1
|
Carneiro-Neto E, Li Z, Pereira E, Mathwig K, Fletcher PJ, Marken F. Understanding Transient Ionic Diode Currents and Impedance Responses for Aquivion-Coated Microholes. ACS APPLIED MATERIALS & INTERFACES 2023; 15:39905-39914. [PMID: 37567567 PMCID: PMC10450689 DOI: 10.1021/acsami.3c08543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023]
Abstract
Ionic diode based devices or circuits can be applied, for example, in electroosmotic pumps or in desalination processes. Aquivion ionomer coated asymmetrically over a Teflon film (5 μm thickness) with a laser-drilled microhole (approximately 10 μm diameter) gives a cationic diode with a rectification ratio of typically 10-20 (measured in 0.01 M NaCl with ±0.3 V applied bias). Steady state voltammetry, chronoamperometry, and electrochemical impedance spectroscopy data are employed to characterize the ionic diode performance parameters. Next, a COMSOL 6.0 finite element model is employed to quantitatively assess/compare transient phenomena and to extract mechanistic information by comparison with experimental data. The experimental diode time constant and diode switching process associated with a distorted semicircle (with a typical diode switching frequency of 10 Hz) in the Nyquist plot are reproduced by computer simulation and rationalized in terms of microhole diffusion-migration times. Fundamental understanding and modeling of the ionic diode switching process can be exploited in the rational/optimized design of new improved devices.
Collapse
Affiliation(s)
- Evaldo
Batista Carneiro-Neto
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
- Department
of Chemistry, Federal University of São
Carlos, Rod. Washington Luiz, Km 235, CEP, São
Carlos 13565-905, São
Paulo, Brazil
| | - Zhongkai Li
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
| | - Ernesto Pereira
- Department
of Chemistry, Federal University of São
Carlos, Rod. Washington Luiz, Km 235, CEP, São
Carlos 13565-905, São
Paulo, Brazil
| | - Klaus Mathwig
- imec
within OnePlanet Research Center, Bronland 10, 6708
WH Wageningen, The
Netherlands
| | - Philip J. Fletcher
- University
of Bath, Materials &
Chemical Characterisation Facility MC, Bath BA2 7AY, United Kingdom
| | - Frank Marken
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
| |
Collapse
|
2
|
Jiang H, Wang Y, Tan Z, Hu L, Shi J, Liu G, Yin Y, Cai Y, Jiang G. Dissolved metal ion removal by online hollow fiber ultrafiltration for enhanced size characterization of metal-containing nanoparticles with single-particle ICP-MS. J Environ Sci (China) 2023; 126:494-505. [PMID: 36503776 DOI: 10.1016/j.jes.2022.05.034] [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: 10/26/2021] [Revised: 05/17/2022] [Accepted: 05/20/2022] [Indexed: 06/17/2023]
Abstract
Single particle-inductively coupled plasma mass spectrometry (SP-ICP-MS) is a powerful tool for size-characterization of metal-containing nanoparticles (MCNs) at environmentally relevant concentrations, however, coexisting dissolved metal ions greatly interfere with the accuracy of particle size analysis. The purpose of this study is to develop an online technique that couples hollow fiber ultrafiltration (HFUF) with SP-ICP-MS to improve the accuracy and size detection limit of MCNs by removing metal ions from suspensions of MCNs. Through systematic optimization of conditions including the type and concentration of surfactant and complexing agent, carrier pH, and ion cleaning time, HFUF completely removes metal ions but retains the MCNs in suspension. The optimal conditions include using a mixture of 0.05 vol.% FL-70 and 0.5 mmol/L Na2S2O3 (pH = 8.0) as the carrier and 4 min as the ion cleaning time. At these conditions, HFUF-SP-ICP-MS accurately determines the sizes of MCNs, and the results agree with the size distribution determined by transmission electron microscopy, even when metal ions also are present in the sample. In addition, reducing the ionic background through HFUF also lowers the particle size detection limit with SP-ICP-MS (e.g., from 28.3 to 14.2 nm for gold nanoparticles). This size-based ion-removal principle provided by HFUF is suitable for both cations (e.g., Ag+) and anions (e.g., AuCl4-) and thus has good versatility compared to ion exchange purification and promising prospects for the removal of salts and macromolecules before single particle analysis.
