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Sun J, Dai L, Lv K, Wen Z, Li Y, Yang D, Yan H, Liu X, Liu C, Li MC. Recent advances in nanomaterial-stabilized pickering foam: Mechanism, classification, properties, and applications. Adv Colloid Interface Sci 2024; 328:103177. [PMID: 38759448 DOI: 10.1016/j.cis.2024.103177] [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: 10/06/2023] [Revised: 04/07/2024] [Accepted: 05/03/2024] [Indexed: 05/19/2024]
Abstract
Pickering foam is a type of foam stabilized by solid particles known as Pickering stabilizers. These solid stabilizers adsorb at the liquid-gas interface, providing superior stability to the foam. Because of its high stability, controllability, versatility, and minimal environmental impact, nanomaterial-stabilized Pickering foam has opened up new possibilities and development prospects for foam applications. This review provides an overview of the current state of development of Pickering foam stabilized by a wide range of nanomaterials, including cellulose nanomaterials, chitin nanomaterials, silica nanoparticles, protein nanoparticles, clay mineral, carbon nanotubes, calcium carbonate nanoparticles, MXene, and graphene oxide nanosheets. Particularly, the preparation and surface modification methods of various nanoparticles, the fundamental properties of nanomaterial-stabilized Pickering foam, and the synergistic effects between nanoparticles and surfactants, functional polymers, and other additives are systematically introduced. In addition, the latest progress in the application of nanomaterial-stabilized Pickering foam in the oil industry, food industry, porous functional material, and foam flotation field is highlighted. Finally, the future prospects of nanomaterial-stabilized Pickering foam in different fields, along with directions for further research and development directions, are outlined.
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Affiliation(s)
- Jinsheng Sun
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China; Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao, Shandong 266580, China
| | - Liyao Dai
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Kaihe Lv
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China; Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao, Shandong 266580, China
| | - Zhibo Wen
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Yecheng Li
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Dongqing Yang
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Hao Yan
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Xinyue Liu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Chaozheng Liu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Mei-Chun Li
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao, Shandong 266580, China.
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2
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Fahemi N, Angizi S, Hatamie A. Integration of Ultrathin Bubble Walls and Electrochemistry: Innovation in Microsensing for Forensic Nitrite Detection and Microscale Metallic Film Deposition. Anal Chem 2024. [PMID: 38324919 DOI: 10.1021/acs.analchem.3c04488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
We present a strategy for electrochemical measurements using a durable minute bubble wall with a thickness of 27 μm (D = 1.8 cm) as an innovative electrochemical medium. The composition, thickness, and volume of the tiny bubble film were investigated and estimated using the spectroscopic method and the Beer-Lambert law. A carbon microelectrode (D = 10 μm) was then employed as the working electrode, inserted through the bubble wall to function as the solution interface. First, the potential of this method for microelectrodeposition of metallic Ag and Pd films in a tiny bubble was investigated. Interestingly, microscopic images of the deposited film clearly demonstrated that the bubble thickness determines and confines the electrochemical deposition zone. In other words, innovative template-free microelectrodeposition was achieved. In the second phase of our work, microelectroanalysis of trace levels of nitrite ions was performed within the bubble wall and on a foam-covered hand, between the fingers directly, with a low limit of detection of 28 μM. This technique holds significance in criminal investigations, as the presence of NO2- ions on the hand indicates the potential presence of gunshot residue and aids in identifying suspects. In comparison to current methods, this approach is rapid, simple, cost-effective, and amenable to on-site applications, eliminating the need for sample treatment. Ultimately, the utilization of a bubble wall as a novel electrochemical microreactor can open new ways in microelectrochemical analysis, presenting novel opportunities and applications in the field of electrochemical sensors.
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Affiliation(s)
- Nikoo Fahemi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Prof. Sobouti Boulevard, P.O. Box 45195-1159, Zanjan 45137-66731, Iran
| | - Shayan Angizi
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada
| | - Amir Hatamie
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Prof. Sobouti Boulevard, P.O. Box 45195-1159, Zanjan 45137-66731, Iran
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, Gothenburg 412 96, Sweden
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3
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Hu X, Meng Z. An overview of edible foams in food and modern cuisine: Destabilization and stabilization mechanisms and applications. Compr Rev Food Sci Food Saf 2024; 23:e13284. [PMID: 38284578 DOI: 10.1111/1541-4337.13284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 11/26/2023] [Accepted: 11/30/2023] [Indexed: 01/30/2024]
Abstract
Foam, as a structured multi-scale colloidal system, is becoming increasingly popular in food because it gives a series of unique textures, structures, and appearances to foods while maintaining clean labels. Recently, developing green and healthy food-grade foaming agents, improving the stability of edible foams, and exploring the application of foam structures and new foaming agents have been the focus of foam systems. This review comprehensively introduces the destabilization mechanisms of foam and summarizes the main mechanisms controlling the foam stability and progress of different food-grade materials (small-molecular surfactants, biopolymers, and edible Pickering particles). Furthermore, the classic foam systems in food and modern cuisine, their applications, developments, and challenges are also underlined. Natural small-molecular surfactants, novel plant/microalgae proteins, and edible colloidal particles are the research hotspots of high-efficiency food-grade foam stabilizers. They have apparent differences in foam stability mechanisms, and each exerts its advantages. However, the development of foam stabilizers remains to be enriched compared with emulsions. Food foams are diverse and widely used, bringing unique enjoyment and benefit to consumers regarding sense, innovation, and health attributes. In addition to industrial inflatable foods, the foam foods in molecular gastronomy are also worthy of exploration. Moreover, edible foams may have greater potential in structured food design, 3D/4D printing, and controlled flavor release in the future. This review will provide a reference for the efficient development of functional inflatable foods and the advancement of foam technologies in modern cuisine.
