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Mahmoudvand M, Vatanparast H, Javadi A, Kantzas A, Burns S, Dolgos M, Miller R, Bahramian A. Evaluation of Interfacial Structure of Self-Assembled Nanoparticle Layers: Use of Standard Deviation between Calculated and Experimental Drop Profiles as a Novel Method. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:2130-2145. [PMID: 38214546 DOI: 10.1021/acs.langmuir.3c03081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
The self-assembly of nanoparticles (NPs) at interfaces is currently a topic of increasing interest due to numerous applications in food technology, pharmaceuticals, cosmetology, and oil recovery. It is possible to create tunable interfacial structures with desired characteristics using tailored nanoparticles that can be precisely controlled with respect to shape, size, and surface chemistry. To address these functionalities, it is essential to develop techniques to study the properties of the underlying structure. In this work, we propose an experimental approach utilizing the standard deviation of drop profiles calculated by the Laplace equation from experimental drop profiles (STD), as an alternative to the Langmuir trough or precise microscopic methods, to detect the initiation of closely packed conditions and the collapse of the adsorbed layers of CTAB-nanosilica complexes. The experiments consist of dynamic surface/interfacial tension measurements using drop profile analysis tensiometry (PAT) and large-amplitude drop surface area compression/expansion cycles. The results demonstrate significant changes in STD values at the onset of the closely packed state of nanoparticle-surfactant complexes and the monolayer collapse. The STD trend was explained in detail and shown to be a powerful tool for analyzing the adsorption and interfacial structuring of nanoparticles. Different collapse mechanisms were reported for NP monolayers at the liquid/liquid and air/liquid interfaces. We show that the interfacial tension (IFT) is solely dependent on the extent of interfacial coverage by nanoparticles, while the surfactants regulate only the hydrophobicity of the self-assembled complexes. Also, the irreversible adsorption of nanoparticles and the increasing number of adsorbed complexes after the collapse were observed by performing consecutive drop surface compression/expansion cycles. In addition to a qualitative characterization of adsorption layers, the potential of a quantitative calculation of the parameter STD such as the number of adsorbed nanoparticles at the interface and the distance between them at different states of the interfacial layer was discussed.
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Affiliation(s)
- Mohsen Mahmoudvand
- Department of Chemical and Petroleum Engineering, University of Calgary, T2N 1N4 Calgary, Alberta, Canada
| | - Hamid Vatanparast
- Chemical Engineering Department, College of Engineering, University of Tehran, 1417614411 Tehran, Iran
| | - Aliyar Javadi
- Chemical Engineering Department, College of Engineering, University of Tehran, 1417614411 Tehran, Iran
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Fluid Dynamics, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Apostolos Kantzas
- Department of Chemical and Petroleum Engineering, University of Calgary, T2N 1N4 Calgary, Alberta, Canada
| | - Stuart Burns
- Department of Chemistry, University of Calgary, 2500 University Drive NW, T2N 1N4 Calgary, Alberta, Canada
| | - Michelle Dolgos
- Department of Chemistry, University of Calgary, 2500 University Drive NW, T2N 1N4 Calgary, Alberta, Canada
| | - Reinhard Miller
- Technical University Darmstadt, Institute of Condensed Matter Physics, Hochschulstraße 8, D-64289 Darmstadt, Germany
| | - Alireza Bahramian
- Chemical Engineering Department, College of Engineering, University of Tehran, 1417614411 Tehran, Iran
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2
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Daneshfar R, Ashoori S, Soltani Soulgani B. Transport and retention of silica nanoparticles in glass-bead columns: effects of particle size, type, and concentration of ionic species. Sci Rep 2024; 14:685. [PMID: 38182781 PMCID: PMC10770182 DOI: 10.1038/s41598-023-51119-8] [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: 08/31/2023] [Accepted: 12/30/2023] [Indexed: 01/07/2024] Open
Abstract
Silica nanoparticles (SiO2 NPs) have garnered substantial attention as versatile additives in saline fluids, finding application in areas like environmental remediation, wastewater treatment, enhanced oil recovery, and carbon geo-sequestration. Despite their potential, the intricate interaction between electrolyzed nanoparticles and porous media remains inadequately researched in these contexts. This study delves into the pivotal yet underexplored aspect of silica nanoparticle absorption behavior within porous media, a key determinant of their practical effectiveness. The research focuses on silica particles with dimensions of 10 nm and 50 nm, synthesized via hydrolysis and condensation of tetraethyl orthosilicate (TEOS) in methanol. Employing packed glass bead columns as a surrogate for porous media, the study unravels the complex mechanisms governing nanoparticle transport and deposition. Comprehensive investigations encompass variations in particle sizes, ionic strength, and ionic species, resulting in the examination of 48 distinct flooding scenarios. UV/Vis spectrophotometry is used to quantify nanoparticle concentrations in effluents, elucidating their transport behavior within the porous media. Concurrently, pressure drop alterations across the media serve as indicators of particle plugging and changes in permeability. Intriguingly, specific conditions involving a nanofluid comprising 50 nm silica nanoparticles and 10,000 ppm of magnesium chloride exhibit pronounced permeability reduction, offering potential insights for optimizing applications. Particularly noteworthy is the unique reduction in silica particle retention on glass bead surfaces as salinity increases, especially in the presence of magnesium sulfate. A concentration of 5000 ppm magnesium sulfate induces a log-jamming mechanism, resulting in an amplified final-to-intermediate permeability ratio. Experimental outcomes align with observations from scanning electron microscopy, improving understanding of porous media retention mechanisms. This study contributes to a deeper understanding of interactions between nanoparticles and porous media, paving the way for enhanced application strategies.
