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Chen YL, Kurniawan D, Tsai MD, Chang JW, Chang YN, Yang SC, Chiang WH, Kung CW. Two-dimensional metal-organic framework for post-synthetic immobilization of graphene quantum dots for photoluminescent sensing. Commun Chem 2024; 7:108. [PMID: 38734809 PMCID: PMC11088654 DOI: 10.1038/s42004-024-01192-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
Immobilization of graphene quantum dots (GQDs) on a solid support is crucial to prevent GQDs from aggregation in the form of solid powder and facilitate the separation and recycling of GQDs after use. Herein, spatially dispersed GQDs are post-synthetically coordinated within a two-dimensional (2D) and water-stable zirconium-based metal-organic framework (MOF). Unlike pristine GQDs, the obtained GQDs immobilized on 2D MOF sheets show photoluminescence in both suspension and dry powder. Chemical and photoluminescent stabilities of MOF-immobilized GQDs in water are investigated, and the use of immobilized GQDs in the photoluminescent detection of copper ions is demonstrated. Findings here shed the light on the use of 2D MOFs as a platform to further immobilize GQDs with various sizes and distinct chemical functionalities for a range of applications.
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Affiliation(s)
- You-Liang Chen
- Department of Chemical Engineering, National Cheng Kung University, Tainan City, Taiwan
| | - Darwin Kurniawan
- Department of Chemical Engineering, National Taiwan University of Science and Technology (NTUST), Taipei City, Taiwan
| | - Meng-Dian Tsai
- Department of Chemical Engineering, National Cheng Kung University, Tainan City, Taiwan
| | - Jhe-Wei Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan City, Taiwan
| | - Yu-Na Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan City, Taiwan
| | - Shang-Cheng Yang
- Department of Chemical Engineering, National Cheng Kung University, Tainan City, Taiwan
| | - Wei-Hung Chiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology (NTUST), Taipei City, Taiwan
- Sustainable Electrochemical Energy Development (SEED) Center, NTUST, Taipei City, Taiwan
- Advanced Manufacturing Research Center, NTUST, Taipei City, Taiwan
| | - Chung-Wei Kung
- Department of Chemical Engineering, National Cheng Kung University, Tainan City, Taiwan.
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Yazhini C, E S E, Thapa R, Neppolian B. Understanding the photo-sensitive essence of organic-inorganic hybrids for the targeted detection of azithromycin. CHEMOSPHERE 2024; 351:141247. [PMID: 38244872 DOI: 10.1016/j.chemosphere.2024.141247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 11/01/2023] [Accepted: 01/16/2024] [Indexed: 01/22/2024]
Abstract
Being a macrolide antibiotic, the antiviral and anti-inflammatory properties of azithromycin (AZM) were taken advantage of during the COVID-19 pandemic which led to the overuse of AZM resulting in excessive release and accumulation in the waterways and ecosystem causing unpleasant threats to humankind. This demands the necessity for a highly sensitive material being capable of recognizing AZM in wastewater. Mindful of the optical attributes of organic ligand structures, we have constructed a hybrid material by chelating Zn2+ with pyridyl benzimidazole (PBI). The prepared sensor material ZnPBI was characterized using various microscopic and spectroscopic techniques including XRD, FT-IR, HR-SEM, HR-TEM, etc. The proposed sensor material exhibited proficient detection performance selectively towards AZM with a very low detection limit of 72 nM. Two linear ranges between 0 - 70 μM and 70-100 μM were observed corresponding to two different mechanistic pathways. To the best of our knowledge, the utilization of a metal-organic complex (MOC) for the fluorometric detection of AZM has not been explored so far. It is creditworthy to cite that the long-term structural stability of the sensor material was maintained for 100 days in water and it can be reused three times without any depreciation in the sensing activity. A combination of energy transfer routes, adsorption and electrostatic interactions for AZM detection are described experimentally and theoretically which provides insights into the role of MOC as sensing probes.
