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Mhatre S, Simon S, Sjöblom J. Experimental Evidence of Enhanced Adsorption Dynamics at Liquid-Liquid Interfaces under an Electric Field. Anal Chem 2020; 92:12860-12870. [PMID: 32892617 DOI: 10.1021/acs.analchem.0c01287] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this work, we investigate the adsorption of surface-active compounds at the water-oil interface subjected to an electric field. A fluid system comprising a pendent water drop surrounded by an asphaltene-rich organic phase is exposed to a DC uniform electric field. Two subfractions of asphaltenes having contrasting affinities to the water-oil interface are used as surface-active compounds. The microscopic changes in the drop shape, as a result of asphaltene adsorption, are captured and the drop profiles are analyzed using our in-house code for axisymmetric drop shape analysis (ADSA) under an electric field. The estimates of dynamic interfacial tension under different strengths of the field (E0) and concentrations of the asphaltene subfractions (C) are used to calculate adsorption dynamics and surface excess. The experimental observations and careful analyses of the data suggest that the externally applied electric field significantly stimulates the mass-transfer rate at the liquid-liquid interface. The enhancement in mass transport at the water-oil interface can be attributed to the axisymmetric electrohydrodynamic fluid flows generated on either side of the interface. The boost in mass transport is evident from the growing decay in equilibrium interfacial tension (γeq) and increased surface excess (Γeq) upon increasing strength of the applied electric field. The mass-transfer intensification does not increase monotonously with the electric field strength above an optimum E0, which is in agreement with the previous theoretical studies in the literature. However, these first explicit experimental measurements of adsorption at an interface under an electric field suggest that the optimum E0 is determined by characteristics of the surface-active molecules.
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Affiliation(s)
- Sameer Mhatre
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway.,Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, Calgary, Canada T2N 1N4
| | - Sébastien Simon
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
| | - Johan Sjöblom
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
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Zhang Q, Jian M, Zhao P, Hu C, Qu J, Li X, Hu J, Liu R, Zhang X. A layered aluminum-based metal-organic framework as a superior trap for nitrobenzene capture via an intercalation role. NANOSCALE 2020; 12:6012-6019. [PMID: 32119010 DOI: 10.1039/c9nr09876c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Layered materials with porous layers are of great interest due to their intriguing structural topologies and potential applications as new adsorbents. In this study, a layered aluminum-based metal-organic framework, i.e. Al-TCPP, was successfully synthesized via a facile method for the adsorptive removal of nitrobenzene (NB). The as-synthesized Al-TCPP exhibited a typical layered structure and can be stable in water at pH = 5-7. Batch experimental results showed a superior adsorption performance towards NB with a maximum adsorption capability of 1.85 mg mg-1, and an exceptionally rapid equilibrium within 1 min, yielding an overall adsorptive performance superior to the state-of-the-art NB adsorbents reported so far. The morphology and crystallinity of the Al-TCPP adsorbent basically retain the original status after the capture of NB. Importantly, X-ray diffraction patterns of the samples after the NB adsorption revealed that the possible NB intercalation took place in layered Al-TCPP and expanded the interlayer space during the adsorption, which greatly enriched the adsorption sites and thus achieved the outstanding performance. This work highlights new prospects in designing layered materials for use in environmental remediation.
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Affiliation(s)
- Qi Zhang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
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Mhatre S, Simon S, Sjöblom J. Methodology to calculate interfacial tension under electric field using pendent drop profile analysis. Proc Math Phys Eng Sci 2019; 475:20180852. [PMID: 31236047 DOI: 10.1098/rspa.2018.0852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 04/16/2019] [Indexed: 11/12/2022] Open
Abstract
In this paper, we present a methodology to calculate interfacial tension of a water-oil interface under an electric field. The Young-Laplace equation, conventionally used to estimate surface/interfacial tension in axisymmetric drop shape analysis (ADSA), is modified to include electrostatic effects. The solution needs normal component of the Maxwell stress at the interface which is calculated separately by solving the Laplace equation for electric potential. The optimized fitting between the resulting theoretical profile and the experimentally obtained profile results into Bond number which is used to calculate the apparent value of interfacial tension. The algorithm can process a large number of drop profiles in one go. The methodology can be applied in the ADSA studies for adsorption dynamics where a drop is held for a long time while surface active molecules are allowed to adsorb. The method discussed in this paper will help the future studies in adsorption dynamics at fluid interfaces under electric field and the resulting interfacial property evolution.