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Affiliation(s)
- Reza Daneshfar
- Department of Petroleum Engineering, Ahvaz Faculty of Petroleum Engineering, Petroleum University of Technology (PUT), Ahvaz, Iran
| | - Siavash Ashoori
- Department of Petroleum Engineering, Ahvaz Faculty of Petroleum Engineering, Petroleum University of Technology (PUT), Ahvaz, Iran.
| | - Bahram Soltani Soulgani
- Department of Petroleum Engineering, Ahvaz Faculty of Petroleum Engineering, Petroleum University of Technology (PUT), Ahvaz, Iran
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3
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Tighchi HA, Kayhani MH, Faezian A, Yeganehzad S, Miller R. Dynamic interfacial properties and foam behavior of licorice root extract solutions. Colloids Surf B Biointerfaces 2023; 224:113181. [PMID: 36822115 DOI: 10.1016/j.colsurfb.2023.113181] [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: 11/23/2022] [Revised: 01/17/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023]
Abstract
Licorice (Glycyrrhiza glabra) is a useful plant of the family Fabaceae, with sweet-tasting roots. The root extract of this plant is rich in saponins, so it can be considered a source of natural surfactants. This research provides some applicable information about the dynamic surface tension and foam behavior of aqueous solutions of licorice root extract (LRE). The pendant drop shape analysis was utilized to study the surface tension and dilational surface rheology of LRE at the water/air interface. The Bikerman type experiment was used to measure foamability and foam stability of aqueous LRE solutions. The equilibrium surface tensions reveal that the LRE contains surface-active components and is capable of reducing the surface tension by 25 mN/m at the critical aggregation concentration (CAC). The surface dilational visco-elasticity measurements proved that the adsorption layers are predominantly of elastic nature. Also the foamability and foam stability show a meaningful correlation with the dynamic surface properties. This study aims to contribute to the development of appropriate utilization of the benefits provided by a biosurfactant source in foam-related commercial applications.
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Affiliation(s)
- Hashem Ahmadi Tighchi
- Faculty of Mechanical Engineering, Shahrood University of Technology, Shahrood, Iran
| | | | - Ali Faezian
- Department of Food Machinery Design, Research Institute of Food Science & Technology (RIFST), Mashhad, Iran
| | - Samira Yeganehzad
- Department of Food Processing, Research Institute of Food Science & Technology (RIFST), Mashhad, Iran
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4
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Sheng Y, Peng Y, Zhang S, Guo Y, Ma L, Zhang H. Thermal stability of foams stabilized by fluorocarbon and hydrocarbon surfactants in presence of nanoparticles with different specific surface areas. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Xinying W, Peng X, Mingbiao X, Lei P, Yu Z. Synergistic Improvement of Foam Stability with SiO2 Nanoparticles (SiO2-NPs) and Different Surfactants. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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6
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Effect of surfactant types on the foam stability of multiwalled carbon nanotube stabilized foam. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129389] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Influence of nanoparticles on the foam thermal stability of mixtures of short-chain fluorocarbon and hydrocarbon surfactants. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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8
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Dharamalingam K, Arjun Kumar B, Ramalingam G, Sasi Florence S, Raju K, Senthil Kumar P, Govindaraju S, Thangavel E. The role of sodium dodecyl sulfate mediated hydrothermal synthesis of MoS 2 nanosheets for photocatalytic dye degradation and dye-sensitized solar cell application. CHEMOSPHERE 2022; 294:133725. [PMID: 35081401 DOI: 10.1016/j.chemosphere.2022.133725] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/31/2021] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
The novel properties and exciting behavior of two-dimensional nanosheet-based materials have piqued the interest of research all over the world. In this study, bulk molybdenum disulfide (bulk MoS2) and sodium dodecyl sulfate-mediated molybdenum disulfide nanosheets (MoS2-SDS NS) were synthesized via a facile sonication and hydrothermal process. The findings from the characterization revealed that the addition of sodium dodecyl sulfate (SDS) surfactant reduces the crystal phase and changes the structural morphology of bulk MoS2. Furthermore, the photocatalytic and photovoltaic performance of bulk MoS2 and MoS2-SDS NS were also investigated. The results show that by using methylene blue dye, the photocatalytic efficiency increased from 56.30% to 91.84% at 150 min under UV-Visible light irradiation, and the photo-conversion efficiency (PEC (%)) of the dye-sensitized solar cell increased from 1.47% to 3.81% for bulk MoS2 and MoS2-SDS NS, respectively. Finally, we discussed in-depth the effect of SDS surfactants on MoS2, which can improve their photovoltaic and photocatalytic performance.
