1
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Zhao X, Chen H, Cui Y, Zhang X, Hao R. Dual-Mode Imaging of Dynamic Interaction between Bubbles and Single Nanoplates during the Electrocatalytic Hydrogen Evolution Process. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400273. [PMID: 38552218 DOI: 10.1002/smll.202400273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/20/2024] [Indexed: 08/17/2024]
Abstract
Gas bubble formation at electrochemical interfaces can significantly affect the efficiency and durability of electrocatalysts. However, obtaining comprehensive details on bubble evolution dynamics, particularly their dynamic interaction with high-performance structured electrocatalysts, poses a considerable challenge. Herein, dual-mode interference/total internal reflection fluorescence microscopy is introduced, which allows for the simultaneous capture of the evolution pathway of bubbles and the 3D motion of nanoplate electrocatalysts, providing high-resolution and accurate spatiotemporal information. During the hydrogen evolution reaction, the dynamics of hydrogen bubble generation and their interactions with single nanoplate electrocatalysts at the electrochemical interface are observed. The results unveiled that, under constant potential, bubbles initially manifest as fast-moving nanobubbles, transforming into stationary microbubbles subsequently. The morphology of stationary nanoplates regulates the trajectories of these moving nanobubbles while the pinned microbubbles induce the motion of the electrocatalysts. The dual-mode microscopy can be employed to scrutinize numerous multiphase electrochemical interactions with high spatiotemporal resolution, which can facilitate the rational design of high-performance electrocatalysts.
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Affiliation(s)
- Xin Zhao
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
- Research Center for Chemical Biology and Omics Analysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Houkai Chen
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
- Research Center for Chemical Biology and Omics Analysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yu Cui
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
- Research Center for Chemical Biology and Omics Analysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xinyu Zhang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
- Research Center for Chemical Biology and Omics Analysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Rui Hao
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
- Research Center for Chemical Biology and Omics Analysis, Southern University of Science and Technology, Shenzhen, 518055, China
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2
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Lipovka A, Fatkullin M, Averkiev A, Pavlova M, Adiraju A, Weheabby S, Al-Hamry A, Kanoun O, Pašti I, Lazarevic-Pasti T, Rodriguez RD, Sheremet E. Surface-Enhanced Raman Spectroscopy and Electrochemistry: The Ultimate Chemical Sensing and Manipulation Combination. Crit Rev Anal Chem 2024; 54:110-134. [PMID: 35435777 DOI: 10.1080/10408347.2022.2063683] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
One of the lessons we learned from the COVID-19 pandemic is that the need for ultrasensitive detection systems is now more critical than ever. While sensors' sensitivity, portability, selectivity, and low cost are crucial, new ways to couple synergistic methods enable the highest performance levels. This review article critically discusses the synergetic combinations of optical and electrochemical methods. We also discuss three key application fields-energy, biomedicine, and environment. Finally, we selected the most promising approaches and examples, the open challenges in sensing, and ways to overcome them. We expect this work to set a clear reference for developing and understanding strategies, pros and cons of different combinations of electrochemical and optical sensors integrated into a single device.
