reactive species. The intermediates and possible pathways were proposed, and the antibacterial activity of the treated solution after the reaction was evaluated via bacteriostatic tests. The prepared composite material with high photocatalytic activity and stability is potentially effective for the degradation of antibiotics in wastewater.
Collapse
Affiliation(s)
- Xinghao Liu
- Center for Environment and Water Resource, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha, 410083, PR China
| | - Zhaoguang Yang
- Center for Environment and Water Resource, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha, 410083, PR China
| | - Ying Yang
- Center for Environment and Water Resource, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha, 410083, PR China.
| | - Haipu Li
- Center for Environment and Water Resource, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha, 410083, PR China.
| |
Collapse
|