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Ahmed J, Faisal M, Algethami JS, Alsaiari M, Jalalah M, Harraz FA. CeO 2·ZnO@biomass-derived carbon nanocomposite-based electrochemical sensor for efficient detection of ascorbic acid. Anal Biochem 2024; 692:115574. [PMID: 38782251 DOI: 10.1016/j.ab.2024.115574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/26/2024] [Accepted: 05/21/2024] [Indexed: 05/25/2024]
Abstract
Ascorbic acid (AA), a prominent antioxidant commonly found in human blood serum, serves as a biomarker for assessing oxidative stress levels. Therefore, precise detection of AA is crucial for swiftly diagnosing conditions arising from abnormal AA levels. Consequently, the primary aim of this research is to develop a sensitive and selective electrochemical sensor for accurate AA determination. To accomplish this aim, we used a novel nanocomposite comprised of CeO2-doped ZnO adorned on biomass-derived carbon (CeO2·ZnO@BC) as the active nanomaterial, effectively fabricating a glassy carbon electrode (GCE). Various analytical techniques were employed to scrutinize the structure and morphology features of the CeO2·ZnO@BC nanocomposite, ensuring its suitability as the sensing nanomaterial. This innovative sensor is capable of quantifying a wide range of AA concentrations, spanning from 0.5 to 1925 μM in a neutral phosphate buffer solution. It exhibits a remarkable sensitivity of 0.2267 μA μM-1cm-2 and a practical detection limit of 0.022 μM. Thanks to its exceptional sensitivity and selectivity, this sensor enables highly accurate determination of AA concentrations in real samples. Moreover, its superior reproducibility, repeatability, and stability underscore its reliability and robustness for AA quantification.
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Affiliation(s)
- Jahir Ahmed
- Advanced Materials and Nano-Research Centre (AMNRC), Najran University, Najran, 11001, Saudi Arabia; Department of Chemistry, Faculty of Science and Arts, Najran University, Najran, 11001, Saudi Arabia
| | - M Faisal
- Advanced Materials and Nano-Research Centre (AMNRC), Najran University, Najran, 11001, Saudi Arabia; Department of Chemistry, Faculty of Science and Arts, Najran University, Najran, 11001, Saudi Arabia
| | - Jari S Algethami
- Advanced Materials and Nano-Research Centre (AMNRC), Najran University, Najran, 11001, Saudi Arabia; Department of Chemistry, Faculty of Science and Arts, Najran University, Najran, 11001, Saudi Arabia
| | - Mabkhoot Alsaiari
- Advanced Materials and Nano-Research Centre (AMNRC), Najran University, Najran, 11001, Saudi Arabia; Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Sharurah, 68342, Saudi Arabia
| | - Mohammed Jalalah
- Advanced Materials and Nano-Research Centre (AMNRC), Najran University, Najran, 11001, Saudi Arabia; Department of Electrical Engineering, College of Engineering, Najran University, Najran, 11001, Saudi Arabia
| | - Farid A Harraz
- Advanced Materials and Nano-Research Centre (AMNRC), Najran University, Najran, 11001, Saudi Arabia; Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Sharurah, 68342, Saudi Arabia.
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Lawaniya SD, Pandey G, Yu Y, Awasthi K. Efficient detection of p-nitrophenol via a polypyrrole flower-decorated nickel foam-based electrochemical sensor. NANOSCALE 2024; 16:13915-13924. [PMID: 38973523 DOI: 10.1039/d4nr01580k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
p-Nitrophenol (p-NP) is known as a common contaminant found in wastewater, agricultural runoff, and industrial effluents which can degrade water quality and cause potential carcinogenic and toxic effects on the human body. Its detection is essential for public health, industrial safety, environmental protection, and regulatory compliance, underscoring its broad applicability. In this study, a novel electrochemical sensor based on polypyrrole (PPy) flowers assembled via nanotubes was developed for the sensitive determination of p-NP. The nickel (Ni) foam modified with PPy flowers functioned as the working electrode and showed selectivity toward p-NP in a phosphate buffer medium at pH 7.0. Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques were utilized for the sensitive determination of p-NP. Under the optimum conditions, the peak currents of DPV versus the concentrations of p-NP in the range of 0.01-20 nM showed a good linear relationship (R2 = 0.9943), and the limit of detection (LOD) was calculated to be 7.18 pM (signal-to-noise ratio of 3, S/N = 3). The fabricated electrochemical p-NP sensor exhibited high sensitivity, a low detection limit, and a low response time. The recoveries of p-NP in real samples of groundwater and tap water using the PPy Fls/Ni foam electrode were in the range of 91.0-108.4% with a relative standard deviation (RSD) in the range of 6.65%. Consequently, the PPy Fls/Ni foam electrode could be applied as a rapid, precise, and sensitive electrochemical sensor platform for aqueous p-NP quantification and determination.
