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Feng KW, Li Y. Hydrogen Production from Formic Acid by In Situ Generated Ni/CdS Photocatalytic System under Visible Light Irradiation. CHEMSUSCHEM 2023; 16:e202202250. [PMID: 36705939 DOI: 10.1002/cssc.202202250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/27/2023] [Accepted: 01/27/2023] [Indexed: 05/06/2023]
Abstract
Simple and practical noble-metal-free catalyzed hydrogen production from sustainable resources, such as renewable formic acid, is highly desirable. Herein, the development of an efficient photocatalytic hydrogen production from aqueous solution of formic acid using in situ generated Ni/CdS photocatalytic system was described. CdS-Cys (Cys=l-cysteine) quantum dots (QDs) acting as photocatalyst with Ni(OAc)2 as H2 production catalyst precursor, a 94 % yield was obtained within 5 h under visible light irradiation at 50 °C. The average rate of H2 production reached up to 282 μmol mg-1 h-1 with 99.8 % H2 selectivity. Mechanistic studies indicate cooperation of dynamic quenching and static quenching of CdS-Cys QDs by Ni(OAc)2 . Especially, Ni0 , generated in the dynamic quenching, accelerated the electron transfer by acting as an electron outlet and enhancing the stability of CdS to slow down the photocorrosion distinctly, delivering efficient H2 production with high selectivity. Our study will inspire exploration of various efficient non-noble-metal catalysts for practical H2 production from bio-based formic acid.
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Affiliation(s)
- Kai-Wen Feng
- State Key Laboratory of Multiphase Flow in Power Engineering and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, Shaanxi, P. R. China
| | - Yang Li
- State Key Laboratory of Multiphase Flow in Power Engineering and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, Shaanxi, P. R. China
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2
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Liaquat H, Imran M, Latif S, Hussain N, Bilal M. Multifunctional nanomaterials and nanocomposites for sensing and monitoring of environmentally hazardous heavy metal contaminants. ENVIRONMENTAL RESEARCH 2022; 214:113795. [PMID: 35803339 DOI: 10.1016/j.envres.2022.113795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 05/25/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
The applications of conventional sensors are limited by the long response time, high cost, large detection limit, low sensitivity, complicated usage and low selectivity. These sensors are nowadays replaced by Nanocomposite-based modalities and nanomaterials which are known for their high selectivity and physical and chemical properties. These nanosensors effectively detect heavy metal contaminants in the environment as the discharge of heavy metals into natural water as a result of human activity has become a global epidemic. Exposure to these toxic metals might induce many health-related complications, including kidney failure, brain injury, immune disorders, muscle paleness, cardiac damage, nervous system impairment and limb paralysis. Therefore, designing and developing novel sensing systems for the detection and recognition of these harmful metals in various environmental matrices, particularly water, is of extremely important. Emerging nanotechnological approaches in the past two decades have played a key role in overcoming environmentally-related problems. Nanomaterial-based fabrication of chemical nanosensors has widely been applied as a powerful analytical tool for sensing heavy metals. Portability, high sensitivity, on-site detection capability, better device performance and selectivity are all advantages of these nanosensors. The detection and selectivity have been improved using molecular recognition probes for selective binding on different nanostructures. This study aims to evaluate the sensing properties of various nanomaterials such as metal-organic frameworks, fluorescent materials, metal-based nanoparticles, carbon-based nanomaterials and quantum dots and graphene-based nanomaterials and quantum dots for heavy metal ions recognition. All these nano-architectures are frequently served as effective fluorescence probes to directly (or by modification with some large or small biomolecules) sense heavy metal ions for improved selectivity. However, efforts are still needed for the simultaneous designing of multiple metal ion-based detection systems, exclusively in colorimetric or optical fluorescence nanosensors for heavy metal cations.
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Affiliation(s)
- Hina Liaquat
- Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab, Lahore, 54000, Pakistan
| | - Muhammad Imran
- Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab, Lahore, 54000, Pakistan
| | - Shoomaila Latif
- School of Physical Sciences, University of the Punjab, Lahore, 54000, Pakistan
| | - Nazim Hussain
- Center for Applied Molecular Biology (CAMB), University of the Punjab, Lahore, 54000, Pakistan
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China.
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3
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Paimard G, Shamsipur M, Gholivand MB. A three-dimensional hybrid of CdS quantum dots/chitosan/reduced graphene oxide-based sensor for the amperometric detection of ceftazidime. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02494-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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4
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He Z, Zhu J, Li X, Weng GJ, Li JJ, Zhao JW. Surface etching-dependent geometry tailoring and multi-spectral information of Au@AuAg yolk-shell nanostructure with asymmetrical pyramidal core: The application in Co 2+ determination. J Colloid Interface Sci 2022; 625:340-353. [PMID: 35717848 DOI: 10.1016/j.jcis.2022.06.013] [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: 03/03/2022] [Revised: 05/31/2022] [Accepted: 06/04/2022] [Indexed: 10/31/2022]
Abstract
In this paper, a novel Au@AuAg yolk-shell heterogeneous nanostructure is designed as plasmonic spectroscopic sensor based on surface etching for ultrasensitive detection of trace cobalt ions (Co2+). Due to the surface diffusion of gold atoms, the Ag at one end of the core gold nanobipyramids (Au NBPs) is retained, and Au@AuAg yolk-shell nanostructure with asymmetric core is prepared. The alloy shell is coupled to Au NBPs and the interface of asymmetric Ag respectively, the two local surface plasmon resonance bands will have obvious reverse changes depending on the surface morphology of the shell. By using this distinct plasmon response generated by Co2+ induced surface etching, which is driven by discrepancy of double-peaks, a sensing method has been established to realize multi-information spectral detection of Co2+. There is a good linear relationship between the intensity ratio and the Co2+ concentration in the range of 1-100 nM, in which the limit of detection is 0.2 nM. This method further improves the sensing capability by combining multiple pieces of strongly changing spectral information, and demonstrates great advantages and potential of Au@AuAg yolk-shell heterogeneous nanostructure as a multi-information plasmonic sensor based on etched shell surface for trace detection.
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Affiliation(s)
- Zhao He
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jian Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Xin Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Guo-Jun Weng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jian-Jun Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jun-Wu Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
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5
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Uddin I. Onsite visual detection of heavy metal contaminants using impregnated strip. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Zhao R, Wang Z, Tian X, Shu H, Yang Y, Xiao X, Wang Y. Excellent fluorescence detection of Cu 2+in water system using N-acetyl-L-cysteines modified CdS quantum dots as fluorescence probe. NANOTECHNOLOGY 2021; 32:405707. [PMID: 34192671 DOI: 10.1088/1361-6528/ac1016] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 06/30/2021] [Indexed: 05/18/2023]
Abstract
View of the negative influence of metal ions on natural environment and human health, fast and quantitative detection of metals ions in water systems is significant. Ultra-small grain size CdS quantum dots (QDs) modified with N-acetyl-L-cysteines (NALC) (NALC-CdS QDs) are successfully prepared via a facile hydrothermal route. Based on the changes of fluorescence intensity of NALC-CdS QDs solution after adding metal ions, the fluorescence probe made from the NALC-CdS QDs is developed to detect metal ions in water systems. Among various metal ions, the fluorescence of NALC-CdS QDs effectively quenched by the addition of Cu2+, the probe shows high sensitivity and selectivity for detecting Cu2+in other interferential metal ions coexisted system. Importantly, the fluorescence intensity of NALC-CdS QDs changes upon the concentration of Cu2+, the probe displays an excellent linear relationship between the fluorescence quenching rate and the concentration of Cu2+in ranging from 1 to 25μM. Besides, the detected limitation of the probe towards Cu2+as low as 0.48μM. The measurement of Cu2+in real water sample is also carried out using the probe. The results indicate that NALC-CdS QDs fluorescence probe may be a promising candidate for quantitative Cu2+detection in practical application.