Collapse
Affiliation(s)
- Haowen Jiang
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ying Wang
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiqiang Tan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Ligang Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jianbo Shi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Guangliang Liu
- Department of Chemistry and Biochemistry, Florida International University, Miami 33199, USA
| | - Yongguang Yin
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China.
| | - Yong Cai
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Chemistry and Biochemistry, Florida International University, Miami 33199, USA
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
3
|
Li S, Zhang X, Su J. Surface charge density governs the ionic current rectification direction in asymmetric graphene oxide channels. Phys Chem Chem Phys 2023; 25:7477-7486. [PMID: 36852635 DOI: 10.1039/d2cp05137k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Charged asymmetric channels are extensively investigated for the design of artificial biological channels, ionic diodes, artificial separation films, etc. These applications are attributed to the unique ionic current rectification phenomenon, where the surface charge density of the channel has a deep influence. In this work, we use molecular dynamics simulations to study the rectification phenomenon in asymmetric graphene oxide channels. A fascinating finding is that the ionic current rectification direction reverses from the negative to positive electric field direction with an increase in surface charge density. Specifically, at low charge density, the ionic flux reaches greater values in the negative electric field due to the enrichment of cations and anions, which provides a sufficient electrostatic shielding effect inside the channel and increases the possibility of ion release by the residues. However, at high charge density, the extremely strong residue attraction induces a Coulomb blockade effect in the negative electric field, which seriously impedes the ion transport and eventually leads to a smaller ionic current. Consequently, this ionic current order transition ultimately results in the rectification reversion phenomenon, providing a new route for the design of some novel nanofluidic devices.
Collapse
Affiliation(s)
- Shuang Li
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Xinke Zhang
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Jiaye Su
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
| |
Collapse
|
4
|
Leong IW, Tsutsui M, Yokota K, Murayama S, Taniguchi M. Regulating Nonlinear Ion Transport through a Solid-State Pore by Partial Surface Coatings. ACS APPLIED MATERIALS & INTERFACES 2023; 15:6123-6132. [PMID: 36661232 DOI: 10.1021/acsami.2c19485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Using functional nanofluidic devices to manipulate ion transport allows us to explore the nanoscale development of blue energy harvesters and iontronic building blocks. Herein, we report on a method to alter the nonlinear ionic current through a pore by partial dielectric coatings. A variety of dielectric materials are examined on both the inner and outer surfaces of the channel with four different patterns of coated or uncoated surfaces. Through controlling the specific part of the surface charge, the pore can behave like a resistor, diode, and bipolar junction transistor. We use numerical simulations to find out the reason for the asymmetric ion transport in the pore and illustrate the relationship between specifically charged surfaces and electroosmotic flow. These findings help understand the role of the corresponding surface composition in ion transport, which provides a direct approach to modify the electroosmotic-flow-driven ionic current rectification in the channel-based device via dielectric coatings.
Collapse
Affiliation(s)
- Iat Wai Leong
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Makusu Tsutsui
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Kazumichi Yokota
- National Institute of Advanced Industrial Science and Technology, Takamatsu, Kagawa 761-0395, Japan
| | - Sanae Murayama
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Masateru Taniguchi
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| |
Collapse
|
5
|
Li Z, Malpass-Evans R, McKeown NB, Carta M, Mathwig K, Lowe JP, Marken F. Effective electroosmotic transport of water in an intrinsically microporous polyamine (PIM-EA-TB). Electrochem commun 2021. [DOI: 10.1016/j.elecom.2021.107110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
|
6
|
Abu-Rjal R, Green Y. Bipolar Nanochannels: A Systematic Approach to Asymmetric Problems. ACS APPLIED MATERIALS & INTERFACES 2021; 13:27622-27634. [PMID: 34080433 DOI: 10.1021/acsami.1c05643] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nanofluidic diodes are capable of rectifying the electrical current by several orders of magnitude. In the current state of affairs, determining the rectification factor is not possible as it depends on many system parameters. In this work, we systematically scan the effects of geometry and excess counterion concentrations (i.e., surface charge effects). We show that the current-voltage response varies between the two extreme behaviors of unipolar and bipolar responses. The exact behavior depends on the geometry and surface charge properties of the system. Here, we have gone beyond the typical setup that only considers the dynamics within the nanochannel itself and we have included the effects of the adjoining microchannels. Systems that include both nanochannels and microchannels exhibit the classical signatures of concentration polarization, such as ionic depletion and enrichment. Here, where we have scanned a wide range of parameters, we show that bipolar and semi-bipolar systems exhibit a wider range of phenomena that are intrinsically more complicated. Our system characterization is for both, the much more investigated case of steady state and the less investigated, but equally interesting, time-transient case. For example, it is common to characterize the system by its steady-state result (current-voltage response, rectification factor, and transport number). Here, we demonstrate that the time-transient behavior of the fluxes can also be used to characterize the system, and that the time-dependent rectification factors and transport numbers are meaningful. The systematic approach taken in this work, and the results presented herein, can be used to further elucidate the complicated behavior of the current-voltage response of nanofluidic diodes and to rationalize experimental results. The insights of this work can be used to enhance and improve the design of all nanofluidic diodes.