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Affiliation(s)
- Crescentia Yazhini
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamilnadu, 603203, India
| | - Erakulan E S
- Department of Physics, SRM University - AP, Amaravati, 522 240, Andhra Pradesh, India
| | - Ranjit Thapa
- Department of Physics, SRM University - AP, Amaravati, 522 240, Andhra Pradesh, India; Center for Computational and Integrative Sciences, SRM University─AP, Amaravati, Andhra Pradesh 522 240, India
| | - B Neppolian
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamilnadu, 603203, India.
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Iranpour S, Bahrami AR, Dayyani M, Saljooghi AS, Matin MM. A potent multifunctional ZIF-8 nanoplatform developed for colorectal cancer therapy by triple-delivery of chemo/radio/targeted therapy agents. J Mater Chem B 2024; 12:1096-1114. [PMID: 38229578 DOI: 10.1039/d3tb02571c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
BACKGROUND Multimodal cancer therapy has garnered significant interest due to its ability to target tumor cells from various perspectives. The advancement of novel nano-delivery platforms represents a promising approach for improving treatment effectiveness while minimizing detrimental effects on healthy tissues. METHODS This study aimed to develop a multifunctional nano-delivery system capable of simultaneously delivering an anti-cancer drug, a radiosensitizer agent, and a targeting moiety (three-in-one) for the triple combination therapy of colorectal cancer (CRC). This unique nano-platform, called Apt-PEG-DOX/ZIF-8@GQD, encapsulated both doxorubicin (DOX) and graphene quantum dots (GQDs) within the zeolitic imidazolate framework-8 (ZIF-8). To enhance the safety and anti-cancer potential of the platform, heterobifunctional polyethylene glycol (PEG) and an epithelial cell adhesion molecule (EpCAM) aptamer were conjugated with the system, resulting in the formation of targeted Apt-PEG-DOX/ZIF-8@GQD NPs. The physical and chemical characteristics of Apt-PEG-DOX/ZIF-8@GQD were thoroughly examined, and its therapeutic efficacy was evaluated in combination with radiotherapy (RT) against both EpCAM-positive HT-29 and EpCAM-negative CHO cells. Furthermore, the potential of Apt-PEG-DOX/ZIF-8@GQD as a tumor-specific, radio-enhancing, non-toxic, and controllable delivery system for in vivo cancer treatment was explored using immunocompromised C57BL/6 mice bearing human HT-29 tumors. RESULTS The large surface area of ZIF-8 (1013 m2 g-1) enabled successful loading of DOX with an encapsulation efficiency of approximately ∼90%. The synthesis of Apt-PEG-DOX/ZIF-8@GQD resulted in uniform particles with an average diameter of 100 nm. This targeted platform exhibited rapid decomposition under acidic conditions, facilitating an on-demand release of DOX after endosomal escape. In vitro experiments revealed that the biocompatible nano-platform induced selective toxicity in HT-29 cells by enhancing X-ray absorption. Moreover, in vivo experiments demonstrated that the therapeutic efficacy of Apt-PEG-ZIF-8/DOX@GQD against HT-29 tumors was enhanced through the synergistic effects of chemotherapy, radiotherapy, and targeted therapy, with minimal side effects. CONCLUSION The combination of Apt-PEG-DOX/ZIF-8@GQD with RT as a multimodal therapy approach demonstrated promising potential for the targeted treatment of CRC and enhancing therapeutic effectiveness. The co-delivery of DOX and GQD using this nano-platform holds great promise for improving the outcome of CRC treatment.