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Affiliation(s)
- Karthigaimuthu Dharamalingam
- Smart Energy Materials Laboratory, Department of Energy Science and Technology, Periyar University, Salem, India
| | - B Arjun Kumar
- Quantum Materials Research Lab (QMRL), Department of Nanoscience and Technology, Alagappa University, Karaikudi, 630003, Tamil Nadu, India
| | - G Ramalingam
- Quantum Materials Research Lab (QMRL), Department of Nanoscience and Technology, Alagappa University, Karaikudi, 630003, Tamil Nadu, India
| | - S Sasi Florence
- Department of Physics, Jazan University, Jizan, Saudi Arabia
| | - Kumar Raju
- Energy Centre, Council for Scientific and Industrial Research (CSIR), Pretoria, 0001, South Africa
| | - P Senthil Kumar
- Centre of Excellence in Water aResearch (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, 603 110, India
| | | | - Elangovan Thangavel
- Smart Energy Materials Laboratory, Department of Energy Science and Technology, Periyar University, Salem, India.
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9
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Pickering foams and parameters influencing their characteristics. Adv Colloid Interface Sci 2022; 301:102606. [PMID: 35182930 DOI: 10.1016/j.cis.2022.102606] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/20/2022] [Accepted: 01/26/2022] [Indexed: 11/21/2022]
Abstract
Pickering foams are available in many applications and have been continually gaining interest in the last two decades. Pickering foams are multifaceted, and their characteristics are highly dependent on many factors, such as particle size, charge, hydrophobicity and concentration as well as the charge and concentration of surfactants and salts available in the system. A literature review of these individual studies at first might seem confusing and somewhat contradictory, particularly in multi-component systems with particles and surfactants with different charges in the presence of salts. This paper provides a comprehensive overview of particle-stabilized foams, also known as Pickering foams and froths. Underlying mechanisms of foam stabilization by particles with different morphology, surface chemistry, size and type are reviewed and clarified. This paper also outlines the role of salts and different factors such as pH, temperature and gas type on Pickering foams. Further, we highlight recent developments in Pickering foams in different applications such as food, mining, oil and gas, and wastewater treatment industries, where Pickering foams are abundant. We conclude this overview by presenting important research avenues based on the gaps identified here. The focus of this review is limited to Pickering foams of surfactants with added salts and does not include studies on polymers, proteins, or other macromolecules.
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Sheng Y, Peng Y, Zhang S, Guo Y, Ma L, Wang Q, Zhang H. Study on Thermal Stability of Gel Foam Co-Stabilized by Hydrophilic Silica Nanoparticles and Surfactants. Gels 2022; 8:gels8020123. [PMID: 35200504 PMCID: PMC8872208 DOI: 10.3390/gels8020123] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/02/2022] [Accepted: 02/10/2022] [Indexed: 02/06/2023] Open
Abstract
The combination of nanoparticles (NP) and surfactant has been intensively studied to improve the thermal stability and optimize the performance of foams. This study focuses on the influence of silica NPs with different concentration on the thermal stability of gel foams based on a mixture of fluorocarbon (FS-50) and hydrocarbon (APG0810) surfactants. The surface activity, conductivity, viscosity, and foaming ability of the APG0810/FS-50/NPs dispersions are characterized. The effects of NP concentration on coarsening, drainage, and decay, as well as of the gel foams under thermal action, are systematically studied. Results show that NP concentration has a significant effect on the molecular interactions of the APG0810/FS-50/NP dispersions. The surface tension and conductivity of the dispersions decrease but the viscosity increases with the increase in NP concentration. The foaming ability of APG0810/FS-50 solution is reduced by the addition of NPs and decreases with the increase in NP concentration. The coarsening, drainage, and decay of the gel foams under thermal action slow down significantly with increasing NP concentration. The thermal stability of the gel foams increases with the addition of NPs and further increases with the increase in NP concentration. This study provides a theoretical guidance for the application for gel foams containing NPs and surfactants in fire-extinguishing agents.
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Affiliation(s)
- Youjie Sheng
- College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (Y.P.); (S.Z.); (Q.W.); (H.Z.)
- Correspondence: (Y.S.); (L.M.); Tel.: +86-183-925-127-21 (Y.S.); +86-137-599-282-79 (L.M.)
| | - Yunchuan Peng
- College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (Y.P.); (S.Z.); (Q.W.); (H.Z.)
| | - Shanwen Zhang
- College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (Y.P.); (S.Z.); (Q.W.); (H.Z.)
| | - Ying Guo
- College of Safety Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China;
- Yanzhou Coal Mining Co., Ltd., Zoucheng 237500, China
| | - Li Ma
- College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (Y.P.); (S.Z.); (Q.W.); (H.Z.)
