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Wang QY, Li HR, Xu H, Tao JM, Li SS. High efficiency Hg(II) electrochemical detection based on the number of defect engineering on MoS 2: Insight in synergistic action of sulfur vacancies and undercoordinated Mo. Anal Chim Acta 2024; 1318:342952. [PMID: 39067907 DOI: 10.1016/j.aca.2024.342952] [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: 06/03/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/30/2024]
Abstract
Defects on nanomaterials can effectively enhance the performance of electrochemical detection, but an excessive number of defects may have an adverse effect. In this study, MoS2 nanosheets were synthesized using a hydrothermal synthesis method. By controlling the calcination temperature, MoS2-7H, calcined at 700 °C under H2/Ar2, exhibited an optimal ratio of "point" defects to "plane" defects, resulting in excellent detection performance for mercury ions (Hg(II)). In general, the sulfur vacancies (SV) and undercoordinated Mo generated after calcination of MoS2 significantly promotes the adsorption process and redox of Hg(II) by increasing surface chemical activity, providing additional adsorption sites and adjusting surface charge status to accelerate the catalytic redox of Hg(II). The prepared MoS2-7H-modified electrode showed a sensitivity of 18.25 μA μM-1 and a low limit of detection (LOD) of 6.60 nM towards Hg(II). MoS2-7H also demonstrated a good anti-interference, stability, and exhibited a strong current response in real water samples. The modulation to obtain appropriate number of defects in MoS2 holds promise as a prospective electrode modification material for the electroanalysis.
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Affiliation(s)
- Qiu-Yu Wang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Province Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000, PR China
| | - Hao-Ran Li
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, 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 Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000, PR China
| | - Jia-Mei Tao
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, 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 Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000, PR China.
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2
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Sulthana SF, Iqbal UM, Suseela SB, Anbazhagan R, Chinthaginjala R, Chitathuru D, Ahmad I, Kim TH. Electrochemical Sensors for Heavy Metal Ion Detection in Aqueous Medium: A Systematic Review. ACS OMEGA 2024; 9:25493-25512. [PMID: 38911761 PMCID: PMC11190924 DOI: 10.1021/acsomega.4c00933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 05/13/2024] [Accepted: 05/24/2024] [Indexed: 06/25/2024]
Abstract
Heavy metal ions (HMIs) are very harmful to the ecosystem when they are present in excess of the recommended limits. They are carcinogenic in nature and can cause serious health issues. So, it is important to detect the metal ions quickly and accurately. The metal ions arsenic (As3+), cadmium (Cd2+), chromium (Cr3+), lead (Pb2+), and mercury (Hg2+) are considered to be very toxic among other metal ions. Standard analytical methods like atomic absorption spectroscopy, atomic fluorescence spectroscopy, and X-ray fluorescence spectroscopy are used to detect HMIs. But these methods necessitate highly technical equipment and lengthy procedures with skilled personnel. So, electrochemical sensing methods are considered to be more advantageous because of their quick analysis with precision and simplicity to operate. They can detect a wide range of heavy metals providing real-time monitoring and are cost-effective and enable multiparametric detection. Various sensing applications necessitate severe regulation regarding the modification of electrode surfaces. Numerous nanomaterials such as graphene, carbon nanotubes, and metal nanoparticles have been extensively explored as interface materials in electrode modifiers. These nanoparticles offer excellent electrical conductivity, distinctive catalytic properties, and high surface area resulting in enhanced electrochemical performance. This review examines different HMI detection methods in an aqueous medium by an electrochemical sensing approach and studies the recent developments in interface materials for altering the electrodes.
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Affiliation(s)
- S. Fouziya Sulthana
- Department
of Mechatronics Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | - U. Mohammed Iqbal
- Department
of Mechanical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | - Sreeja Balakrishnapillai Suseela
- Department
of Electronics and Communication Engineering, Centre for Medical Electronics,
College of Engineering, Anna University, Chennai, Tamil Nadu 600025, India
| | - Rajesh Anbazhagan
- School
of Electrical and Electronics Engineering, SASTRA University, Thanjavur 613401, India
| | - Ravikumar Chinthaginjala
- School
of Electronics Engineering, Vellore Institute
of Technology, Vellore 632014, Tamil Nadu, India
| | - Dhanamjayulu Chitathuru
- School of
Electrical Engineering, Vellore Institute
of Technology, Vellore 632014, Tamil Nadu, India
| | - Irfan Ahmad
- Department
of Clinical Laboratory Sciences, College of Applied Medical Science, King Khalid University, Abha 61421, Saudi Arabia
| | - Tai-hoon Kim
- School
of Electrical and Computer Engineering Yeosu Campus, Chonnam National University, 50 Daehak-ro, Yeosu-si, Jeollanam-do 59626, Republic of Korea
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3
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Dubourg G, Pavlović Z, Bajac B, Kukkar M, Finčur N, Novaković Z, Radović M. Advancement of metal oxide nanomaterials on agri-food fronts. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 928:172048. [PMID: 38580125 DOI: 10.1016/j.scitotenv.2024.172048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/03/2024] [Accepted: 03/26/2024] [Indexed: 04/07/2024]
Abstract
The application of metal oxide nanomaterials (MOx NMs) in the agrifood industry offers innovative solutions that can facilitate a paradigm shift in a sector that is currently facing challenges in meeting the growing requirements for food production, while safeguarding the environment from the impacts of current agriculture practices. This review comprehensively illustrates recent advancements and applications of MOx for sustainable practices in the food and agricultural industries and environmental preservation. Relevant published data point out that MOx NMs can be tailored for specific properties, enabling advanced design concepts with improved features for various applications in the agrifood industry. Applications include nano-agrochemical formulation, control of food quality through nanosensors, and smart food packaging. Furthermore, recent research suggests MOx's vital role in addressing environmental challenges by removing toxic elements from contaminated soil and water. This mitigates the environmental effects of widespread agrichemical use and creates a more favorable environment for plant growth. The review also discusses potential barriers, particularly regarding MOx toxicity and risk evaluation. Fundamental concerns about possible adverse effects on human health and the environment must be addressed to establish an appropriate regulatory framework for nano metal oxide-based food and agricultural products.
