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Wang Y, Qin Y, Wang F, Zhang H, Huangfu C, Shi Y, Chen X, Wang Z, Tian W, Feng L. The Synthesis of Functionalized Carbonized Polymer Dots via Reversible Assembly of Oligomers for Anti-Counterfeiting, Catalysis, and Gas storage. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2405043. [PMID: 39120542 DOI: 10.1002/advs.202405043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 07/23/2024] [Indexed: 08/10/2024]
Abstract
Carbonized polymer dots (CPDs) have shown exceptional potential across a wide range of applications. However, their practical utilization is significantly greatly impeded by the lack of precise control over their structures and functionalities. Consequently, the development of controlled synthesis strategies for CPDs with well-defined structures and tailored functionalities remains a critical challenge in the field. Here, the controlled synthesis of functional CPDs with reversible assembly properties via airflow-assisted melt polymerization, followed by a one-step post-synthetic doping strategy, is reported. This synthetic approach achieves high product yield, uniform and tunable structures, as well as customized functionalities including solid-state emission, enhanced catalytic performance (3.5-45 times higher than conventional methods), and selective gas storage in the resulting CPDs. The ability to tailor the properties of CPDs through controlled synthesis opens up new opportunities for their practical application in photocatalysis and gas storage.
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Affiliation(s)
- Yu Wang
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China
| | - Yingxi Qin
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China
| | - Fengya Wang
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China
| | - Hongyu Zhang
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China
| | - Changxin Huangfu
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China
| | - Yushu Shi
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China
| | - Xize Chen
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China
| | - Zhenming Wang
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China
| | - Wenming Tian
- State Key Laboratory of Molecular Reaction Dynamics and the Dynamic Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Liang Feng
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China
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Feghhi F, Minagar A, Madaah Hosseini HR. Bandgap tailoring and enhancing the aromatization in cysteine-based carbon dots. J Colloid Interface Sci 2023; 651:36-46. [PMID: 37540928 DOI: 10.1016/j.jcis.2023.07.157] [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: 03/03/2023] [Revised: 07/14/2023] [Accepted: 07/24/2023] [Indexed: 08/06/2023]
Abstract
Cysteine, as a non-aromatic precursor, was used to produce Nitrogen (N) and Sulfur (S) sources for preparing N, S-doped carbon dots (CDs) with tunable luminescence emission. Despite the tremendous investigations, the photoluminescence (PL) mechanism of CDs is still unclear due to its complex core-shell structure, variety of surface functional groups, and structure dependency. This study focuses on controlling aromatization and graphitization processes during the hydrothermal synthesis on CDs by using Citric Acid (CA) and Ammonium persulfate. Detailed characterizations by FTIR spectroscopy, XPS, and HR-TEM are provided to suggest both chemical and bandgap structures. Results reveal that the red-shift of PL occurred due to the graphitization and increasing content of graphitic nitrogen in the core, as well as the Pyridinic and Amine groups creating sub-bands on the surface. These findings resolve the controversy on the PL mechanism of Cysteine-based CDs and provide a general guide for increasing the aromatization and graphitization degree from non-aromatic precursors which clarify the mechanism exploration and structural analysis of other types of CDs.
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Affiliation(s)
- Fazeleh Feghhi
- epartment of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, P.O. Box 11155-9466, Tehran, Iran
| | - Ava Minagar
- epartment of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, P.O. Box 11155-9466, Tehran, Iran
| | - H R Madaah Hosseini
- epartment of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, P.O. Box 11155-9466, Tehran, Iran; Institute for Convergence Science & Technology, Center for Bioscience & Technology, Sharif University of Technology, Tehran 1458889694, Iran.
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Li Y, Liu C, Sun H, Chen M, Hou D, Zheng Y, Xie H, Zhou B, Lin X. Formation and Band Gap Tuning Mechanism of Multicolor Emissive Carbon Dots from m-Hydroxybenzaldehyde. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2300543. [PMID: 37085685 DOI: 10.1002/advs.202300543] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/20/2023] [Indexed: 05/03/2023]
Abstract
Reported in 2004, carbon dots (CDs) have been widely used in various fields due to their excellent optical properties. However, the mechanism of their fluorescence modulation is still a controversial issue, which also seriously affects the further development of carbon dots. In this paper, m-hydroxybenzaldehyde is used as a raw material to obtain multicolor luminescent CDs by pyrolysis under different reaction conditions, thereby revealing the forbidden band tuning and formation mechanism of CDs. Different acid-base conditions lead to different reaction paths of the precursors, forming molecular fluorophores with different conjugated structures, which aggregate to eventually form CDs and further enhance the photoluminescence of the system by inhibiting the movement of the fluorescent centers.
