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Gupta A, Kaur S, Singh H, Garg S, Kumar A, Malhotra E. Quantum dots: a tool for the detection of explosives/nitro derivatives. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:6362-6376. [PMID: 37975188 DOI: 10.1039/d3ay01566a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Nitro derivatives are considered as major environmental pollutants and issues of health concern. In current times, a variety of methods and techniques have been utilized for the sensing of these nitro derivatives. In view of this, the remarkable fluorescence properties of quantum dots (QDs) provide a great opportunity to detect these nitro derivatives. This review highlighted the recent reports of QDs as the sensing material for these nitro derivative explosives. Different modifications in QDs using physical and chemical approaches can be used to improve their sensing output. Various interaction mechanisms have been discussed between QDs and nitro derivatives to change their fluorescence properties. Finally, the current challenges and the perspective for the forthcoming future are provided in the concluding section. We hope this review will be beneficial in guiding the utilization of QDs in sensing applications.
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Affiliation(s)
- Ankush Gupta
- Department of Chemistry, DAV University, Jalandhar 144012, Punjab, India.
| | - Sharanjeet Kaur
- Department of Chemistry, DAV University, Jalandhar 144012, Punjab, India.
| | - Harminder Singh
- Department of Chemistry, DAV University, Jalandhar 144012, Punjab, India.
| | - Shelly Garg
- Department of Mathematics, DAV University, Jalandhar 144012, Punjab, India
| | - Akshay Kumar
- Department of Chemistry and Chemical Sciences, Central University of Jammu, Jammu 181143, India
| | - Ekta Malhotra
- Department of Chemistry, DAV University, Jalandhar 144012, Punjab, India.
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Kalra P, Surana K, Bhattacharya B, Singh G, Durga G. Synergistic behaviour of Silatrane functionalized Perylene Diimide dye and Carbon Quantum Dots for enhancing photovoltaic performance. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
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Pang CM, Cao XY, Xiao Y, Luo SH, Chen Q, Zhou YJ, Wang ZY. N-alkylation briefly constructs tunable multifunctional sensor materials: Multianalyte detection and reversible adsorption. iScience 2021; 24:103126. [PMID: 34632330 PMCID: PMC8487030 DOI: 10.1016/j.isci.2021.103126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 08/25/2021] [Accepted: 09/09/2021] [Indexed: 12/28/2022] Open
Abstract
A series of N-alkyl-substituted polybenzimidazoles (SPBIs), synthesized by simple condensation and N-alkylation, act as functional materials with tunable microstructures and sensing performance. For their controllable morphologies, the formation of nano-/microspheres is observed at the n(RBr)/n(PBI) feed ratio of 5:1. Products with different degrees of alkylation can recognize metal ions and nitroaromatic compounds (NACs). For example, SPBI-c, obtained at the feed ratio of 1:1, can selectively detect Cu2+, Fe3+, and NACs. By contrast, SPBI-a, obtained at the feed ratio of 0.1:1, can exclusively detect Cu2+ with high sensitivity. Their sensing mechanisms have been studied by FT-IR spectroscopy, SEM, XPS, and DFT calculations. Interestingly, the SPBIs can adsorb Cu2+ in solution and show good recyclability. These results demonstrate that polymeric materials with both sensing and adsorption applications can be realized by regulating the alkylation extent of the main chain, thus providing a new approach for the facile synthesis of multifunctional materials.
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Affiliation(s)
- Chu-Ming Pang
- School of Chemistry, South China Normal University; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
- School of Health Medicine, Guangzhou Huashang College, Guangzhou 511300, P. R. China
| | - Xi-Ying Cao
- School of Chemistry, South China Normal University; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
| | - Ying Xiao
- School of Chemistry, South China Normal University; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
| | - Shi-He Luo
- School of Chemistry, South China Normal University; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, P. R. China
| | - Qi Chen
- School of Chemistry, South China Normal University; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
| | - Yong-Jun Zhou
- School of Chemistry, South China Normal University; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
| | - Zhao-Yang Wang
- School of Chemistry, South China Normal University; Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, P. R. China
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Hao X, Dai S, Wang J, Fang Z. Synthesis of blue fluorescent carbon dots and their application in detecting mercury and iodine based on "off-on" mode. LUMINESCENCE 2021; 36:721-732. [PMID: 33300263 DOI: 10.1002/bio.3993] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/25/2020] [Accepted: 12/06/2020] [Indexed: 12/15/2022]
Abstract
In this study, a type of blue-emission fluorescent carbon dot was synthesized using malic acid, urea, and water. This material demonstrates strong stability to heat, ionic strength, and time. It was found that mercury ions can quench the blue fluorescence of the material, and using iodine ions, the fluorescence can be recovered. Hence, we designed an "off-on" mode to detect mercury and iodine ions using the carbon dots. The results showed that this material exhibits good selectivity and recovery rate. Concurrently, imaging experiments showed that this material demonstrates low cytotoxicity and can be used in cell fluorescence imaging. The study concludes that this material has wider application prospects in the future.