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Affiliation(s)
- Georges Dubourg
- University of Novi Sad, Center for Sensor Technologies, Biosense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia.
| | - Zoran Pavlović
- University of Novi Sad, Center for Sensor Technologies, Biosense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
| | - Branimir Bajac
- University of Novi Sad, Center for Sensor Technologies, Biosense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
| | - Manil Kukkar
- University of Novi Sad, Center for Sensor Technologies, Biosense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
| | - Nina Finčur
- University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Zorica Novaković
- University of Novi Sad, Center for Sensor Technologies, Biosense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
| | - Marko Radović
- University of Novi Sad, Center for Sensor Technologies, Biosense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
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4
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Park EJ, Ha TH. Pb 2+ Ion Sensors Employing Gold Etching Process: Comparative Investigation on Au Nanorods and Au Nanotriangles. SENSORS (BASEL, SWITZERLAND) 2024; 24:497. [PMID: 38257590 PMCID: PMC10820728 DOI: 10.3390/s24020497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024]
Abstract
The leaching phenomenon of gold (Au) nanomaterials by Pb2+ ions in the presence of 2-mercaptoethanol (2-ME) and thiosulfate (S2O32- ion) has been systematically applied to a Pb2+ ion sensor. To further investigate the role of Pb2+ ions in sensors containing Au nanomaterials, we revisited the leaching conditions for Au nanorods and compared them with the results for Au nanotriangles. By monitoring the etching rate, it was revealed that Pb2+ ions were important for the acceleration of the etching rate mainly driven by 2-ME and S2O32- pairs, and nanomolar detection of Pb2+ ions were shown to be promoted through this catalytic effect. Using the etchant, the overall size of the Au nanorods decreased but showed an unusual red-shift in UV-Vis spectrum indicating increase of aspect ratio. Indeed, the length of Au nanorods decreased by 9.4% with the width decreasing by 17.4% over a 30-min reaction time. On the other hand, the Au nanotriangles with both flat sides surrounded mostly by dense Au{111} planes showed ordinary blue-shift in UV-Vis spectrum as the length of one side was reduced by 21.3%. By observing the changes in the two types of Au nanomaterials, we inferred that there was facet-dependent alloy formation with lead, and this difference resulted in Au nanotriangles showing good sensitivity, but lower detection limits compared to the Au nanorods.
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Affiliation(s)
- Eun Jin Park
- Core Research Facility and Analysis Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea;
- Department of Nanobiotechnology, KRIBB School of Biotechnology, Korea National University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Tai Hwan Ha
- Core Research Facility and Analysis Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea;
- Department of Nanobiotechnology, KRIBB School of Biotechnology, Korea National University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
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5
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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: 2] [Impact Index Per Article: 2.0] [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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6
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Sharifi A, Hallaj R, Bahar S. Preconcentration of Pb(II) by Magnetic Metal-Organic Frameworks and Analysis Using Graphite Furnace Atomic Absorption Spectroscopy. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2023; 2023:5424221. [PMID: 36703710 PMCID: PMC9873434 DOI: 10.1155/2023/5424221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 12/16/2022] [Accepted: 12/26/2022] [Indexed: 06/18/2023]
Abstract
In this study, a magnetic metal-organic framework (MOF) was synthesized based on magnetic Fe3O4, Cu(II), and benzene-1,3,5-tricarboxylic acid (Cu-BTC) as a sorbent for solid phase extraction (SPE) of trace amounts of Pb(II) in water and lettuce samples. Pb(II) ion was adsorbed on the magnetic MOF and easily separated by a magnet; therefore, no filtration or centrifugation was necessary. The analyte ions were eluted by HCl 0.5 mol·L-1 and analyzed via graphite furnace atomic absorption spectroscopy. The prepared sorbent was characterized by scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and Fourier transform-infrared (FT-IR) spectroscopy. Under optimal experimental conditions, the method had a linear range of 0.1-50 μg·L-1. The limits of detection and quantitation for lead were found to be 0.026 and 0.08 μg·L-1, respectively. The results showed that the prepared sorbent has high selectivity for Pb2+ even in the presence of other interfering metal ions.
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Affiliation(s)
- Arman Sharifi
- Department of Chemistry, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - Rahman Hallaj
- Department of Chemistry, University of Kurdistan, Sanandaj 66177-15175, Iran
- Research Center for Nanotechnology, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - Soleiman Bahar
- Department of Chemistry, University of Kurdistan, Sanandaj 66177-15175, Iran
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7
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Ultrasensitive detection of Hg(II) by small-sized Mn3O4 loaded on g-C3N4 nanosheets: Heterojunction facilitates electron transfer and Mn(II)/Mn(III)/Mn(IV) cycle. Anal Chim Acta 2022; 1230:340404. [DOI: 10.1016/j.aca.2022.340404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/28/2022] [Accepted: 09/12/2022] [Indexed: 11/23/2022]
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8
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Xiao XY, Zhao YH, Li YY, Song ZY, Chen SH, Huang HQ, Yang M, Li PH, Huang XJ. General Strategies to Construct Highly Efficient Sensing Interfaces for Metal Ions Detection from the Perspective of Catalysis. Anal Chem 2022; 94:13631-13641. [PMID: 36150119 DOI: 10.1021/acs.analchem.2c01797] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Constructing high-effective electrode sensing interfaces has been considered an effective method for electrochemical detection toward heavy metal ions (HMIs). However, most research has been devoted to enhancing the stripping currents of HMIs by simply improving the adsorptive capacity and conductivity of the electrode modified materials, while lacking theoretical guidelines in fabricating catalytic sensing interfaces. Besides, the understanding of detection mechanisms is quite unscientific from the perspective of catalysis. This perspective summarizes five general strategies in designing highly efficient sensing interfaces in the recent five years, including modulating crystal phases, orientations and planes, defect engineering, ionic valence state cycle engineering, adsorption in situ catalysis strategy, and construction of atomic level catalytic active sites. What's more, the catalytic mechanisms for improving the signals of HMIs, such as boosting the electron transfer rates and conversion rates, lowering the energy barriers, etc., are introduced and emphasized. This study has a great significance in directionally controlling functionalized electrochemical sensors to achieve excellent sensitivity and selectivity in detecting environmental pollutants from the view of catalysis, and it also brings enlightenments and guidance to develop new electroanalytical methods.