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Affiliation(s)
- Yan Li
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forestry Resources, School of Materials and Chemical Engineering, Southwest Forestry University, 300 Bailong Road, Kunming, Yunnan, 650224, P. R. China
| | - Can Liu
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forestry Resources, School of Materials and Chemical Engineering, Southwest Forestry University, 300 Bailong Road, Kunming, Yunnan, 650224, P. R. China
| | - Hao Sun
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forestry Resources, School of Materials and Chemical Engineering, Southwest Forestry University, 300 Bailong Road, Kunming, Yunnan, 650224, P. R. China
| | - Menglin Chen
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forestry Resources, School of Materials and Chemical Engineering, Southwest Forestry University, 300 Bailong Road, Kunming, Yunnan, 650224, P. R. China
| | - Defa Hou
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forestry Resources, School of Materials and Chemical Engineering, Southwest Forestry University, 300 Bailong Road, Kunming, Yunnan, 650224, P. R. China
| | - Yunwu Zheng
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forestry Resources, School of Materials and Chemical Engineering, Southwest Forestry University, 300 Bailong Road, Kunming, Yunnan, 650224, P. R. China
| | - Haijiao Xie
- Hangzhou Yanqu Information Technology Co., Ltd., Y2, 2nd Floor, Building 2, Xixi Legu Creative Pioneering Park, No. 712 Wen'er West Road, Xihu District, Hangzhou, Zhejiang Province, 310003, P. R. China
| | - Bei Zhou
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forestry Resources, School of Materials and Chemical Engineering, Southwest Forestry University, 300 Bailong Road, Kunming, Yunnan, 650224, P. R. China
| | - Xu Lin
- National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forestry Resources, School of Materials and Chemical Engineering, Southwest Forestry University, 300 Bailong Road, Kunming, Yunnan, 650224, P. R. China
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Xu Q, Li J, Gong X. Dual-emission carbon dots for sensitive fluorescence detection of metal ions and ethanol in water. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:3562-3572. [PMID: 36043438 DOI: 10.1039/d2ay01080a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Carbon dots (CDs) have been widely used in biomedical fields because of their superior optical properties, high sensitivity and high selectivity to specific substances. However, there are few studies on trace detection of the ethanol content in aqueous solution using CDs. Herein, novel red fluorescent CDs with dual emission are synthesized and show good dispersibility in various solvents and excitation independence of photoluminescence (PL). After investigating the structure and properties of the red CDs, a multifunctional fluorescent nanoprobe based on the red CDs with high-sensitivity detection for dual-ion trace detection of Fe3+ and Cu2+ can be successfully constructed. The limit of detection of Fe3+ and Cu2+ can be up to 0.024 μM and 0.036 μM, respectively, which is superior to that in previous reports. Meanwhile, in view of the specific solvent effect on their PL, the red CDs are able to be applied for trace detection of the ethanol content in aqueous solution. The methods of colorimetry and fluorescence spectrometry are utilized to perform the threshold test and high-sensitivity quantitative analysis of the ethanol content in aqueous solution. Based on this, a multifunctional fluorescent nanoprobe based on the dual-emission red CDs can be obtained, which provides a promising way for their applications in detection and sensing fields.
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Affiliation(s)
- Qingqing Xu
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, P. R. China.
| | - 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.
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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.
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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.
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Meng F, Xu H, Wang S, Wei J, Zhou W, Wang Q, Li P, Kong F, Zhang Y. One-step high-yield preparation of nitrogen- and sulfur-codoped carbon dots with applications in chromium(vi) and ascorbic acid detection. RSC Adv 2022; 12:19686-19694. [PMID: 35919374 PMCID: PMC9277421 DOI: 10.1039/d2ra01758j] [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: 03/18/2022] [Accepted: 05/26/2022] [Indexed: 11/23/2022] Open
Abstract
In this research, a nitrogen- (N) and sulfur- (S) codoped carbon dot (CDs-IPM)-based sensor was synthesized using a single-step hydrothermal method. Specifically, microcrystalline cellulose (MCC) was the main raw material, which was extracted from banana pseudo-stem-based waste, while autonomous sulfonic acid-functionalized ionic liquid (SO3H-IL) and polyethylene glycol 400 (PEG 400) acted as the N, S dopant, and surface modifier, respectively. Comprehensive spectroscopic characterization of the synthesized CDs-IPM revealed the introduction of S, N atoms in the matrix with existence of surface oxygenic functional groups. The CDs-IPM possessed enhanced photoluminescence (PL) intensity, synthetic yield, and PL quantum yield (PLQY). Additionally, electron transfer between the CDs-IPM, hexavalent chromium (Cr(vi)), and subsequent ascorbic acid (AA) succeeded in turning the fluorescence on and off. The detection limit was 17 nM for Cr(vi), while it was 103 nM for AA. Our study data can simplify the process of synthesis of CDs utilizing biodegradable starting materials. The probe reported in this study may serve as a valuable addition to the field of environment monitoring by virtue of its enhanced detection sensitivity, high selectivity, and stability.
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Affiliation(s)
- Fanrong Meng
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
- College of Food and Biological Engineering, Jimei University Xiamen 361021 P. R. China
| | - Haoran Xu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Shuolin Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Jingxian Wei
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Wengong Zhou
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Qiang Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Peng Li
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Fangong Kong
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Yucang Zhang
- College of Food and Biological Engineering, Jimei University Xiamen 361021 P. R. China
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