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Guidolin C, Rio E, Cerbino R, Giavazzi F, Salonen A. Matrix Viscoelasticity Decouples Bubble Growth and Mobility in Coarsening Foams. PHYSICAL REVIEW LETTERS 2024; 133:088202. [PMID: 39241727 DOI: 10.1103/physrevlett.133.088202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 05/03/2024] [Accepted: 07/15/2024] [Indexed: 09/09/2024]
Abstract
Pressure-driven coarsening triggers bubble rearrangements in liquid foams. Our experiments show that changing the continuous phase rheology can alter these internal bubble dynamics without influencing the coarsening kinetics. Through bubble tracking, we find that increasing the matrix yield stress permits bubble growth without stress relaxation via neighbor-switching events, promoting more spatially homogeneous rearrangements and decoupling bubble growth from mobility. This eventually leads to a structural change that directly impacts the foam mechanical and stability properties, essential for applications in various technological and industrial contexts.
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2
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Wang C, Wang J, Li Q, Xu S, Yang J. A review on recent development of foam Ceramics prepared by particle-stabilized foaming technique. Adv Colloid Interface Sci 2024; 330:103198. [PMID: 38820884 DOI: 10.1016/j.cis.2024.103198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 04/24/2024] [Accepted: 05/18/2024] [Indexed: 06/02/2024]
Abstract
Particle-stabilized technique for fabricating foam ceramics was developed in 2006. Porous ceramics with porosity over 95% can be prepared by this newly developed method. This foaming technique was derived from the principle of Pickering foam to a large extent. The high internal phase volume, narrow distribution of pore size as well as the structural stability of the Pickering system enable the final ceramic products to realize their functionality in a variety of applications. However, the interfacial aspect of the foaming system determines the final product in many ways, which brings this novel method details to explore and possibilities to challenge. The current review introduces the particle-stabilized method combining with colloid and surface science since particles are the building block of ceramic materials. The history of this newly invented method was mentioned at first, followed by foam ceramic products prepared by this foaming technique combining with corresponding mechanism. Some representative applications involving ceramic materials made by particle-stabilized method were discussed. At last, we conclude the overall article and put forward some outlooks and challenges about the future direction of this unique foaming technique.
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Affiliation(s)
- Chao Wang
- Department of Chemistry, College of Science, Beijing Forestry University, Beijing 100083, China.
| | - Jinyang Wang
- Department of Chemistry, College of Science, Beijing Forestry University, Beijing 100083, China
| | - Qiang Li
- Department of Chemistry, College of Science, Beijing Forestry University, Beijing 100083, China
| | - Shandong Xu
- Department of Chemistry, College of Science, Beijing Forestry University, Beijing 100083, China
| | - Jinlong Yang
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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3
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Requier A, Guidolin C, Rio E, Galvani N, Cohen-Addad S, Pitois O, Salonen A. Foam coarsening in a yield stress fluid. SOFT MATTER 2024. [PMID: 39028020 DOI: 10.1039/d4sm00296b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Foams coarsen because of pressure differences between bubbles of different sizes. We study the coarsening of quasi-2D foams made from model yield stress fluids: concentrated oil-in-water emulsions. We show that increasing the yield stress of the foamed emulsion continuous phase leads to both slower coarsening and irreversible structural change. The impact of the continuous phase rheology is stronger when the foamed emulsion is wetter or more confined. The bubble growth and organisation both become highly heterogeneous with an excess of small bubbles. We present a model that rationalises the impact of these three parameters by taking into account a resisting pressure required to displace the yield stress fluid around the bubbles.
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Affiliation(s)
- Alice Requier
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France.
| | - Chiara Guidolin
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France.
| | - Emmanuelle Rio
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France.
| | - Nicolò Galvani
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, 4 Place Jussieu, 75005 Paris, France
- Université Gustave Eiffel, ENPC, CNRS, Laboratoire Navier, 5 Bd Descartes, Champs-sur-Marne, F-77454 Marne-la-Vallée Cedex 2, France
| | - Sylvie Cohen-Addad
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, 4 Place Jussieu, 75005 Paris, France
- Université Gustave Eiffel, 5 Bd Descartes, Champs-sur-Marne, F-77454 Marne-la-Vallée Cedex 2, France
| | - Olivier Pitois
- Université Gustave Eiffel, ENPC, CNRS, Laboratoire Navier, 5 Bd Descartes, Champs-sur-Marne, F-77454 Marne-la-Vallée Cedex 2, France
| | - Anniina Salonen
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France.
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4
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Duan F, Zhu Y, Liu Y, Wang A. Fabrication of porous adsorbents from eco-friendly aqueous foam for high-efficient removal of cationic dyes and sustainable utilization assessment. J Environ Sci (China) 2024; 137:395-406. [PMID: 37980025 DOI: 10.1016/j.jes.2022.11.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/15/2022] [Accepted: 11/29/2022] [Indexed: 11/20/2023]
Abstract
Porous materials applied in environmental remediation have received researchers' extensive attention recently, but the related green and convenient preparation method is rarely reported. Here, we recommended a green and convenient strategy for the fabrication of porous material via aqueous foam templates, which was synergistically stabilized by Codonopsis pilosula (CP) and clay minerals of attapulgite (APT). The characterization results revealed that the APT was modified by organic molecules leached from CP and anchored at the air-water interface, which improved the foam stability significantly. The novel porous material of polyacrylamide/Codonopsis pilosula/attapulgite (PAM/CP/APT) templated from the aqueous foam via a polymerization reaction had excellent adsorption capacity for the cationic dyes methyl violet (MV) and methylene blue (MB), and the adsorption capacity can reach 755.85 mg/g and 557.64 mg/g, respectively. More importantly, the adsorption capacity of spent adsorbent material was still over 200 mg/g after being recycled five times through a simple carbonization process, and then it was added to the plant pot, the total biomass was increased by about 86.42%. This study provided a green and sustainable pathway for the preparation, application and subsequent processing of porous materials.