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Affiliation(s)
- Sonia Iranpour
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Ahmad Reza Bahrami
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
- Industrial Biotechnology Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mahdieh Dayyani
- Radiation Oncology Department, Reza Radiotherapy and Oncology Center, Mashhad, Iran
| | - Amir Sh Saljooghi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
- Novel Diagnostics and Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Maryam M Matin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
- Novel Diagnostics and Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
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Balakrishnan T, Sagadevan S, Le MV, Soga T, Oh WC. Recent Progress on Functionalized Graphene Quantum Dots and Their Nanocomposites for Enhanced Gas Sensing Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:11. [PMID: 38202466 PMCID: PMC10780593 DOI: 10.3390/nano14010011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/15/2023] [Accepted: 12/16/2023] [Indexed: 01/12/2024]
Abstract
Gas-sensing technology has witnessed significant advancements that have been driven by the emergence of graphene quantum dots (GQDs) and their tailored nanocomposites. This comprehensive review surveys the recent progress made in the construction methods and applications of functionalized GQDs and GQD-based nanocomposites for gas sensing. The gas-sensing mechanisms, based on the Fermi-level control and charge carrier depletion layer theory, are briefly explained through the formation of heterojunctions and the adsorption/desorption principle. Furthermore, this review explores the enhancements achieved through the incorporation of GQDs into nanocomposites with diverse matrices, including polymers, metal oxides, and 2D materials. We also provide an overview of the key progress in various hazardous gas sensing applications using functionalized GQDs and GQD-based nanocomposites, focusing on key detection parameters such as sensitivity, selectivity, stability, response and recovery time, repeatability, and limit of detection (LOD). According to the most recent data, the normally reported values for the LOD of various toxic gases using GQD-based sensors are in the range of 1-10 ppm. Remarkably, some GQD-based sensors exhibit extremely low detection limits, such as N-GQDs/SnO2 (0.01 ppb for formaldehyde) and GQD@SnO2 (0.10 ppb for NO2). This review provides an up-to-date perspective on the evolving landscape of functionalized GQDs and their nanocomposites as pivotal components in the development of advanced gas sensors.
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Affiliation(s)
- Thivyah Balakrishnan
- Department of Chemical and Process Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia
| | - Suresh Sagadevan
- Nanotechnology & Catalysis Research Centre, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Minh-Vien Le
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City 700000, Vietnam
- Faculty of Chemical Engineering, Vietnam National University Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam
| | - Tetsuo Soga
- Department of Electrical and Mechanical Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
| | - Won-Chun Oh
- Department of Advanced Materials Science and Engineering, Hanseo University, Seosan 356-706, Republic of Korea
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A novel fluorescent biomimetic sensor based on cerium, nitrogen co-doped carbon quantum dots embedded in cobalt-based metal organic framework@molecularly imprinted polymer for selective and sensitive detection of oxytetracycline. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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6
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Lee S, Lee J, Jeon S. Aggregation-induced emission of matrix-free graphene quantum dots via selective edge functionalization of rotor molecules. SCIENCE ADVANCES 2023; 9:eade2585. [PMID: 36800418 PMCID: PMC9937574 DOI: 10.1126/sciadv.ade2585] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Graphene quantum dots (GQDs) are nanosized graphene derivatives with unique photoluminescence (PL) properties that have advantages in optoelectronic applications due to their stable blue light emission. However, aggregation-caused quenching (ACQ) of GQDs limits the practical applications on light-emitting diodes. Here, we suppress the ACQ phenomena of GQDs by reducing the size and converting GQDs into aggregation-induced emission (AIE)-active materials. As the size of GQDs is reduced from 5 to 1 nm, their solid-state PL quantum yields (PLQYs) are improved from 0.5 to 2.5%, preventing ACQ. Two different rotor molecules, benzylamine (BA) and 4,4'-(1,2-diphenylethene-1,2-diyl)diphenol (TPE-DOH), are selectively functionalized by substituting carboxylic acid and carbonyl functional groups. All functionalized GQDs show AIE behaviors with significantly enhanced solid-state PLQYs, up to 16.8%. Afterglow measurements and theoretical calculations reveal that selective functionalization hinders inter- and intramolecular charge transfer, which enhances the fluorescence rate of GQDs and corresponding PLQY.
