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Jamdar M, Monsef R, Ganduh SH, Dawi EA, Jasim LS, Salavati-Niasari M. Unraveling the potential of sonochemically achieved DyMnO 3/Dy 2O 3 nanocomposites as highly efficient visible-light-driven photocatalysts in decolorization of organic contamination. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 269:115801. [PMID: 38064791 DOI: 10.1016/j.ecoenv.2023.115801] [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: 09/08/2023] [Revised: 12/02/2023] [Accepted: 12/05/2023] [Indexed: 01/12/2024]
Abstract
In the present day, the widespread presence of lingering contaminants in ecosystems has prompted scientists to develop novel semiconductor nanoarchitectures that assist in photocatalytic reactions mediated by visible light. As a result, we propose to prepare a series of Dy-Mn-O based nano-catalysts using a sonochemical approach utilizing various ionic phases of surfactants as structure-directing agents. In this study, X-ray diffraction (XRD) and Rietveld refinement techniques were used to explore the fundamental effects of surfactants on the compositional-structural features of the materials. In terms of morphological profiles, DyMnO3/Dy2O3 (DM) nanostructures fabricated with Triton X-80 as a structure-directing agent showed the best uniformity with an acceptable size range between 14.14 and 52.35 nm. In the visible-light-driven photocatalytic domain, these nanocomposites provide high responsiveness based on their optical band gap value of 2.0 eV. According to our findings, two individual factors affect dye activity, namely dye type and concentration, which is why a high decomposition efficiency of 78.8% was obtained for 10 ppm Acid violet (AV) using DyMnO3/Dy2O3 nanocomposites after 120 min of exposure to visible light. Furthermore, radical quenching test confirmation confirmed the mechanistic behind the degradation process. This indicates that active species of O2•- and •OH may play a significant role in photocatalysis. As a result of repeated processes over three consecutive cycles, binary DyMnO3/Dy2O3 nanocomposites had an efficiency of 64.4% in removing dyes from the environment, indicating their high stability.
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Affiliation(s)
- Mina Jamdar
- Institute of Nano Science and Nano Technology, University of Kashan, P. O. Box.87317-51167, Kashan, Iran
| | - Rozita Monsef
- Institute of Nano Science and Nano Technology, University of Kashan, P. O. Box.87317-51167, Kashan, Iran
| | - Safaa H Ganduh
- Department of Chemistry Pharmaceutical, College of Pharmacy, University of Al-Qadisiyah, Diwaniyah, Iraq
| | - Elmuez A Dawi
- College of Humanities and Sciences, Department of Mathematics, and Science, Ajman University, P.O. Box 346, Ajman, UAE
| | - Layth S Jasim
- Department of Chemistry, College of Education, University of Al-Qadisiyah, Diwaniyah, Iraq
| | - Masoud Salavati-Niasari
- Institute of Nano Science and Nano Technology, University of Kashan, P. O. Box.87317-51167, Kashan, Iran.
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Kumar S, Tahira A, Bhatti AL, Bhatti MA, Mari RH, Shaikh NM, Solangi MY, Nafady A, Emo M, Vigolo B, Infantes-Molina A, Vomiero A, Ibupoto ZH. Transforming NiCo 2O 4 nanorods into nanoparticles using citrus lemon juice enhancing electrochemical properties for asymmetric supercapacitor and water oxidation. RSC Adv 2023; 13:18614-18626. [PMID: 37346947 PMCID: PMC10280130 DOI: 10.1039/d3ra02438e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 05/17/2023] [Indexed: 06/23/2023] Open
Abstract
Recently, the nanostructured nickel-cobalt bimetallic oxide (NiCo2O4) material with high electrochemical activity has received intensive attention. Beside this, the biomass assisted synthesis of NiCo2O4 is gaining popularity due to its advantageous features such as being low cost, simplicity, minimal use of toxic chemicals, and environment-friendly and ecofriendly nature. The electrochemical activity of spinel NiCo2O4 is associated with its mixed metal oxidation states. Therefore, much attention has been paid to the crystal quality, morphology and tunable surface chemistry of NiCo2O4 nanostructures. In this study, we have used citrus lemon juice consisting of a variety of chemical compounds having the properties of a stabilizing agent, capping agent and chelating agent. Moreover, the presence of several acidic chemical compounds in citrus lemon juice changed the pH of the growth solution and consequently we observed surface modified and structural changes that were found to be very effective for the development of energy conversion and energy storage systems. These naturally occurring compounds in citrus lemon juice played a dynamic role in transforming the nanorod morphology of NiCo2O4 into small and well-packed nanoparticles. Hence, the prepared NiCo2O4 nanostructures exhibited a new surface-oriented nanoparticle morphology, high concentration of defects on the surface (especially oxygen vacancies), sufficient ionic diffusion and reaction of electrolytic ions, enhanced electrical conductivity, and favorable reaction kinetics at the interface. The electrocatalytic properties of the NiCo2O4 nanostructures were studied in oxygen evolution reaction (OER) at a low overpotential of 250 mV for 10 mA cm-2, Tafel slope of 98 mV dec-1, and durability of 40 h. Moreover, an asymmetric supercapacitor was produced and the obtained results indicated a high specific capacitance of (Cs) of 1519.19 F g-1, and energy density of 33.08 W h kg-1 at 0.8 A g-1. The enhanced electrochemical performance could be attributed to the favorable structural changes, surface modification, and surface crystal facet exposure due to the use of citrus lemon juice. The proposed method of transformation of nanorod to nanoparticles could be used for the design of a new generation of efficient electrocatalyst materials for energy storage and conversion uses.
