1
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Liu Z, Xia X, Ye CJ, Xu H, Wang QY, Zheng ZY, Li SS, Liu Z, Guo Z. Sensitive sensing of Hg(II) based on lattice B and surface F co-doped CeO 2: Synergies of catalysis and adsorption brought by doping site engineering. Anal Chim Acta 2023; 1282:341937. [PMID: 37923410 DOI: 10.1016/j.aca.2023.341937] [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: 08/11/2023] [Revised: 09/29/2023] [Accepted: 10/19/2023] [Indexed: 11/07/2023]
Abstract
Transition metal oxides are widely used in the detection of heavy metal ions (HMIs), and the co-doping strategy that introducing a variety of different dopant atoms to modify them can obtain a better detection performance. However, there is very little research on the co-doped transition metal oxides by non-metallic elements for electrochemical detection. Herein, boron (B) and fluorine (F) co-doped CeO2 nanomaterial (BFC) is constructed to serve as the electrochemically sensitive interface for the detection of Hg(II). B and F affect the sensitivity of CeO2 to HMIs when they were introduced at different doping sites. Through a variety of characterization, it is proved that B is successfully doped into the lattice and F is doped on the surface of the material. Through the improvement of the catalytic properties and adsorption capacity of CeO2 by different doping sites, this B and F co-doped CeO2 exhibits excellent square wave anodic stripping voltammetry (SWASV) current responses to Hg(II). Both the high sensitivity of 906.99 μA μM-1 cm-2 and the low limit of detection (LOD) of 0.006 μM are satisfactory. Besides, this BFC glassy carbon electrode (GCE) also has good anti-interference property, which has been successfully used in the detection of Hg(II) in actual water. This discovery provides a useful strategy for designing a variety of non-metallic co-doped transition metal oxides to construct trace heavy metal ion-sensitive interfaces.
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Affiliation(s)
- Zheng Liu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Province Key Laboratory of Intelligent Computing and Applications, Anhui Province Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000, PR China
| | - Xu Xia
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Province Key Laboratory of Intelligent Computing and Applications, Anhui Province Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000, PR China
| | - Chun-Jie Ye
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Province Key Laboratory of Intelligent Computing and Applications, Anhui Province Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000, PR China
| | - Huan Xu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Province Key Laboratory of Intelligent Computing and Applications, Anhui Province Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000, PR China
| | - Qiu-Yu Wang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Province Key Laboratory of Intelligent Computing and Applications, Anhui Province Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000, PR China
| | - Zi-Yi Zheng
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Province Key Laboratory of Intelligent Computing and Applications, Anhui Province Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000, PR China
| | - Shan-Shan Li
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Province Key Laboratory of Intelligent Computing and Applications, Anhui Province Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000, PR China.
| | - Zhonggang Liu
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei, 230000, PR China.
| | - Zheng Guo
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei, 230000, PR China.
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2
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Huseinov A, Hoque A, Ruble KA, Dee BJ, Alvarez NT. Reagentless Dissolution and Quantification of Particulate Lead in Tap Water via Membrane Electrolysis. Anal Chem 2023. [PMID: 37285453 DOI: 10.1021/acs.analchem.3c01201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The presence of particulate Pb in tap water has been a limiting factor in the design of accurate and portable platforms for quantifying this toxic metal. Convenient and affordable electrochemical techniques are blind toward particulate species and thus require addition of reagents and additional chemical processing such as sample acidification. This study describes the fundamentals and the first use of membrane electrolysis for the reagentless sample preparation of tap water for the detection of particulate Pb contaminants. Membrane electrolysis allows for the in-situ generation of nitric acid, which, in combination with anodic stripping voltammetry, provides a powerful tool for the accurate and reagent-free detection of Pb2+. The configuration of the setup allows for its semi-autonomous operation and requires minimal attention, making electrochemical methods more suitable and accessible for continuous measurements of particulate contaminants in tap-water. The voltammetric response is linear in the range of 24.1-398 nM of Pb, which covers the action level of 48 nM suggested by the World Health Organization.