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Affiliation(s)
- Fangzhi Duan
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongfeng Zhu
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yan Liu
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Aiqin Wang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
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5
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Sejwal G, Singh SK. Perspective: The unexplored dimensions behind the foam formation in River Yamuna, India. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:90458-90470. [PMID: 37479928 DOI: 10.1007/s11356-023-28857-3] [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: 03/01/2023] [Accepted: 07/14/2023] [Indexed: 07/23/2023]
Abstract
For nearly two years, a persistent foam cover has been observed during the post-monsoon season in the Yamuna River beneath the barrage near Okhla in Delhi, India. This affair has been a matter of public concern now, after the gigantic appearance of foam in November 2021, as the visibility of foam has awakened people's environmental 'conscience' over the 'concealed' chemical pollution. The mechanisms of agents responsible for foaming in rivers, particularly surfactants and phosphates, have received wide attention in the dynamic community of river pollution. Many studies in the past, around the globe, have evidently provided different rationales behind the dense foam formation in rivers, yet the Concerned Govt. Authorities have highlighted the cause of foam formation in the river Yamuna is associated with the presence of detergents and phosphates as foaming agents. Despite this, an aperture with copious unaccounted factors or underlying agents still exists to rationalize the foam formation and persistence. In this article, we outline these unaccounted factors which might be responsible for the foam formation and stabilization and give indications for future research directives towards the emergence of studies regarding the dense foam formation in river Yamuna.
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Affiliation(s)
- Garima Sejwal
- Department of Environmental Engineering, Delhi Technological University, Delhi, 110042, India.
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6
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Zhou W, Wang C, Meng R, Chen Z, Lu H, Chi J. Study on thermal insulation cement and its thermal insulation characteristics for geothermal wells. Sci Rep 2023; 13:4157. [PMID: 36914700 PMCID: PMC10011513 DOI: 10.1038/s41598-023-30614-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 02/27/2023] [Indexed: 03/16/2023] Open
Abstract
Reducing the heat loss in wellbore is the key for efficient development of geothermal resource. It is a reliable solution to establish a long-term stable wellbore with good thermal insulation through cementing. In this paper, the cement-based composite thermal insulation material was prepared by using cement as the cementing material, hollow glass beads, foaming agent and stabilizer as main raw materials, and other conventional admixtures. Foams and hollow glass beads can introduce gas with low thermal conductivity into cement, so as to improve the thermal insulation of composite material. Foams are produced by chemical forming process, using foaming agent, which is prepared according electrochemistry and thermodynamics, and the foam stabilizer helps foam distribute in cement slurry stably and uniformly. 10-13% hollow glass beads can significantly reduce the thermal conductivity of hardened cement, without significant adverse effects on the rheology and strength of the material. The thermal conductivity of the composite thermal insulation material can be as low as 0.2998 W·(m·K)-1, which is 62% lower than that of conventional cement, while the compressive strength is 6.10 MPa, meeting the engineering requirement. A thermal-conductivity prediction method is proposed correspondingly based on Maxwell model, and the prediction error of the newly established model is within 2%. This research can provide technical support for efficient development of geothermal resources.
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Affiliation(s)
- Wei Zhou
- Key Laboratory of Unconventional Oil and Gas Development, China University of Petroleum (East China), Qingdao, 266580, China
| | - Chengwen Wang
- Key Laboratory of Unconventional Oil and Gas Development, China University of Petroleum (East China), Qingdao, 266580, China. .,College of Petroleum Engineering, China University of Petroleum (East China), Qingdao, 266580, China.
| | - Renzhou Meng
- CNPC Engineering Technology R&D Company Limited, Beijing, 102206, China
| | - Zehua Chen
- Key Laboratory of Unconventional Oil and Gas Development, China University of Petroleum (East China), Qingdao, 266580, China
| | - Haoxin Lu
- Key Laboratory of Unconventional Oil and Gas Development, China University of Petroleum (East China), Qingdao, 266580, China
| | - Jialun Chi
- Key Laboratory of Unconventional Oil and Gas Development, China University of Petroleum (East China), Qingdao, 266580, China
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7
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Viscoelastic coarsening of quasi-2D foam. Nat Commun 2023; 14:1125. [PMID: 36854671 PMCID: PMC9975196 DOI: 10.1038/s41467-023-36763-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 02/13/2023] [Indexed: 03/02/2023] Open
Abstract
Foams are unstable jammed materials. They evolve over timescales comparable to their "time of use", which makes the study of their destabilisation mechanisms crucial for applications. In practice, many foams are made from viscoelastic fluids, which are observed to prolong their lifetimes. Despite their importance, we lack understanding of the coarsening mechanism in such systems. We probe the effect of continuous phase viscoelasticity on foam coarsening with foamed emulsions. We show that bubble size evolution is strongly slowed down and foam structure hugely impacted. The main mechanisms responsible are the absence of continuous phase redistribution and a non-trivial link between foam structure and mechanical properties. These combine to give spatially heterogeneous coarsening. Beyond their importance in the design of foamy materials, the results give a macroscopic vision of phase separation in a viscoelastic medium.