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Affiliation(s)
| | | | | | | | | | | | | | - Olfa Kanoun
- Technische Universität Chemnitz, Chemnitz, Germany
| | - Igor Pašti
- Faculty of Physical Chemistry, University of Belgrade, Belgrade, Serbia
| | - Tamara Lazarevic-Pasti
- Department of Physical Chemistry, "VINČA" Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Vinca, Serbia
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3
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Arias-Aranda LR, Salinas G, Kuhn A, Xu G, Kanoufi F, Bouffier L, Sojic N. Complex electrochemiluminescence patterns shaped by hydrodynamics at a rotating bipolar electrode. Chem Sci 2024; 15:8723-8730. [PMID: 38873074 PMCID: PMC11168095 DOI: 10.1039/d4sc02528h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 05/16/2024] [Indexed: 06/15/2024] Open
Abstract
Electrochemiluminescence (ECL) is a powerful analytical approach that enables the optical readout of electrochemical processes. Over the last few years, ECL has gained considerable attention due to its large number of applications, including chemical sensing, bioanalysis and microscopy. In these fields, the promotion of ECL at bipolar electrodes has offered unprecedented opportunities thanks to wireless electrochemical addressing. Herein, we take advantage of the synergy between ECL and bipolar electrochemistry (BE) for imaging light-emitting layers shaped by hydrodynamics, polarization effects and the nature of the electrochemical reactions taking place wirelessly on a rotating bipolar electrode. The proof-of-principle is established with the model ECL system [Ru(bpy)3]2+/tri-n-propylamine. Interestingly, the ECL-emitting region moves and expands progressively from the anodic bipolar pole to the cathodic one where ECL reactants should neither be generated nor ECL be observed. Therefore, it shows a completely unusual behavior in the ECL field since the region where ECL reagents are oxidized does not coincide with the zone where ECL light is emitted. In addition, the ECL patterns change progressively to an "ECL croissant" and then to a complete ring shape due to the hydrodynamic convection. Such an approach allows the visualization of complex light-emitting patterns, whose shape is directly controlled by the rotation speed, chemical reactivity and BE-induced polarization. Indeed, the bipolar electrochemical addressing of the electrode breaks the circular symmetry of the reported rotating system. This unexplored and a priori simple configuration yields unique ECL behavior and raises new curious questions from the theoretical and experimental points of view in analytical chemistry. Finally, this novel wireless approach will be useful for the development of original ECL systems for analytical chemistry, studies of electrochemical reactivity, coupling microfluidics with ECL and imaging.
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Affiliation(s)
| | - Gerardo Salinas
- Univ. Bordeaux, CNRS UMR 5255, Bordeaux INP, Site ENSMAC 33607 Pessac France
| | - Alexander Kuhn
- Univ. Bordeaux, CNRS UMR 5255, Bordeaux INP, Site ENSMAC 33607 Pessac France
| | - Guobao Xu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun Jilin 130022 P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China No. 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | | | - Laurent Bouffier
- Univ. Bordeaux, CNRS UMR 5255, Bordeaux INP, Site ENSMAC 33607 Pessac France
| | - Neso Sojic
- Univ. Bordeaux, CNRS UMR 5255, Bordeaux INP, Site ENSMAC 33607 Pessac France
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4
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Saqib M, Zafar M, Halawa MI, Murtaza S, Kamal GM, Xu G. Nanoscale Luminescence Imaging/Detection of Single Particles: State-of-the-Art and Future Prospects. ACS MEASUREMENT SCIENCE AU 2024; 4:3-24. [PMID: 38404493 PMCID: PMC10885340 DOI: 10.1021/acsmeasuresciau.3c00052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/28/2023] [Accepted: 11/13/2023] [Indexed: 02/27/2024]
Abstract
Single-particle-level measurements, during the reaction, avoid averaging effects that are inherent limitations of conventional ensemble strategies. It allows revealing structure-activity relationships beyond averaged properties by considering crucial particle-selective descriptors including structure/morphology dynamics, intrinsic heterogeneity, and dynamic fluctuations in reactivity (kinetics, mechanisms). In recent years, numerous luminescence (optical) techniques such as chemiluminescence (CL), electrochemiluminescence (ECL), and fluorescence (FL) microscopies have been emerging as dominant tools to achieve such measurements, owing to their diversified spectroscopy principles, noninvasive nature, higher sensitivity, and sufficient spatiotemporal resolution. Correspondingly, state-of-the-art methodologies and tools are being used for probing (real-time, operando, in situ) diverse applications of single particles in sensing, medicine, and catalysis. Herein, we provide a concise and comprehensive perspective on luminescence-based detection and imaging of single particles by putting special emphasis on their basic principles, mechanistic pathways, advances, challenges, and key applications. This Perspective focuses on the development of emission intensities and imaging based individual particle detection. Moreover, several key examples in the areas of sensing, motion, catalysis, energy, materials, and emerging trends in related areas are documented. We finally conclude with the opportunities and remaining challenges to stimulate further developments in this field.