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Affiliation(s)
- Artur Huseinov
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Abdul Hoque
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Kyle A Ruble
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Brandon J Dee
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Noe T Alvarez
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
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3
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Bhattacharjee S, George M, Shim YB, Bernaurdshaw N, Das J. Electropotential-Inspired Star-Shaped Gold Nanoconfined Multiwalled Carbon Nanotubes: A Proof-of-Concept Electrosensoring Interface for Lung Metastasis Biomarkers. ACS APPLIED BIO MATERIALS 2022; 5:5567-5581. [PMID: 36480914 DOI: 10.1021/acsabm.2c00605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, an innovative way of designing a star-shaped gold nanoconfined multiwalled carbon nanotube-engineered sensoring interface (AuNS@MWCNT//GCE) is demonstrated for quantification of methionine (MTH); a proof of concept for lung metastasis. The customization of the AuNS@MWCNT is assisted by surface electrochemistry and thoroughly discussed using state-of-the-art analytical advances. Micrograph analysis proves the protrusion of nanotips on the surface of potentiostatically synthesized AuNPs and validates the hypothesis of Turkevich seed (AuNP)-mediated formation of AuNSs. In addition, a facile synthesis of electropotential-assisted transformation of MWCNTs to luminescent nitrogen-doped graphene quantum dots (Nd-GQDs avg. ∼4.3 nm) is unveiled. The sensor elucidates two dynamic responses as a function of CMTH ranging from 2 to 250 μM and from 250 to 3000 μM with a detection limit (DL) of ∼0.20 μM, and is robust to interferents except for tiny response of a similar -SH group bearing Cys (<9.00%). The high sensitivity (0.44 μA·μM-1·cm-2) and selectivity of the sensor can be attributed to the strong hybridization of the Au nanoparticle with the sp2 C atom of the MWCNTs, which makes them a powerful electron acceptor for Au-SH-MTH interaction as evidenced by density functional theory (DFT) calculations. The validation of the acceptable recovery of MTH in real serum and pharma samples by standard McCarthy-Sullivan assay reveals the holding of great promise to provide valuable information for early diagnosis as well as assessing the therapeutic consequence of lung metastasis.
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Affiliation(s)
- Sangya Bhattacharjee
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Chennai603203, Tamil Nadu, India
| | - Melvin George
- Department of Clinical Pharmacology, SRM Medical College Hospital and Research Center, Kattanlulathur603203, Tamil Nadu, India
| | - Yoon-Bo Shim
- Department of Chemistry and Institute of BioPhysio Sensor Technology (IBST), Pusan National University, Busan46241, Republic of Korea
| | - Neppolian Bernaurdshaw
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai603203, Tamil Nadu, India
| | - Jayabrata Das
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Chennai603203, Tamil Nadu, India
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4
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Yang HK, Yu Y, Zhao ZH, Zhang HY, Zhang YM, Chen J, Wang L, He YC. Synthesis, structure, and electrochemical properties of a novel coordination polymer based on a nitrogen-rich ligand. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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5
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Dahake RV, Bansiwal A. Disposable Sensors for Heavy Metals Detection: A Review of Carbon and Non‐Noble Metal‐Based Receptors. ChemistrySelect 2022. [DOI: 10.1002/slct.202202824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rashmi V. Dahake
- CSIR-National Environmental Engineering Research Institute(NEERI) Nagpur
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh
| | - Amit Bansiwal
- CSIR-National Environmental Engineering Research Institute(NEERI) Nagpur
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6
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Disposable carbon nanotube-based antifouling electrochemical sensors for detection of morphine in unprocessed coffee and milk. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115997] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Rahm CE, Gupta P, Gupta VK, Huseinov A, Griesmer B, Alvarez NT. Impact of physical and chemical parameters on square wave anodic stripping voltammetry for trace Pb 2+ detection in water. Analyst 2022; 147:3542-3557. [DOI: 10.1039/d2an00724j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Exposure to lead, a toxic heavy metal, in drinking water is a worldwide problem.