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Affiliation(s)
- Sukki Lee
- Department of Materials Science and Engineering, KAIST Institute for the Nanocentury (KINC), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jinho Lee
- Department of Materials Science and Engineering, KAIST Institute for the Nanocentury (KINC), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Seokwoo Jeon
- Department of Materials Science and Engineering, KAIST Institute for the Nanocentury (KINC), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
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Gouran Oorimi P, Tarlani A, Zadmard R, Muzart J. Synthesis of photoluminescent composite based on graphene quantum dot@ZIF-11: a novel sensor for extremely efficient nano-molar detection of CN-. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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8
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Wang Z, Jin X, Yan L, Yang Y, Liu X. Recent research progress in CDs@MOFs composites: fabrication, property modulation, and application. Mikrochim Acta 2022; 190:28. [PMID: 36520192 DOI: 10.1007/s00604-022-05597-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/23/2022] [Indexed: 12/23/2022]
Abstract
Carbon dots (CDs) have exhibited a promising application prospect in many fields because of their good fluorescence properties, biocompatibility, low toxicity, and easy functionalization. In order to improve their photoelectricity and stability, metal-organic frameworks (MOFs) can be used as host materials to provide ideal carriers for CDs to realize the multifunctional composites of CDs and MOFs (CDs@MOFs). At present, CDs@MOFs composites have shown tremendous application potential because they have various advantages of both CDs and MOFs. In this review, the synthesis methods of CDs@MOFs composites are firstly introduced. Then, the influence of the synergy between CDs and MOFs on the regulation of their structures and optical properties is highlighted. Furthermore, the recent application researches of CDs@MOFs composites in fluorescent probes, solid-state lighting, and photoelectrocatalysis are generalized. Finally, the critical issues, challenges, and solutions on their structure and property regulation and application are put forward, and their commercialization direction is also prospected.
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Affiliation(s)
- Zhi Wang
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Xudong Jin
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Lingpeng Yan
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, China.,College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Yongzhen Yang
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, China.
| | - Xuguang Liu
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
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Yousaf M, Ahmad M, Zhao ZP. Rapid and highly selective conversion of CO2 to methanol by heterometallic porous ZIF-8. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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10
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Zwitterionic ionic liquids modulating two-dimensional hierarchically porous zeolitic imidazolate framework composites. J Colloid Interface Sci 2022; 620:365-375. [DOI: 10.1016/j.jcis.2022.04.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 01/17/2023]
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11
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Zhang X, Jiao C, Li X, Song X, Plisko TV, Bildyukevich AV, Jiang H. Zn ion-modulated polyamide membrane with enhanced facilitated transport effect for CO2 separation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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12
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Metal organic frameworks as hybrid porous materials for energy storage and conversion devices: A review. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214115] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Kan MY, Lyu Q, Chu YH, Hsu CC, Lu KL, Lin LC, Kang DY. Suppressing Defect Formation in Metal-Organic Framework Membranes via Plasma-Assisted Synthesis for Gas Separations. ACS APPLIED MATERIALS & INTERFACES 2021; 13:41904-41915. [PMID: 34448575 DOI: 10.1021/acsami.1c13134] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Metal-organic frameworks (MOFs) are considered as promising materials for membrane gas separations. Structural defects within a pure MOF membrane can considerably reduce its selectivity and possibly result in a nonselective separation. This work proposes a solution-phase synthesis with dielectric barrier discharge (DBD) plasma to suppress the formation of defects in the pure MOF membrane of CPO-8-BPY. Through comprehensive solid-state characterization with XRD, SEM, XPS, solid-state NMR, and XAFS, DBD plasma is demonstrated to facilitate deprotonation in the H2aip linker, which leads to a smaller and more uniform particle size of CPO-8-BPY. The narrow grain size distribution effectively reduces the pinhole-type defects in the pure CPO-8-BPY membrane and endows it with good ideal selectivity for H2/CH4 (αH2/CH4 = 28.2) and N2/CH4 (αN2/CH4 = 5.4). The selectivity for H2/CH4 of this membrane from a mixed-gas permeation test is found to be 15.4. Molecular simulations are also performed to gain insights into the gas transport properties of this MOF. The results suggest that ligand rotation plays an important role in CPO-8-BPY when being applied to the membrane separation of N2/CH4.