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Affiliation(s)
- Xiang-Yu Xiao
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yong-Huan Zhao
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yong-Yu Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, P. R. China
| | - Zong-Yin Song
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Shi-Hua Chen
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Hong-Qi Huang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Meng Yang
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Pei-Hua Li
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Xing-Jiu Huang
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China
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9
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Song ZY, Xiao XY, Chen SH, Li YY, Yang YF, Huang CC, Duan W, Yang M, Li PH, Huang XJ. Sensing Material-Dependent Interference of Multiple Heavy Metal Ions: Experimental and Simulated Thermodynamics Study on Cu(II), Cd(II), and As(III) Electroanalysis. Anal Chem 2022; 94:6225-6233. [PMID: 35404584 DOI: 10.1021/acs.analchem.1c05617] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Interference among multiple heavy metal ions (HMIs) is a significant problem that must be solved in electroanalysis, which extremely restricts the practical popularization of electrochemical sensors. However, due to the limited exploration of the intrinsic mechanism, it is still difficult to confirm the influencing factors. In this work, a series of experimental and theoretical electroanalysis models have been established to investigate the electroanalysis results of Cu(II), Cd(II), As(III), and their mixtures, which were based on the simple structure and stable coordination of nickel single-atom catalysts. X-ray absorption spectroscopy and density functional theory calculations were used to reveal the underlying detection mechanism of the 50-fold boosting effect of Cu(II) on As(III) while Cd(II) inhibits As(III). Combining the application of the thermodynamic model and Fourier transform infrared reflection, the specific interaction of the nanomaterials and HMIs on the interface is considered to be the fundamental source of the interference. This work opens up a new way of thinking about utilizing the unique modes of interplay between nanomaterials and HMIs to achieve anti-interference intelligent electrodes in stripping analysis.
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Affiliation(s)
- Zong-Yin Song
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Xiang-Yu Xiao
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Shi-Hua Chen
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Yong-Yu Li
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China.,School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Yuan-Fan Yang
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Cong-Cong Huang
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Wanchun Duan
- Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Meng Yang
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Pei-Hua Li
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Xing-Jiu Huang
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
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10
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Hwang JH, Fox D, Stanberry J, Anagnostopoulos V, Zhai L, Lee WH. Direct Mercury Detection in Landfill Leachate Using a Novel AuNP-Biopolymer Carbon Screen-Printed Electrode Sensor. MICROMACHINES 2021; 12:649. [PMID: 34205934 PMCID: PMC8229311 DOI: 10.3390/mi12060649] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 05/26/2021] [Accepted: 05/30/2021] [Indexed: 01/06/2023]
Abstract
A novel Au nanoparticle (AuNP)-biopolymer coated carbon screen-printed electrode (SPE) sensor was developed through the co-electrodeposition of Au and chitosan for mercury (Hg) ion detection. This new sensor showed successful Hg2+ detection in landfill leachate using square wave anodic stripping voltammetry (SWASV) with an optimized condition: a deposition potential of -0.6 V, deposition time of 200 s, amplitude of 25 mV, frequency of 60 Hz, and square wave step voltage of 4 mV. A noticeable peak was observed at +0.58 V associated with the stripping current of the Hg ion. The sensor exhibited a good sensitivity of ~0.09 μA/μg (~0.02 μA/nM) and a linear response over the concentration range of 10 to 100 ppb (50-500 nM). The limit of detection (LOD) was 1.69 ppb, which is significantly lower than the safety limit defined by the United States Environmental Protection Agency (USEPA). The sensor had an excellent selective response to Hg2+ in landfill leachate against other interfering cations (e.g., Zn2+, Pb2+, Cd2+, and Cu2+). Fifteen successive measurements with a stable peak current and a lower relative standard deviation (RSD = 5.1%) were recorded continuously using the AuNP-biopolymer-coated carbon SPE sensor, which showed excellent stability, sensitivity and reproducibility and consistent performance in detecting the Hg2+ ion. It also exhibited a good reliability and performance in measuring heavy metals in landfill leachate.
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Affiliation(s)
- Jae-Hoon Hwang
- Department of Civil, Environmental, and Construction Engineering, University of Central Florida, Orlando, FL 32816, USA
| | - David Fox
- NanoScience Technology Center and Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA; (D.F.); (L.Z.)
| | - Jordan Stanberry
- Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA; (J.S.); (V.A.)
| | | | - Lei Zhai
- NanoScience Technology Center and Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA; (D.F.); (L.Z.)