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Affiliation(s)
- Connor E Rahm
- Department of Chemistry, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Pankaj Gupta
- Department of Chemistry, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Vandna K. Gupta
- Department of Chemistry, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Artur Huseinov
- Department of Chemistry, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Ben Griesmer
- Department of Chemistry, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Noe T. Alvarez
- Department of Chemistry, University of Cincinnati, Cincinnati, OH 45221, USA
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8
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Liu J, Liu X, Zhang L, Zhu L, Mei X, Wei J, Li Y. Hand-Held and Integrated Tubular Tip-like Sensing Platform Series: Point-of-care Device for Semi-automated Multiplexed Assay. Anal Chem 2021; 93:15534-15542. [PMID: 34747608 DOI: 10.1021/acs.analchem.1c03717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Currently, most of the electrochemical sensors were prepared based on the planar electrode (PE) and utilized in open circumstance. The accompanying issues include fixed and limited sensing area of PE, insufficient usage of the testing sample, tedious operation, and susceptibility to external environment. Herein, a novel tubular tip-like sensor (TTLS) platform was proposed, where a small tip accommodates all electrodes with a curved surface and also acts as a closed detection chamber. Teaming up with a commercial pipette and potentiostat, the TTLS is able to accomplish the whole assay procedure including sampling, detection, rinsing, and regeneration with a single hand. The electrochemical interface area can be easily tuned to adapting for different scenarios with varied sensitivity request. Moreover, two TTLS-based array systems were derived: one integrates multiple working electrodes in one tip for multicomponent quantification and the other assembles eight independent TTLSs for high-throughput analysis. The admirable sensing performance of the TTLS was fully proved by detecting several liver-related biomarkers in 5 μL of the serum sample. The proposed tubular sensor platform is superior to the traditional electrochemical sensor in the aspects of unique sensing surface, fast and simple operation, good portability, and great compatibility. The TTLS could be used as an ideal analytical tool in point-of-care testing and other fields.
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Affiliation(s)
- Jiang Liu
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology and School of Science, Harbin Institute of Technology, Shenzhen 518055, Guangdong, P.R. China.,Shenzhen Key Laboratory of Flexible Printed Electronics Technology and School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, Guangdong, P.R. China
| | - Xiaoxue Liu
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology and School of Science, Harbin Institute of Technology, Shenzhen 518055, Guangdong, P.R. China
| | - Lu Zhang
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology and School of Science, Harbin Institute of Technology, Shenzhen 518055, Guangdong, P.R. China
| | - Liang Zhu
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology and School of Science, Harbin Institute of Technology, Shenzhen 518055, Guangdong, P.R. China
| | - Xuecui Mei
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology and School of Science, Harbin Institute of Technology, Shenzhen 518055, Guangdong, P.R. China
| | - Jun Wei
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology and School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, Guangdong, P.R. China
| | - Yingchun Li
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology and School of Science, Harbin Institute of Technology, Shenzhen 518055, Guangdong, P.R. China
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9
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Huseinov A, Weese BL, Brewer BJ, Alvarez NT. Near-electrode pH change for voltammetric detection of insoluble lead carbonate. Anal Chim Acta 2021; 1186:339087. [PMID: 34756248 DOI: 10.1016/j.aca.2021.339087] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/14/2021] [Accepted: 09/18/2021] [Indexed: 11/19/2022]
Abstract
Lead contamination of drinking water is a concern to all inhabitants of old cities where lead pipes and soldering are still present. Simple on-site electrochemical detection methods are promising technologies that have gained attention recently. However, conventional electrochemical techniques only quantify soluble forms of lead in water without accounting for insoluble particulates. Herein, a simple voltammetric technique for quantification of insoluble lead species is reported. Lead carbonate (PbCO3) was used as a model compound to show the possibility of detecting particulate lead species directly in solution without chemical treatment. Specifically, electrochemical generation of protons was used as an alternative method to dissolve PbCO3 and thus obtain a more realistic assessment of lead contamination. Lead was detected using cathodic stripping square wave voltammetry (CSSWV). After applying a high oxidizing potential to the electrode immersed in a PbCO3 solution with solid PbCO3 particulates, a significant increase in current was observed as compared to that of a saturated PbCO3 solution. The signal was proportional to the amount of added PbCO3, even when the solubility limit was exceeded. Thus, the combination of a local pH change with CSSWV provides a simple, rapid, and reagentless method for an in-situ detection of insoluble lead species.