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Affiliation(s)
- Ming-Yang Kan
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Qiang Lyu
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Avenue, Columbus, Ohio 43210, United States
- School of Materials Science and Engineering, China University of Petroleum (East China), No. 66, West Changjiang Road, Huangdao District, Qingdao, Shandong 266580, China
| | - Yu-Hong Chu
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Cheng-Che Hsu
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Kuang-Lieh Lu
- Department of Chemistry, Fu Jen Catholic University, No. 510, Zhongzheng Road, New Taipei 24205, Taiwan
| | - Li-Chiang Lin
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Avenue, Columbus, Ohio 43210, United States
| | - Dun-Yen Kang
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
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Wei D, Tang W, Gan Y, Xu X. Graphene quantum dot-sensitized Zn-MOFs for efficient visible-light-driven carbon dioxide reduction. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00842g] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A new hybrid Zn-Bim-His-1@GQD nanoparticle has been successfully developed for high selectivity of CO2 reduction to yield CH4.
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Affiliation(s)
- Ding Wei
- Xi'an Modern Chemistry Research Institute
- Xi'an
- P. R. China
| | - Wang Tang
- Xi'an Modern Chemistry Research Institute
- Xi'an
- P. R. China
| | - Yundan Gan
- Xi'an Modern Chemistry Research Institute
- Xi'an
- P. R. China
| | - Xiqing Xu
- School of Materials Science & Engineering
- Chang'an University
- Xi'an
- P. R. China
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Wang Y, Weng W, Xu H, Luo Y, Guo D, Li D, Li D. Negatively charged molybdate mediated nitrogen-doped graphene quantum dots as a fluorescence turn on probe for phosphate ion in aqueous media and living cells. Anal Chim Acta 2019; 1080:196-205. [DOI: 10.1016/j.aca.2019.07.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 06/04/2019] [Accepted: 07/10/2019] [Indexed: 01/09/2023]
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16
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Chen YC, Chiang WH, Kurniawan D, Yeh PC, Otake KI, Kung CW. Impregnation of Graphene Quantum Dots into a Metal-Organic Framework to Render Increased Electrical Conductivity and Activity for Electrochemical Sensing. ACS APPLIED MATERIALS & INTERFACES 2019; 11:35319-35326. [PMID: 31423762 DOI: 10.1021/acsami.9b11447] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Graphene quantum dots (GQD) with an average size of 3.1 nm were incorporated into a mesoporous porphyrinic zirconium-based metal-organic framework (MOF) by direct impregnation to render the donor-acceptor charge transfer from GQDs to porphyrinic linkers. The hybrid material still possesses around half porosity of the pristine MOF and shows a 100-fold higher electrical conductivity compared to that of the parent MOF. By utilizing the porphyrinic linkers as catalytically active units, the GQD-MOF material exhibits a better electrochemical sensing activity toward nitrite in aqueous solutions compared to both the pristine MOF and GQD.
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Affiliation(s)
- Yu-Chuan Chen
- Department of Chemical Engineering , National Cheng Kung University , 1 University Road , Tainan City 70101 , Taiwan
| | - Wei-Hung Chiang
- Department of Chemical Engineering , National Taiwan University of Science and Technology , 43, Keelung Road, Sec.4 , Da'an Dist., Taipei City 10607 , Taiwan
| | - Darwin Kurniawan
- Department of Chemical Engineering , National Taiwan University of Science and Technology , 43, Keelung Road, Sec.4 , Da'an Dist., Taipei City 10607 , Taiwan
| | - Pei-Chun Yeh
- Department of Chemical Engineering , National Taiwan University of Science and Technology , 43, Keelung Road, Sec.4 , Da'an Dist., Taipei City 10607 , Taiwan
| | - Ken-Ichi Otake
- Institute for integrated Cell-Materials Science (iCeMS) , Kyoto University , Yoshida-honmachi , Sakyo-ku, Kyoto 606-8501 , Japan
| | - Chung-Wei Kung
- Department of Chemical Engineering , National Cheng Kung University , 1 University Road , Tainan City 70101 , Taiwan