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Affiliation(s)
- Shiv Dutta Lawaniya
- Department of Physics, Malaviya National Institute of Technology Jaipur, Jaipur-302017, Rajasthan, India.
| | - Gaurav Pandey
- Department of Physics, Malaviya National Institute of Technology Jaipur, Jaipur-302017, Rajasthan, India.
| | - Yeontae Yu
- Division of Advanced Materials Engineering, Jeonbuk National University, 567, Baekje daero, Deokjin-gu, Jeonju, 54896, South Korea
| | - Kamlendra Awasthi
- Department of Physics, Malaviya National Institute of Technology Jaipur, Jaipur-302017, Rajasthan, India.
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Sheikh TA, Ismail M, Rabbee MF, Khan H, Rafique A, Rasheed Z, Siddique A, Rafiq MZ, Khattak ZAK, Jillani SMS, Shahzad U, Akhtar MN, Saeed M, Alzahrani KA, Uddin J, Rahman MM, Verpoort F. 2D MXene-Based Nanoscale Materials for Electrochemical Sensing Toward the Detection of Hazardous Pollutants: A Perspective. Crit Rev Anal Chem 2024:1-46. [PMID: 39046991 DOI: 10.1080/10408347.2024.2379851] [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: 07/27/2024]
Abstract
MXenes (Mn+1XnTx), a subgroup of 2-dimensional (2D) materials, specifically comprise transition metal carbides, nitrides, and carbonitrides. They exhibit exceptional electrocatalytic and photocatalytic properties, making them well-suited for the detection and removal of pollutants from aqueous environments. Because of their high surface area and remarkable properties, they are being utilized in various applications, including catalysis, sensing, and adsorption, to combat pollution and mitigate its adverse effects. Different characterization techniques like XRD, SEM, TEM, UV-Visible spectroscopy, and Raman spectroscopy have been used for the structural elucidation of 2D MXene. Current responses against applied potential were measured during the electrochemical sensing of the hazardous pollutants in an aqueous system using a variety of electroanalytical techniques, including differential pulse voltammetry, amperometry, square wave anodic stripping voltammetry, etc. In this review, a comprehensive discussion on structural patterns, synthesis, properties of MXene and their application for electrochemical detection of lethal pollutants like hydroquionone, phenol, catechol, mercury and lead, etc. are presented. This review will be helpful to critically understand the methods of synthesis and application of MXenes for the removal of environmental pollutants.
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Affiliation(s)
- Tahir Ali Sheikh
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Ismail
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | | | - Hira Khan
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Ayesha Rafique
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Zeerak Rasheed
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Amna Siddique
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Zeeshan Rafiq
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | | | - Shehzada Muhammad Sajid Jillani
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Umer Shahzad
- Chemistry department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Muhammad Nadeem Akhtar
- Institute of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Mohsin Saeed
- Chemistry department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Khalid A Alzahrani
- Chemistry department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Jamal Uddin
- Center for Nanotechnology, Department of Natural Sciences, Coppin State University, Baltimore, Maryland, USA
| | - Mohammed M Rahman
- Chemistry department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Francis Verpoort
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, China
- National Research Tomsk Polytechnic University, Tomsk, Russian
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Mamipour Z, Kompany-Zareh M, Nematollahzadeh A. A dually emissive MPA-CdTe QDs@N, S-GQD nanosensor for sensitive and selective detection of 4-nitrophenol using two turn-off signals. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:6073-6081. [PMID: 37927300 DOI: 10.1039/d3ay01160g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
4-Nitrophenol (4-NP) is an extremely poisonous and carcinogenic phenol that poses serious health issues to humans. Therefore, it becomes highly demanded and urgent to determine 4-NP in water samples. In this study, we developed a facile and effective dually-emissive nanosensor containing simply mixed CdTe quantum dots (CdTe QDs) and N, S modified graphene quantum dots (N, S-GQDs) for 4-NP. The synthesized CdTe QDs and N, S-GQDs exhibited excitation-independent emission located at 540 nm and 420 nm, respectively. The nanosensor displayed two turn-off fluorescent signals when exposed to 4-NP. The degree of quenching varied depending on the excitation wavelength range used, which can be explained by the quenching phenomenon based on the inner filter effect (IFE). Moreover, analysis of the recorded excitation-emission matrix (EEM) data using the parallel factor analysis (PARAFAC) technique revealed a negative emission spectrum corresponding to non-emissive 4-NP. On the other hand, the species with no peak in fluorescence data had a negative spectrum as the PARAFAC emission loading. Under the optimized conditions, the CdTe QDs@GQD nanosensor achieved fast and highly sensitive detection of 4-NP within the concentration range of 0.0-30.0 μM, with a detection limit of 0.52 μΜ.