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Affiliation(s)
- Artur Huseinov
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, United States
| | - Benjamin L Weese
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, United States
| | - Brody J Brewer
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, United States
| | - Noe T Alvarez
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, United States.
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10
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Ding Q, Li C, Wang H, Xu C, Kuang H. Electrochemical detection of heavy metal ions in water. Chem Commun (Camb) 2021; 57:7215-7231. [PMID: 34223844 DOI: 10.1039/d1cc00983d] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Heavy metal ions are one of the main sources of water pollution. Most heavy metal ions are carcinogens that pose a threat to both ecological balance and human health. With the increasing demand for heavy metal detection, electrochemical detection is favorable due to its high sensitivity and efficiency. Here, after discussing the pollution sources and toxicities of Hg(ii), Cd(ii), As(iii), Pb(ii), UO2(ii), Tl(i), Cr(vi), Ag(i), and Cu(ii), we review a variety of recent electrochemical methods for detecting heavy metal ions. Compared with traditional methods, electrochemical methods are portable, fast, and cost-effective, and they can be adapted to various on-site inspection sites. Our review shows that the electrochemical detection of heavy metal ions is a very promising strategy that has attracted widespread attention and can be applied in agriculture, life science, clinical diagnosis, and analysis.
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Affiliation(s)
- Qi Ding
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China.
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11
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Xu J, Wang X, Yao M. Optimization of copper detection based on polarization-resolved laser-induced breakdown spectroscopy. APPLIED OPTICS 2021; 60:5266-5270. [PMID: 34143097 DOI: 10.1364/ao.424283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/14/2021] [Indexed: 06/12/2023]
Abstract
In order to obtain stable spectral data of copper plasma, a detection platform of polarization-resolved laser-induced breakdown spectroscopy (PRLIBS) was built. The PRLIBS characteristic function of copper was constructed by combining the spectral path of plasma discrete spectrum and contact spectrum. The system can not only measure the original data, but also obtain the polarization information in the spectral data. By analyzing the extraction method of spatial polarized light information, the characteristic model of S-wave intensity information in PRLIBS was derived. The results show that in the decay process of plasma energy, the anisotropy of plasma recombination under local thermal equilibrium makes the number of deflected particles of atoms and electrons different in unit time, which leads to the polarization of radiation. The polarization characteristics of the plasma spectrum decreased with the increase of laser energy density. The S-wave was very active, and the polarization of continuous media was much stronger than that of discrete line emission. The advantages were helpful to obtain more stable characteristic peak signals. As a plasma element identification method, PRLIBS makes up for the deficiency of plasma detection technology, and can provide a scientific basis for the safety and non-destructive detection of heavy metals.