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Affiliation(s)
- Shusheel Kumar
- Institute of Physics, University of Sindh Jamshoro 76080 Sindh Pakistan
| | - Aneela Tahira
- Institute of Chemistry, Shah Abdul Latif University Khairpur Mirs Sindh Pakistan
| | | | - Muhammad Ali Bhatti
- Institute of Environmental Sciences, University of Sindh Jamshoro 76080 Sindh Pakistan
| | - Riaz Hussain Mari
- Institute of Physics, University of Sindh Jamshoro 76080 Sindh Pakistan
| | | | | | - Ayman Nafady
- Chemistry Department, College of Science, King Saud University Riyadh 11451 Saudi Arabia
| | - Mélanie Emo
- Université de Lorraine, CNRS, IJL F-54000 Nancy France
| | | | - Antonia Infantes-Molina
- Department of Inorganic Chemistry, Crystallography and Mineralogy, Unidad Asociada al ICP-CSIC, Faculty of Sciences, University of Malaga, Campus de Teatinos 29071 Malaga Spain
| | - Alberto Vomiero
- Department of Engineering Sciences and Mathematics, Division of Material Science, Luleå University of Technology Luleå Sweden
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice Venezia Mestre Italy
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Amiri M, Akbari Javar H, Mahmoudi-Moghaddam H, Salavati-Niasari M. Green synthesis of perovskite-type nanocomposite using Crataegus for modification of bisphenol a sensor. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Review—Recent Progress in Graphene Based Modified Electrodes for Electrochemical Detection of Dopamine. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10070249] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Graphene and its derivatives have been widely used for the electrochemical detection of dopamine (DA) neurotransmitter, thanks to its high surface area and excellent conductivity. Modified graphene and graphene-based nanocomposites have shown improved catalytic activity towards DA detection. Various modification approaches have been taken, including heteroatom doping and association with other nanomaterials. This review summarizes and highlights the recent advances in graphene-based electrodes for the electrochemical detection of DA. It also aims to provide an overview of the advantages of using polymer as a linker platform to form graphene-based nanocomposites applied to electrochemical DA sensors.
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A molecularly imprinted electrochemical biosensor based on hierarchical Ti 2Nb 10O 29 (TNO) for glucose detection. Mikrochim Acta 2021; 189:24. [PMID: 34894290 DOI: 10.1007/s00604-021-05128-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 12/02/2021] [Indexed: 10/19/2022]
Abstract
A novel molecularly imprinted electrochemical biosensor for glucose detection is reported based on a hierarchical N-rich carbon conductive-coated TNO structure (TNO@NC). Firstly, TNO@NC was fabricated by a novel polypyrrole-chemical vapor deposition (PPy-CVD) method with minimal waste generation. Afterward, the electrode modification with TNO@NC was performed by dropping TNO@NC particles on glassy carbon electrode surfaces by infrared heat lamp. Finally, the glucose-imprinted electrochemical biosensor was developed in presence of 75.0 mM pyrrole and 25.0 mM glucose in a potential range from + 0.20 to + 1.20 V versus Ag/AgCl via cyclic voltammetry (CV). The physicochemical and electrochemical characterizations of the fabricated molecularly imprinted biosensor was conducted by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD) method, X-ray photoelectron spectroscopy (XPS), electrochemical impedance spectroscopy (EIS), and CV techniques. The findings demonstrated that selective, sensitive, and stable electrochemical signals were proportional to different glucose concentrations, and the sensitivity of molecularly imprinted electrochemical biosensor for glucose detection was estimated to be 18.93 μA μM-1 cm-2 (R2 = 0.99) at + 0.30 V with the limit of detection (LOD) of 1.0 × 10-6 M. Hence, it can be speculated that the fabricated glucose-imprinted biosensor may be used in a multitude of areas, including public health and food quality.