| | - Woo Hyoung Lee
- Department of Civil, Environmental, and Construction Engineering, University of Central Florida, Orlando, FL 32816, USA
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Banerjee A, Maity S, Mastrangelo CH. Nanostructures for Biosensing, with a Brief Overview on Cancer Detection, IoT, and the Role of Machine Learning in Smart Biosensors. SENSORS (BASEL, SWITZERLAND) 2021; 21:1253. [PMID: 33578726 PMCID: PMC7916491 DOI: 10.3390/s21041253] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/04/2021] [Accepted: 02/07/2021] [Indexed: 01/03/2023]
Abstract
Biosensors are essential tools which have been traditionally used to monitor environmental pollution and detect the presence of toxic elements and biohazardous bacteria or virus in organic matter and biomolecules for clinical diagnostics. In the last couple of decades, the scientific community has witnessed their widespread application in the fields of military, health care, industrial process control, environmental monitoring, food-quality control, and microbiology. Biosensor technology has greatly evolved from in vitro studies based on the biosensing ability of organic beings to the highly sophisticated world of nanofabrication-enabled miniaturized biosensors. The incorporation of nanotechnology in the vast field of biosensing has led to the development of novel sensors and sensing mechanisms, as well as an increase in the sensitivity and performance of the existing biosensors. Additionally, the nanoscale dimension further assists the development of sensors for rapid and simple detection in vivo as well as the ability to probe single biomolecules and obtain critical information for their detection and analysis. However, the major drawbacks of this include, but are not limited to, potential toxicities associated with the unavoidable release of nanoparticles into the environment, miniaturization-induced unreliability, lack of automation, and difficulty of integrating the nanostructured-based biosensors, as well as unreliable transduction signals from these devices. Although the field of biosensors is vast, we intend to explore various nanotechnology-enabled biosensors as part of this review article and provide a brief description of their fundamental working principles and potential applications. The article aims to provide the reader a holistic overview of different nanostructures which have been used for biosensing purposes along with some specific applications in the field of cancer detection and the Internet of things (IoT), as well as a brief overview of machine-learning-based biosensing.
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Affiliation(s)
- Aishwaryadev Banerjee
- Department of Electrical & Computer Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Swagata Maity
- Department of Condensed Matter Physics and Materials Sciences, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India;
| | - Carlos H. Mastrangelo
- Department of Electrical & Computer Engineering, University of Utah, Salt Lake City, UT 84112, USA
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12
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Metal and metal oxide nanoparticles in the voltammetric detection of heavy metals: A review. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116014] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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13
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Xu H, Bai Z, Zhang M, Wang J, Yan Y, Qiu M, Chen J. Water-locking molecule-assisted fabrication of nature-inspired Mg(OH) 2 for highly efficient and economical uranium capture. Dalton Trans 2020; 49:7535-7545. [PMID: 32458903 DOI: 10.1039/d0dt00618a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
With the depletion of uranium terrestrial deposits, researchers have focused on the development of adsorbents to extract radioactive uranium from seawater/wastewater. However, the artificial manipulation of adsorbents for the cost-effective extraction of radioactive uranium from large numbers of water samples is still significantly challenging. Herein, a facile yet versatile stepwise strategy has been reported for the fabrication of adsorbents. Magnesium hydroxide (Mg(OH)2) was fabricated via the in situ conversion of a natural ore powder (magnesite), whose unique internal pore structure is highly suitable for the development of highly efficient sorbents. The coordination interaction of the synthesized adsorbent with uranium was enhanced by further introducing inexpensive molecules with water-locking properties, which resulted in superior extraction capacity and low production cost. After careful calculation, the cost per kilogram of the adsorbent was found to be about $0.21. The adsorption behaviors of the synthesized adsorbent CMC-PAM/Mg(OH)2 were investigated by batch adsorption, flow-through column adsorption (in laboratory), and field adsorption experiments in natural seawater and river. Representatively, CMC-PAM/Mg(OH)2 was exceptional in extracting uranium not only at high concentrations with sufficient capacities in a wide pH range (1584.67 mg g-1 and 454.55 mg g-1 at pH = 5 and pH = 8, respectively), but also in trace quantities including uranium in a flow-through column (55.68 mg g-1), natural seawater (8.6 mg g-1), and river (6.7 mg g-1). Inspired by this excellent performance, the effects of competitive ions on the selective adsorption of uranium by CMC-PAM/Mg(OH)2 in simulated wastewater and seawater environments were further studied. Using a combination of FTIR spectroscopic and XPS studies, it was revealed that the amine and hydroxyl groups enhanced the overall uranyl affinity of the CMC-PAM/Mg(OH)2 composite.
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Affiliation(s)
- Hengbin Xu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Zhenyuan Bai
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Milin Zhang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China. and College of Science, Heihe University, Heihe 164300, China
| | - Jun Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Yongde Yan
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Min Qiu
- College of Science, Heihe University, Heihe 164300, China
| | - Jiaming Chen
- College of Science, Heihe University, Heihe 164300, China
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Huang H, Chen L, Wang S, Kang P, Chen X, Guo Z, Huang XJ. Electrochemical monitoring of persistent toxic substances using metal oxide and its composite nanomaterials: Design, preparation, and application. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.115636] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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15
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Priya T, Dhanalakshmi N, Thennarasu S, Karthikeyan V, Thinakaran N. Ultra sensitive electrochemical detection of Cd2+ and Pb2+ using penetrable nature of graphene/gold nanoparticles/modified L-cysteine nanocomposite. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.136621] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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16
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Preconcentration of Pb with Aminosilanized Fe3O4 Nanopowders in Environmental Water Followed by Electrothermal Atomic Absorption Spectrometric Determination. CHEMENGINEERING 2019. [DOI: 10.3390/chemengineering3030074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A new preconcentration method to determine lead in environmental waters using the aminosilanized magnetite Fe3O4 powder sorbent has been developed. The preconcentration method was combined with electrothermal atomization atomic absorption spectrometry (ETAAS) and a graphite atomizer. Trace amount of sorbent (3 mg) could be applied into the preconcentration of Pb. According the preconcentration, the detection limits were 14 and 19 pg·mL−1 with bare and aminosilanized Fe3O4, respectively. The effect of interferent elements such as Al, Ca, Co, Fe, K, Mg, Na, Ni, and Zn (1000 ng·mL−1 versus Pb 1 ng·mL−1) on the preconcentration of Pb using bare magnetite was evaluated, and some elements (Al, Ni, and Zn) were found to interfere with the Pb preconcentration. The aminosilanized Fe3O4 sorbent was found to be effective in eliminating the severe interferences. The enrichment factors were 34 for the preconcentration with aminosilanized Fe3O4. The recovery of spiked Pb in the case of the sorbent with aminosilanized Fe3O4 was in the range of 75 to 110%. From the analytical data, the preconcentration technique was found to be useful for the determination of trace lead in environmental waters.