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Affiliation(s)
- Rongjun Zhao
- School of Materials and Energy, Yunnan University, 650091 Kunming, People's Republic of China
| | - Zhezhe Wang
- School of Materials and Energy, Yunnan University, 650091 Kunming, People's Republic of China
| | - Xu Tian
- School of Materials and Energy, Yunnan University, 650091 Kunming, People's Republic of China
| | - Hui Shu
- School of Materials and Energy, Yunnan University, 650091 Kunming, People's Republic of China
| | - Yue Yang
- Department of Physics, Yunnan University, 650091 Kunming, People's Republic of China
| | - Xuechun Xiao
- School of Materials and Energy, Yunnan University, 650091 Kunming, People's Republic of China
| | - Yude Wang
- Key Lab of Quantum Information of Yunnan Province, Yunnan University, 650091 Kunming, People's Republic of China
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7
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Preeyanka N, Sarkar M. Probing How Various Metal Ions Interact with the Surface of QDs: Implication of the Interaction Event on the Photophysics of QDs. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:6995-7007. [PMID: 34047563 DOI: 10.1021/acs.langmuir.1c00548] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
With an aim to understand the mechanism of interaction between quantum dots (QDs) and various metal ions, fluorescence response of less-toxic and water-soluble glutathione-capped Zn-Ag-In-S (GSH@ZAIS) QDs in the presence of different metal ions has been investigated at both ensemble and single-molecule level. Fourier transform infrared (FT-IR) spectroscopy has also been performed to obtain a molecular level understanding of the interaction event. The steady-state data reveal no significant change in QD emission for alkali and alkaline earth metal ions, while there is a decrease in fluorescence intensity for transition metal (TM) and some heavy transition metal (HTM) ions. Interestingly, a significant fluorescent enhancement (FE) (19-96%) of QDs is found for Cd2+ ions. Time-resolved fluorescence studies reveal that all the three decay components of QDs decrease in the presence of first-row TM ions. However, in the case of Cd2+, the shorter component is found to increase while the longer one decreases. The analysis of data reveals that photoinduced electron transfer is responsible for fluorescence quenching of QDs in the presence of first-row TM ions and destruction/removal of trap/defect states in the case of Cd2+ causes the FE. In FT-IR experiments, a prominent peak at 670 cm-1, corresponding to Cd-S stretching vibrations, indicates strong ground-state interactions between the -SH of GSH and Cd2+ ions. Moreover, a decrease in the diffusion coefficient of QDs in the presence of Cd2+ ions during fluorescence correlation spectroscopy (FCS) studies further substantiates the removal of GSH by Cd2+ from the surface of QDs. The optical output of this study demonstrates that ZAIS can be used for fluorescence signaling of various metal ions and in particular selective detection of Cd2+. More importantly, these results also suggest that Cd2+ can effectively be used for enhancing the fluorescence quantum yield of thiol-capped QDs such as GSH@ZAIS.
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Affiliation(s)
- Naupada Preeyanka
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Jatni, Khurda, Bhubaneswar 752050, Odisha, India
- Homi Bhabha National Institute (HBNI), Mumbai 400 094, India
- Centre for Interdisciplinary Sciences (CIS), NISER, Jatni, Khurda, Bhubaneswar 752050, Odisha, India
| | - Moloy Sarkar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Jatni, Khurda, Bhubaneswar 752050, Odisha, India
- Homi Bhabha National Institute (HBNI), Mumbai 400 094, India
- Centre for Interdisciplinary Sciences (CIS), NISER, Jatni, Khurda, Bhubaneswar 752050, Odisha, India
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8
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Zikalala N, Parani S, Oluwafemi OS. Facile aqueous synthesis of ZnInS quantum dots and its application for selective detection of Co 2+Ions. NANOTECHNOLOGY 2021; 32:295503. [PMID: 33761493 DOI: 10.1088/1361-6528/abf193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
The synthesis of ZnInS (ZIS) quantum dots (QDs) in aqueous medium using thioglycolic acid (TGA) and sodium citrate as dual capping agents has been reported. The as-synthesized ZIS QDs were water soluble, emitting at 512 nm and nearly spherical in shape with average particle size of 8.9 ± 1.4 nm. The as-synthesized ZIS QDs were tested for its fluorescence response against different metal ions and the results revealed that ZIS QDs were selectively quenched by Co2+ions compared to other ions. The fluorescence sensing experiment showed that ZIS QDs has a linear response against the concentration of Co2+ions (0.1-100μM ) with the detection limit of 0.099μM. Based on the transmission electron microscope and absorption spectroscopy analyzes, the fluorescence quenching is attributed to the formation of surface ligand-metal complex (TGA-Co2+ions) which caused aggregation of the QDs. The present method explores the synthesis of zero-dimentional ZIS QDs and its potential in the selective detection of Co2+ions in aqueous solution.
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Affiliation(s)
- Nkosingiphile Zikalala
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, PO Box 17011, Doornfontein 2028, Johannesburg, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, PO Box 17011, Doornfontein 2028, Johannesburg, South Africa
| | - Sundararajan Parani
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, PO Box 17011, Doornfontein 2028, Johannesburg, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, PO Box 17011, Doornfontein 2028, Johannesburg, South Africa
| | - Oluwatobi Samuel Oluwafemi
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, PO Box 17011, Doornfontein 2028, Johannesburg, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, PO Box 17011, Doornfontein 2028, Johannesburg, South Africa
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9
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Kurc B, Pigłowska M, Rymaniak Ł, Fuć P. Modern Nanocomposites and Hybrids as Electrode Materials Used in Energy Carriers. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:538. [PMID: 33669863 PMCID: PMC7923237 DOI: 10.3390/nano11020538] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/07/2021] [Accepted: 02/16/2021] [Indexed: 12/17/2022]
Abstract
Over the past decades, the application of new hybrid materials in energy storage systems has seen significant development. The efforts have been made to improve electrochemical performance, cyclic stability, and cell life. To achieve this, attempts have been made to modify existing electrode materials. This was achieved by using nano-scale materials. A reduction of size enabled an obtainment of changes of conductivity, efficient energy storage and/or conversion (better kinetics), emergence of superparamagnetism, and the enhancement of optical properties, resulting in better electrochemical performance. The design of hybrid heterostructures enabled taking full advantage of each component, synergistic effect, and interaction between components, resulting in better cycle stability and conductivity. Nowadays, nanocomposite has ended up one of the foremost prevalent materials with potential applications in batteries, flexible cells, fuel cells, photovoltaic cells, and photocatalysis. The main goal of this review is to highlight a new progress of different hybrid materials, nanocomposites (also polymeric) used in lithium-ion (LIBs) and sodium-ion (NIBs) cells, solar cells, supercapacitors, and fuel cells and their electrochemical performance.
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Affiliation(s)
- Beata Kurc
- Institute of Chemistry and Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland;
| | - Marita Pigłowska
- Institute of Chemistry and Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland;
| | - Łukasz Rymaniak
- Institute of Combustion Engines and Powertrains, Faculty of Civil and Transport Engineering, Poznan University of Technology, Piotrowo 3, PL-60965 Poznan, Poland; (Ł.R.); (P.F.)
| | - Paweł Fuć
- Institute of Combustion Engines and Powertrains, Faculty of Civil and Transport Engineering, Poznan University of Technology, Piotrowo 3, PL-60965 Poznan, Poland; (Ł.R.); (P.F.)
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10
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Kurshanov DA, Khavlyuk PD, Baranov MA, Dubavik A, Rybin AV, Fedorov AV, Baranov AV. Magneto-Fluorescent Hybrid Sensor CaCO 3-Fe 3O 4-AgInS 2/ZnS for the Detection of Heavy Metal Ions in Aqueous Media. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4373. [PMID: 33008133 PMCID: PMC7579003 DOI: 10.3390/ma13194373] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 02/07/2023]
Abstract
Heavy metal ions are not subject to biodegradation and could cause the environmental pollution of natural resources and water. Many of the heavy metals are highly toxic and dangerous to human health, even at a minimum amount. This work considered an optical method for detecting heavy metal ions using colloidal luminescent semiconductor quantum dots (QDs). Over the past decade, QDs have been used in the development of sensitive fluorescence sensors for ions of heavy metal. In this work, we combined the fluorescent properties of AgInS2/ZnS ternary QDs and the magnetism of superparamagnetic Fe3O4 nanoparticles embedded in a matrix of porous calcium carbonate microspheres for the detection of toxic ions of heavy metal: Co2+, Ni2+, and Pb2+. We demonstrate a relationship between the level of quenching of the photoluminescence of sensors under exposure to the heavy metal ions and the concentration of these ions, allowing their detection in aqueous solutions at concentrations of Co2+, Ni2+, and Pb2+ as low as ≈0.01 ppm, ≈0.1 ppm, and ≈0.01 ppm, respectively. It also has importance for application of the ability to concentrate and extract the sensor with analytes from the solution using a magnetic field.
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Affiliation(s)
| | | | | | | | | | | | - Alexander V. Baranov
- Center of Information Optical Technology, ITMO University, 49 Kronverksky Prospekt, 197101 St. Petersburg, Russia; (D.A.K.); (P.D.K.); (M.A.B.); (A.D.); (A.V.R.); (A.V.F.)