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12
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Gupta P, Rahm CE, Griesmer B, Alvarez NT. Carbon Nanotube Microelectrode Set: Detection of Biomolecules to Heavy Metals. Anal Chem 2021; 93:7439-7448. [PMID: 33988989 DOI: 10.1021/acs.analchem.1c00360] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An ultrasensitive electrochemical microelectrode set (μ-ES), where all three electrodes are made of highly densified carbon nanotube fiber (HD-CNTf) cross sections (length ∼40 μm), embedded in an inert polymer matrix, and exposed open-ended CNTs at the interface, is presented here. Bare open ends of HD-CNTf rods were used as the working (∼40 μm diameter) and counter (∼94 μm diameter) electrodes, while the cross section of a ∼94 μm diameter was electroplated with Ag/AgCl and coated with Nafion to employ as a quasi-reference electrode. The Ag/AgCl/Nafion-coated HD-CNTf rod quasi-reference electrode provided a very stable potential comparable to the commercial porous-junction Ag/AgCl reference electrode. The HD-CNTf rod μ-ES has been evaluated by electrochemical determination of biologically important analytes, i.e., dopamine (DA), β-nicotinamide adenine dinucleotide (NADH), a diuretic drug, i.e., furosemide, and a heavy metal, i.e., lead ions (Pb2+). Different voltammetric techniques were employed during the study, i.e., cyclic voltammetry (CV), square wave voltammetry (SWV), amperometry, and square wave anodic stripping voltammetry (SWASV). The direct metallic connection to CNTs gives access to the exceptional properties of highly ordered open-ended CNTs as electrochemical sensors. The distinct structural and electronic properties of aligned HD-CNTf rods in the μ-ES demonstrate fast electron transfer kinetics and offer excellent detection performance during testing for different analytes with wide linear ranges, excellent sensitivity, and very low limits of detection.
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Affiliation(s)
- Pankaj Gupta
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Connor E Rahm
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Benjamin Griesmer
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Noe T Alvarez
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
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13
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Xu QQ, Xia X, Zhu M, Xu LH, Zhang YX, Li SS. Cobalt encapsulated in bamboo-like N-doped carbon nanotubes for highly sensitive electroanalysis of Pb(II): enhancement based on adsorption and catalysis. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:2147-2156. [PMID: 33881025 DOI: 10.1039/d0ay02330b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Carbon nanotubes (CNTs) are recognized as desirable candidates to fabricate electrochemical sensing interfaces owing to their high surface area and excellent electron conductivity. However, the poor catalytic properties of CNTs significantly hinder their further application in electrochemical detection. Herein, for the first time we combined defective CNTs with catalytically active cobalt nanoparticles (Co NPs) to give cobalt encapsulated in a bamboo-like N-doped carbon nanotube nanocomposite (Co/N-CNTs). The novel constructed Co/N-CNTs are used as a modifier on a bare glass carbon electrode for the electrochemical detection of Pb(ii). As a result, the positive effect of adsorption and catalysis on Co/N-CNT shows a significant improvement in the electroanalytical performance towards Pb(ii) with a sensitivity of 69.74 μA μM-1 and a limit of detection of 0.039 μM. Moreover, the stability and practical applications of Co/N-CNTs towards Pb(ii) in real water samples obtained from a mining subsidence area were also considered. This method shows great promise, achieving an outstanding electroanalysis efficiency with noble-metal-free nanocomposite sensors based on the combination of carbon and transition metals.
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Affiliation(s)
- Qian-Qian Xu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Department of Materials Science and Engineering, Huaibei Normal University, Huaibei 235000, P. R. China.
| | - Xu Xia
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Department of Materials Science and Engineering, Huaibei Normal University, Huaibei 235000, P. R. China.
| | - Min Zhu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Department of Materials Science and Engineering, Huaibei Normal University, Huaibei 235000, P. R. China.
| | - Li-Hao Xu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Department of Materials Science and Engineering, Huaibei Normal University, Huaibei 235000, P. R. China.
| | - Yong-Xing Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Department of Materials Science and Engineering, Huaibei Normal University, Huaibei 235000, P. R. China.
| | - Shan-Shan Li
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Department of Materials Science and Engineering, Huaibei Normal University, Huaibei 235000, P. R. China.