- Correspondence: (Y.S.); (L.M.); Tel.: +86-183-925-127-21 (Y.S.); +86-137-599-282-79 (L.M.)
| | - Qiuhong Wang
- College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (Y.P.); (S.Z.); (Q.W.); (H.Z.)
| | - Hanling Zhang
- College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China; (Y.P.); (S.Z.); (Q.W.); (H.Z.)
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11
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Da C, Chen X, Zhu J, Alzobaidi S, Garg G, Johnston KP. Elastic gas/water interface for highly stable foams with modified anionic silica nanoparticles and a like-charged surfactant. J Colloid Interface Sci 2022; 608:1401-1413. [PMID: 34749135 DOI: 10.1016/j.jcis.2021.10.058] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 10/10/2021] [Accepted: 10/11/2021] [Indexed: 10/20/2022]
Abstract
HYPOTHESIS Surface active anionic nanoparticles (NPs) with strategically designed covalent ligands may be combined with a liked-charged surfactant to form a highly elastic gas-water interface leading to highly stable gas/water foams. EXPERIMENTS The colloidal stability of the NPs was determined by dynamic light scattering, and the surface elastic dilational modulus E' of the interface by sinusoidal oscillation of a pendant droplet at 0.1 Hz, which was superimposed on large-amplitude compression-expansion cycles. The foam stability was measured with optical microscopy of the bubble size distribution and from the macroscopic foam height. FINDINGS The NPs played the key role the formation of a highly elastic air-water interface with a high E' despite a surfactant level well above the critical micelle concentration. Unlike the case for most previous studies, the NP amphiphilicity was essentially independent of the surfactant given the very low adsorption of the surfactant on the like-charged NP surfaces. With high E' values, both coalescence and coarsening were reduced leading to highly foam up to 80 °C. However, the surfactant facilitated foam generation at much lower shear rates than with NPs alone. The tuning of NP surfaces with ligands for colloidal stability in brine and simultaneously high amphiphilicity at the gas-water interface, over a wide range in surfactant concentration, is of broad interest for enabling the design of highly stable foams.
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Affiliation(s)
- Chang Da
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas, Austin, TX, USA
| | - Xiongyu Chen
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas, Austin, TX, USA
| | - Jingyi Zhu
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas, Austin, TX, USA
| | - Shehab Alzobaidi
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas, Austin, TX, USA
| | - Gaurav Garg
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas, Austin, TX, USA
| | - Keith P Johnston
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas, Austin, TX, USA.
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Tang H, Song J, Zha M, He J, Yan Z. Molecular Dynamics Simulation on the
Structure–Activity
Relationship between the Gemini Surfactant and Foam Properties. AIChE J 2022. [DOI: 10.1002/aic.17625] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Haifeng Tang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang China
- Co‐Innovation Center of Jiangsu Marine Bio‐industry Technology Jiangsu Ocean University Lianyungang China
| | - Jiamei Song
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang China
| | - Mengling Zha
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang China
| | - Jincheng He
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang China
| | - Zhihu Yan
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology Jiangsu Ocean University Lianyungang China
- Co‐Innovation Center of Jiangsu Marine Bio‐industry Technology Jiangsu Ocean University Lianyungang China
- School of Petroleum Engineering China University of Petroleum (East China) Qingdao China
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Sheng Y, Peng Y, Yan C, Li Y, Ma L, Wang Q, Zhang S. Influence of nanoparticles on rheological properties and foam properties of mixed solutions of fluorocarbon and hydrocarbon surfactants. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2021.117067] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Sheng Y, Xue M, Zhang S, Wang Y, Zhai X, Ma L, Hu D, Huang X. Effect of xanthan gum and silica nanoparticles on improving foam properties of mixed solutions of short-chain fluorocarbon and hydrocarbon surfactants. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116952] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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15
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Aggregation behavior and foam properties of the mixture of hydrocarbon and fluorocarbon surfactants with addition of nanoparticles. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115070] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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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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Role of nanoparticles in the performance of foam stabilized by a mixture of hydrocarbon and fluorocarbon surfactants. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115977] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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The surface modification and characterization of SiO 2 nanoparticles for higher foam stability. Sci Rep 2020; 10:19399. [PMID: 33173140 PMCID: PMC7655949 DOI: 10.1038/s41598-020-76464-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 10/28/2020] [Indexed: 11/16/2022] Open
Abstract
The surfactant and colloidal nanoparticles has been considered for various applications because of interaction of both complex mixtures. The hydrophilic SiO2 nanoparticle could not be surface active behavior at the liquid/air interface. In this study, the SiO2 nanoparticles have been modified with 3-isocyanatopropyltriethoxy-silane (ICP), and the effect of foam stability has been investigated. The physical properties of surface modified SiO2 nanoparticle were analyzed by XRD, TGA, FT-IR, and SEM. After surface modification of SiO2 nanoparticles, the contact angle of SiO2 nanoparticle was also increased from 62° to 82° with increased ICP concentration. The experimental result has shown that SiO2 nanoparticle with ICP was positive effect and improved foam stability could be obtained at proper ICP concentration compared with un-modified SiO2 nanoparticle.