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11
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Mrad R, Poggi M, Ben Chaâbane R, Negrerie M. Role of surface defects in colloidal cadmium selenide (CdSe) nanocrystals in the specificity of fluorescence quenching by metal cations. J Colloid Interface Sci 2020; 571:368-377. [DOI: 10.1016/j.jcis.2020.03.058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/11/2020] [Accepted: 03/16/2020] [Indexed: 12/27/2022]
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12
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Ding M, Wang K, Fang M, Zhu W, Du L, Li C. MPA-CdTe quantum dots as "on-off-on" sensitive fluorescence probe to detect ascorbic acid via redox reaction. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 234:118249. [PMID: 32179461 DOI: 10.1016/j.saa.2020.118249] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/08/2020] [Accepted: 03/08/2020] [Indexed: 05/12/2023]
Abstract
Mercaptopropionic acid (MPA) capped CdTe quantum dots (MPA-CdTe QDs) were synthesized in aqueous medium by hydrothermal method, which modified by Fe3+ could be used as a fluorescent probe to detect ascorbic acid (AA). MPA-CdTe QDs fluorescence probe could be used as successive sensor for metal ions and AA with "on-off-on" process. The fluorescence of QDs was quenched after adding Fe3+ to MPA-CdTe QDs. Then, the fluorescence of the Fe3+@MPA-CdTe QDs can be sensitively turned on by AA to give an "on-off-on" fluorescence response according to the oxidation-reduction between Fe3+ and AA. There was a linear relationship between fluorescence intensity quenching value and the concentration of Fe3+ in the range of 2-10 μM since Fe3+ sensitively reacted with CdTe QDs. The linear detection range for AA was 0.1-1 μM with a limit of detection of 6.6 nM. The principle is proved by fluorescence emission spectroscopy, nuclear magnetic resonance spectroscopy. The proposed method is successfully used to detect the AA in human plasma sample.
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Affiliation(s)
- Meiling Ding
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China; AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China; Anhui Province Key Laboratory of Environment-friendly Polymer Materials, Anhui University, Hefei 230601, China
| | - Kun Wang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China; AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China; Anhui Province Key Laboratory of Environment-friendly Polymer Materials, Anhui University, Hefei 230601, China
| | - Min Fang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China; AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China; Anhui Province Key Laboratory of Environment-friendly Polymer Materials, Anhui University, Hefei 230601, China
| | - Weiju Zhu
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China; AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China; Anhui Province Key Laboratory of Environment-friendly Polymer Materials, Anhui University, Hefei 230601, China
| | - Longchao Du
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China; AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China; Anhui Province Key Laboratory of Environment-friendly Polymer Materials, Anhui University, Hefei 230601, China
| | - Cun Li
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China; AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China; Anhui Province Key Laboratory of Environment-friendly Polymer Materials, Anhui University, Hefei 230601, China.
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13
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Dhar S, Sen B, Mukhopadhyay SK, Mukherjee T, Chattopadhyay AP, Pramanik S. CdS quantum dots embedded in PVP: Inorganic phosphate ion sensing in real sample and its antimicrobial activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 234:118256. [PMID: 32217451 DOI: 10.1016/j.saa.2020.118256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 06/10/2023]
Abstract
Polyvinyl-pyrrolidone capped spherical cadmium sulphide quantum dots (CdS-PVP QDs), 2-6 nm in size, were developed as a selective turn-on fluorescence nanosensor for monohydrogen phosphate ion (HPO42-) in aqueous medium. Fluorescence intensity of CdS-PVP QDs significantly increased with addition of HPO42- ions, whereas the other common inorganic ions had very little effect on the fluorescence intensity. The proposed sensor may be efficiently used for the detection of HPO42- ions at a low level of concentration up to 213 nM in real urine sample. Cell imaging study indicates that the CdS-PVP QDs are cell permeable and can detect the intracellular distribution of HPO42- ions under fluorescence microscope. The CdS-PVP QDs showed considerable activity against Staphylococcus aureus also.
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Affiliation(s)
- Swastika Dhar
- Department of Chemistry, Kalyani University, Kalyani, Nadia 741235, India
| | - Buddhadeb Sen
- Department of Chemistry, The University of Burdwan, Burdwan 713104, India
| | | | - Trinetra Mukherjee
- Department of Microbiology, The University of Burdwan, , Burdwan 713104, India
| | | | - Sadhan Pramanik
- Department of Chemistry, Hooghly Womens College, Hooghly 712103, India
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14
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Quantum dots based “On-Off” fluorescence probe for the selective detection of Cu2+ ion: Application to real sample analysis. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.cdc.2019.100300] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Wang H, Qian H, Luo Z, Zhang K, Shen X, Zhang Y, Zhang M, Liebner F. ZCIS/ZnS QDs fluorescent aerogels with tunable emission prepared from porous 3D nanofibrillar bacterial cellulose. Carbohydr Polym 2019; 224:115173. [PMID: 31472861 DOI: 10.1016/j.carbpol.2019.115173] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/15/2019] [Accepted: 08/05/2019] [Indexed: 11/18/2022]
Abstract
Bacterial cellulose (BC) features a nanofibrillar network structure that can provide a good template for quantum dots (QDs), to overcome the fluorescence quenching-effect of QDs in polymer composites. Here, we fabricated novel fluorescent aerogels with tunable emission by covalently binding environmentally-friendly ZnS(CuInS2)/ZnS core-shell quantum dots along the nanofibrillar BC. A new ligand of 3-(mercaptopropyl)trimethoxysilane allows QDs to transfer from toluene to alcohol solvent and stably bind to the BC. After supercritical CO2 drying, the resulting BC-QDs aerogels maintain the porous nanofibrillar morphology of BC with ultra-light-weight, the QDs are well-distributed along the BC fiber surfaces without aggregation. The emission wavelength can be tuned in a wide range from 470 to 750 nm by simply adjusting the QDs core component or shell layers. This work provides a new approach for fabricating QDs-polymer hydrogels and aerogels with well distributed QDs via chemical binding that potential as smart sensor, catalysis, and 3D display applications.
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Affiliation(s)
- Huiqing Wang
- Department of Polymer Science and Engineering, School of Chemical Engineering, Hefei University of Technology, Anhui 230009, China.
| | - Hao Qian
- Department of Polymer Science and Engineering, School of Chemical Engineering, Hefei University of Technology, Anhui 230009, China
| | - Zhixin Luo
- Department of Polymer Science and Engineering, School of Chemical Engineering, Hefei University of Technology, Anhui 230009, China
| | - Kaiyuan Zhang
- Department of Polymer Science and Engineering, School of Chemical Engineering, Hefei University of Technology, Anhui 230009, China
| | - Xiaofei Shen
- Department of Polymer Science and Engineering, School of Chemical Engineering, Hefei University of Technology, Anhui 230009, China
| | - Yan Zhang
- Department of Polymer Science and Engineering, School of Chemical Engineering, Hefei University of Technology, Anhui 230009, China
| | - Mingtao Zhang
- Department of Polymer Science and Engineering, School of Chemical Engineering, Hefei University of Technology, Anhui 230009, China
| | - Falk Liebner
- Division of Chemistry of Renewables, Department of Chemistry, University of Natural Resources and Life Sciences, Tulln3430, Austria
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16
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Mehta A, Mishra A, Basu S, Shetti NP, Reddy KR, Saleh TA, Aminabhavi TM. Band gap tuning and surface modification of carbon dots for sustainable environmental remediation and photocatalytic hydrogen production - A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 250:109486. [PMID: 31518793 DOI: 10.1016/j.jenvman.2019.109486] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 08/27/2019] [Accepted: 08/27/2019] [Indexed: 05/06/2023]
Abstract
Energy and water are the two major issues facing the modern mankind. Providing freshwater requires energy and producing energy uses water. In the present-day scenario, both these routes face growing problems and limitations. Energy crisis has risen due to the depletion of fossil fuels that cause pollution to water bodies making the water unusable for human consumption. In this regard, semiconductor nanocrystals with luminescent properties or carbon quantum dots (CQDs) are the newly developed nanomaterials whose distinctive photo-physical characteristics are focusing to a new generation of robust materials and sensors for sustainable development. In this review, advances in surface and band gap modification of CQDs to improve the activity of nanomaterials will be discussed with special reference to some specific CQDs exhibiting special optical properties for water treatment/splitting applications. Recent advances on CQDs nanocomposites including their applications in photodegradation of organic pollutants, sensing of heavy metal ions in water and water splitting are discussed critically to narrate the future prospects in this field. Challenges and limitations for further improvement are covered to provide smart choices for creating sustainability of benign environment and economic benefits.