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14
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Gupta P, Rahm CE, Jiang D, Gupta VK, Heineman WR, Justin G, Alvarez NT. Parts per trillion detection of heavy metals in as-is tap water using carbon nanotube microelectrodes. Anal Chim Acta 2021; 1155:338353. [PMID: 33766313 DOI: 10.1016/j.aca.2021.338353] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/17/2021] [Accepted: 02/21/2021] [Indexed: 10/22/2022]
Abstract
Heavy metal contamination of drinking water is a major global issue. Research reports across the globe show contamination of heavy metals higher than the set standards of the World Health Organization (WHO) and US Environmental Protection Agency (EPA). To our knowledge, no electrochemical sensor for heavy metals with parts per trillion (PPT) limits of detection (LOD) in as-is tap water has been reported or developed. Here, we report a microelectrode that consists of six highly densified carbon nanotube fiber (HD-CNTf) cross sections called rods (diameter ∼69 μm and length ∼40 μm) in a single platform for the ultra-sensitive detection of heavy metals in tap water and simulated drinking water. The HD-CNTf rods microelectrode was evaluated for the individual and simultaneous determination of trace level of heavy metal ions i.e. Cu2+, Pb2+ and Cd2+ in Cincinnati tap water (without supporting electrolyte) and simulated drinking water using square wave stripping voltammetry (SWSV). The microsensor exhibited a broad linear detection range with an excellent limit of detection for individual Cu2+, Pb2+ and Cd2+ of 6.0 nM, (376 ppt), 0.45 nM (92 ppt) and 0.24 nM (27 ppt) in tap water and 0.32 nM (20 ppt), 0.26 nM (55 ppt) and 0.25 nM (28 ppt) in simulated drinking water, respectively. The microelectrode was shown to detect Pb2+ ions well below the WHO and EPA limits in a broad range of water quality conditions reported for temperature and conductivity in the range of 5 °C-45 °C and 55 to 600 μS/cm, respectively.
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Affiliation(s)
- Pankaj Gupta
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, United States
| | - Connor E Rahm
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, United States
| | - Dehua Jiang
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, United States
| | - Vandna K Gupta
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, United States
| | - William R Heineman
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, United States
| | | | - Noe T Alvarez
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, United States.
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15
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Khanmohammadi A, Jalili Ghazizadeh A, Hashemi P, Afkhami A, Arduini F, Bagheri H. An overview to electrochemical biosensors and sensors for the detection of environmental contaminants. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01940-z] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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16
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Li YK, Yang T, Chen ML, Wang JH. Recent Advances in Nanomaterials for Analysis of Trace Heavy Metals. Crit Rev Anal Chem 2020; 51:353-372. [PMID: 32182101 DOI: 10.1080/10408347.2020.1736505] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In an effort to achieve high sensitivity analysis methods for ultra-trace levels of heavy metals, numerous new nanomaterials are explored for the application in preconcentration processes and sensing systems. Nanomaterial-based methods have proven to be effective for selective analysis and speciation of heavy metals in combination with spectrometric techniques. This review outlined the different types of nanomaterials applied in the field of heavy metal analysis, and concentrated on the latest developments in various new materials. In particular, the functionalization of traditional materials and the exploitation of bio-functional materials could increase the specificity to target metals. The hybridization of multiple materials could improve material properties, to build novel sensor system or achieve detection-removal integration. Finally, we discussed the future perspectives of nanomaterials in the heavy metal preconcentration and sensor design, as well as their respective advantages and challenges. Despite impressive progress and widespread attention, the development of new nanomaterials and nanotechnology is still hampered by numerous challenges, particularly in the specificity to the target and the anti-interference performance in complex matrices.