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8
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Kühnhammer M, Gräff K, Loran E, Soltwedel O, Löhmann O, Frielinghaus H, von Klitzing R. Structure formation of PNIPAM microgels in foams and foam films. SOFT MATTER 2022; 18:9249-9262. [PMID: 36440620 DOI: 10.1039/d2sm01021f] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Responsive aqueous foams are very interesting from a fundamental point of view and for various applications like foam flooding or foam flotation. In this study thermoresponsive microgels (MGs) made from poly(N-isopropyl-acrylamide) (PNIPAM) with varying cross-linker content, are used as foam stabilisers. The foams obtained are thermoresponsive and can be destabilised by increasing the temperature. The structuring of MGs inside the foam films is investigated with small-angle neutron scattering and in a thin film pressure balance. The foam films are inhomogeneous and form a network-like structure, in which thin and MG depleted zones with a thickness of ca. 30 nm are interspersed in a continuous network of thick MG containing areas with a thickness of several 100 nm. The thickness of this continuous network is related to the elastic modulus of the individual MGs, which was determined by atomic force microscopy indentation experiments. Both, the elastic moduli and foam film thicknesses, indicate a correlation to the network elasticity of the MGs predicted by the affine network model.
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Affiliation(s)
- Matthias Kühnhammer
- Institute for Condensed Matter Physics, Technische Universität Darmstadt, Hochschulstraße 8, 64289 Darmstadt, Germany.
| | - Kevin Gräff
- Institute for Condensed Matter Physics, Technische Universität Darmstadt, Hochschulstraße 8, 64289 Darmstadt, Germany.
| | - Edwin Loran
- Institute for Condensed Matter Physics, Technische Universität Darmstadt, Hochschulstraße 8, 64289 Darmstadt, Germany.
| | - Olaf Soltwedel
- Institute for Condensed Matter Physics, Technische Universität Darmstadt, Hochschulstraße 8, 64289 Darmstadt, Germany.
| | - Oliver Löhmann
- Institute for Condensed Matter Physics, Technische Universität Darmstadt, Hochschulstraße 8, 64289 Darmstadt, Germany.
| | - Henrich Frielinghaus
- Jülich Center for Neutron Science at the Heinz Maier Leibnitz Zentrum, Forschungszentrum Jülich GmbH, Lichtenbergstrasse 1, 85747 Garching, Germany
| | - Regine von Klitzing
- Institute for Condensed Matter Physics, Technische Universität Darmstadt, Hochschulstraße 8, 64289 Darmstadt, Germany.
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9
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Hristova M, Lesov I, Mihaylov L, Denkov N, Tcholakova S. Role of particles size on the cohesive strength of non-sintered (green) ceramics. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Gao ZZ, Qi N, Chen WJ, Zhao H. Construction of hydroxyethyl cellulose/silica/graphitic carbon nitride solid foam for adsorption and photocatalytic degradation of dyes. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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11
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Motion of small bubbles and drops in viscoelastic fluids. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2021.101529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Petkova B, Tcholakova S, Denkov N. Foamability of surfactant solutions: Interplay between adsorption and hydrodynamic conditions. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Djemaa IB, Auguste S, Drenckhan-Andreatta W, Andrieux S. Hydrogel foams from liquid foam templates: Properties and optimisation. Adv Colloid Interface Sci 2021; 294:102478. [PMID: 34280600 DOI: 10.1016/j.cis.2021.102478] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/24/2021] [Accepted: 06/27/2021] [Indexed: 12/20/2022]
Abstract
Hydrogel foams are an important sub-class of macroporous hydrogels. They are commonly obtained by integrating closely-packed gas bubbles of 10-1000 μm into a continuous hydrogel network, leading to gas volume fractions of more than 70% in the wet state and close to 100% in the dried state. The resulting wet or dried three-dimensional architectures provide hydrogel foams with a wide range of useful properties, including very low densities, excellent absorption properties, a large surface-to-volume ratio or tuneable mechanical properties. At the same time, the hydrogel may provide biodegradability, bioabsorption, antifungal or antibacterial activity, or controlled drug delivery. The combination of these properties are increasingly exploited for a wide range of applications, including the biomedical, cosmetic or food sector. The successful formulation of a hydrogel foam from an initially liquid foam template raises many challenging scientific and technical questions at the interface of hydrogel and foam research. Goal of this review is to provide an overview of the key notions which need to be mastered and of the state of the art of this rapidly evolving field at the interface between chemistry and physics.
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Affiliation(s)
- I Ben Djemaa
- Institut Charles Sadron, University of Strasbourg, CNRS UPR22, 23 rue du Loess, 67037 Strasbourg, France; Urgo Research Innovation and Development, 42 rue de Longvic, 21304 Chenôve Cedex, France
| | - S Auguste
- Urgo Research Innovation and Development, 42 rue de Longvic, 21304 Chenôve Cedex, France
| | - W Drenckhan-Andreatta
- Institut Charles Sadron, University of Strasbourg, CNRS UPR22, 23 rue du Loess, 67037 Strasbourg, France
| | - S Andrieux
- Institut Charles Sadron, University of Strasbourg, CNRS UPR22, 23 rue du Loess, 67037 Strasbourg, France.