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20
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Monjezi K, Mohammadi M, Khaz'ali AR. Stabilizing CO2 foams using APTES surface-modified nanosilica: Foamability, foaminess, foam stability, and transport in oil-wet fractured porous media. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113043] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Hu M, Zhang Y, Gao W, Jing D. Effects of the complex interaction between nanoparticles and surfactants on the rheological properties of suspensions. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124377] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Wetting behavior of oppositely charged polystyrene sulfonate/hexadecyl trimethyl ammonium bromide complexes near critical aggregation concentration on carbonate reservoir rocks. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Eftekhari M, Schwarzenberger K, Javadi A, Eckert K. The influence of negatively charged silica nanoparticles on the surface properties of anionic surfactants: electrostatic repulsion or the effect of ionic strength? Phys Chem Chem Phys 2020; 22:2238-2248. [PMID: 31915756 DOI: 10.1039/c9cp05475h] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The presence of negatively charged nanoparticles affects the surface activity of anionic surfactants in an aqueous phase. Recent studies suggest that electrostatic repulsive forces play an important role in increasing the surface activity of surfactants. However, the addition of nanoparticles also increases the ionic strength of the system, which has a significant impact on the surfactant's properties, e.g. its critical micelle concentration (CMC). To investigate how and to what extent electrostatic forces and ionic strength influence the behavior of ionic surfactants, the surface tension and elasticity of different solutions were measured using drop profile tensiometry as a function of the surfactant (SDBS), nanoparticle (silica) and salt (KNO3) concentration. It is observed that the surface activity of the surfactants is mainly influenced by the change in the system's ionic strength due to the presence of nanoparticles. Several characteristic parameters including the equivalent concentration of the surfactant, the CMC and the apparent partial molar area of the adsorbed surfactant are theoretically calculated and further employed to validate experimental observations. Both the nanoparticles and electrolyte decrease the CMC, while the equivalent concentration of the surfactant remains nearly constant. This paper presents a criterion to estimate the possible influence of such forces for nanoparticles of different sizes and mass fractions.
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Affiliation(s)
- Milad Eftekhari
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, Bautzner Landstrasse 400, 01328 Dresden, Germany. and TU Dresden, Institute of Process Engineering and Environmental Technology, 01062 Dresden, Germany
| | - Karin Schwarzenberger
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, Bautzner Landstrasse 400, 01328 Dresden, Germany. and TU Dresden, Institute of Process Engineering and Environmental Technology, 01062 Dresden, Germany
| | - Aliyar Javadi
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, Bautzner Landstrasse 400, 01328 Dresden, Germany. and TU Dresden, Institute of Process Engineering and Environmental Technology, 01062 Dresden, Germany and Institute of Petroleum Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran
| | - Kerstin Eckert
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, Bautzner Landstrasse 400, 01328 Dresden, Germany. and TU Dresden, Institute of Process Engineering and Environmental Technology, 01062 Dresden, Germany
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24
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Meng L, Liu Q, Wang J, Fan Z, Wei X. Hydrophobic mesoporous silicon dioxide for improving foam stability. RSC Adv 2020; 10:18565-18571. [PMID: 35518323 PMCID: PMC9053769 DOI: 10.1039/d0ra02161j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 06/09/2020] [Accepted: 04/24/2020] [Indexed: 12/02/2022] Open
Abstract
In this study, mesoporous SiO2 nanoparticles (MSNs) were synthesized via a sol–gel method and modified with (3-chloropropyl) trimethoxysilane to make them hydrophobic (MMSNs). The material was characterized via SEM, TEM, FT-IR, DLS, BET and contact angle measurements. The MMSNs have good foam stability, so that the foam properties of the added particles have been increased by 38.4% in an oil/SDS solution. Simultaneously, it becomes a promising material for foam stabilization in order to enhance the oil recovery because it is bio-compatibile and environment friendly. Also, it provides a novel application-stable foam for mesoporous materials. In this study, mesoporous SiO2 nanoparticles (MSNs) were synthesized via a sol–gel method and modified with (3-chloropropyl) trimethoxysilane to make them hydrophobic (MMSNs).![]()
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Affiliation(s)
- Lihui Meng
- Key Laboratory of Improving Oil Recovery by Ministry of Education
- Northeast Petroleum University
- Daqing
- China
| | - Qingwang Liu
- Key Laboratory of Improving Oil Recovery by Ministry of Education
- Northeast Petroleum University
- Daqing
- China
| | - Jigang Wang
- Key Laboratory of Improving Oil Recovery by Ministry of Education
- Northeast Petroleum University
- Daqing
- China
| | - Zhenzhong Fan
- Key Laboratory of Improving Oil Recovery by Ministry of Education