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Pang LY, Wang P, Gao JJ, Wen Y, Liu H. An active metal-organic anion framework with highly exposed SO42− on {001} facets for the enhanced electrochemical detection of trace Fe3+. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.01.067] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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18
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Kanellis VG. Sensitivity limits of biosensors used for the detection of metals in drinking water. Biophys Rev 2018; 10:1415-1426. [PMID: 30225681 PMCID: PMC6233349 DOI: 10.1007/s12551-018-0457-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 09/10/2018] [Indexed: 12/13/2022] Open
Abstract
Even when present in very low concentrations, certain metal ions can have significant health impacts depending on their concentration when present in drinking water. In an effort to detect and identify trace amounts of such metals, environmental monitoring has created a demand for new and improved methods that have ever-increasing sensitivities and selectivity. This paper reviews the sensitivities of over 100 recently published biosensors using various analytical techniques such as fluorescence, voltammetry, inductively coupled plasma techniques, spectrophotometry and visual colorimetric detection that display selectivity for copper, cadmium, lead, mercury and/or aluminium in aqueous solutions.
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Zhong Z, Ali A, Jamal R, Simayi R, Xiang L, Ding S, Abdiryim T. Poly(EDOT-pyridine-EDOT) and poly(EDOT-pyridazine-EDOT) hollow nanosphere materials for the electrochemical detection of Pb2+and Cu2+. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.05.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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20
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Electroanalytical detection of heavy metals using metallophthalocyanine and silica-coated iron oxide composites. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0545-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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21
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Ding S, Ali A, Jamal R, Xiang L, Zhong Z, Abdiryim T. An Electrochemical Sensor of Poly(EDOT-pyridine-EDOT)/Graphitic Carbon Nitride Composite for Simultaneous Detection of Cd 2+ and Pb 2. MATERIALS 2018; 11:ma11050702. [PMID: 29710815 PMCID: PMC5978079 DOI: 10.3390/ma11050702] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/17/2018] [Accepted: 04/20/2018] [Indexed: 01/25/2023]
Abstract
In this study, poly(2,5-bis(3,4-ethylenedioxythienyl)pyridine)/graphitic carbon nitride composites (poly(BPE)/g-C₃N₄) were prepared by an in situ chemical polymerization method. Composites were characterized by using Fourier transform infrared spectroscopy (FT-IR), ultraviolet⁻visible absorption spectra (UV⁻vis), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Furthermore, electrochemical sensors were applied for the electrochemical determination of Cd2+ and Pb2+ using the differential pulse voltammetry (DPV) method. The results indicated that 10 wt % poly(BPE)/g-C₃N₄ composite-modified electrode exhibited linear detection ranging from 0.12 to 7.2 μM and 0.08 to 7.2 μM for Cd2+ and Pb2+, with detection limits (S/N = 3) of 0.018 μM and 0.00324 μM. Interference analysis suggested that the 10 wt % poly(BPE)/g-C₃N₄-modified electrode can be applied for the detection of the Cd2+ and Pb2+ in real samples.
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Affiliation(s)
- Shuai Ding
- Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China.
- Key Laboratory of Functional Polymers, Xinjiang University, Urumqi 830046, China.
| | - Ahmat Ali
- Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China.
- Key Laboratory of Functional Polymers, Xinjiang University, Urumqi 830046, China.
| | - Ruxangul Jamal
- Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China.
- Key Laboratory of Functional Polymers, Xinjiang University, Urumqi 830046, China.
| | - Ling Xiang
- Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China.
- Key Laboratory of Functional Polymers, Xinjiang University, Urumqi 830046, China.
| | - Ziping Zhong
- Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China.
- Key Laboratory of Functional Polymers, Xinjiang University, Urumqi 830046, China.
| | - Tursun Abdiryim
- Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China.
- Key Laboratory of Functional Polymers, Xinjiang University, Urumqi 830046, China.
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22
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Ding Y, Hao X, Yin H, Kyratzis IL, Shen S, Sun K, Liu F, Musameh MM. Ultrasensitive and Selective Detection of Cd(II) Using ZnSe-Xanthan Gum Complex/CNT Modified Electrodes. ELECTROANAL 2018. [DOI: 10.1002/elan.201700763] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yongling Ding
- Advanced Materials Institute; Qilu University of Technology (Shandong Academy of Science); Jinan 250014 PR China
- School of Materials Science and Engineering; University of Jinan; Jinan 250022 PR China
- CSIRO Manufacturing; Clayton, VIC 3168 Australia
| | - Xiaojuan Hao
- CSIRO Manufacturing; Clayton, VIC 3168 Australia
| | - Hong Yin
- CSIRO Manufacturing; Clayton, VIC 3168 Australia
| | | | - Shirley Shen
- CSIRO Manufacturing; Clayton, VIC 3168 Australia
| | - Kangning Sun
- School of Materials Science and Engineering; University of Jinan; Jinan 250022 PR China
| | - Futian Liu
- Advanced Materials Institute; Qilu University of Technology (Shandong Academy of Science); Jinan 250014 PR China
- School of Materials Science and Engineering; University of Jinan; Jinan 250022 PR China
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23
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A review of the identification and detection of heavy metal ions in the environment by voltammetry. Talanta 2018; 178:324-338. [DOI: 10.1016/j.talanta.2017.08.033] [Citation(s) in RCA: 268] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 07/31/2017] [Accepted: 08/09/2017] [Indexed: 12/24/2022]
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24
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Wang Y, Chen Y, Liu C, Yu F. High-efficiency enrichment of uranium(VI) from aqueous solution by hydromagnesite and its calcination products. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-017-5661-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Voltammetric determination of metal ions beyond mercury electrodes. A review. Anal Chim Acta 2017; 990:11-53. [DOI: 10.1016/j.aca.2017.07.069] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 07/24/2017] [Accepted: 07/29/2017] [Indexed: 02/01/2023]
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26
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Li SS, Jiang M, Jiang TJ, Liu JH, Guo Z, Huang XJ. Competitive adsorption behavior toward metal ions on nano-Fe/Mg/Ni ternary layered double hydroxide proved by XPS: Evidence of selective and sensitive detection of Pb(II). JOURNAL OF HAZARDOUS MATERIALS 2017; 338:1-10. [PMID: 28531655 DOI: 10.1016/j.jhazmat.2017.05.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 05/07/2017] [Accepted: 05/10/2017] [Indexed: 05/26/2023]
Abstract
Hypersensitive and highly selective nanomaterials for the measurement of heavy metal ions (HMIs) hold a key to electro-analysis. Various works improved the results of analysis but without scientific understanding. Herein, Fe/Mg/Ni-layered double hydroxide (LDH) has been successfully prepared and its electrochemical behavior for Pb(II) detection is also studied using square wave anodic stripping voltammetry (SWASV). The well performance of electrochemistry suggest that the modification with Fe/Mg/Ni-LDH significantly promotes the selectivity and sensitivity toward Pb(II). The sensitivity on Fe/Mg/Ni-LDH modified glassy carbon electrode (GCE) is 68.1μAμM-1 over the range from 0.03 to 1.0μM under the optimized conditions. Otherwise, the selectivity, anti-interference, stability measurements and practical implications of Fe/Mg/Ni-LDH modified GCE are also performed. What,s more, a reasonable mechanism of detection for Pb(II) including selectivity and sensitivity is proposed based on adsorption and characterized using XPS and XRD. These findings provide a potentially excellent material to improve the sensitivity and selectivity for toxic metal ions as well as a deep understanding of detection.