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14
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Bournival G, Yang X, Ata S. The interaction of a bubble with a particle-laden interface in frother solutions. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Development of soy milk in the form of wet foam in the presences of whey protein concentrate and polysaccharides at different whipping temperatures: Study of physical, rheological and microstructural properties. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110444] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Yoon IH, Yoon SB, Sihn Y, Choi MS, Jung CH, Choi WK. Stabilizing decontamination foam using surface-modified silica nanoparticles containing chemical reagent: foam stability, structures, and dispersion properties. RSC Adv 2021; 11:1841-1849. [PMID: 35424110 PMCID: PMC8693613 DOI: 10.1039/d0ra07644a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 11/30/2020] [Indexed: 12/20/2022] Open
Abstract
The stabilization of decontamination foams containing a chemical reagent is a crucial requirement for their use in the decontamination of nuclear power plants. We have investigated the effects on decontamination foam stability of adding silica nanoparticles (NPs) modified with various functional groups, namely propyl (–CH3), amine (–NH2), and thiol (–SH) groups. The surface properties of these silica NPs were characterized with ATR-FTIR, solid NMR, and TGA analyses. We also established that the agglomeration in such foams of the amine-modified silica NPs is weaker than that of the other modified silica NPs due to their thorough dispersion in the liquid film. Further, the foam containing amine-modified silica NPs was found to be stable for 60 min at a pH of 2, i.e. under decontamination conditions. The bubble structure analysis showed that this decontamination foam has a bubble count that is approximately 5–8 times higher than the foams containing NPs modified with the other functional groups, which indicates that the decontamination foam with amine-modified silica NPs has the best foam structure of the three investigated foams. The well-dispersed and smaller amine-modified silica NPs enhance the foam stability by providing a barrier between the gas bubbles and delaying their coalescence. In contrast, the thiol- and propyl-modified silica NPs form aggregates with large diameters that reduce the maximum capillary pressure of coalescence and hence decrease the foam stability. The stabilization of decontamination foams containing a chemical reagent is a crucial requirement for their use in the decontamination of nuclear power plants.![]()
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Affiliation(s)
- In-Ho Yoon
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute 111, Daedeok-daero 989 Beon-gil, Yuseong-gu Daejeon 305-353 Republic of Korea +82-42-868-8281
| | - Suk Bon Yoon
- Decommissioning Research Institute Preparation Unit, Korea Hydro & Nuclear Power Co., Ltd. (KHNP) Gyeongju 38120 Republic of Korea
| | - Youngho Sihn
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute 111, Daedeok-daero 989 Beon-gil, Yuseong-gu Daejeon 305-353 Republic of Korea +82-42-868-8281
| | - Man-Soo Choi
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute 111, Daedeok-daero 989 Beon-gil, Yuseong-gu Daejeon 305-353 Republic of Korea +82-42-868-8281
| | - Chong-Hun Jung
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute 111, Daedeok-daero 989 Beon-gil, Yuseong-gu Daejeon 305-353 Republic of Korea +82-42-868-8281
| | - Wang-Kyu Choi
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute 111, Daedeok-daero 989 Beon-gil, Yuseong-gu Daejeon 305-353 Republic of Korea +82-42-868-8281
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17
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Denkov N, Tcholakova S, Politova-Brinkova N. Physicochemical control of foam properties. Curr Opin Colloid Interface Sci 2020. [DOI: 10.1016/j.cocis.2020.08.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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18
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Basheva ES, Kralchevsky PA, Danov KD, Stanimirova RD, Shaw N, Petkov JT. Vortex in liquid films from concentrated surfactant solutions containing micelles and colloidal particles. J Colloid Interface Sci 2020; 576:345-355. [DOI: 10.1016/j.jcis.2020.05.048] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/13/2020] [Accepted: 05/14/2020] [Indexed: 11/30/2022]
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19
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Zhao H, Li Y. Eco-friendly floatable foam hydrogel for the adsorption of heavy metal ions and use of the generated waste for the catalytic reduction of organic dyes. SOFT MATTER 2020; 16:6914-6923. [PMID: 32647853 DOI: 10.1039/d0sm00756k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Benefiting from their three-dimensional network structure and various functional groups, hydrogels have emerged as efficient adsorbents for the removal of heavy metal ions from wastewater. However, the obvious drawbacks of hydrogels such as generation of toxic secondary waste after adsorption and difficulty in their separation and collection limit their practical application in wastewater treatment. Herein, we introduced a facile strategy of combining mechanical frothing and in situ radical polymerization to prepare a floatable porous foam hydrogel, which not only efficiently removed Cu2+ from water, but also could be easily collected. After adsorption, to avoid the generation of secondary toxic waste, a sustainable strategy of turning the waste into useful materials was introduced. The waste of the Cu2+_ adsorbed hydrogel was processed using NaBH4 solution to obtain a Cu nanoparticle (Cu NP)-loaded composite hydrogel, which was further employed as a catalyst for the catalytic reduction of organic dyes. Thus, this work established a convenient and sustainable strategy for the preparation of an eco-friendly floatable foam hydrogel for the efficient removal of heavy metal ions such as Cu2+ from water and turning the generated waste into useful materials, which is a concept envisaged to be applicable to other heavy metal ion-adsorbed hydrogel systems and will efficiently avoid unwanted secondary pollution.
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Affiliation(s)
- Hui Zhao
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 South Road of ShanDa, Jinan, Shandong 250100, P. R. China.
| | - Ying Li
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 South Road of ShanDa, Jinan, Shandong 250100, P. R. China.