- Northeast Petroleum University
- Daqing
- China
| | - Xiaoming Wei
- National Energy Research and Development Center of Heavy Oil
- Panjin
- China
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25
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Role of surfactant in controlling the deposition pattern of a particle-laden droplet: Fundamentals and strategies. Adv Colloid Interface Sci 2020; 275:102049. [PMID: 31757386 DOI: 10.1016/j.cis.2019.102049] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 09/21/2019] [Accepted: 10/15/2019] [Indexed: 11/24/2022]
Abstract
Evaporation of particle-laden droplets has attracted wide attention propelled by the vast applications from disease diagnostics, bio-medicines, agriculture, inkjet printing to coating. Surfactant plays a vital role in controlling the deposition patterns of dried droplets, thanks to its extensive influences on particle transport through adsorbing at particle surface and droplet interfaces as well as suppressing or facilitating multiple flows. In order to accurately control the subtle morphology of a deposition, it is of significance to systematically elaborate the microscopic functions of surfactant, and bridge them to the various phenomena of a droplet. In this review, we first elucidate the effects of surfactant on the flow paradigms of capillary flow, solutal Marangoni flow, thermal Marangoni flow, and the mixed flow patterns as capillary force, thermal and solutal surface tensions are in competence or collaboration. Second, surfactant adsorption at particle surface and droplet interfaces modifying short-range and long-range forces such as electrostatic force, van der Waals force, capillary attraction, and hydrophobic bonding among particles and between particles and interfaces are introduced by the underlying mechanisms and approaches. Two phase diagrams are developed to respectively illustrate the roles of capillary force among particles, and the electrostatic interaction between particles and solid-liquid interface in modifying the deposition profiles. This review could build a fundamental framework of knowledge for evaporating particle-laden surfactant solution droplets, and may shed light on strategies to manipulate particle deposition in abundant fluidic-based techniques.
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26
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Hashemi S, Saien J. Highly efficient [C8mim][Cl] ionic liquid accompanied with magnetite nanoparticles and different salts for interfacial tension reduction. Chin J Chem Eng 2020. [DOI: 10.1016/j.cjche.2019.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Cerrone F, Radivojevic J, Nikodinovic-Runic J, Walsh M, Kenny ST, Babu R, O’Connor KE. Novel sodium alkyl-1,3-disulfates, anionic biosurfactants produced from microbial polyesters. Colloids Surf B Biointerfaces 2019; 182:110333. [DOI: 10.1016/j.colsurfb.2019.06.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 06/14/2019] [Accepted: 06/26/2019] [Indexed: 12/14/2022]
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28
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Smits J, Vieira F, Bisswurn B, Rezwan K, Maas M. Reversible Adsorption of Nanoparticles at Surfactant-Laden Liquid-Liquid Interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:11089-11098. [PMID: 31368712 DOI: 10.1021/acs.langmuir.9b01568] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this study, we show that hydrophilic nanoparticles can readily desorb from liquid-liquid interfaces in the presence of surfactants that do not change the wettability of the particles. Our observations are based on a simple theoretical approach to assess the number of adsorbed particles at the surfactant-laden liquid-liquid interface. We test this approach by studying the interfacial self-assembly of equally charged particles and lipids dissolved in separate immiscible phases. Hence, we investigate the interfacial adsorption of aminated silica particles (80 nm) and octadecylamine to the decane/water interface by interfacial tension measurements, which are supplemented by interfacial rheology of the adsorbed interfacial films, scanning electron microscopy images of Langmuir-Blodgett films, and measurements of the three-phase contact angle of the particle surface in the presence of surfactants. The measurements show that particles adsorb at the surfactant-laden interface at all investigated surfactant concentrations and compete with the surfactants for interfacial coverage. Additionally, the wettability of the hydrophilic particles does not change in the presence of the lipids, except for the highest investigated lipid concentration. Comparing the adsorption energies of one particle and of the lipids as a function of the particle contact angle provides an estimate of the tendency for interfacial adsorption of particles from which the particle coverage can be assessed. Based on these findings, equally charged particles and lipids show a competitive behavior at the interface determined by the bulk surfactant concentration and the attachment energies of the particles at the interface. This leads to a simple mechanistic model demonstrating that particles can readily desorb from the interface due to direct displacement by surfactants, which are loosely adsorbed at the oil-facing particle side. This mechanism critically lowers the otherwise high interfacial energy barrier against particle desorption, which otherwise would lead to virtually irreversible particle attachment at the interface.