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Affiliation(s)
- Zahra Mamipour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran.
- Chemical Engineering Department, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran
| | - Mohsen Kompany-Zareh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran.
- Department of Chemistry, Dalhousie University, P.O. Box 15000, Halifax, Nova Scotia, B3H 4R2, Canada
| | - Ali Nematollahzadeh
- Chemical Engineering Department, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran
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5
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Zaidi SA, Shahzad F, Abbas A. Special Issue in "Nanomaterials and Their Applications in Sensing and Biosensing". BIOSENSORS 2023; 13:625. [PMID: 37366990 DOI: 10.3390/bios13060625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 06/28/2023]
Abstract
The identification of the target molecule is required for rapid and reliable clinical diagnosis and disease monitoring [...].
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Affiliation(s)
- Shabi Abbas Zaidi
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha 2713, Qatar
| | - Faisal Shahzad
- Department of Metallurgy & Materials Engineering (DMME) PIEAS, PO Nilore, Islamabad 44000, Pakistan
| | - Asad Abbas
- Institute for Sustainable Energy and the Environment, Department of Chemical and Biomolecular Engineering, Ohio University, Athens, OH 45701, USA
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Alebachew N, Murthy HCA, Gonfa BA, von Eschwege KG, Langner EHG, Coetsee E, Demissie TB. Nanocomposites with ZrO 2@S-Doped g-C 3N 4 as an Enhanced Binder-Free Sensor: Synthesis and Characterization. ACS OMEGA 2023; 8:13775-13790. [PMID: 37091396 PMCID: PMC10116625 DOI: 10.1021/acsomega.2c08174] [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: 12/25/2022] [Accepted: 03/22/2023] [Indexed: 05/03/2023]
Abstract
This study describes new electrocatalyst materials that can detect and reduce environmental pollutants. The synthesis and characterization of semiconductor nanocomposites (NCs) made from active ZrO2@S-doped g-C3N4 is presented. Electrochemical impedance spectroscopy (EIS) and Mott-Schottky (M-S) measurements were used to examine electron transfer characteristics of the synthesized samples. Using X-ray diffraction (XRD) and high-resolution scanning electron microscopy (HR-SEM) techniques, inclusion of monoclinic ZrO2 on flower-shaped S-doped-g-C3N4 was visualized. High-resolution X-ray photoelectron spectroscopy (XPS) revealed successful doping of ZrO2 into the lattice of S-doped g-C3N4. The electron transport mechanism between the electrolyte and the fluorine tin-oxide electrode (FTOE) was enhanced by the synergistic interaction between ZrO2 and S-doped g-C3N4 as co-modifiers. Development of a platform with improved conductivity based on an FTOE modified with ZrO2@S-doped g-C3N4 NCs resulted in an ideal platform for the detection of 4-nitrophenol (4-NP) in water. The electrocatalytic activity of the modified electrode was evaluated through determination of 4-NP by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) under optimum conditions (pH 5). ZrO2@S-doped g-C3N4 (20%)/FTOE exhibited good electrocatalytic activity with a linear range from 10 to 100 μM and a low limit of detection (LOD) of 6.65 μM. Typical p-type semiconductor ZrO2@S-doped g-C3N4 NCs significantly impact the superior detection of 4-NP due to its size, shape, optical properties, specific surface area and effective separation of electron-hole pairs. We conclude that the superior electrochemical sensor behavior of the ZrO2@S-doped g-C3N4 (20%)/FTOE surfaces results from the synergistic interaction between S-doped g-C3N4 and ZrO2 surfaces that produce an active NC interface.
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Affiliation(s)
- Nigussie Alebachew
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama 251, Ethiopia
| | - H. C. Ananda Murthy
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama 251, Ethiopia
- Department
of Prosthodontics, Saveetha Dental College & Hospital, Saveetha Institute of Medical and Technical Science
(SIMATS), Saveetha University, Chennai 600077, Tamil
Nadu, India
| | - Bedasa Abdisa Gonfa
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama 251, Ethiopia
| | - Karel G. von Eschwege
- Department
of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
| | - Ernst H. G. Langner
- Department
of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
| | - Elizabeth Coetsee
- Department
of Physics, University of the Free State, P.O. Box 339, Bloemfontein ZA9310, South Africa
| | - Taye B. Demissie
- Department
of Chemistry, University of Botswana, P.bag UB 00704 Gaborone, Botswana
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