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20
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21
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Llamas S, Ponce Torres A, Liggieri L, Santini E, Ravera F. Surface properties of binary TiO2 - SiO2 nanoparticle dispersions relevant for foams stabilization. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.05.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Karthick A, Roy B, Chattopadhyay P. Comparison of zero-valent iron and iron oxide nanoparticle stabilized alkyl polyglucoside phosphate foams for remediation of diesel-contaminated soils. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 240:93-107. [PMID: 30928799 DOI: 10.1016/j.jenvman.2019.03.088] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 03/01/2019] [Accepted: 03/18/2019] [Indexed: 05/25/2023]
Abstract
Stable surfactant foam might play a vital role in the effective remediation of diesel oil contaminated soil-a major environmental hazard. This paper, first of its kind, is reporting the remediation of diesel-contaminated desert soil, coastal soil and clay soil by aqueous alkylpolyglucoside phosphate (APG-Ph) surfactant foams stabilized by Fe0 and Fe3O4 nanoparticles. Zero-valent iron (Fe0, ∼28 nm) and iron oxide (Fe3O4, ∼20 nm) nanoparticles are synthesized by liquid-phase reduction and precipitation methods, respectively. The effect of these nanoparticles on foamability, foam stability, surface tension and remediation of diesel-contaminated soils are examined at various concentrations (volume %) of alkylpolyglucoside phosphate (APG-Ph) surfactant and nanoparticles (mg/l). The maximum values of foamability and foam stability recorded for 0.1 vol % APG-Ph foam stabilized by 3.5 mg/l Fe0 are 108.3 and 110.4 mL, respectively. At the same conditions, the Fe3O4 results in 99.4 and 87.5 mL, respectively, depicting the better performance of Fe0. Reduction in surface tension of 0.1 vol % APG-Ph solution (50.75 mN/m) with the addition of 3.5 mg/l Fe0 (9.51 mN/m) and Fe3O4 (19.45 mN/m) nanoparticle is observed. Both the nanoparticles enhance remediation. The foam formed with 0.1 vol % APG-Ph and stabilized by 3.5 mg/l Fe0 shows the maximum diesel removal efficiency of 95.3, 94.6, and 57.5% for coastal soil, desert soil and clay soil, respectively. On the other hand, Fe3O4 (3.5 mg/l) stabilized APG-Ph foam of the same concentration shows merely 76.0, 79.6 and 51.6% diesel removal efficiency for coastal soil, desert soil, and clay soil, respectively. The rate of diesel removal by zero-valent iron and iron oxide nanoparticle stabilized foams are found to be well described by the first order kinetic model. Higher foamability, foam stability, and reducing capacity accompanying lower surface tension, compared to those of the Fe3O4 nanoparticle stabilized foam, could explain higher diesel removal efficiency of the Fe0 nanoparticle stabilized foam.
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Affiliation(s)
- Arun Karthick
- Department of Chemical Engineering, Birla Institute of Technology and Science (BITS), Pilani Campus, VidyaVihar, Pilani, 333031, Rajasthan, India
| | - Banasri Roy
- Department of Chemical Engineering, Birla Institute of Technology and Science (BITS), Pilani Campus, VidyaVihar, Pilani, 333031, Rajasthan, India
| | - Pradipta Chattopadhyay
- Department of Chemical Engineering, Birla Institute of Technology and Science (BITS), Pilani Campus, VidyaVihar, Pilani, 333031, Rajasthan, India.
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The hydrophobic modification of kappa carrageenan microgel particles for the stabilisation of foams. J Colloid Interface Sci 2019; 538:165-173. [DOI: 10.1016/j.jcis.2018.11.091] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/22/2018] [Accepted: 11/23/2018] [Indexed: 11/21/2022]
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24
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Maestro A. Tailoring the interfacial assembly of colloidal particles by engineering the mechanical properties of the interface. Curr Opin Colloid Interface Sci 2019. [DOI: 10.1016/j.cocis.2019.02.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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25
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Yoon IH, Yoon SB, Jung CH, Kim C, Kim S, Moon JK, Choi WK. A highly efficient decontamination foam stabilized by well-dispersed mesoporous silica nanoparticles. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.10.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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26
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Hristova M, Lesov I, Tcholakova S, Goletto V, Denkov N. From Pickering foams to porous carbonate materials: crack-free structuring in drying ceramics. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.05.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Deleurence R, Saison T, Lequeux F, Monteux C. Foaming of Transient Polymer Hydrogels. ACS OMEGA 2018; 3:1864-1870. [PMID: 31458499 PMCID: PMC6641377 DOI: 10.1021/acsomega.7b01301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 01/30/2018] [Indexed: 06/10/2023]
Abstract
Foams made with polymer hydrogels can be used in a variety of applications, such as scaffolds for biomedical applications or decontamination processes. However, from a practical point of view, it is difficult to introduce bubbles into viscous or viscoelastic fluids and to produce large volumes of hydrogel foams. In the present article, we investigate the foaming process of poly(vinyl alcohol) (PVA)/borax transient hydrogels, where PVA chains reversibly bind to borax molecules. In a previous article, we showed that foams obtained with PVA/borax mixtures are highly stable because of both high interfacial and bulk viscosities and can be used to quickly absorb liquids, which make them suitable for detergency or decontamination processes. To produce these foams, we use a two-step foaming process which consists in first shearing a PVA solution to obtain a PVA foam and second adding borax to the PVA foam under continuous shearing. The obtained PVA/borax foams are stable for weeks. In this study, we observe a shear-induced collapse of the foams for formulations containing a low borax/PVA ratio, whereas they remain stable under shear for high PVA/borax ratios. Using scaling arguments, we find that the shear-induced collapse of the foams and bubbles is obtained below a critical ratio, N E/N B = 15, of the number of entanglements per chain, N E, and the number of borax per chain, N B. Rheology measurements show that the samples present a shear-thickening behavior that increases with the borax concentration. We suggest that during the foaming process when the shearing rate is of the order of 100 s-1, the viscosity of these samples diverges, leading to a viscous to fragile transition. To mimic the fast stretching of the PVA/borax thin films during the foaming process, we study the stretching of individual PVA/borax catenoid-shaped thin films at high stretching rates. We observe that the films containing low PVA/borax ratios do not minimize their surface area unlike what is theoretically expected for standard surfactant films. Moreover, the films tend to be unstable and fracture because the PVA/borax network does not have time to rearrange and relax stresses for high stretching rates.