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Affiliation(s)
- Akansha Mehta
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147004, India
| | - Amit Mishra
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147004, India
| | - Soumen Basu
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147004, India.
| | - Nagaraj P Shetti
- Electrochemistry and Materials Group, Department of Chemistry, K.L.E. Institute of Technology, Hubballi, 580 030, Visvesvaraya Technological University, Karnataka, India
| | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - Tawfik A Saleh
- Chemistry Department, King Fahd University of Petroleum & Minerals, B.O. Box: 346, Dhahran, 31261, Saudi Arabia
| | - Tejraj M Aminabhavi
- Pharmaceutical Engineering, Sonia College of Pharmacy, Dharwad, 580 002, Karnataka, India.
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17
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Samadi-Maybodi A, Farzinia H. Comprehensive spectroscopy studies of photoelimination process of toxic metals ions from aqueous solution by using CdS and CdS@magnetized powder activated carbon assisted magnetic stir bar. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 218:127-135. [PMID: 30959344 DOI: 10.1016/j.saa.2019.03.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 03/20/2019] [Accepted: 03/28/2019] [Indexed: 06/09/2023]
Abstract
In this study, a simple and novel photocatalytic tool was proposed and developed for photoelimination of toxic metal ions in aqueous solution. CdS quantum dots capped with thioglycolic acid and CdS @ magnetized powder activated carbon (CdS@MPAC) fixed on magnetic stir bar was constructed and applied for photoelimination of toxic metal ions in aqueous solutions. The production and contribution of hydroxyl (OH) and superoxide (O2-) species generated during photoelimination process were investigated. The photoelimination of Cd(II), Co(II), Cu(II), Mn(II), Ni(II) and Pb(II) metal ions was performed at neutral pH (7.0 ± 0.1) with the same experimental circumstances. Maximum removal efficiency was achieved with 0.360 M of CdS@MPAC under 3.0 h daylight irradiation. Photoelimination mechanisms of Cu2+ with CdS QDs were also investigated. Finally, this method was successfully applied for elimination of toxic metal ions from real sample.
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Affiliation(s)
| | - Hajar Farzinia
- Analytical Division, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
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18
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Zhang Z, Ma X, Jia M, Li B, Rong J, Yang X. Deposition of CdTe quantum dots on microfluidic paper chips for rapid fluorescence detection of pesticide 2,4-D. Analyst 2019; 144:1282-1291. [PMID: 30548046 DOI: 10.1039/c8an02051e] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Rapid detection of pesticides in fruits is an ongoing challenge. The objective of the present study was to develop novel fluorescent microfluidic paper chips for specific recognition and sensitive detection of the pesticide 2,4-D through the electron-transfer-induced fluorescence quenching mechanism. CdTe quantum dots (QDs) were deposited onto cellulose paper (base material) to yield imprinted paper chips (paper@QDs@MIPs). This method allows the transferability of the molecularly imprinted fluorescence sensor from the liquid phase to the solid phase (paper base) for rapid and portable analysis. The resultant imprinted paper chips were effectively characterized, and they exhibited ideal ordered spatial network structure, chemical stability, and fluorescence property. The paper@QDs@MIPs showed that 2,4-D binding significantly reduced the fluorescence intensity within less than 18 min, and it achieved satisfactory linearity in the range of 0.83-100 μM and high detectability of 90 nM. The recognition specificity for 2,4-D relative to its analogues was shown, and the imprinting factor was 2.13. In addition, the recoveries of the spiked bean sprouts at three concentration levels ranged within 94.2-107.0%, with a relative standard deviation of less than 5.9%. Collectively, the device provided an effective platform for rapid recognition, convenience, and detection of trace food pollutants in complex matrices, thereby ensuring food safety and further promoting surface imprinting studies.
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Affiliation(s)
- Zhong Zhang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, China.
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19
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Anand SK, Sivasankaran U, Jose AR, Kumar KG. Interaction of tetracycline with l-cysteine functionalized CdS quantum dots - Fundamentals and sensing application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 213:410-415. [PMID: 30731253 DOI: 10.1016/j.saa.2019.01.068] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 01/17/2019] [Accepted: 01/19/2019] [Indexed: 06/09/2023]
Abstract
The present paper reports l-cysteine functionalized CdS quantum dots (QDs) as a simple and highly selective turn-off fluorescence sensor for the determination of tetracycline (TET). The unauthorized use of TET may pose serious health hazards in human beings and hence the detection and determination has become very essential. In this regard, we have developed a sensor that enable the quantification of TET in the range 6.00 × 10-4 M to 1.50 × 10-5 M with a limit of detection 7.78 × 10-6 M, under optimized conditions. Steady state and time resolved fluorescence spectroscopic studies were used for investigating the mechanism of quenching and was found to be a combination of static and dynamic processes. The analytical application of the proposed sensor was investigated in pharmaceutical formulation.
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Affiliation(s)
- Sanu K Anand
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682022, India
| | - Unni Sivasankaran
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682022, India
| | - Ammu Rosin Jose
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682022, India
| | - K Girish Kumar
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682022, India.
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20
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Phosphorimetric determination of 4-nitrophenol using mesoporous molecular imprinting polymers containing manganese(II)-doped ZnS quantum dots. Mikrochim Acta 2019; 186:249. [DOI: 10.1007/s00604-019-3362-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 03/08/2019] [Indexed: 02/07/2023]
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21
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Llano-Suárez P, Bouzas-Ramos D, Costa-Fernández JM, Soldado A, Fernández-Argüelles MT. Near-infrared fluorescent nanoprobes for highly sensitive cyanide quantification in natural waters. Talanta 2019; 192:463-470. [DOI: 10.1016/j.talanta.2018.09.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 09/14/2018] [Accepted: 09/19/2018] [Indexed: 01/13/2023]
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22
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Di Tocco A, Porcal GV, Riberi WI, Zon MA, Fernández H, Robledo SN, Arévalo FJ. Synthesis of stable CdS nanocrystals using experimental design: optimization of the emission. NEW J CHEM 2019. [DOI: 10.1039/c9nj02145k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
This work investigates CdS nanocrystal synthesis by applying chemometric tools. Very good reproducibility of nanocrystals of CdS was obtained.
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Affiliation(s)
- Aylén Di Tocco
- Grupo de Electroanalítica (GEANA)
- Departamento de Química
- Facultad de Ciencias Exactas
- Físico-Químicas y Naturales
- Universidad Nacional de Río Cuarto
| | - Gabriela Valeria Porcal
- Grupo de Fotoquímica
- Departamento de Química
- Facultad de Ciencias Exactas
- Físico-Químicas y Naturales
- Universidad Nacional de Río Cuarto
| | - Walter Iván Riberi
- Grupo de Electroanalítica (GEANA)
- Departamento de Química
- Facultad de Ciencias Exactas
- Físico-Químicas y Naturales
- Universidad Nacional de Río Cuarto
| | - María Alicia Zon
- Grupo de Electroanalítica (GEANA)
- Departamento de Química
- Facultad de Ciencias Exactas
- Físico-Químicas y Naturales
- Universidad Nacional de Río Cuarto
| | - Héctor Fernández
- Grupo de Electroanalítica (GEANA)
- Departamento de Química
- Facultad de Ciencias Exactas
- Físico-Químicas y Naturales
- Universidad Nacional de Río Cuarto
| | - Sebastian Noel Robledo
- Grupo de Electroanalítica (GEANA)
- Departamento de Tecnología Química
- Facultad de Ingeniería
- Universidad Nacional de Río Cuarto
- Instituto para el desarrollo agroindustrial y de la salud (IDAS)
| | - Fernando Javier Arévalo
- Grupo de Electroanalítica (GEANA)
- Departamento de Química
- Facultad de Ciencias Exactas
- Físico-Químicas y Naturales
- Universidad Nacional de Río Cuarto
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23
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Chen B, Liu J, Yang T, Chen L, Hou J, Feng C, Huang CZ. Development of a portable device for Ag + sensing using CdTe QDs as fluorescence probe via an electron transfer process. Talanta 2018; 191:357-363. [PMID: 30262071 DOI: 10.1016/j.talanta.2018.08.088] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/25/2018] [Accepted: 08/31/2018] [Indexed: 02/03/2023]
Abstract
Ag+ as one of the most commonly seen toxic heavy metal ions is involved in numerous vital biological processes, which would cause fatal damages and environmental contamination when Ag+ is excessive. In the present work, CdTe quantum dots (QDs) with green, orange, and red emission capped by mercaptoacetic acid (TGA) were synthesized at one time by controlling the synthesis time and utilized for Ag+ detection. Both fluorescence spectral red-shift and intensity decrease could be used for Ag+ discrimination. Fluorescence lifetime, Zeta potential, and XRD, etc. were carried out to analyze the detection mechanism. Results displayed that surface passivation and electron transfer due to binding effects of Ag+ to Te atom on traps of QDs could be relied on to explain the sensing mechanism. Additionally, in accordance with PCA analysis, Ag+ could be also be successfully differentiated from Hg2+ and the other metal ions. Importantly, a home-made portable device based on a 32 bit embed Micro Control Unit (MCU) system was first proposed for Ag+ detection. The power supply system adopt the mini-sized lithium cell instead of the power supply system, which ensure its practical applicability. The relative position of light source and detector is set at 90° to minimize the interference. According to the detection results, the linear detection range using the device was from 5 nM to 200 nM (with a larger coefficient of determination, R2), and the detection limit was calculated to be about 5 nM, which indicated that this proposed method and device could fulfil the practical application requirements.