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High Surface Proton Conduction in Nanostructured ZIF-8. NANOMATERIALS 2019; 9:nano9101369. [PMID: 31554306 PMCID: PMC6835583 DOI: 10.3390/nano9101369] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 09/18/2019] [Accepted: 09/19/2019] [Indexed: 11/23/2022]
Abstract
The zeolitic imidazolate framework-8 (ZIF-8) combines a significantly high microporosity with an excellent thermal, chemical, and hydrothermal stability. Here, we demonstrated that ZIF-8 can display significant levels of protonic conductivity through a water-mediated surface transport mechanism associated to the presence of di-coordinated Zn ions revealed by X-ray photoelectron spectroscopy. A set of powders with particle sizes from 2.8 µm down to 80 nm studied by dynamic water vapour sorption analysis was used to demonstrate that water adsorbs predominantly in the micropore cavities of microcrystalline ZIF-8, whereas adsorption on the external surface becomes the dominant contribution for the nanostructured material. Impedance spectroscopy in turn revealed that the protonic conductivity of the nanocrystalline ZIF-8 was two orders of magnitude higher than that of the micron-sized powders, reaching approximately 0.5 mS·cm−1 at 94 °C and 98% relative humidity. Simple relations were derived in order to estimate the potential gains in water uptake and conductivity as a function of the particle size. This new strategy combining particle nanostructuring with surface defects, demonstrated here for one of the most know metal organic framework, is of general application to potentially boost the conductivity of other materials avoiding chemical functionalization strategies that in most if not all cases compromise their chemical stability, particularly under high humidity and high temperature conditions.
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Gu S, Hsieh CT, Ashraf Gandomi Y, Li J, Yue XX, Chang JK. Tailoring fluorescence emissions, quantum yields, and white light emitting from nitrogen-doped graphene and carbon nitride quantum dots. NANOSCALE 2019; 11:16553-16561. [PMID: 31455955 DOI: 10.1039/c9nr05422g] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Highly fluorescent N-doped graphene quantum dots (NGQDs) and graphitic carbon nitride quantum dots (CNQDs, g-C3N4) were synthesized using a solid-phase microwave-assisted (SPMA) technique. The SPMA method, based on the pyrolysis of citric acid and urea with different recipes, is capable of producing quantum dots with coexisting NGQDs and CNQDs at 280 °C within only five minutes. The photoluminescence (PL) emissions from NGQD and CNQDs are strongly dependent on the excitation wavelength and the solvent type, i.e., water, ethanol, and N-methyl pyrrolidinone. The unique attribute of the quantum dots, possessing a multiple chromophoric band-gap structure, originates from the presence of g-C3N4, defect-related emissive traps, and grain boundaries. Thus, an appropriate excitation wavelength induces a conjugated π electron system to fulfill the most probable absorption band, resulting in wavelength-dependent emissions including ultraviolet, visible and infrared light. The quantum yield of the NGQD and CNQD samples can reach as high as 68.1%. Accordingly, a light-emitting device using the combination of the NGQD and CNQD powder embedded polymeric film can emit white-like light with ultra-high power-conversion efficiency.
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Affiliation(s)
- Siyong Gu
- Fujian Provincial Key Laboratory of Functional Materials and Applications, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China
| | - Chien-Te Hsieh
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan. and Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, TN 37996, USA
| | - Yasser Ashraf Gandomi
- Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, TN 37996, USA and Department of Chemical Engineering, Massachusetts Institude of Technology, Cambridge, MA02142, USA
| | - Jianlin Li
- Energy and Transportation Science Division, Oak Ridge National Laboratory, TN 37831, USA
| | - Xing Xing Yue
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jeng-Kuei Chang
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan.