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Affiliation(s)
- Shan-Shan Li
- Key Laboratory of Environmental Optics and Technology, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Min Jiang
- Key Laboratory of Environmental Optics and Technology, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Tian-Jia Jiang
- Key Laboratory of Environmental Optics and Technology, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Jin-Huai Liu
- Key Laboratory of Environmental Optics and Technology, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; University of Science and Technology of China, Hefei 230026, People's Republic of China.
| | - Zheng Guo
- Key Laboratory of Environmental Optics and Technology, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; University of Science and Technology of China, Hefei 230026, People's Republic of China.
| | - Xing-Jiu Huang
- Key Laboratory of Environmental Optics and Technology, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; University of Science and Technology of China, Hefei 230026, People's Republic of China.
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27
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Kempahanumakkagari S, Deep A, Kim KH, Kumar Kailasa S, Yoon HO. Nanomaterial-based electrochemical sensors for arsenic - A review. Biosens Bioelectron 2017; 95:106-116. [DOI: 10.1016/j.bios.2017.04.013] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/11/2017] [Accepted: 04/12/2017] [Indexed: 01/04/2023]
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28
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Alkaline intercalation of Ti3C2 MXene for simultaneous electrochemical detection of Cd(II), Pb(II), Cu(II) and Hg(II). Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.07.084] [Citation(s) in RCA: 175] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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29
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A review on various electrochemical techniques for heavy metal ions detection with different sensing platforms. Biosens Bioelectron 2017; 94:443-455. [DOI: 10.1016/j.bios.2017.03.031] [Citation(s) in RCA: 534] [Impact Index Per Article: 76.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 03/05/2017] [Accepted: 03/14/2017] [Indexed: 11/16/2022]
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30
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Gęca I, Korolczuk M. Anodic stripping voltammetry following double deposition and stripping steps: Application of a new approach in the course of lead ion determination. Talanta 2017; 171:321-326. [DOI: 10.1016/j.talanta.2017.05.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 04/29/2017] [Accepted: 05/04/2017] [Indexed: 12/19/2022]
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31
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Multi-element determination of metals and metalloids in waters and wastewaters, at trace concentration level, using electroanalytical stripping methods with environmentally friendly mercury free-electrodes: A review. Talanta 2017; 175:53-68. [PMID: 28842029 DOI: 10.1016/j.talanta.2017.06.077] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 06/27/2017] [Accepted: 06/30/2017] [Indexed: 01/28/2023]
Abstract
Nowadays, water is no longer regarded as an inexhaustible resource and the excessive release and proliferation of toxic metal(loid)s into aquatic environments has become a critical issue. Therefore, fast, accurate, simple, selective, sensitive and portable methodologies to detect multiple elements in natural waters is of paramount importance. Electrochemical stripping analysis is an efficient tool for trace metal(loid)s determinations and bring new prospects for answering the current environmental concerns. This review presents a survey of the advancements made between 2003 and 2016 on the development and application of non-toxic mercury free electrodes on the simultaneous analysis of metals and metalloids in waters and wastewaters by means of electroanalytical stripping techniques. The advantages, limitations, improvements and real applications of these "green" sensors are discussed from a critical point of view.