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Affiliation(s)
- Rémi Deleurence
- Laboratoire
Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University, 10 rue Vauquelin, 75005 Paris, France
- Laboratoire
Sciences et Ingénierie de la Matière Molle, Université Pierre et Marie Curie, Sorbonne-Universités, 10 rue Vauquelin, 75005 Paris, France
| | - Tamar Saison
- Saint-Gobain
Recherche, 39 Quai Lucien
Lefranc, 93300 Aubervilliers, France
| | - François Lequeux
- Laboratoire
Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University, 10 rue Vauquelin, 75005 Paris, France
- Laboratoire
Sciences et Ingénierie de la Matière Molle, Université Pierre et Marie Curie, Sorbonne-Universités, 10 rue Vauquelin, 75005 Paris, France
| | - Cécile Monteux
- Laboratoire
Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University, 10 rue Vauquelin, 75005 Paris, France
- Laboratoire
Sciences et Ingénierie de la Matière Molle, Université Pierre et Marie Curie, Sorbonne-Universités, 10 rue Vauquelin, 75005 Paris, France
- Global
Station for Soft Matter, Global Institution for Collaborative Research
and Education, Hokkaido University, Sapporo, Hokkaido 060-0808, Japan
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Tan H, Tu S, Zhao Y, Wang H, Du Q. A simple and environment-friendly approach for synthesizing macroporous polymers from aqueous foams. J Colloid Interface Sci 2018; 509:209-218. [DOI: 10.1016/j.jcis.2017.09.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 08/31/2017] [Accepted: 09/02/2017] [Indexed: 01/08/2023]
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29
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Cerbelaud M, Videcoq A, Alison L, Tervoort E, Studart AR. Early Dynamics and Stabilization Mechanisms of Oil-in-Water Emulsions Containing Colloidal Particles Modified with Short Amphiphiles: A Numerical Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:14347-14357. [PMID: 29172534 DOI: 10.1021/acs.langmuir.7b03472] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Emulsions stabilized by mixtures of particles and amphiphilic molecules are relevant for a wide range of applications, but their dynamics and stabilization mechanisms on the colloidal level are poorly understood. Given the challenges to experimentally probe the early dynamics and mechanisms of droplet stabilization, Brownian dynamics simulations are developed here to study the behavior of oil-in-water emulsions stabilized by colloidal particles modified with short amphiphiles. Simulation parameters are based on an experimental system that consists of emulsions obtained with octane as the oil phase and a suspension of alumina colloidal particles modified with short carboxylic acids as the continuous aqueous medium. The numerical results show that attractive forces between the colloidal particles favor the formation of closely packed clusters on the droplet surface or of a percolating network of particles throughout the continuous phase, depending on the amphiphile concentration. Simulations also reveal the importance of a strong adsorption of particles at the liquid interface to prevent their depletion from the droplet surface when another droplet approaches. Strongly adsorbed particles remain immobile on the droplet surface, generating an effective steric barrier against droplet coalescence. These findings provide new insights into the early dynamics and mechanisms of stabilization of emulsions using particles and amphiphilic molecules.
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Affiliation(s)
| | - Arnaud Videcoq
- University Limoges, CNRS, SPCTS, UMR 7315 , F-87000 Limoges, France
| | - Lauriane Alison
- Complex Materials, Department of Materials, ETH Zurich , 8093 Zurich, Switzerland
| | - Elena Tervoort
- Complex Materials, Department of Materials, ETH Zurich , 8093 Zurich, Switzerland
| | - André R Studart
- Complex Materials, Department of Materials, ETH Zurich , 8093 Zurich, Switzerland
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Chattopadhyay P, Karthick RA. Characterization and Application of Surfactant Foams Produced from Ethanol-Sodium Lauryl Sulfate-Silica Nanoparticle Mixture for Soil Remediation. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/masy.201600182] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pradipta Chattopadhyay
- Department of Chemical Engineering BITS Pilani; Pilani Campus Pilani-333031 Rajasthan India
| | - R. Arun Karthick
- Department of Chemical Engineering BITS Pilani; Pilani Campus Pilani-333031 Rajasthan India
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32
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Role of surface properties for the kinetics of bubble Ostwald ripening in saponin-stabilized foams. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.04.055] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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33
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34
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Bey H, Wintzenrieth F, Ronsin O, Höhler R, Cohen-Addad S. Stabilization of foams by the combined effects of an insoluble gas species and gelation. SOFT MATTER 2017; 13:6816-6830. [PMID: 28825087 DOI: 10.1039/c6sm02191c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Liquid foams are unstable due to aging processes such as drainage, coalescence or coarsening. Since these processes modify the foam structure, they can be a severe limitation to the elaboration of solid foams with controlled structures inherited from their liquid precursors. Such applications call for a thorough understanding of foam stabilization. Here we study how coarsening can be inhibited by the combined effects of a mixture of gas containing a species insoluble in the foaming solution and of gelation of the foaming solution. We present experiments with model ordered liquid foams and hydrogel foams. They allow us to identify the underlying physical mechanisms of stabilization and their governing parameters, namely the bubble radius Ro, the foam shear modulus G and the number ηo of insoluble trapped gas molecules per bubble. We propose a scaling model that predicts the stability diagram of an ideal monodisperse perfectly ordered foam as a function of Ro, G and ηo, in qualitative agreement with our data. We show that the domain of stable foams is governed by a characteristic elasto-capillary radius set by the ratio of surface tension to storage modulus.
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Affiliation(s)
- Houda Bey
- Sorbonne Universités, UPMC Univ Paris 06, CNRS-UMR 7588, Institut des NanoSciences de paris, 4 place Jussieu, 75005 Paris, France.