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Affiliation(s)
- Yi-Kun Li
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China
| | - Ting Yang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China
| | - Ming-Li Chen
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China.,Analytical and Testing Center, Northeastern University, Shenyang, China
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China
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17
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Gazica K, FitzGerald E, Dangel G, Haynes EN, Yadav J, Alvarez NT. Towards on-site detection of cadmium in human urine. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113808] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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18
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Zhang Y, Xu J, Zhou S, Zhu L, Lv X, Zhang J, Zhang L, Zhu P, Yu J. DNAzyme-Triggered Visual and Ratiometric Electrochemiluminescence Dual-Readout Assay for Pb(II) Based on an Assembled Paper Device. Anal Chem 2020; 92:3874-3881. [DOI: 10.1021/acs.analchem.9b05343] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yan Zhang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P.R. China
| | - Jinmeng Xu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P.R. China
| | - Shuang Zhou
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, P.R. China
| | - Lin Zhu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P.R. China
| | - Xue Lv
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P.R. China
| | - Jing Zhang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P.R. China
| | - Lina Zhang
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, P. R. China
| | - Peihua Zhu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P.R. China
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P.R. China
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19
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Smartphone‐coupled Electrochemical Analysis of Cellular Superoxide Anions Based on Mn
x
(PO
4
)
y
Monolayer Modified Porous Carbon. ELECTROANAL 2019. [DOI: 10.1002/elan.201900623] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Sun H, Wang C, Xu Y, Dai D, Deng X, Gao H. A Novel Electrochemical Sensor Based on A Glassy Carbon Electrode Modified with GO/MnO
2
for Simultaneous Determination of Trace Cu(II) and Pb(II) in Environmental Water. ChemistrySelect 2019. [DOI: 10.1002/slct.201902858] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Hongyan Sun
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life ScienceMOECollege of Chemistry and Molecular EngineeringQingdao University of Science & Technology Qingdao 266042 P. R. China
| | - Chengxiang Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life ScienceMOECollege of Chemistry and Molecular EngineeringQingdao University of Science & Technology Qingdao 266042 P. R. China
| | - Yongji Xu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life ScienceMOECollege of Chemistry and Molecular EngineeringQingdao University of Science & Technology Qingdao 266042 P. R. China
| | - Dongmei Dai
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life ScienceMOECollege of Chemistry and Molecular EngineeringQingdao University of Science & Technology Qingdao 266042 P. R. China
| | - Xiaoyan Deng
- College of Environment and Safety EngineeringQingdao University of Science & Technology Qingdao 266042 P. R. China
| | - Hongtao Gao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life ScienceMOECollege of Chemistry and Molecular EngineeringQingdao University of Science & Technology Qingdao 266042 P. R. China
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21
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Huang A, Li H, Xu D. An on-chip electrochemical sensor by integrating ITO three-electrode with low-volume cell for on-line determination of trace Hg(II). J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113189] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Shi H, Zhu F, Zhou X, Li H, Yang F, Zhang X, Liu J. Large scale fabrication of disposable carbon cloth electrochemical sensors for simultaneous determination of heavy metal ion. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.04.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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23
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Li SS, Zhou WY, Jiang M, Li LN, Sun YF, Guo Z, Liu JH, Huang XJ. Insights into diverse performance for the electroanalysis of Pb(II) on Fe2O3 nanorods and hollow nanocubes: Toward analysis of adsorption sites. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.08.069] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Cai W, Xie S, Zhang J, Tang D, Tang Y. Immobilized-free miniaturized electrochemical sensing system for Pb2+ detection based on dual Pb2+-DNAzyme assistant feedback amplification strategy. Biosens Bioelectron 2018; 117:312-318. [DOI: 10.1016/j.bios.2018.06.020] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/31/2018] [Accepted: 06/07/2018] [Indexed: 01/25/2023]
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25
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Electrochemical synthesis of nitrogen-doped carbon quantum dots decorated copper oxide for the sensitive and selective detection of non-steroidal anti-inflammatory drug in berries. J Colloid Interface Sci 2018; 523:191-200. [DOI: 10.1016/j.jcis.2018.03.095] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 03/20/2018] [Accepted: 03/27/2018] [Indexed: 01/17/2023]
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26
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Dai X, Wu S, Li S. Progress on electrochemical sensors for the determination of heavy metal ions from contaminated water. ACTA ACUST UNITED AC 2018. [DOI: 10.1080/22243682.2018.1425904] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Xiangzi Dai
- Institute of Polymer Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang, P. R. China
| | - Shuping Wu
- Institute of Polymer Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang, P. R. China
| | - Songjun Li
- Institute of Polymer Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang, P. R. China
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