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Affiliation(s)
- Xiaoliang Hao
- College of Chemical Engineering, University of Science and Technology Liaoning, Anshan, China
| | - Shujuan Dai
- College of Mining Engineering, University of Science and Technology Liaoning, Anshan, China
| | - Jing Wang
- College of Chemical Engineering, University of Science and Technology Liaoning, Anshan, China
| | - Zhigang Fang
- College of Chemical Engineering, University of Science and Technology Liaoning, Anshan, China
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Su R, Shi J, Pu Y, Wang JX, Wang D, Chen JF. Synthesis of Ultrasmall and Monodisperse Selenium-Doped Carbon Dots from Amino Acids for Free Radical Scavenging. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c03402] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rina Su
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Research Centre of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jie Shi
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Research Centre of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yuan Pu
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Research Centre of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jie-Xin Wang
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Research Centre of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dan Wang
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Research Centre of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jian-Feng Chen
- State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Research Centre of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
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Etefa HF, Imae T, Yanagida M. Enhanced Photosensitization by Carbon Dots Co-adsorbing with Dye on p-Type Semiconductor (Nickel Oxide) Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2020; 12:18596-18608. [PMID: 32237731 DOI: 10.1021/acsami.0c02413] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, the effect of carbon dots (C-dots) on the performance of NiO-based dye-sensitized solar cells (DSSCs) was explored. NiO nanoparticles (NPs) with a rectangular shape (average size: 11.4 × 16.5 nm2) were mixed with C-dots, which were synthesized from citric acid (CA) and ethylenediamine (EDA). A photocathode consisting of a composite of C-dots with NiO NPs (NiO@C-dots) was then used to measure the photovoltaic performance of a DSSC. A power conversion efficiency (PCE) of 9.85% (430 nm LED@50 mW/cm2) was achieved by a DSSC fabricated via the adsorption of N719 sensitizer with a C-dot content of 12.5 wt % at a 1.5:1 EDA/CA molar ratio. This PCE value was far larger than the PCE value (2.44 or 0.152%) obtained for a NiO DSSC prepared without the addition of C-dots or N719, respectively, indicating the synergetic effect by the co-adsorption of C-dots and N719. This synergetically higher PCE of the NiO@C-dot-based DSSC was due to the larger amount of sensitizer adsorbed onto the composites with a larger specific surface area and the faster charge transfer in the NiO@C-dot working electrode. In addition, the C-dots bound to the NiO NPs shorten the band gap of the NiO NPs due to energy transfer and give rise to faster charge separation in the electrode. The most important fact is that C-dots are the main sensitizer, while N719 tightly adsorbs on C-dots and NiO behaves as an accelerator of a positive electron transfer and a restrainer of the electron-hole recombination. These results reveal that C-dots are a remarkable enhancer for NiO NPs in DSSCs and that NiO@C-dots are promising photovoltaic electrode materials for DSSCs.
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Affiliation(s)
- Habtamu Fekadu Etefa
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Keelung Road, Taipei 10607, Taiwan, Republic of China
| | - Toyoko Imae
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Keelung Road, Taipei 10607, Taiwan, Republic of China
- Department of Chemical Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 10607, Taiwan, Republic of China
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 10607, Taiwan, Republic of China
| | - Masatoshi Yanagida
- National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
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Geleta TA, Imae T. Influence of Additives on Zinc Oxide-Based Dye Sensitized Solar Cells. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200001] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tesfaye Abebe Geleta
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Toyoko Imae
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
- Department of Materials Sciences and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
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