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35
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Lesov I, Tcholakova S, Kovadjieva M, Saison T, Lamblet M, Denkov N. Role of Pickering stabilization and bulk gelation for the preparation and properties of solid silica foams. J Colloid Interface Sci 2017; 504:48-57. [DOI: 10.1016/j.jcis.2017.05.036] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 05/11/2017] [Accepted: 05/11/2017] [Indexed: 11/29/2022]
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36
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Zhang L, Tian L, Du H, Rouzière S, Wang N, Salonen A. Foams Stabilized by Surfactant Precipitates: Criteria for Ultrastability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:7305-7311. [PMID: 28669193 DOI: 10.1021/acs.langmuir.7b01962] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Foams are ultrastable when all the aging processes arrest. We make such foams by precipitating sodium dodecyl sulfate with potassium chloride during the foaming process. The precipitate crystals adsorb onto the bubble surfaces to arrest coarsening and stop drainage by blocking in the interstices around the bubbles. However, if the concentration of SDS is too high, the foams are no longer ultrastable. The transition is sudden and corresponds to the point at which significant dodecyl sulfate remains in solution. The presence of the noncrystallized surfactant allows the foam to coarsen leading to the eventual disappearance of the foams, even if the crystals in the continuous phase can still block drainage. The transition occurs as the concentration of nonsolubilized KCl becomes higher than the concentration of SDS, giving us a linear stability boundary. The system offers an interesting alternative to other types of particles because the surfactant crystals break and reform as the temperature is cycled, which makes for reusable solutions and stimulable foams.
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Affiliation(s)
- Li Zhang
- School of Materials Science and Engineering, Xi'an University of Science and Technology , Xi'an 710054, China
| | - Lili Tian
- School of Science, Northwestern Polytechnical University , Xi'an 710072, China
| | - Huiling Du
- School of Materials Science and Engineering, Xi'an University of Science and Technology , Xi'an 710054, China
| | - Stéphan Rouzière
- Laboratoire de Physique des Solides, CNRS, Université Paris Sud, Université Paris Saclay , 91405 Orsay, France
| | - Nan Wang
- School of Science, Northwestern Polytechnical University , Xi'an 710072, China
| | - Anniina Salonen
- Laboratoire de Physique des Solides, CNRS, Université Paris Sud, Université Paris Saclay , 91405 Orsay, France
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37
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Gorlier F, Khidas Y, Pitois O. Elasticity of particle-loaded liquid foams. SOFT MATTER 2017; 13:4533-4540. [PMID: 28590469 DOI: 10.1039/c7sm00679a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Mixing solid particles with liquid foam is a common process used in industry for manufacturing aerated materials. Desire for improvement of involved industrial processes and optimization of resulting foamed materials stimulates fundamental research on those complex mixtures of grains, bubbles and liquid. In this paper, we generate well-controlled particle-loaded liquid foams and we determine their elastic behavior as a function of particle size (6-3000 μm) and particle volume fraction (0-6%). We focus on both the elastic modulus exhibited by the material at small strain and the strain marking the end of the linear elastic regime. Results reveal the existence of a critical particle-to-bubble size ratio triggering a sharp transition between two well-defined regimes. For small size ratios, the behavior is governed by the mechanical properties of the solid grains, which have been proved to pack in the shape of a foam-embedded granular skeleton. In contrast, bubbles elasticity prevails in the second regime, where isolated large particles contribute only weakly to the rheological behavior of the foamed material. The modeling of elasticity for each regime allows for this transition to be normalized and compared with previously reported particle size-induced effects for foam drainage (Haffner et al. J. Colloid Interface Sci., 2015, 458, 200-208) and solid foam mechanics (Khidas et al., Compos. Sci. Technol., 2015, 119, 62-67). This highlights that rheology and the other properties of particle-loaded foams are subjected to the same size-induced morphological transition.
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Affiliation(s)
- F Gorlier
- Université Paris Est, Laboratoire Navier, UMR 8205 CNRS -École des Ponts ParisTech - IFSTTAR cité Descartes, 2 allée Kepler, 77420 Champs-sur-Marne, France.
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38
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Marinova KG, Naydenova KT, Basheva ES, Bauer F, Tropsch J, Franke J. New surfactant mixtures for fine foams with slowed drainage. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.03.050] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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39
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Briceño-Ahumada Z, Langevin D. On the influence of surfactant on the coarsening of aqueous foams. Adv Colloid Interface Sci 2017; 244:124-131. [PMID: 26687804 DOI: 10.1016/j.cis.2015.11.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 11/20/2015] [Accepted: 11/22/2015] [Indexed: 10/22/2022]
Abstract
We review the coarsening process of foams made with various surfactants and gases, focusing on physico-chemical aspects. Several parameters strongly affect coarsening: foam liquid fraction and foam film permeability, this permeability depending on the surfactant used. Both parameters may evolve with time: the liquid fraction, due to gravity drainage, and the film permeability, due to the decrease of capillary pressure during bubble growth, and to the subsequent increase in film thickness. Bubble coalescence may enhance the bubble's growth rate, in which case the bubble polydispersity increases. The differences found between the experiments reported in the literature and between experiments and theories are discussed.
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40
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Gorlier F, Khidas Y, Fall A, Pitois O. Optimal strengthening of particle-loaded liquid foams. Phys Rev E 2017; 95:042604. [PMID: 28505841 DOI: 10.1103/physreve.95.042604] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Indexed: 11/07/2022]
Abstract
Foams made of complex fluids such as particle suspensions have a great potential for the development of advanced aerated materials. In this paper, we study the rheological behavior of liquid foams loaded with granular suspensions. We focus on the effect of small particles, i.e., particle-to-bubble size ratio smaller than 0.1, and we measure the complex modulus as a function of particle size and particle volume fraction. With respect to previous work, the results highlight a new elastic regime characterized by unequaled modulus values as well as independence of size ratio. A careful investigation of the material microstructure reveals that particles organize through the network between the gas bubbles and form a granular skeleton structure with tightly packed particles. The latter is proven to be responsible for the reported new elastic regime. Rheological probing performed by strain sweep reveals a two-step yielding of the material: The first one occurs at small strain and is clearly attributed to yielding of the granular skeleton; the second one corresponds to the yielding of the bubble assembly, as observed for particle-free foams. Moreover, the elastic modulus measured at small strain is quantitatively described by models for solid foams in assuming that the granular skeleton possesses a bulk elastic modulus of order 100 kPa. Additional rheology experiments performed on the bulk granular material indicate that this surprisingly high value can be understood as soon as the magnitude of the confinement pressure exerted by foam bubbles on packed grains is considered.