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Affiliation(s)
- Joeri Smits
- Advanced Ceramics , University of Bremen , Am Biologischen Garten 2 , D-28359 Bremen , Germany
| | - Felipi Vieira
- Advanced Ceramics , University of Bremen , Am Biologischen Garten 2 , D-28359 Bremen , Germany
- Department of Mechanical Engineering , Federal University of Santa Catarina , 88040-900 Florianópolis , Brazil
| | - Bianca Bisswurn
- Advanced Ceramics , University of Bremen , Am Biologischen Garten 2 , D-28359 Bremen , Germany
- Department of Mechanical Engineering , Federal University of Santa Catarina , 88040-900 Florianópolis , Brazil
| | - Kurosch Rezwan
- Advanced Ceramics , University of Bremen , Am Biologischen Garten 2 , D-28359 Bremen , Germany
- MAPEX Center for Materials and Processes , University of Bremen , 28359 Bremen , Germany
| | - Michael Maas
- Advanced Ceramics , University of Bremen , Am Biologischen Garten 2 , D-28359 Bremen , Germany
- MAPEX Center for Materials and Processes , University of Bremen , 28359 Bremen , Germany
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29
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Raza MQ, Kumar N, Raj R. Effect of foamability on pool boiling critical heat flux with nanofluids. SOFT MATTER 2019; 15:5308-5318. [PMID: 31225545 DOI: 10.1039/c8sm02565g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Foaming, which is of significant importance to many industrial processes, is attributed to the reduced coalescence of bubbles due to the presence of stabilizing/foaming agents such as surfactants and nanoparticles. While foams have been extensively investigated for their rheological properties, their impact on the critical heat flux (CHF) during boiling is not well understood. The technical benefits of CHF enhancement with nanofluids are lost when surfactants are added to improve their stability. The actual mechanism of this decrease is unresolved, and thermal engineers are forced to look for alternative CHF enhancement solutions. Here, we showed that nucleating bubbles formed vapor-foam and crowded the heater surface to inhibit rewetting. Less frequent rewetting forces premature dryout, which is primarily responsible for the reported CHF deterioration. In this regime, strong foaming agents such as SDS mask the effect of nanoparticles on CHF. Using these insights, we presented a master curve that captured the effect of foamability on CHF and could be used to predict the value of CHF solely based on the foamability of the solution. We further showed that the CHF mechanism switched from the foamability regime to the conventional wettability regime upon lowering the surfactant concentration and/or with weakly foaming surfactants. In such cases, an increase in the nanoparticle concentration successfully increased CHF. We believe that the important clarifications regarding the CHF mechanism with nanofluids and the master curve of CHF versus foamability presented in this study will facilitate the design of energy-efficient boiling systems.
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Affiliation(s)
- Md Qaisar Raza
- Thermal and Fluid Transport Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Patna, Bihar 801103, India.
| | - Nirbhay Kumar
- Thermal and Fluid Transport Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Patna, Bihar 801103, India.
| | - Rishi Raj
- Thermal and Fluid Transport Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Patna, Bihar 801103, India.
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30
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Vatanparast H, Eftekhari M, Javadi A, Miller R, Bahramian A. Influence of hydrophilic silica nanoparticles on the adsorption layer properties of non-ionic surfactants at water/heptane interface. J Colloid Interface Sci 2019; 545:242-250. [PMID: 30897419 DOI: 10.1016/j.jcis.2019.03.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 03/12/2019] [Accepted: 03/13/2019] [Indexed: 10/27/2022]
Abstract
There is a notable paucity of studies investigating the impact of charged nanoparticles on the interfacial behavior of nonionic surfactants, assuming that the interactions are negligible in the absence of electrostatic forces. Here, we argue about our observations and the existence of a complex interfacial behavior in such systems depending on the type and chemical structure of surfactant. This study set out to investigate the effects of interactions between hydrophilic silica nanoparticles (NP) and non-ionic surfactants on water/heptane dynamic interfacial properties using drop profile analysis tensiometry (PAT). Three surfactants were studied, namely Triton X-100 (significantly soluble in water phase), C12DMPO (well soluble in both phases) and SPAN 80 (oil-soluble). The different chemical structures and partition coefficients of the surfactants enabled us to cover possible interactions and differentiate between bulk and interfacial interactions. We observed that hydrophilic silica NPs had a negligible effect on the interfacial behavior of Triton X-100, that they increased the surface activity of C12DMPO when both compounds are initially in the aqueous phase. Most interestingly is that the added NPs generated unstable interfacial NP-surfactant complexes and reduced the pseudo-equilibrium interfacial tension of oil-soluble surfactant, Span 80, even though NPs and surfactants were in different bulk phases.
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Affiliation(s)
- Hamid Vatanparast
- Institute of Petroleum Engineering, Chemical Engineering Department, University of Tehran, Iran; IOR Research Institute, Tehran, Iran.