Collapse
Affiliation(s)
- Ramadan Abu-Rjal
- Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- Faculty of Mechanical Engineering, Micro- and Nanofluidics Laboratory, Technion-Israel Institute of Technology, Technion City, Haifa 3200003, Israel
| | - Yoav Green
- Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| |
Collapse
|
7
|
Li Z, Wang L, Malpass‐Evans R, Carta M, McKeown NB, Mathwig K, Fletcher PJ, Marken F. Ionic Diode and Molecular Pump Phenomena Associated with Caffeic Acid Accumulated into an Intrinsically Microporous Polyamine (PIM‐EA‐TB). ChemElectroChem 2021. [DOI: 10.1002/celc.202100432] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Zhongkai Li
- Department of Chemistry University of Bath Claverton Down Bath BA2 7AY UK
| | - Lina Wang
- Department of Chemistry University of Bath Claverton Down Bath BA2 7AY UK
| | - Richard Malpass‐Evans
- EaStCHEM School of Chemistry University of Edinburgh, Joseph Black Building David Brewster Road Edinburgh, Scotland EH9 3JF UK
| | - Mariolino Carta
- Department of Chemistry Swansea University, College of Science, Grove Building Singleton Park Swansea SA2 8PP UK
| | - Neil B. McKeown
- EaStCHEM School of Chemistry University of Edinburgh, Joseph Black Building David Brewster Road Edinburgh, Scotland EH9 3JF UK
| | - Klaus Mathwig
- Stichting imec Nederland within OnePlanet Research Center Bronland 10 6708 WH Wageningen, The Netherlands
| | - Philip J. Fletcher
- University of Bath Materials & Chemical Characterisation Facility MC2 Bath BA2 7AY UK
| | - Frank Marken
- Department of Chemistry University of Bath Claverton Down Bath BA2 7AY UK
| |
Collapse
|
8
|
Riza Putra B, Tshwenya L, Buckingham MA, Chen J, Jeremiah Aoki K, Mathwig K, Arotiba OA, Thompson AK, Li Z, Marken F. Microscale Ionic Diodes: An Overview. ELECTROANAL 2021. [DOI: 10.1002/elan.202060614] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Budi Riza Putra
- Department of Chemistry University of Bath Claverton Down, Bath BA2 7AY UK
- Department of Chemistry Faculty of Mathematics and Natural Sciences Bogor Agricultural University Bogor, West Java Indonesia
| | - Luthando Tshwenya
- Department of Chemical Sciences University of Johannesburg Johannesburg, Doornfontein 2028 South Africa
| | - Mark A. Buckingham
- Department of Chemistry Britannia House King's College London London SE1 1DB UK
| | - Jingyuan Chen
- University of Fukui Department of Applied Physics 3-9-1 Bunkyo Fukui 9100017 Japan
| | - Koichi Jeremiah Aoki
- University of Fukui Department of Applied Physics 3-9-1 Bunkyo Fukui 9100017 Japan
| | - Klaus Mathwig
- Stichting imec Nederland within OnePlanet Research Center Bronland 10 6708 WH Wageningen Netherlands
| | - Omotayo A. Arotiba
- Department of Chemical Sciences University of Johannesburg Johannesburg, Doornfontein 2028 South Africa
- Centre for Nanomaterials Science Research University of Johannesburg South Africa
| | | | - Zhongkai Li
- Department of Chemistry University of Bath Claverton Down, Bath BA2 7AY UK
| | - Frank Marken
- Department of Chemistry University of Bath Claverton Down, Bath BA2 7AY UK
| |
Collapse
|
9
|
Intrinsically antibacterial thin film composite membranes with supramolecularly assembled lysozyme nanofilm as selective layer for molecular separation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117585] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
10
|
Tshwenya L, Putra BR, Orimolade BO, Marken F, Arotiba OA. Surface modified carbon nanomats provide cationic and anionic rectifier membranes in aqueous electrolyte media. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136750] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
11
|
Luo R, Xiao T, Li W, Liu Z, Wang Y. An ionic diode based on a spontaneously formed polypyrrole-modified graphene oxide membrane. RSC Adv 2020; 10:17079-17084. [PMID: 35521453 PMCID: PMC9053440 DOI: 10.1039/d0ra01145b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 04/24/2020] [Indexed: 12/30/2022] Open
Abstract
Asymmetric membranes derived from the stacking of graphene oxide (GO) nanosheets have attracted great attention for the fabrication of ionic diodes. Herein, we described an ionic diode based on a polypyrrole-modified GO membrane with a vertical asymmetry, which was achieved by a spontaneous oxidation polymerization of pyrrole monomers on one side of the GO membrane in vapor phase. This asymmetric modification resulted in an asymmetric geometry due to the occupation of the interlayer space of one side of the GO membrane by polypyrrole. Our ionic diode demonstrated an obvious ionic rectification behavior over a wide voltage range. A calculation based on Poisson-Nernst-Planck equations was used to theoretically investigate the role of asymmetric modification of polypyrrole.
Collapse
Affiliation(s)
- Rifeng Luo
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Tianliang Xiao
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Wenping Li
- Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education), School of Physics, Beihang University Beijing 100191 P. R. China
| | - Zhaoyue Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Yao Wang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal University Guangzhou 510006 P. R. China
| |
Collapse
|