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Affiliation(s)
- F Gorlier
- Université Paris Est, Laboratoire Navier, UMR 8205 CNRS, École des Ponts ParisTech, IFSTTAR cité Descartes, 77420 Champs-sur-Marne, France
| | - Y Khidas
- Université Paris Est, Laboratoire Navier, UMR 8205 CNRS, École des Ponts ParisTech, IFSTTAR 5 bd Descartes, 77454 Marne-la-Vallée Cedex 2, France
| | - A Fall
- Université Paris Est, Laboratoire Navier, UMR 8205 CNRS, École des Ponts ParisTech, IFSTTAR cité Descartes, 77420 Champs-sur-Marne, France
| | - O Pitois
- Université Paris Est, Laboratoire Navier, UMR 8205 CNRS, École des Ponts ParisTech, IFSTTAR cité Descartes, 77420 Champs-sur-Marne, France
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41
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Production and characterization of stable foams with fine bubbles from solutions of hydrophobin HFBII and its mixtures with other proteins. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2016.06.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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42
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Huo WL, Qi F, Zhang XY, Ma N, Gan K, Qu YN, Xu J, Yang JL. Ultralight alumina ceramic foams with single-grain wall using sodium dodecyl sulfate as long-chain surfactant. Ann Ital Chir 2016. [DOI: 10.1016/j.jeurceramsoc.2016.06.030] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Briceño-Ahumada Z, Soltero A, Maldonado A, Perez J, Langevin D, Impéror-Clerc M. On the use of shear rheology to formulate stable foams. Example of a lyotropic lamellar phase. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.07.077] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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44
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Briceño-Ahumada Z, Maldonado A, Impéror-Clerc M, Langevin D. On the stability of foams made with surfactant bilayer phases. SOFT MATTER 2016; 12:1459-1467. [PMID: 26647140 DOI: 10.1039/c5sm02541a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The stability of foams made with sponge phases (L3 phases) and lamellar phases (L(α) phases), both containing surfactant bilayers, has been investigated. The extreme stability of foams made with lamellar phases seems essentially due to the high viscosity of the foaming solution, which slows down gravity drainage. Moreover, the foams start draining only when the buoyancy stress overcomes the yield stress of the L(α) phase. The bubble growth associated with gas transfer is unusual: it follows a power law with an exponent smaller than those corresponding to Ostwald ripening (wet foams) and to coarsening (dry foams). The foams made with sponge phases are in turn very unstable, even less stable than pure surfactant foams made with glycerol solutions having the same viscosity. The fact that the surfactant bilayers in the sponge phase have a negative Gaussian curvature could facilitate bubble coalescence.
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Affiliation(s)
- Zenaida Briceño-Ahumada
- Laboratoire de Physique des Solides, Université Paris Sud CNRS, Université Paris Saclay, Bâtiment 510, 91400 Orsay Cedex, France
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45
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Jiang L, Li S, Yu W, Wang J, Sun Q, Li Z. Interfacial study on the interaction between hydrophobic nanoparticles and ionic surfactants. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.10.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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46
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How colloid–colloid interactions and hydrodynamic effects influence the percolation threshold: A simulation study in alumina suspensions. J Colloid Interface Sci 2015; 458:241-6. [DOI: 10.1016/j.jcis.2015.07.058] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 07/24/2015] [Accepted: 07/24/2015] [Indexed: 11/23/2022]
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48
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Deleurence R, Saison T, Lequeux F, Monteux C. Time scales for drainage and imbibition in gellified foams: application to decontamination processes. SOFT MATTER 2015; 11:7032-7037. [PMID: 26246375 DOI: 10.1039/c5sm01158b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We probe the drainage and imbibition dynamics of foams in which the continuous aqueous phase is a transient gel-like network. To produce these foams, we provide a new method - a PVA (polyvinyl alcohol) solution is first foamed and then a cross-linker, Borax, is added, which binds reversibly to the PVA chains. The resulting foams are ultra-stable-over a month. We find that the typical time for gravitational drainage of the continuous phase can be slowed down from hours to several weeks by tuning the Borax concentration. We show that the Borax concentration controls both the bulk viscosity of the continuous phase and the surface viscosity of the air-water interfaces. From these results we suggest that the PVA molecules adsorbed at the bubble interfaces are highly cross-linked by the Borax molecules. We find that the capillary rise of a dyed liquid into these foams is orders of magnitude faster than the drainage flow, meaning that these foams can quickly absorb liquids. These results show that these foams could be used to clean or decontaminate surfaces covered with liquid wastes. Indeed we show that the PVA-Borax foam can easily be spread on a surface, absorb a liquid without destabilizing and be dried afterward to recover the waste.
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Affiliation(s)
- Rémi Deleurence
- École Supérieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI), ParisTech, PSL Research University, Sciences et Ingénierie de la Matière Molle (SIMM), CNRS UMR 7615, 10 rue Vauquelin, F-75231 Paris cedex 05, France.
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Drenckhan W, Saint-Jalmes A. The science of foaming. Adv Colloid Interface Sci 2015; 222:228-59. [PMID: 26056064 DOI: 10.1016/j.cis.2015.04.001] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 04/08/2015] [Accepted: 04/08/2015] [Indexed: 02/02/2023]
Abstract
The generation of liquid foams is at the heart of numerous natural, technical or scientific processes. Even though the subject of foam generation has a long-standing history, many recent progresses have been made in an attempt to elucidate the fundamental processes at play. We review the subject by providing an overview of the relevant key mechanisms of bubble generation within a coherent hydrodynamic context; and we discuss different foaming techniques which exploit these mechanisms.
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