| | - Milad Eftekhari
- Institute of Petroleum Engineering, Chemical Engineering Department, University of Tehran, Iran
| | - Aliyar Javadi
- Institute of Petroleum Engineering, Chemical Engineering Department, University of Tehran, Iran; Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, 01318 Dresden, Germany
| | - Reinhard Miller
- Max Planck Institute of Colloids and Interfaces, D-14476 Potsdam/Golm, Germany
| | - Alireza Bahramian
- Institute of Petroleum Engineering, Chemical Engineering Department, University of Tehran, Iran
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31
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Vishal B, Ghosh P. The effect of silica nanoparticles on the stability of aqueous foams. J DISPER SCI TECHNOL 2019. [DOI: 10.1080/01932691.2018.1467771] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Badri Vishal
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Pallab Ghosh
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
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32
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Dynamic interfacial properties and foamability of polyelectrolyte-surfactant mixtures. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.11.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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33
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Modifying interfacial interparticle forces to alter microstructure and viscoelasticity of densely packed particle laden interfaces. J Colloid Interface Sci 2019; 536:30-41. [DOI: 10.1016/j.jcis.2018.10.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 10/10/2018] [Accepted: 10/11/2018] [Indexed: 11/20/2022]
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34
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Vatanparast H, Shahabi F, Bahramian A, Javadi A, Miller R. The Role of Electrostatic Repulsion on Increasing Surface Activity of Anionic Surfactants in the Presence of Hydrophilic Silica Nanoparticles. Sci Rep 2018; 8:7251. [PMID: 29740036 PMCID: PMC5940767 DOI: 10.1038/s41598-018-25493-7] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 04/22/2018] [Indexed: 11/22/2022] Open
Abstract
Hydrophilic silica nanoparticles alone are not surface active. They, however, develop a strong electrostatic interaction with ionic surfactants and consequently affect their surface behavior. We report the interfacial behavior of n-heptane/anionic-surfactant-solutions in the presence of hydrophilic silica nanoparticles. The surfactants are sodium dodecyl sulfate (SDS) and dodecyl benzene sulfonic acid (DBSA), and the diameters of the used particles are 9 and 30 nm. Using experimental tensiometry, we show that nanoparticles retain their non-surface-active nature in the presence of surfactants and the surface activity of surfactant directly increases with the concentration of nanoparticles. This fact was attributed to the electrostatic repulsive interaction between the negatively charged nanoparticles and the anionic surfactant molecules. The role of electrostatic repulsion on increasing surface activity of the surfactant has been discussed. Further investigations have been performed for screening the double layer charge of the nanoparticles in the presence of salt. Moreover, the hydrolysis of SDS molecules in the presence of silica nanoparticles and the interaction of nanoparticles with SDS inherent impurities have been studied. According to our experimental observations, silica nanoparticles alleviate the effects of dodecanol, formed by SDS hydrolysis, on the interfacial properties of SDS solution.
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Affiliation(s)
- Hamid Vatanparast
- Institute of Petroleum Engineering, College of Engineering, University of Tehran, Tehran, Iran. .,IOR Research Institute (IORI), Tehran, Iran.
| | - Farshid Shahabi
- Institute of Petroleum Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Alireza Bahramian
- Institute of Petroleum Engineering, College of Engineering, University of Tehran, Tehran, Iran.
| | - Aliyar Javadi
- Institute of Petroleum Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Reinhard Miller
- Max-Planck-Institute for Colloid and Interface Science, D-14476, Golm, Germany
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35
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Stability and rheological properties of nanofluids stabilized by SiO2 nanoparticles and SiO2-TiO2 nanocomposites for oilfield applications. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2017.12.028] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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36
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Jin J, Li X, Geng J, Jing D. Insights into the complex interaction between hydrophilic nanoparticles and ionic surfactants at the liquid/air interface. Phys Chem Chem Phys 2018; 20:15223-15235. [DOI: 10.1039/c8cp01838c] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The effect of interaction between hydrophilic nanoparticles and ionic surfactants on the liquid/air interfacial properties has been investigated, and a possible mechanism has also been proposed.
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Affiliation(s)
- Jingyu Jin
- State Key Laboratory of Multiphase Flow in Power Engineering & International Research Center for Renewable Energy
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Xiaoyan Li
- State Key Laboratory of Multiphase Flow in Power Engineering & International Research Center for Renewable Energy
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Jiafeng Geng
- State Key Laboratory of Multiphase Flow in Power Engineering & International Research Center for Renewable Energy
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Dengwei Jing
- State Key Laboratory of Multiphase Flow in Power Engineering & International Research Center for Renewable Energy
- Xi’an Jiaotong University
- Xi’an 710049
- China
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37
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Kirby SM, Anna SL, Walker LM. Effect of surfactant tail length and ionic strength on the interfacial properties of nanoparticle-surfactant complexes. SOFT MATTER 2017; 14:112-123. [PMID: 29214259 DOI: 10.1039/c7sm01806a] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Mixed nanoparticle-surfactant systems are effective foam stabilizing agents, but the lack of colloidal stability of the bulk dispersions makes interfacial characterization challenging. This study investigates the adsorption of CnTAB/SiO2 complexes at air/water interfaces through surface tension and interfacial rheology measurements. The effects of surfactant tail length, ionic strength, and interfacial processing on the surface properties are measured utilizing a bulk reservoir exchange methodology to avoid bulk destabilization. The surfactant structure controls the surface tension of the system, but has minimal impact on particle surface coverage or interfacial mechanics. Once adsorbed, nanoparticles remain pinned at the surface, while the surfactant is able to desorb upon bulk exchange with deionized water. Particle packing on the interface governs the interfacial mechanics, which can be modified by increasing the ionic strength of the bulk solution. Fully rigid interfaces can be generated at low particle coverages by controlling the ionic strength and interfacial processing. These findings contribute to the understanding of mixed particle-surfactant systems and inform formulation and process design to achieve the desired interfacial mechanical properties.
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Affiliation(s)
- Stephanie M Kirby
- Department of Chemical Engineering, Center for Complex Fluids Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
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