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Affiliation(s)
- Bin Chen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, Chongqing Key Laboratory of Non-linear Circuit and Intelligent Information Processing, College of Electronic and Information Engineering, Southwest University, Chongqing 400715, China; Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China
| | - Junjie Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China
| | - Tong Yang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China
| | - Lin Chen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China
| | - Jia Hou
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China
| | - Changhao Feng
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, Chongqing Key Laboratory of Non-linear Circuit and Intelligent Information Processing, College of Electronic and Information Engineering, Southwest University, Chongqing 400715, China; Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, China.
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24
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Du Y, Liu H. Silsesquioxane-Based Hexaphenylsilole-Linked Hybrid Porous Polymer as an Effective Fluorescent Chemosensor for Metal Ions. ChemistrySelect 2018. [DOI: 10.1002/slct.201703133] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Yajing Du
- Key Laboratory of Special Functional Aggregated Materials Ministry of Education; School of Chemistry and Chemical Engineering; Shandong University; Jinan P. R. China
| | - Hongzhi Liu
- Key Laboratory of Special Functional Aggregated Materials Ministry of Education; School of Chemistry and Chemical Engineering; Shandong University; Jinan P. R. China
- Key Laboratory of Organosilicon and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 31112 P. R. China
- Wuxi Detan Technology Co., Ltd; No. 588 Jinhui Rd. Huishan District, Wuxi Jiangsu P. R. China
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25
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Bai X, Zhang X, Gu H, Li F, Huang W, Liang L, Ye Z. Highly selective colorimetric sensing of Cu 2+ using a Schiff base derivative immobilized on polyvinyl alcohol microspheres. NEW J CHEM 2018. [DOI: 10.1039/c8nj01973h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PVA-SH microspheres could selectively detect Cu2+ by visible color change.
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Affiliation(s)
- Xue Bai
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| | - Xudong Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| | - Haixin Gu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| | - Fengjie Li
- Laboratory of Eco-Environmental Engineering Research
- College of Resources and Environment
- Huazhong Agricultural University
- Wuhan
- China
| | - Wei Huang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| | - Lu Liang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| | - Zhengfang Ye
- Department of Environmental Engineering
- Peking University
- The Key Laboratory of Water and Sediment Sciences
- Ministry of Education
- Beijing 100871
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26
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Hsu SK, Chang ZJ, Chang SM. Fluorescent Determination of Copper(II) in Industrial Wastewater Using Thiol-Capped Cadmium Sulfide–Zinc Sulfide Quantum Dots as the Probe. ANAL LETT 2017. [DOI: 10.1080/00032719.2017.1338715] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Shu-Kang Hsu
- Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Zhao-Jun Chang
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Sue-Min Chang
- Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan
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27
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Wang S, Li L, Jin S, Li W, Hang W, Yan X. Rapid and Quantitative Measurement of Single Quantum Dots in a Sheath Flow Cuvette. Anal Chem 2017; 89:9857-9863. [PMID: 28820244 DOI: 10.1021/acs.analchem.7b01885] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Semiconducting quantum dots (QDs) are finding a wide range of biomedical applications due to their intense fluorescence brightness and long-term photostability. Here, we report precise quantification of the fluorescence intensity of single QDs on a laboratory-built high-sensitivity flow cytometer (HSFCM). The nearly uniform illumination of the particles at the intense portions of the radiation field resulted in narrowly distributed signals with high signal-to-noise ratios. By analysis of thousands of QDs individually in as little time as 1 min, intrinsic polydispersity was quickly revealed in a statistically robust manner. Applications of this technique in QD quality assessment, study of metal ion influence, and evaluation of aggregation upon biomolecule coupling are presented. Moreover, an accurate measurement of the QD particle concentration was achieved via single-particle enumeration. HSFCM is believed to provide a powerful characterization tool for QD synthesis and application development.
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Affiliation(s)
- Shuo Wang
- Collaborative Innovation Center of Chemistry for Energy Material, MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P. R. China
| | - Lihong Li
- Collaborative Innovation Center of Chemistry for Energy Material, MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P. R. China
| | - Shenghao Jin
- Collaborative Innovation Center of Chemistry for Energy Material, MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P. R. China
| | - Weifeng Li
- Collaborative Innovation Center of Chemistry for Energy Material, MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P. R. China
| | - Wei Hang
- Collaborative Innovation Center of Chemistry for Energy Material, MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P. R. China
| | - Xiaomei Yan
- Collaborative Innovation Center of Chemistry for Energy Material, MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P. R. China
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28
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Du W, Liao L, Yang L, Qin A, Liang A. Aqueous synthesis of functionalized copper sulfide quantum dots as near-infrared luminescent probes for detection of Hg 2+, Ag + and Au 3. Sci Rep 2017; 7:11451. [PMID: 28904338 PMCID: PMC5597581 DOI: 10.1038/s41598-017-10904-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 08/16/2017] [Indexed: 01/12/2023] Open
Abstract
Stable water-soluble copper sulfide(Cu2S) quantum dots(QDs) with near-infrared emission were synthesized using N-acetyl-L-cysteine(NAC) as a modifier in aqueous solution and nitrogen atmosphere at room temperature. The product was characterized by TEM, XRD, XPS, FT-IR, FL and UV-VIS spectrometers. Effects of preparation conditions such as pH values, the molar ratio of reactants, temperature, and metal ions on the fluorescence properties of Cu2S QDs were discussed. Under optimal conditions, the prepared Cu2S QDs with average diameter about 2-5 nm show a near-infrared emission at 770 nm with the excitation wavelength of 466 nm, and have a good detection sensitivity for ions of Hg2+, Ag+ and Au3+, based on the characteristic of fluorescence quenching. The fluorescence quenching mechanism was proposed via electron transfer with cation exchange, which based on the theory of Hard-Soft-Acid-Base (HSAB) and Ksp value of metal-sulfide.
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Affiliation(s)
- Weilin Du
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education, Guangxi Key Laboratory in Universities of Clean Metallurgy and Comprehensive Utilization for Non-ferrous Metals Resources, College of Materials science & engineering, Guilin University of Technology, Guilin, China
| | - Lei Liao
- College of Environment science & engineering, Guilin University of Technology, Guilin, China
| | - Li Yang
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education, Guangxi Key Laboratory in Universities of Clean Metallurgy and Comprehensive Utilization for Non-ferrous Metals Resources, College of Materials science & engineering, Guilin University of Technology, Guilin, China
| | - Aimiao Qin
- Key Lab New Processing Technology for Nonferrous Metals & Materials Ministry of Education, Guangxi Key Laboratory in Universities of Clean Metallurgy and Comprehensive Utilization for Non-ferrous Metals Resources, College of Materials science & engineering, Guilin University of Technology, Guilin, China.
| | - Aihui Liang
- College of Environment & Resource, Guangxi Normal University, Guilin, China.
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29
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Coughlan C, Ibáñez M, Dobrozhan O, Singh A, Cabot A, Ryan KM. Compound Copper Chalcogenide Nanocrystals. Chem Rev 2017; 117:5865-6109. [PMID: 28394585 DOI: 10.1021/acs.chemrev.6b00376] [Citation(s) in RCA: 327] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This review captures the synthesis, assembly, properties, and applications of copper chalcogenide NCs, which have achieved significant research interest in the last decade due to their compositional and structural versatility. The outstanding functional properties of these materials stems from the relationship between their band structure and defect concentration, including charge carrier concentration and electronic conductivity character, which consequently affects their optoelectronic, optical, and plasmonic properties. This, combined with several metastable crystal phases and stoichiometries and the low energy of formation of defects, makes the reproducible synthesis of these materials, with tunable parameters, remarkable. Further to this, the review captures the progress of the hierarchical assembly of these NCs, which bridges the link between their discrete and collective properties. Their ubiquitous application set has cross-cut energy conversion (photovoltaics, photocatalysis, thermoelectrics), energy storage (lithium-ion batteries, hydrogen generation), emissive materials (plasmonics, LEDs, biolabelling), sensors (electrochemical, biochemical), biomedical devices (magnetic resonance imaging, X-ray computer tomography), and medical therapies (photochemothermal therapies, immunotherapy, radiotherapy, and drug delivery). The confluence of advances in the synthesis, assembly, and application of these NCs in the past decade has the potential to significantly impact society, both economically and environmentally.