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32
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Wu YL, Bai F, Yang T, Chen JH, Su L, Hou XM. Selective Determination of Copper (II) Based on Aluminum Silicon Carbide Nanoparticles Modified Glassy Carbon Electrode by Square Wave Stripping Voltammetry. ELECTROANAL 2017. [DOI: 10.1002/elan.201700122] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Y. L. Wu
- State Key Laboratory of Advanced Metallurgy; University of Science and Technology Beijing; Beijing 100083 China
| | - F. Bai
- State Key Laboratory of Advanced Metallurgy; University of Science and Technology Beijing; Beijing 100083 China
| | - T. Yang
- State Key Laboratory of Advanced Metallurgy; University of Science and Technology Beijing; Beijing 100083 China
| | - J. H. Chen
- School of Materials Science and Engineering; University of Science and Technology Beijing; Beijing 100083 China
| | - L. Su
- Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering; University of Science and Technology Beijing; Beijing 100083 China
| | - X. M. Hou
- State Key Laboratory of Advanced Metallurgy; University of Science and Technology Beijing; Beijing 100083 China
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33
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Efficient Use of Porous Hybrid Materials in a Selective Detection of Lead(II) from Aqueous Solutions: An Electrochemical Study. METALS 2017. [DOI: 10.3390/met7040124] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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34
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Velmurugan M, Chen SM. Synthesis and Characterization of Porous MnCo 2O 4 for Electrochemical Determination of Cadmium ions in Water Samples. Sci Rep 2017; 7:653. [PMID: 28381862 PMCID: PMC5429597 DOI: 10.1038/s41598-017-00748-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 03/09/2017] [Indexed: 12/01/2022] Open
Abstract
To utilize the maximum activity of nanomaterials, it was specifically synthesized by appropriate physicochemical properties. In that aspect, we have described the synthesis of porous MnCo2O4 by simple chemical route and applied for the selective detection of cadmium (Cd (II)). The as-prepared porous MnCo2O4 was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) adsorption isotherm, X-ray diffraction pattern analysis (XRD), Fourier transform infra-red spectroscopy (FT-IR), energy dispersive X-ray (EDX) and electrochemical techniques. The porous MnCo2O4 exhibited an excellent electrochemical behaviour and good analytical response towards the determination of Cd (II). Those analytical factors such as pH, deposition potential and deposition time are optimized by using differential pulse anodic stripping voltammetry (DPASV). A wide linear concentration range from 2.3 to 120 µg L-1, limit of detection (LOD) of 0.72 µg L-1 and the limit of quantification (LOQ) of 0.91 µg L-1 were achieved for determination of Cd (II). The selectivity of the developed sensor was explored in the presence of co-interfering ions. Also our sensor exhibits a good stability, reproducibility and repeatability. In addition, the practicability of proposed sensor was evaluated for the detection of Cd (II) in real water samples.
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Affiliation(s)
- Murugan Velmurugan
- National Taipei University of Technology, Taipei, 106, Taiwan, Republic of China
| | - Shen-Ming Chen
- National Taipei University of Technology, Taipei, 106, Taiwan, Republic of China.
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35
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Deshmukh S, Kandasamy G, Upadhyay RK, Bhattacharya G, Banerjee D, Maity D, Deshusses MA, Roy SS. Terephthalic acid capped iron oxide nanoparticles for sensitive electrochemical detection of heavy metal ions in water. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.01.064] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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36
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Yu L, Zhang P, Dai H, Chen L, Ma H, Lin M, Shen D. An electrochemical sensor based on Co3O4 nanosheets for lead ions determination. RSC Adv 2017. [DOI: 10.1039/c7ra06269a] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, Co3O4 nanosheets were fabricated on indium tin oxide (ITO) substrates by developing a simple electrochemical deposition and annealing method for lead ions detection.
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Affiliation(s)
- Lei Yu
- College of Chemistry, Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- The Key Lab in Molecular and Nano-materials Probes of the Ministry of Education of China
- Shandong Normal University
- Jinan 250014
| | - Ping Zhang
- College of Chemistry, Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- The Key Lab in Molecular and Nano-materials Probes of the Ministry of Education of China
- Shandong Normal University
- Jinan 250014
| | - Hongxiu Dai
- Key Laboratory for Colloid and Interface Chemistry of State Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- China
| | - Ling Chen
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Houyi Ma
- Key Laboratory for Colloid and Interface Chemistry of State Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- China
| | - Meng Lin
- Key Laboratory for Colloid and Interface Chemistry of State Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- China
| | - Dazhong Shen
- College of Chemistry, Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- The Key Lab in Molecular and Nano-materials Probes of the Ministry of Education of China
- Shandong Normal University
- Jinan 250014
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37
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Albayrak İ, Erkal A, Yavuz S, Kariper İA, Ender Mülazımoğlu İ, Üstündağ Z. Isophtalic acid terminated graphene oxide modified glassy carbon nanosensor electrode: Cd2+and Bi3+analysis in tap water and milk samples. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2016. [DOI: 10.1080/10942912.2016.1213743] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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38
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Lee S, Oh J, Kim D, Piao Y. A sensitive electrochemical sensor using an iron oxide/graphene composite for the simultaneous detection of heavy metal ions. Talanta 2016; 160:528-536. [PMID: 27591647 DOI: 10.1016/j.talanta.2016.07.034] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 07/12/2016] [Accepted: 07/13/2016] [Indexed: 11/19/2022]
Abstract
We report an analytical assessment of an iron oxide (Fe2O3)/graphene (G) nanocomposite electrode used in combination with in situ plated bismuth (Bi) working as an electrochemical sensor for the determination of trace Zn(2+), Cd(2+), and Pb(2+). The as-synthesized nanocomposites were characterized by transmission electron microscopy, scanning electron microscopy, thermo-gravimetric analyzer, and X-ray diffraction. The electrochemical properties of the Fe2O3/G/Bi composite modified electrode were investigated. Differential pulse anodic stripping voltammetry was applied for the detection of metal ions. Due to the synergetic effect between graphene and the Fe2O3 nanoparticles, the modified electrode showed improved electrochemical catalytic activity high sensitivity toward trace heavy metal ions. Several parameters such as the preconcentration potential, bismuth concentration, preconcentration time, and pH were carefully optimized to determine the target metal ions. Under optimized conditions, the linear range of the electrode was 1-100μgL(-1) for Zn(2+), Cd(2+), and Pb(2+), and the detection limits were 0.11μgL(-1), 0.08μgL(-1), and 0.07μgL(-1), respectively (S/N =3). Repeatability (% RSD) was found to be 1.68% for Zn(2+), 0.92% for Cd(2+), and 1.69% for Pb(2+) for single sensor with 10 measurements and 0.89% for Zn(2+), 1.15% for Cd(2+), and 0.91% for Pb(2+) for 5 different electrodes. The Fe2O3/G/Bi composite electrode was successfully applied to the analysis of trace metal ions in real samples. The solventless thermal decomposition method applied to the simple and easy synthesis of nanocomposite electrode materials can be extended to the synthesis of nanocomposites and promising electrode materials for the determination of heavy metal ions.