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19
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Rani GS, Vijay M, Prabhavathi Devi BLA. SO
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Cu‐Carbon: A Novel Heterogeneous Catalyst for the Synthesis of β‐Hydroxy 1,2,3‐Triazoles by One Pot Cycloaddition Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201902289] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- G. Sandhya Rani
- Department: Centre for Lipid Science & TechnologyInstitution: CSIR-Indian Institute of Chemical Technology Tarnaka Hyderabad- 500007 Telangana India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad- 201002 India
| | - Manneganti Vijay
- Department: Centre for Lipid Science & TechnologyInstitution: CSIR-Indian Institute of Chemical Technology Tarnaka Hyderabad- 500007 Telangana India
| | - Bethala L. A. Prabhavathi Devi
- Department: Centre for Lipid Science & TechnologyInstitution: CSIR-Indian Institute of Chemical Technology Tarnaka Hyderabad- 500007 Telangana India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad- 201002 India
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20
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Yan Y, Gong J, Chen J, Zeng Z, Huang W, Pu K, Liu J, Chen P. Recent Advances on Graphene Quantum Dots: From Chemistry and Physics to Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1808283. [PMID: 30828898 DOI: 10.1002/adma.201808283] [Citation(s) in RCA: 313] [Impact Index Per Article: 62.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 01/25/2019] [Indexed: 05/18/2023]
Abstract
Graphene quantum dots (GQDs) that are flat 0D nanomaterials have attracted increasing interest because of their exceptional chemicophysical properties and novel applications in energy conversion and storage, electro/photo/chemical catalysis, flexible devices, sensing, display, imaging, and theranostics. The significant advances in the recent years are summarized with comparative and balanced discussion. The differences between GQDs and other nanomaterials, including their nanocarbon cousins, are emphasized, and the unique advantages of GQDs for specific applications are highlighted. The current challenges and outlook of this growing field are also discussed.
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Affiliation(s)
- Yibo Yan
- Shaanxi Institute of Flexible Electronics, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, China
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Jun Gong
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Jie Chen
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Zhiping Zeng
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Wei Huang
- Shaanxi Institute of Flexible Electronics, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, China
| | - Kanyi Pu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Jiyang Liu
- Department of Chemistry, School of Sciences, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou, 310018, China
| | - Peng Chen
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
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21
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Yu H, Zhu W, Zhou H, Liu J, Yang Z, Hu X, Yuan A. Porous carbon derived from metal–organic framework@graphene quantum dots as electrode materials for supercapacitors and lithium-ion batteries. RSC Adv 2019; 9:9577-9583. [PMID: 35520734 PMCID: PMC9062154 DOI: 10.1039/c9ra01488h] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 03/14/2019] [Indexed: 12/20/2022] Open
Abstract
The C@GQD composite was prepared by the combination of metal–organic framework (ZIF-8)-derived porous carbon and graphene quantum dots (GQDs) by a simple method. The resulting composite has a high specific surface area of 668 m2 g−1 and involves numerous micro- and mesopores. As a supercapacitor electrode, the material showed an excellent double-layer capacitance and a high capacity retention of 130 F g−1 at 2 A g−1. The excellent long-term stability was observed even after ∼10 000 charge–discharge cycles. Moreover, the composite as an anode material for a lithium-ion battery exhibited a good reversible capacity and outstanding cycle stability (493 mA h g−1 at 100 mA g−1 after 200 cycles). The synergistic effect of a MOF-derived porous carbon and GQDs was responsible for the improvement of electrochemical properties. The C@GQD composite was prepared by the combination of metal–organic framework (ZIF-8)-derived porous carbon and graphene quantum dots (GQDs) by a simple method.![]()
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Affiliation(s)
- Hui Yu
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang 212003
- China
| | - Wenjian Zhu
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang 212003
- China
| | - Hu Zhou
- School of Material Science and Engineering
- Jiangsu University of Science and Technology
- Zhenjiang 212003
- China
| | - Jianfeng Liu
- Shanghai Waigaoqiao Shipbuilding Co., Ltd
- Shanghai 200137
- China
| | - Zhen Yang
- Shanghai Waigaoqiao Shipbuilding Co., Ltd
- Shanghai 200137
- China
| | - Xiaocai Hu
- Shanghai Waigaoqiao Shipbuilding Co., Ltd
- Shanghai 200137
- China
| | - Aihua Yuan
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang 212003
- China
- Marine Equipment and Technology Institute
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