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Affiliation(s)
- Sameer Mhatre
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
| | - Sébastien Simon
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
| | - Johan Sjöblom
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
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Liu C, Peljo P, Huang X, Cheng W, Wang L, Deng H. Single Organic Droplet Collision Voltammogram via Electron Transfer Coupled Ion Transfer. Anal Chem 2017; 89:9284-9291. [DOI: 10.1021/acs.analchem.7b02072] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Cheng Liu
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Pekka Peljo
- Laboratoire
d’Electrochimie Physique et Analytique, École Polytechnique Fédérale de Lausanne (EPFL Valais Wallis), Rue de
I’Industrie, 17, 1951 Sion, Switzerland
| | - Xinjian Huang
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Wenxue Cheng
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Lishi Wang
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Haiqiang Deng
- Institute
of Chemistry, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
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Kinetic differentiation of bulk/interfacial oxygen reduction mechanisms at/near liquid/liquid interfaces using scanning electrochemical microscopy. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.08.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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MURAKATA(AITA) TADAHIRO, HONMA HIROSHI, NAKAZATO SAYAKA, KURODA CHIHARU, SATO SHIMIO. Control of Particle Size of Calcium Alginate Gel Bead by Application of Electric Field to Interface between Aqueous and Organic Phases. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2001. [DOI: 10.1252/jcej.34.299] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - HIROSHI HONMA
- Department of Materials Science and Engineering, Yamagata University
| | - SAYAKA NAKAZATO
- Department of Materials Science and Engineering, Yamagata University
| | - CHIHARU KURODA
- Department of Materials Science and Engineering, Yamagata University
| | - SHIMIO SATO
- Department of Materials Science and Engineering, Yamagata University
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Kakiuchi T. Potential-dependent adsorption and partitioning of ionic components at a liquid∣liquid interface. J Electroanal Chem (Lausanne) 2001. [DOI: 10.1016/s0022-0728(00)00310-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Wawrzyńczak WS, Paleska I, Figaszewski Z. Study of supporting electrolyte adsorption in the water/nitrobenzene partition system. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/0022-0728(91)87085-i] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Shchipunov YA, Kolpakov AF. Phospholipids at the oil/water interface: adsorption and interfacial phenomena in an electric field. Adv Colloid Interface Sci 1991; 35:31-138. [PMID: 2043289 DOI: 10.1016/0001-8686(91)80020-k] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Interfacial effects produced in an immiscible liquid system by the action of an external electric field have been considered. The addition of small amounts of neutral phospholipids to the nonaqueous phase has been shown to result in a marked increase in the sensitivity of the interfacial boundary to the voltage applied, which is manifested by: (i) an accelerated decrease of the interfacial tension after the two immiscible liquid phases have been brought into contact; (ii) reduced interfacial tension, by 20-30 mN/m, at the oil/water interface at field strengths of 1-10 kV/m (the interfacial tension drop in the absence of phospholipids does not exceed 5 mN/m); (iii) development of electrohydrodynamic instability at the planar dividing surface between phases; and (iv) dispersion of water into the nonaqueous phase at smaller field strengths by a factor of about 100 as compared to those normally required in the absence of phospholipids. In order to gain a deeper insight into the mechanisms of interfacial phenomena, mainly exemplified by the n-heptane/water system containing phosphatidylcholine, three major issues have been considered: (1) Kinetics of the adsorption of phospholipid at the oil/water interface from the nonaqueous phase, and effects produced by exposure to an external electric field; also, the adsorption under equilibrium conditions, and the structure of the adsorption layer formed. (2) Interactions between neutral phospholipid and inorganic or organic ions at the interfacial boundary under the voltage applied. (3) Conditions for the occurrence of electrohydrodynamic instability at the dividing surface between oil and water and the formation of a water-in-oil emulsion; also aggregation and gelation processes induced in the nonaqueous phospholipid solution bulk by the action of a weak external electric field. Throughout the present paper, an attempt has been made to relate the microscopic behaviour of phospholipids under an external electric field to macroscopically observable properties at the movable interfacial boundaries. The adsorption studies have shown that phosphatidylcholine is prone to self-organization into a liquid-crystalline state at an immiscible liquid interface. The disintegration of the interfacial lipid film thus formed by the action of a weak electric field has been explained as due to an enhanced electrohydrodynamic instability of liquid crystals. This results in the formation of either an emulsion, or a microemulsion in the nonaqueous solution bulk. The formation of a microemulsion is manifested by the appearance of an optically anisotropic gel, stable only under an external applied electric field, in the nonaqueous solution bulk.(ABSTRACT TRUNCATED AT 400 WORDS)