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Affiliation(s)
- Claudia Coughlan
- Department of Chemical Sciences and Bernal Institute, University of Limerick , Limerick, Ireland
| | - Maria Ibáñez
- Catalonia Energy Research Institute - IREC, Sant Adria de Besos , Jardins de les Dones de Negre n.1, Pl. 2, 08930 Barcelona, Spain
| | - Oleksandr Dobrozhan
- Catalonia Energy Research Institute - IREC, Sant Adria de Besos , Jardins de les Dones de Negre n.1, Pl. 2, 08930 Barcelona, Spain.,Department of Electronics and Computing, Sumy State University , 2 Rymskogo-Korsakova st., 40007 Sumy, Ukraine
| | - Ajay Singh
- Materials Physics & Applications Division: Center for Integrated Nanotechnologies, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Andreu Cabot
- Catalonia Energy Research Institute - IREC, Sant Adria de Besos , Jardins de les Dones de Negre n.1, Pl. 2, 08930 Barcelona, Spain.,ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Kevin M Ryan
- Department of Chemical Sciences and Bernal Institute, University of Limerick , Limerick, Ireland
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30
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Bian W, Zhang H, Yu Q, Shi M, Shuang S, Cai Z, Choi MMF. Detection of Ag(+) using graphite carbon nitride nanosheets based on fluorescence quenching. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 169:122-127. [PMID: 27348047 DOI: 10.1016/j.saa.2016.06.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 06/13/2016] [Accepted: 06/15/2016] [Indexed: 06/06/2023]
Abstract
The graphite carbon nitride (g-C3N4) nanosheets were synthesized and applied for the detection of Ag(+) ion in aqueous solutions. Transmission electron microscopy, Fourier infrared spectroscopy, x-ray diffraction, ultraviolet/visible and photoluminescence spectroscopy were used for characterization of g-C3N4 nanosheets. The fluorescence intensity of g-C3N4 nanosheets decreases with the increase in the concentration of Ag(+). The fluorescence probe can be applied for detection of Ag(+). The results show that it has high selectivity to Ag(+) and exhibits a good linearity over the concentration range 0.020-2.0μM with a detection limit of 27nM. Most cations do not have any interference on the detection of Ag(+). The quenching process is assessed and discussed. Finally, the g-C3N4 nanosheets have been successfully used for the detection of Ag(+) in real water samples. The recoveries of spiked water samples are >97%.
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Affiliation(s)
- Wei Bian
- School of Basic Medical Science, Shanxi Medical University, Taiyuan 030001, PR China.
| | - Hao Zhang
- School of Basic Medical Science, Shanxi Medical University, Taiyuan 030001, PR China
| | - Qing Yu
- School of Basic Medical Science, Shanxi Medical University, Taiyuan 030001, PR China
| | - Meijuan Shi
- School of Basic Medical Science, Shanxi Medical University, Taiyuan 030001, PR China
| | - Shaomin Shuang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong SAR, PR China
| | - Martin M F Choi
- Acadia Divinity College, Acadia University, 15 University Avenue, Wolfville, Nova Scotia B4P 2R6, Canada
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31
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Yang Z, Lu L, Kiely CJ, Berger BW, McIntosh S. Biomineralized CdS Quantum Dot Nanocrystals: Optimizing Synthesis Conditions and Improving Functional Properties by Surface Modification. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b03487] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhou Yang
- Department of Chemical and Biomolecular Engineering, ‡Department of Materials Science and
Engineering, and §Program in Bioengineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Li Lu
- Department of Chemical and Biomolecular Engineering, ‡Department of Materials Science and
Engineering, and §Program in Bioengineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Christopher J. Kiely
- Department of Chemical and Biomolecular Engineering, ‡Department of Materials Science and
Engineering, and §Program in Bioengineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Bryan W. Berger
- Department of Chemical and Biomolecular Engineering, ‡Department of Materials Science and
Engineering, and §Program in Bioengineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Steven McIntosh
- Department of Chemical and Biomolecular Engineering, ‡Department of Materials Science and
Engineering, and §Program in Bioengineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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32
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Sivasankaran U, Cyriac ST, Menon S, Kumar KG. Fluorescence Turn off Sensor for Brilliant Blue FCF- an Approach Based on Inner Filter Effect. J Fluoresc 2016; 27:69-77. [PMID: 27639570 DOI: 10.1007/s10895-016-1935-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 09/07/2016] [Indexed: 10/21/2022]
Abstract
A nanosensor with fluorometric readout based on L-cysteine capped cadmium sulphide quantum dots for discriminative detection and determination of Brilliant blue FCF (BB) (in 0.5 M Tris buffer solution of pH 9.5) over other synthetic food colourants is developed. Mechanism of the nanosensor is based on inner filter effect (IFE). The addition of BB into quantum dot solution might induce the quenching of fluorescence. The nanosensor described in this report reveals its simplicity and flexibility due to less laborious and more cost-effective synthesis. The developed fluorescence sensor showed excellent selectivity towards BB, and allows the detection as low as 3.50 × 10-7 M. The developed sensor exhibited a linear concentration range of 4.00 × 10-5 to 4.50 × 10-6 M. More importantly, the proposed sensor exhibit sensitive responses toward BB in food samples such as sports drink and candies, demonstrating its potential in food analysis, which might be significant in food quality control in the future.
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Affiliation(s)
- Unni Sivasankaran
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, 22, India
| | - Soumya T Cyriac
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, 22, India
| | - Shalini Menon
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, 22, India
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33
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Li H, Liu J, Yang X. Facile Synthesis of Glutathione-capped CdS Quantum Dots as a Fluorescence Sensor for Rapid Detection and Quantification of Paraquat. ANAL SCI 2016; 31:1011-7. [PMID: 26460365 DOI: 10.2116/analsci.31.1011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This paper describes a convenient and rapid fluorescence sensor for determination of paraquat (PA) based on glutathione-capped CdS quantum dots (QDs). The methodology enabled the use of a simple synthesis procedure for water solubilization of CdS QDs via a fast route using glutathione as a capping agent within 15 min. The resulting water-soluble QDs exhibit a strong fluorescence emission at 536 nm with high and reproducible photostability. PA is an important class of electron acceptors for QDs. Thus, the fluorescence intensity of the glutathione-capped CdS QDs probe could be dramatically quenched by PA due to the electron transfer mechanism. The fluorescence intensity of the CdS QDs system was proportional to PA concentration in the range of 0.025 to 1.5 μg mL(-1), with a detection limit of 0.01 μg mL(-1). The time of analysis sample, including preparation of QDs and fluorescent measurement for PA, was only 20 min. Most of the potentially coexisting substances did not interfere with the PA-induced quenching effect except diquat. Furthermore, the analytical applicability of the proposed method was demonstrated by analyzing PA in water, rice and cabbage samples, and the recoveries were between 86 and 105% which satisfied the requirement of detection for PA. These results showed that the proposed method was simple in design and fast in operation, and could be used as a sensitive tool for detecting PA in environmental and agricultural samples.
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34
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Kang SM, Jang SC, Kim GY, Lee CS, Huh YS, Roh C. A Rapid In Situ Colorimetric Assay for Cobalt Detection by the Naked Eye. SENSORS 2016; 16:s16050626. [PMID: 27144568 PMCID: PMC4883317 DOI: 10.3390/s16050626] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 04/24/2016] [Accepted: 04/26/2016] [Indexed: 02/05/2023]
Abstract
A simple, rapid, and convenient colorimetric chemosensor of a specific target toward the end user is still required for on-site detection and real-time monitoring applications. In this study, we developed a rapid in situ colorimetric assay for cobalt detection using the naked eye. Interestingly, a yellow to light orange visual color transition was observed within 3 s when a Chrysoidine G (CG) chemosensor was exposed to cobalt. Surprisingly, the CG chemosensor had great selectivity toward cobalt without any interference of other metal ions. Under optimized conditions, a lower detection limit of 0.1 ppm via a spectrophotometer and a visual detection limit of 2 ppm with a linear range from 0.4 to 1 ppm (R2 = 0.97) were determined. Moreover, the CG chemosensor is reversible and maintains its functionality after treatment with chelating agents. In conclusion, we show the superior capabilities of the CG chemosensor, which has the potential to provide extremely facile handling, high sensitivity, and a fast response time for applications of on-site detection to real-time cobalt monitoring for the general public.
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Affiliation(s)
- Sung-Min Kang
- Biotechnology Research Division, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), 29 Geumgu-gil, Jeongeup, Jeonbuk 56212, Korea.