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Affiliation(s)
- Muhammad Saqib
- Institute
of Chemistry, Khawaja Fareed University
of Engineering and Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Mariam Zafar
- Institute
of Chemistry, Khawaja Fareed University
of Engineering and Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Mohamed Ibrahim Halawa
- Department
of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
- Department
of Chemistry, College of Science, United
Arab Emirates University, Al Ain 15551, United Arab
Emirates
| | - Shahzad Murtaza
- Institute
of Chemistry, Khawaja Fareed University
of Engineering and Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Ghulam Mustafa Kamal
- Institute
of Chemistry, Khawaja Fareed University
of Engineering and Information Technology, Rahim Yar Khan 64200, Pakistan
| | - Guobao Xu
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of
Sciences, 5625 Renmin
Street, Changchun, Jilin 130022, China
- School
of Applied Chemistry and Engineering, University
of Science and Technology of China, Hefei 230026, China
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5
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Linfield S, Gawinkowski S, Nogala W. Toward the Detection Limit of Electrochemistry: Studying Anodic Processes with a Fluorogenic Reporting Reaction. Anal Chem 2023; 95:11227-11235. [PMID: 37461137 PMCID: PMC10398625 DOI: 10.1021/acs.analchem.3c00694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Recently, shot noise has been shown to be an inherent part of all charge-transfer processes, leading to a practical limit of quantification of 2100 electrons (≈0.34 fC) [ Curr. Opin. Electrochem. 2020, 22, 170-177]. Attainable limits of quantification are made much larger by greater background currents and insufficient instrumentation, which restricts progress in sensing and single-entity applications. This limitation can be overcome by converting electrochemical charges into photons, which can be detected with much greater sensitivity, even down to a single-photon level. In this work, we demonstrate the use of fluorescence, induced through a closed bipolar setup, to monitor charge-transfer processes below the detection limit of electrochemical workstations. During this process, the oxidation of ferrocenemethanol (FcMeOH) in one cell is used to concurrently drive the oxidation of Amplex Red (AR), a fluorogenic redox molecule, in another cell. The spectroelectrochemistry of AR is investigated and new insights on the commonplace practice of using deprotonated glucose to limit AR photooxidation are presented. The closed bipolar setup is used to produce fluorescence signals corresponding to the steady-state voltammetry of FcMeOH on a microelectrode. Chronopotentiometry is then used to show a linear relationship between the charge passed through FcMeOH oxidation and the integrated AR fluorescence signal. The sensitivity of the measurements obtained at different timescales varies between 2200 and 500 electrons per detected photon. The electrochemical detection limit is approached using a diluted FcMeOH solution in which no faradaic current signal is observed. Nevertheless, a fluorescence signal corresponding to FcMeOH oxidation is still seen, and the detection of charges down to 300 fC is demonstrated.
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Affiliation(s)
- Steven Linfield
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Sylwester Gawinkowski
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Wojciech Nogala
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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6
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O'Connor S, Dennany L, O'Reilly E. Evolution of nanomaterial Electrochemiluminescence luminophores towards biocompatible materials. Bioelectrochemistry 2023; 149:108286. [DOI: 10.1016/j.bioelechem.2022.108286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 09/30/2022] [Accepted: 10/02/2022] [Indexed: 11/06/2022]
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7
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Lemineur JF, Wang H, Wang W, Kanoufi F. Emerging Optical Microscopy Techniques for Electrochemistry. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2022; 15:57-82. [PMID: 35216529 DOI: 10.1146/annurev-anchem-061020-015943] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
An optical microscope is probably the most intuitive, simple, and commonly used instrument to observe objects and discuss behaviors through images. Although the idea of imaging electrochemical processes operando by optical microscopy was initiated 40 years ago, it was not until significant progress was made in the last two decades in advanced optical microscopy or plasmonics that it could become a mainstream electroanalytical strategy. This review illustrates the potential of different optical microscopies to visualize and quantify local electrochemical processes with unprecedented temporal and spatial resolution (below the diffraction limit), up to the single object level with subnanoparticle or single-molecule sensitivity. Developed through optically and electrochemically active model systems, optical microscopy is now shifting to materials and configurations focused on real-world electrochemical applications.