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Thakur N, Gupta D, Mandal D, Nagaiah TC. Ultrasensitive electrochemical biosensors for dopamine and cholesterol: recent advances, challenges and strategies. Chem Commun (Camb) 2021; 57:13084-13113. [PMID: 34811563 DOI: 10.1039/d1cc05271c] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The rapid and accurate determination of the dopamine (neurotransmitter) and cholesterol level in bio-fluids is significant because they are crucial bioanalytes for several lethal diseases, which require early diagnosis. The level of DA in the brain is modulated by the dopamine active transporter (DAT), and is influenced by cholesterol levels in the lipid membrane environment. Accordingly, electrochemical biosensors offer rapid and accurate detection and exhibit unique features such as low detection limits even with reduced volumes of analyte, affordability, simple handling, portability and versatility, making them appropriate to deal with augmented challenges in current clinical and point-of-care diagnostics for the determination of dopamine (DA) and cholesterol. This feature article focuses on the development of ultrasensitive electrochemical biosensors for the detection of cholesterol and DA for real-time and onsite applications that can detect targeted analytes with reduced volumes and sub-picomolar concentrations with quick response times. Furthermore, the development of ultrasensitive biosensors via cost-effective, simple fabrication procedures, displaying high sensitivity, selectivity, reliability and good stability is significant in the impending era of electrochemical biosensing. Herein, we emphasize on recent advanced nanomaterials used for the ultrasensitive detection of DA and cholesterol and discuss in depth their electrochemical activities towards ultrasensitive responses. Key points describing future perspectives and the challenges during detection with their probable solutions are discussed, and the current market is also surveyed. Further, a comprehensive review of the literature indicates that there is room for improvement in the miniaturization of cholesterol and dopamine biosensors for lab-on-chip devices and overcoming the current technical limitations to facilitate full utilization by patients at home.
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Affiliation(s)
- Neha Thakur
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab - 140001, India.
| | - Divyani Gupta
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab - 140001, India.
| | - Debaprasad Mandal
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab - 140001, India.
| | - Tharamani C Nagaiah
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab - 140001, India.
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Sensitive Electrochemical Detection of Bioactive Molecules (Hydrogen Peroxide, Glucose, Dopamine) with Perovskites-Based Sensors. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9100289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Perovskite-modified electrodes have received increasing attention in the last decade, due to their electrocatalytic properties to undergo the sensitive and selective detection of bioactive molecules, such as hydrogen peroxide, glucose, and dopamine. In this review paper, different types of perovskites involved for their electrocatalytic properties are described, and the proposed mechanism of detection is presented. The analytical performances obtained for different electroactive molecules are listed and compared with those in terms of the type of perovskite used, its nanostructuration, and its association with other conductive nanomaterials. The analytical performance obtained with perovskites is shown to be better than those of Ni and Co oxide-based electrochemical sensors. Main trends and future challenges for enlarging and improving the use of perovskite-based electrochemical sensors are then discussed.
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Kumar EA, Chen TW, Chen SM, Wang TJ, Anthuvan AJ, AlOmar SY, Ahmad N, Chang YH. A disposable electrochemical sensor based on iron molybdate for the analysis of dopamine in biological samples. NEW J CHEM 2021. [DOI: 10.1039/d1nj01718g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Developing cost-effective approaches for the fabrication of electrochemical devices is instantly needed for transferring from basic research to point-care technology.
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Affiliation(s)
- Elumalai Ashok Kumar
- Department of Electro-Optical Engineering
- National Taipei University of Technology
- Taipei 106
- Taiwan
- Department of Materials and Mineral Resources Engineering
| | - Tse-Wei Chen
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 106
- Taiwan
- Research and Development Center for Smart Textile Technology
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 106
- Taiwan
| | - Tzyy-Jiann Wang
- Department of Electro-Optical Engineering
- National Taipei University of Technology
- Taipei 106
- Taiwan
| | | | - Suliman Yousef AlOmar
- Doping Research Chair, Zoology Department
- College of Science
- King Saud University
- Kingdom of Saudi Arabia
| | - Naushad Ahmad
- Chemistry Department
- College of Science
- King Saud University
- Kingdom of Saudi Arabia
| | - Yu-Hsu Chang
- Department of Materials and Mineral Resources Engineering
- Institute of Mineral Resources Engineering
- National Taipei University of Technology
- Taipei 106
- Taiwan
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