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Affiliation(s)
- Sohee Lee
- Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 151-742 Republic of Korea
| | - Jiseop Oh
- Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 151-742 Republic of Korea
| | - Dongwon Kim
- Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 151-742 Republic of Korea
| | - Yuanzhe Piao
- Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 151-742 Republic of Korea; Advanced Institutes of Convergence Technology, Seoul National University, Suwon, 443-270 Republic of Korea.
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39
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Voltammetric determination of trace heavy metals using an electrochemically deposited graphene/bismuth nanocomposite film-modified glassy carbon electrode. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.02.003] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Li SS, Han DD, Jiang TJ, Guo Z, Huang XJ, Liu JH. An atomically thick titanium phosphate thin layer with enhancing electrochemical sensitivity toward Pb(ii). RSC Adv 2016. [DOI: 10.1039/c6ra08679a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An atomically thick titanium phosphate thin layer is synthesized and used for sensitive electrochemical detection for Pb(ii) with a high sensitivity and low limit of detection.
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Affiliation(s)
- Shan-Shan Li
- Nanomaterials and Environmental Detection Laboratory
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031
- People's Republic of China
| | - Dong-Dong Han
- Nanomaterials and Environmental Detection Laboratory
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031
- People's Republic of China
| | - Tian-Jia Jiang
- Nanomaterials and Environmental Detection Laboratory
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031
- People's Republic of China
| | - Zheng Guo
- Nanomaterials and Environmental Detection Laboratory
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031
- People's Republic of China
| | - Xing-Jiu Huang
- Nanomaterials and Environmental Detection Laboratory
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031
- People's Republic of China
| | - Jin-Huai Liu
- Nanomaterials and Environmental Detection Laboratory
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031
- People's Republic of China
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41
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Wei J, Li SS, Guo Z, Chen X, Liu JH, Huang XJ. Adsorbent Assisted in Situ Electrocatalysis: An Ultra-Sensitive Detection of As(III) in Water at Fe3O4 Nanosphere Densely Decorated with Au Nanoparticles. Anal Chem 2015; 88:1154-61. [DOI: 10.1021/acs.analchem.5b02947] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Juan Wei
- Nanomaterials
and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Shan-Shan Li
- Nanomaterials
and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Zheng Guo
- Nanomaterials
and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
| | - Xing Chen
- Nanomaterials
and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
| | - Jin-Huai Liu
- Nanomaterials
and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
| | - Xing-Jiu Huang
- Nanomaterials
and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
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42
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Li SS, Li WJ, Jiang TJ, Liu ZG, Chen X, Cong HP, Liu JH, Huang YY, Li LN, Huang XJ. Iron Oxide with Different Crystal Phases (α- and γ-Fe2O3) in Electroanalysis and Ultrasensitive and Selective Detection of Lead(II): An Advancing Approach Using XPS and EXAFS. Anal Chem 2015; 88:906-14. [DOI: 10.1021/acs.analchem.5b03570] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shan-Shan Li
- Nanomaterials
and Environmental Detection Laboratory, Institutes of Intelligent
Machines, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Wen-Juan Li
- Nanomaterials
and Environmental Detection Laboratory, Institutes of Intelligent
Machines, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Tian-Jia Jiang
- Nanomaterials
and Environmental Detection Laboratory, Institutes of Intelligent
Machines, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Zhong-Gang Liu
- Nanomaterials
and Environmental Detection Laboratory, Institutes of Intelligent
Machines, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Xing Chen
- Nanomaterials
and Environmental Detection Laboratory, Institutes of Intelligent
Machines, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
| | - Huai-Ping Cong
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Jin-Huai Liu
- Nanomaterials
and Environmental Detection Laboratory, Institutes of Intelligent
Machines, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
| | - Yu-Ying Huang
- Shanghai
Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, People’s Republic of China
| | - Li-Na Li
- Shanghai
Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, People’s Republic of China
| | - Xing-Jiu Huang
- Nanomaterials
and Environmental Detection Laboratory, Institutes of Intelligent
Machines, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
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43
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Fu S, Zhang X, Ren G, Chai F, Wang C. Facile Synthesis of Galactosamine-Stabilized Gold Nanoparticles with Sensitive Cd2+Sensing. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500943] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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44
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Li M, Wu J, Cui L, Ju H. Selective and sensitive electrochemical determination of Pb 2+ based on highly adsorptive WO x –ethylenediamine nanowires. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.09.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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45
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Han XJ, Zhou SF, Fan HL, Zhang QX, Liu YQ. Mesoporous MnFe2O4 nanocrystal clusters for electrochemistry detection of lead by stripping voltammetry. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.07.054] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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46
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Guan Q, Xiong W, Zhou L, Liu S. Facile Synthesis of Nitrogen-Doped Porous Carbon-Gold Hybrid Nanocomposite for Mercury(II) Ion Electrochemical Determination. ELECTROANAL 2015. [DOI: 10.1002/elan.201500481] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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47
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Electrochemical detection of As(III) through mesoporous MnFe2O4 nanocrystal clusters by square wave stripping voltammetry. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.06.036] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Carbonaceous Materials-12: a Novel Highly Sensitive Graphene Oxide-Based Carbon Electrode: Preparation, Characterization, and Heavy Metal Analysis in Food Samples. FOOD ANAL METHOD 2015. [DOI: 10.1007/s12161-015-0198-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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49
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Interesting interference evidences of electrochemical detection of Zn(II), Cd(II) and Pb(II) on three different morphologies of MnO2 nanocrystals. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2014.12.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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50
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Wyantuti S, Hartati YW, Panatarani C, Tjokronegoro R. Cyclic Voltammetric Study of Chromium (VI) and Chromium (III) on the Gold Nanoparticles-Modified Glassy Carbon Electrode. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.proche.2015.12.109] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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