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Affiliation(s)
| | - Hui Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China;
| | - Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China;
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8
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Determining the depth of surface charging layer of single Prussian blue nanoparticles with pseudocapacitive behaviors. Nat Commun 2022; 13:2316. [PMID: 35484125 PMCID: PMC9051208 DOI: 10.1038/s41467-022-30058-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 04/12/2022] [Indexed: 11/25/2022] Open
Abstract
Understanding the hybrid charge-storage mechanisms of pseudocapacitive nanomaterials holds promising keys to further improve the performance of energy storage devices. Based on the dependence of the light scattering intensity of single Prussian blue nanoparticles (PBNPs) on their oxidation state during sinusoidal potential modulation at varying frequencies, we present an electro-optical microscopic imaging approach to optically acquire the Faradaic electrochemical impedance spectroscopy (oEIS) of single PBNPs. Here we reveal typical pseudocapacitive behavior with hybrid charge-storage mechanisms depending on the modulation frequency. In the low-frequency range, the optical amplitude is inversely proportional to the square root of the frequency (∆I ∝ f−0.5; diffusion-limited process), while in the high-frequency range, it is inversely proportional to the frequency (∆I ∝ f−1; surface charging process). Because the geometry of single cuboid-shaped PBNPs can be precisely determined by scanning electron microscopy and atomic force microscopy, oEIS of single PBNPs allows the determination of the depth of the surface charging layer, revealing it to be ~2 unit cells regardless of the nanoparticle size. The surface charging layer in nanomaterials, which determines their pseudocapacitive behavior, is challenging to characterize. Here the authors perform Faradic electrochemical impedance spectroscopy measurements of single cuboid Prussian blue nanoparticles, displaying a hybrid charge storage mechanism, and determine the depth of the surface charging layer.
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9
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The Effect of Ionic Strength on the Electrochemiluminescence Generation by Tris(2,2′-bipyridyl)ruthenium(II)/Tri-n-propylamine. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-2036-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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10
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Pan S, Li X, Yadav J. Single-nanoparticle spectroelectrochemistry studies enabled by localized surface plasmon resonance. Phys Chem Chem Phys 2021; 23:19120-19129. [PMID: 34524292 DOI: 10.1039/d1cp02801d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This review describes recent progress of spectroelectrochemistry (SEC) analysis of single metallic nanoparticles (NPs) which have strong surface plasmon resonance properties. Dark-field scattering (DFS), photoluminescence (PL), and electrogenerated chemiluminescence (ECL) are three commonly used optical methods to detect individual NPs and investigate their local redox activities in an electrochemical cell. These SEC methods are highly dependent on a strong light-scattering cross-section of plasmonic metals and their electrocatalytic characteristics. The surface chemistry and the catalyzed reaction mechanism of single NPs and their chemical transformations can be studied using these SEC methods. Recent progress in the experimental design and fundamental understanding of single-NP electrochemistry and catalyzed reactions using DFS, PL, and ECL is described along with selected examples from recent publications in this field. Perspectives on the challenges and possible solutions for these SEC methods and potential new directions are discussed.
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Affiliation(s)
- Shanlin Pan
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Xiao Li
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Jeetika Yadav
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA.