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Affiliation(s)
- Y A Shchipunov
- Institute of Chemistry, Far East Department, Academy of Sciences of the USSR, Vladivostok
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Kakiuchi T, Usui T, Senda M. Electrosorption of Tetraethylene Glycol Monododecyl Ether at the Polarized Nitrobenzene–Water Interface. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1990. [DOI: 10.1246/bcsj.63.2044] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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11
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Influence of an electric field on the interfacial parameters of a water/oil/rock system: Application to oil enhanced recovery. J Colloid Interface Sci 1988. [DOI: 10.1016/0021-9797(88)90241-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Mareček V, Samec Z, Koryta J. Charge transfer across the interface of two immiscible electrolyte solutions. Adv Colloid Interface Sci 1988. [DOI: 10.1016/0001-8686(88)80002-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Blank M. The surface compartment model: a theory of ion transport focused on ionic processes in the electrical double layers at membrane protein surfaces. BIOCHIMICA ET BIOPHYSICA ACTA 1987; 906:277-94. [PMID: 2439121 DOI: 10.1016/0304-4157(87)90014-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This paper is a review of the surface compartment model of ion flow across the channels of natural membranes. The model emphasizes the role of electrical double layers in ion transport and is derived from first principles. When the surface compartment model is applied to the membrane of an excitable cell, (e.g., the squid axon), one can calculate voltage clamp currents that are similar to those observed in the sodium and potassium channels of excitable membranes. The difference in the selectivity of the two types of ion channel appears to be determined by the difference in gating current, and is in line with measurements on the sodium and potassium channels of squid axon. These results indicate that there is a kinetic basis for the selectivity of voltage gated channels and suggest that other types of channels may operate by related mechanisms. The focus of the surface compartment model on charged surfaces has led to a description of the channel opening/closing process in terms of surface free energy, assuming an analogy to the aggregation/disaggregation reactions in oligomeric proteins. The opening of voltage gated oligomeric channels can be formulated in terms of variations in the surface free energy that are triggered by changes in the surface charge density. On this basis, it is possible to introduce gating phenomena into the surface compartment model and to couple the channel processes with charge movements.
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Kakiuchi T, Senda M. Polarizability and Electrocapillary Measurements of the Nitrobenzene–Water Interface. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1983. [DOI: 10.1246/bcsj.56.1322] [Citation(s) in RCA: 65] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Blank M. 535—The surface compartment model (SCM). J Electroanal Chem (Lausanne) 1982. [DOI: 10.1016/0022-0728(82)85234-0] [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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Blank M. The surface compartment model (SCM) role of surface charge in membrane permeability changes. ACTA ACUST UNITED AC 1982. [DOI: 10.1016/0302-4598(82)80037-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Effect of a supporting electrolyte on the interfacial transference numbers during electroadsorption at the nitrobenzene—water interface. J Colloid Interface Sci 1980. [DOI: 10.1016/0021-9797(80)90208-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Koczorowski Z, Kotowski J. Mechanoelectrical energy conversion by the water-nitrobenzene interface. J Colloid Interface Sci 1978. [DOI: 10.1016/0021-9797(78)90081-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Joos P, Bogaert R. Alternating electric current across a nitrobenzene—water interface. I. Adsorption kinetics. J Colloid Interface Sci 1976. [DOI: 10.1016/0021-9797(76)90244-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Watanabe A, Tamai H. The electrocapillary adsorption of surface active agents at oil/water interfaces. Colloid Polym Sci 1971. [DOI: 10.1007/bf01520841] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Cinetique de l’Electroadsorption et de la Polarisation à l’Interface Entre Certaines Solutions Ioniques Non Miscibles. ACTA ACUST UNITED AC 1971. [DOI: 10.1007/978-3-0348-5848-9_28] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Dupeyrat M, Michel J. Study of the mechanism of electroadsorption at the water-nitrobenzene interface. J Colloid Interface Sci 1969. [DOI: 10.1016/0021-9797(69)90210-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Blank M. Some effects due to the flow of current across a water-nitrobenzene interface. J Colloid Interface Sci 1966. [DOI: 10.1016/0021-9797(66)90066-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Blank M. A physical interpretation of the ionic fluxes in excitable membranes. JOURNAL OF COLLOID SCIENCE 1965; 20:933-49. [PMID: 5840303 DOI: 10.1016/0095-8522(65)90066-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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