- Department of Chemical Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea.
| | - Sung-Chan Jang
- Biotechnology Research Division, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), 29 Geumgu-gil, Jeongeup, Jeonbuk 56212, Korea.
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100 Inha-ro, Incheon 22212, Korea.
| | - Gi Yong Kim
- Biotechnology Research Division, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), 29 Geumgu-gil, Jeongeup, Jeonbuk 56212, Korea.
- Department of Chemical Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea.
| | - Chang-Soo Lee
- Department of Chemical Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea.
| | - Yun Suk Huh
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100 Inha-ro, Incheon 22212, Korea.
| | - Changhyun Roh
- Biotechnology Research Division, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), 29 Geumgu-gil, Jeongeup, Jeonbuk 56212, Korea.
- Radiation Biotechnology and Applied Radioisotope Science, University of Science and Technology (UST), 217 Gajeong-ro, Daejeon 34113, Korea.
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35
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Heo J, Hwang CS. Application of L-Aspartic Acid-Capped ZnS:Mn Colloidal Nanocrystals as a Photosensor for the Detection of Copper (II) Ions in Aqueous Solution. NANOMATERIALS 2016; 6:nano6050082. [PMID: 28335210 PMCID: PMC5302500 DOI: 10.3390/nano6050082] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/14/2016] [Accepted: 04/25/2016] [Indexed: 11/30/2022]
Abstract
Water-dispersible ZnS:Mn nanocrystals (NCs) were synthesized by capping the surface with polar L-aspartic acid (Asp) molecules. The obtained ZnS:Mn-Asp NC product was optically and physically characterized using the corresponding spectroscopic methods. The ultra violet-visible (UV-VIS) absorption spectrum and photoluminescence (PL) emission spectrum of the NCs showed broad peaks at 320 and 590 nm, respectively. The average particle size measured from the obtained high resolution-transmission electron microscopy (HR-TEM) image was 5.25 nm, which was also in accordance with the Debye-Scherrer calculations using the X-ray diffraction (XRD) data. Moreover, the surface charge and degree of aggregation of the ZnS:Mn-Asp NCs were determined by electrophoretic and hydrodynamic light scattering methods, respectively. These results indicated the formation of agglomerates in water with an average size of 19.8 nm, and a negative surface charge (−4.58 mV) in water at ambient temperature. The negatively-charged NCs were applied as a photosensor for the detection of specific cations in aqueous solution. Accordingly, the ZnS:Mn-Asp NCs showed an exclusive luminescence quenching upon addition of copper (II) cations. The kinetic mechanism study on the luminescence quenching of the NCs by the addition of the Cu2+ ions proposed an energy transfer through the ionic binding between the two oppositely-charged ZnS:Mn-Asp NCs and Cu2+ ions.
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Affiliation(s)
- Jungho Heo
- Department of Chemistry, Dankook University, 152 Yongin-si, Suji-ku, Jukjeon-ro, Gyunggi-do 448-701, Korea.
| | - Cheong-Soo Hwang
- Department of Chemistry, Dankook University, 152 Yongin-si, Suji-ku, Jukjeon-ro, Gyunggi-do 448-701, Korea.
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36
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Foo CY, Lim HN, Pandikumar A, Huang NM, Ng YH. Utilization of reduced graphene oxide/cadmium sulfide-modified carbon cloth for visible-light-prompt photoelectrochemical sensor for copper (II) ions. JOURNAL OF HAZARDOUS MATERIALS 2016; 304:400-408. [PMID: 26595899 DOI: 10.1016/j.jhazmat.2015.11.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 10/27/2015] [Accepted: 11/04/2015] [Indexed: 06/05/2023]
Abstract
A newly developed CdS/rGO/CC electrode was prepared based on a flexible carbon cloth (CC) substrate with cadmium sulfide (CdS) nanoparticles and reduced graphene oxide (rGO). The CdS was synthesized using an aerosol-assisted chemical vapor deposition (AACVD) method, and the graphene oxide was thermally reduced on the modified electrode surface. The existence of rGO in the CdS-modified electrode increased the photocurrent intensity of the CdS/rGO/CC-modified electrode by three orders of magnitude, compared to that of the CdS/ITO electrode and two orders of magnitude higher than the CdS/CC electrode. A new visible-light-prompt photoelectrochemical sensor was developed based on the competitive binding reaction of Cu(2+) and CdS on the electrode surface. The results showed that the effect of the Cu(2+) on the photocurrent response was concentration-dependent over the linear ranges of 0.1-1.0 μM and 1.0-40.0 μM with a detection limit of 0.05 μM. The results of a selectivity test showed that this modified electrode has a high response toward Cu(2+) compared to other heavy metal ions. The proposed CdS/rGO/CC electrode provided a significantly high potential current compared to other reported values, and could be a practical tool for the fast, sensitive, and selective determination of Cu(2+).
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Affiliation(s)
- C Y Foo
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - H N Lim
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Functional Device Laboratory, Institute of Advance Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - A Pandikumar
- Low Dimensional Materials Research Centre, Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - N M Huang
- Low Dimensional Materials Research Centre, Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Y H Ng
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales, NSW 2052, Australia
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37
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Mohammadi-Behzad L, Gholivand MB, Shamsipur M, Gholivand K, Barati A, Gholami A. Highly sensitive voltammetric sensor based on immobilization of bisphosphoramidate-derivative and quantum dots onto multi-walled carbon nanotubes modified gold electrode for the electrocatalytic determination of olanzapine. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 60:67-77. [DOI: 10.1016/j.msec.2015.10.068] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 08/14/2015] [Accepted: 10/23/2015] [Indexed: 10/22/2022]
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38
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Cai Y, Du G, Gao G, Chen J, Fu J. Colour-tunable quantum dots/poly(NIPAM-co-AAc) hybrid microgels based on electrostatic interactions. RSC Adv 2016. [DOI: 10.1039/c6ra19659d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Colour-tunable QD/poly(NIPAM-co-AAc) hybrid microgels have been synthesized by encapsulating and entrapping positively charged QDs with pH-responsive negatively charged microgels with tunable photoluminescent properties.
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Affiliation(s)
- Yuting Cai
- Division of Polymer and Composite Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Gaolai Du
- Division of Polymer and Composite Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Guorong Gao
- Division of Polymer and Composite Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Jing Chen
- Division of Polymer and Composite Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Jun Fu
- Division of Polymer and Composite Materials
- Ningbo Institute of Material Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
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39
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Chu CS, Chuang CY. Ratiometric optical fiber sensor for dual sensing of copper ion and dissolved oxygen. APPLIED OPTICS 2015; 54:10659-10665. [PMID: 26837033 DOI: 10.1364/ao.54.010659] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This paper develops a new ratiometric optical dual sensor for Cu2+ ions and dissolved oxygen (DO) incorporating a sol-gel matrix doped with palladium tetrakis pentafluorophenyl porphine as the oxygen-sensitive material, CdSe quantum dots as the Cu2+ ion-sensing material, and 7-amino-4-trifluoromethyl coumarin as the Cu2+ /DO practically independent fluorescent dye. The feasibility of coating an optical fiber with the sensing film to fabricate a ratiometric optical fiber dual sensor is investigated. Using an LED with a central wavelength of 405 nm as an excitation source, it is shown that the emission wavelengths of the Cu2+ ion-sensitive, DO-sensitive dye and the reference dye have no spectral overlap and therefore permit Cu2+ ion and DO concentration to be measured using a ratiometric-based method. The ratiometric optical fiber dual sensor has been tested with regard to monitoring different Cu2+ ion (0-10 μM) and DO concentrations (0-38 mg/L). The results show that the luminescence properties of the Cu2+ ion sensor are independent of the presence of the oxygen sensor and have a uniquely good linear response in the 0-10 μM range. The proposed ratiometric sensing approach presented in this study has the advantage of suppressing spurious fluctuations in the intensity of the excitation source.