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11
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A critical review of fundamentals and applications of electrochemical development and imaging of latent fingerprints. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138798] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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12
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Djoumer R, Chovin A, Demaille C, Dejous C, Hallil H. Real‐time Conversion of Electrochemical Currents into Fluorescence Signals Using 8‐Hydroxypyrene‐1,3,6‐trisulfonic Acid (HPTS) and Amplex Red as Fluorogenic Reporters. ChemElectroChem 2021. [DOI: 10.1002/celc.202100517] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Rabia Djoumer
- Laboratoire d'Electrochimie Moléculaire Université de Paris CNRS UMR 7591 75006 Paris France
| | - Arnaud Chovin
- Laboratoire d'Electrochimie Moléculaire Université de Paris CNRS UMR 7591 75006 Paris France
| | - Christophe Demaille
- Laboratoire d'Electrochimie Moléculaire Université de Paris CNRS UMR 7591 75006 Paris France
| | - Corinne Dejous
- Laboratoire IMS Université de Bordeaux Bordeaux INP CNRS UMR5218 33405 Talence France
| | - Hamida Hallil
- Laboratoire IMS Université de Bordeaux Bordeaux INP CNRS UMR5218 33405 Talence France
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13
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Lin M, Zhou Y, Bu L, Bai C, Tariq M, Wang H, Han J, Huang X, Zhou X. Single-Nanoparticle Coulometry Method with High Sensitivity and High Throughput to Study the Electrochemical Activity and Oscillation of Single Nanocatalysts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2007302. [PMID: 33719172 DOI: 10.1002/smll.202007302] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/16/2021] [Indexed: 06/12/2023]
Abstract
To explore nanocatalysts with high electro-catalytic performance and less loading of precious metals, efforts have been made to develop electrochemical methods with high spatial resolution at the single nanoparticle level. Herein, a highly sensitive single-nanoparticle coulometry method is successfully developed to study the electrochemical activity and oscillation of single PtTe nanocatalysts. Based on microbattery reactions involving the formic acid electro-oxidation and the deposition of Ag on the single PtTe nanocatalyst surface, this method enables the transition from the undetectable sub-fA electric signal of the formic acid electro-oxidation into strong localized surface plasmon resonance scattering signal of Ag detected by dark-field microscopy. The lowest limiting current for a single nanocatalyst is found to be as low as 25.8 aA. Different trends of activity versus the formic acid concentration and types of activity of the single nanocatalyst have been discovered. Unveiled frequency-amplitude graph shows that the two electrochemical oscillation modes of low frequency with high amplitude and vice versa coexist in a single PtTe nanocatalyst, indicating the abundantly smooth surfaces and defects of nanocatalysts. This conducted study will open up the new avenue for further behavioral and mechanistic investigation of more types of nanocatalysts in the electrochemistry community.
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Affiliation(s)
- Mohan Lin
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Suzhou, 215123, China
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Yingke Zhou
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- School of Materials Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Lingzheng Bu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Chuang Bai
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Suzhou, 215123, China
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Muhammad Tariq
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Huihui Wang
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Suzhou, 215123, China
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Jinli Han
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Xiaoqing Huang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Xiaochun Zhou
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Suzhou, 215123, China
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, China
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14
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Doan VD, Luc VS, Nguyen TLH, Nguyen TD, Nguyen TD. Utilizing waste corn-cob in biosynthesis of noble metallic nanoparticles for antibacterial effect and catalytic degradation of contaminants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:6148-6162. [PMID: 31863387 DOI: 10.1007/s11356-019-07320-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 12/05/2019] [Indexed: 06/10/2023]
Abstract
In the present study, cost-effective, and environmentally friendly fabrication of silver and gold nanoparticles was performed by using aqueous extract of waste corn-cob. The formation of the metallic nanoparticles (MNPs) was optimized by UV-Vis method. The phytoconstituents were responsible for reduction of silver and gold ions to silver nanoparticles (CC-AgNPs) and gold nanoparticles (CC-AuNPs) which were demonstrated by Fourier-transform infrared (FTIR) spectroscopy while formation of AgCl was attributed to the presence of chloride ions in the aqueous extract. The crystalline nature of the AgNPs, AgCl, and AuNPs was confirmed using the X-ray diffraction (XRD) and selected area electron diffraction (SAED) patterns. Morphological studies showed that the synthesized CC-AgNPs existed in spherical shape with the size ranging from 2 to 28 nm possessing an average value of 11 nm while CC-AuNPs were present in the multiple shapes with size ranging from 5 to 50 nm possessing an average value of 35 nm. For studies on bioactive application, the CC-AgNPs exhibited a high antibacterial activity against three bacterial strains including Salmonella typhimurium, Bacillus cereus, and Staphylococcus aureus. In addition, the catalytic efficiency of MNPs was investigated for reduction of o-, m-, p-nitrophenols, and degradation of organic dyes including Eosin Y and Rhodamine 6G. The rate constants calculated from the kinetical data revealed that the biosynthesized nanoparticles are excellent catalysts in potential applications for treatment of wastewater. Graphical abstract .
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Affiliation(s)
- Van-Dat Doan
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Van-Sieu Luc
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
- Institute of Chemical Technology, Vietnam Academy of Science and Technology, 1 Mac Dinh Chi Street, District 1, Ho Chi Minh City, Vietnam
| | - Thi Lan-Huong Nguyen
- Institute of Biotechnology and Food Technology, Industrial university of Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Thi-Dung Nguyen
- Division of Food Biotechnology, Biotechnology Center of Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Thanh-Danh Nguyen
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam.
- Institute of Chemical Technology, Vietnam Academy of Science and Technology, 1 Mac Dinh Chi Street, District 1, Ho Chi Minh City, Vietnam.
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15
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Wang Y, Guo W, Yang Q, Su B. Electrochemiluminescence Self-Interference Spectroscopy with Vertical Nanoscale Resolution. J Am Chem Soc 2020; 142:1222-1226. [DOI: 10.1021/jacs.9b12833] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yafeng Wang
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Weiliang Guo
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Qian Yang
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Bin Su
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
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16
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Wang Y, Yang Q, Su B. Spatially resolved electrochemistry enabled by thin-film optical interference. Chem Commun (Camb) 2020; 56:12359-12362. [DOI: 10.1039/d0cc05265e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemical reactions occurring on the local surface can be spatially resolved by successive interferometric imaging of the nanochannel membrane coated electrode.
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Affiliation(s)
- Yafeng Wang
- Institute of Analytical Chemistry
- Department of Chemistry
- Zhejiang University
- Hangzhou 310058
- China
| | - Qian Yang
- Institute of Analytical Chemistry
- Department of Chemistry
- Zhejiang University
- Hangzhou 310058
- China
| | - Bin Su
- Institute of Analytical Chemistry
- Department of Chemistry
- Zhejiang University
- Hangzhou 310058
- China
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Fuladpanjeh‐Hojaghan B, Elsutohy MM, Kabanov V, Heyne B, Trifkovic M, Roberts EPL. In‐Operando Mapping of pH Distribution in Electrochemical Processes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909238] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | | | - Vladimir Kabanov
- Department of ChemistryUniversity of Calgary 2500 University Drive NW Calgary AB Canada
| | - Belinda Heyne
- Department of ChemistryUniversity of Calgary 2500 University Drive NW Calgary AB Canada
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Fuladpanjeh‐Hojaghan B, Elsutohy MM, Kabanov V, Heyne B, Trifkovic M, Roberts EPL. In‐Operando Mapping of pH Distribution in Electrochemical Processes. Angew Chem Int Ed Engl 2019; 58:16815-16819. [DOI: 10.1002/anie.201909238] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/10/2019] [Indexed: 01/18/2023]
Affiliation(s)
| | | | - Vladimir Kabanov
- Department of ChemistryUniversity of Calgary 2500 University Drive NW Calgary AB Canada
| | - Belinda Heyne
- Department of ChemistryUniversity of Calgary 2500 University Drive NW Calgary AB Canada
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