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40
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Gholivand MB, Mohammadi-Behzad L. An electrochemical sensor for warfarin determination based on covalent immobilization of quantum dots onto carboxylated multiwalled carbon nanotubes and chitosan composite film modified electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 57:77-87. [DOI: 10.1016/j.msec.2015.07.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 05/23/2015] [Accepted: 07/10/2015] [Indexed: 11/26/2022]
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41
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Cai Y, Wu X, Liu Q, Liu H. Alternative procedure for the incorporation of quantum dots into poly(N-isopropyl acrylamide-co-acrylic acid) microgels based on multiple interactions. J Appl Polym Sci 2015. [DOI: 10.1002/app.43227] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yuting Cai
- School of Science; North University of China; Taiyuan 030051 Shanxi Province People's Republic of China
| | - Xiaoqing Wu
- School of Science; North University of China; Taiyuan 030051 Shanxi Province People's Republic of China
| | - Qinghao Liu
- School of Chemical Engineering and Environment; North University of China; Taiyuan 030051 Shanxi Province People's Republic of China
| | - Hongyan Liu
- Institute of Plant Protection, Henan Academy of Agricultural Sciences; Zhengzhou 450002 Henan Province People's Republic of China
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42
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Mao S, Chang J, Zhou G, Chen J. Nanomaterial-enabled Rapid Detection of Water Contaminants. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:5336-59. [PMID: 26315216 DOI: 10.1002/smll.201500831] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 05/24/2015] [Indexed: 05/18/2023]
Abstract
Water contaminants, e.g., inorganic chemicals and microorganisms, are critical metrics for water quality monitoring and have significant impacts on human health and plants/organisms living in water. The scope and focus of this review is nanomaterial-based optical, electronic, and electrochemical sensors for rapid detection of water contaminants, e.g., heavy metals, anions, and bacteria. These contaminants are commonly found in different water systems. The importance of water quality monitoring and control demands significant advancement in the detection of contaminants in water because current sensing technologies for water contaminants have limitations. The advantages of nanomaterial-based sensing technologies are highlighted and recent progress on nanomaterial-based sensors for rapid water contaminant detection is discussed. An outlook for future research into this rapidly growing field is also provided.
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Affiliation(s)
- Shun Mao
- Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, Wisconsin, 53211, USA
| | - Jingbo Chang
- Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, Wisconsin, 53211, USA
| | - Guihua Zhou
- Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, Wisconsin, 53211, USA
| | - Junhong Chen
- Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, Wisconsin, 53211, USA
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43
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Liu H, He Z, Jiang LP, Zhu JJ. Microwave-assisted synthesis of wavelength-tunable photoluminescent carbon nanodots and their potential applications. ACS APPLIED MATERIALS & INTERFACES 2015; 7:4913-4920. [PMID: 25671342 DOI: 10.1021/am508994w] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A facile and rapid strategy was developed for the synthesis of ultrabright luminescent carbon nanodots (CDs) with tunable wavelength from 464 to 556 nm by introducing glutaraldehyde into the precursor solution under microwave irradiation. The fluorescence properties, including excitation and emission wavelength, quantum yield, and size of the CDs, were adjusted by changing the amount of glutaraldehyde and poly(ethylenimine). Several methods such as high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, and dynamic light scattering, UV-vis, fluorescence, and Fourier transform infrared spectroscopy were employed to study the morphology and the properties of CDs. The luminescence mechanism was also discussed. In addition, confocal microscopy imaging revealed that the as-prepared CDs could be used as effective fluorescent probes in the cell imaging without obvious cytotoxicity. Moreover, a novel sensor for the detection of Co(2+) was proposed on the basis of Co(2+)-induced fluorescence quenching. These superior properties demonstrated the potential application of the CDs in cellular imaging and ion sensing.
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Affiliation(s)
- Hongying Liu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University , Nanjing 210093, People's Republic of China
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44
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Bhosale J, Fegade U, Bondhopadhyay B, Kaur S, Singh N, Basu A, Dabur R, Bendre R, Kuwar A. Pyrrole-coupled salicylimine-based fluorescence “turn on” probe for highly selective recognition of Zn2+ions in mixed aqueous media: Application in living cell imaging. J Mol Recognit 2015; 28:369-75. [DOI: 10.1002/jmr.2451] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 10/08/2014] [Accepted: 11/13/2014] [Indexed: 02/04/2023]
Affiliation(s)
- Jitendra Bhosale
- School of Chemical Sciences; North Maharashtra University; Jalgaon 425001 (MS) India
| | - Umesh Fegade
- School of Chemical Sciences; North Maharashtra University; Jalgaon 425001 (MS) India
| | - Banashree Bondhopadhyay
- Molecular Biology and Human Genetics Laboratory, Department of Zoology; The University of Burdwan; Burdwan 713104 West Bengal India
| | - Simanpreet Kaur
- Centre for Nanoscience and Nanotechnology; Panjab University; Chandigarh Punjab India
| | - Narinder Singh
- Department of Chemistry; Indian Institute of Technology; Ropar Rupnagar Punjab India
| | - Anupam Basu
- Molecular Biology and Human Genetics Laboratory, Department of Zoology; The University of Burdwan; Burdwan 713104 West Bengal India
| | - Rajesh Dabur
- Department of Biochemistry; Maharshi Dayanand University; Rohtak India
| | - Ratnamala Bendre
- School of Chemical Sciences; North Maharashtra University; Jalgaon 425001 (MS) India
| | - Anil Kuwar
- School of Chemical Sciences; North Maharashtra University; Jalgaon 425001 (MS) India
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45
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Paimard G, Gholivand MB, Shamsipur M, Gholivand K, Mohammadi-Behzad L, Gholami A, Barati A. Fabrication of a highly sensitive amperometric sensor using 1,4-phenylene-N,N′-bis (O,O-diphenylphoramidate)/CdS quantum dots/multi-walled carbon nanotubes for nanomolar detection of captopril. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2014.12.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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46
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Cai C, Cheng H, Wang Y, Bao H. Mercaptosuccinic acid modified CdTe quantum dots as a selective fluorescence sensor for Ag+determination in aqueous solutions. RSC Adv 2014. [DOI: 10.1039/c4ra07891h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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47
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Butwong N, Zhou L, Moore E, Srijaranai S, Luong JHT, Glennon JD. A Highly Sensitive Hydrogen Peroxide Biosensor Based on Hemoglobin Immobilized on Cadmium Sulfide Quantum Dots/Chitosan Composite Modified Glassy Carbon Electrode. ELECTROANAL 2014. [DOI: 10.1002/elan.201400353] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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48
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Wang C, Zhou S, Xu S, Wang Z, Cui Y. Discriminative detection of bivalent Cu by dual-emission ZnSe quantum dot fluorescence sensing via ratiometric fluorescence measurements. NANOTECHNOLOGY 2014; 25:375602. [PMID: 25148543 DOI: 10.1088/0957-4484/25/37/375602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this work, we showed that 1-thioglycerol (TG)-capped ZnSe quantum dots (QDs) with dual-emission could perform ideal QD fluorescence sensing for ratiometric fluorescence measurements. By comparing the fluorescence ratios at two emission peaks before and after the addition of cations, the discriminative detection of Cu(II) was realized, even in the case of co-existing with large amounts of other sensitive cations, such as Ag(I). The discriminative detection of Cu(II) is accurate with co-existing Ag(I) below 10 μmol L(-1). By a joint investigation of the ionic diffuse dynamics and carrier recombination dynamics, we found that the adsorbed layer of QDs plays a key role in the discriminative detection of Cu(II) from Ag(I) or other sensitive cations. The moderate adsorption capacity with a QD adsorbed layer makes Cu(II) capable of travelling across the QD double-layer structure, following a surface doping process via chemical reactions between Cu(II) and the QD surface atoms. As a result of Cu(II) doping, there were three major carrier recombination channels: the non-radiation recombination between the QD conduction band to the Cu(II) energy level, together with the non-radiation recombination and radiation recombination between the trap state energy levels and the Cu(II) energy level. As for Ag(I) and other sensitive cations, they have a strong adsorption capacity with the QD adsorbed layer, making them mainly present on the adsorbed layer. Due to the blocking of the ligand layer, we only observed weak coupling of the ZnSe conduction band with the Ag(I) energy level via a non-radiation recombination channel.
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Affiliation(s)
- Chunlei Wang
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University Nanjing, 210096 People's Republic of China
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Quantum dots as optical labels for ultrasensitive detection of polyphenols. Biosens Bioelectron 2014; 57:317-23. [DOI: 10.1016/j.bios.2014.01.038] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 12/20/2013] [Accepted: 01/20/2014] [Indexed: 11/21/2022]
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Yang H, Liu Y, Gao PF, Wang J, Huang CZ. A dark-field light scattering platform for real-time monitoring of the erosion of microparticles by Co2+. Analyst 2014; 139:2783-7. [PMID: 24710388 DOI: 10.1039/c4an00353e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Monitoring chemical reactions using tools of analytical chemistry is crucial for understanding the mechanisms of these reactions. In this study, leaf-like poly(p-phenylenediamine) (PpPD) microparticles were prepared with precisely tailored properties. The dark field microscopy protocol proved to be a powerful tool for studying the erosion of microparticles induced by Co(2+). Such a protocol can have the benefit of improving the understanding of reaction mechanisms and can help expand the applications of dark field microscopy. A possible mechanism was proposed to explain the experimental observations.
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Affiliation(s)
- Hui Yang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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