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Affiliation(s)
- Xiangfang Hu
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Zong Meng
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
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4
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Li Q, Yu X, Lin J, Qiu K, Li H, Lu S. On the mechanism of enhanced foam stability by combining carboxylated cellulose nanofiber with hydrocarbon and fluorocarbon surfactants. Int J Biol Macromol 2023:125012. [PMID: 37220851 DOI: 10.1016/j.ijbiomac.2023.125012] [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: 02/04/2023] [Revised: 05/15/2023] [Accepted: 05/19/2023] [Indexed: 05/25/2023]
Abstract
The effect of carboxylated cellulose nanofiber (CCNF) on the firefighting foam stability and stabilization mechanism is investigated. The results show that equilibrium surface tension of CTAB/FC1157 solution decreases when CCNF concentration increases to 0.5 wt%, while CCNF has little effect on that of SDS/FC1157 solution. Besides, when CCNF concentration of SDS/FC1157 solution increases to 1.0 wt%, the foam initial drainage is delayed for about 3 min. Increasing CCNF concentration can slow down foam coarsening process and liquid drainage process of SDS/FC1157 and CTAB/FC1157 solutions, improving the foam stability. The foam stability enhancement of CTAB/FC1157 solution is due to the formation of bulk aggregates and the increase of viscosity. However, the foam stability enhancement of SDS/FC1157 solution may be caused by the increase of viscosity. CCNF significantly reduces the foaming ability of CTAB/FC1157 solution when CCNF concentration is >0.5 wt%. Nevertheless, the foaming ability of SDS/FC1157 solution decreases significantly when CCNF concentration reaches 3.0 wt%, and its foaming ability remains higher than CTAB/FC1157 solution. The foaming ability of SDS/FC1157 solution is mainly dominated by viscosity, while that of CTAB/FC1157 solution is dominated by viscosity and adsorption kinetics. Adding CCNF is expected to enhance the stability of firefighting foam and increase the efficiency of extinguishing fire.
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Affiliation(s)
- Qian Li
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, PR China
| | - Xiaoyang Yu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, PR China
| | - Jin Lin
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, PR China.
| | - Ke Qiu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, PR China
| | - Huan Li
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, PR China
| | - Shouxiang Lu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, PR China.
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5
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Zhou Y, Yin W, Guo Y, Qin C, Qin Y, Liu Y. Green Preparation of Lightweight, High-Strength Cellulose-Based Foam and Evaluation of Its Adsorption Properties. Polymers (Basel) 2023; 15:polym15081879. [PMID: 37112026 PMCID: PMC10146140 DOI: 10.3390/polym15081879] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/30/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
In recent years, the application scope of most cellulose-based foams is limited due to their low adsorbability and poor recyclability. In this study, a green solvent is used to extract and dissolve cellulose, and the structural stability of the solid foam is enhanced by adding a secondary liquid via the capillary foam technology, and the strength of the solid foam is improved. In addition, the effects of the addition of different gelatin concentrations on the micro-morphology, crystal structure, mechanical properties, adsorption, and recyclability of the cellulose-based foam are investigated. The results show that the cellulose-based foam structure becomes compact, the crystallinity is decreased, the disorder is increased, and the mechanical properties are improved, but its circulation capacity is decreased. When the volume fraction of gelatin is 2.4%, the mechanical properties of foam are the best. The stress of the foam is 55.746 kPa at 60% deformation, and the adsorption capacity reaches 57.061 g/g. The results can serve as a reference for the preparation of highly stable cellulose-based solid foams with excellent adsorption properties.
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Affiliation(s)
- Yongxing Zhou
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Wenbo Yin
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Yuliang Guo
- Shandong Institute of Standardization, Jinan 250000, China
| | - Chenni Qin
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Yizheng Qin
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Yang Liu
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
- Guangxi Key Laboratory of Clean Pulp and Paper and Pollution Control, Guangxi University, Nanning 530004, China
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6
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Szafraniec M, Grabias-Blicharz E, Barnat-Hunek D, Landis EN. A Critical Review on Modification Methods of Cement Composites with Nanocellulose and Reaction Conditions during Nanocellulose Production. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7706. [PMID: 36363297 PMCID: PMC9654582 DOI: 10.3390/ma15217706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Nanocellulose (NC) is a natural polymer that has driven significant progress in recent years in the study of the mechanical properties of composites, including cement composites. Impressive mechanical properties, ability to compact the cement matrix, low density, biodegradability, and hydrophilicity of the surface of nanocellulose particles (which improves cement hydration) are some of the many benefits of using NCs in composite materials. The authors briefly presented a description of the types of NCs (including the latest, little-known shapes), showing the latest developments in their manufacture and modification. Moreover, NC challenges and opportunities are discussed to reveal its hidden potential, as well as the use of spherical and square/rectangular nanocellulose to modify cement composites. Intending to emphasize the beneficial use of NC in cementitious composites, this article discusses NC as an eco-friendly, low-cost, and efficient material, particularly for recycling readily available cellulosic waste. In view of the constantly growing interest in using renewable and waste materials in a wide range of applications, the authors hope to provide progress in using nanocellulose (NC) as a modifier for cement composites. Furthermore, this review highlights a gap in research regarding the preparation of new types of NCs, their application, and their impact on the properties of cementitious composites. Finally, the authors summarize and critically evaluate the type, dosage, and application method of NC, as well as the effects of these variables on the final properties of NC-derived cement composites. Nevertheless, this review article stresses up-to-date challenges for NC-based materials as well as future remarks in light of dwindling natural resources (including building materials), and the principles of a circular economy.
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Affiliation(s)
- Małgorzata Szafraniec
- Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka 40, 20-618 Lublin, Poland
| | - Ewelina Grabias-Blicharz
- Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka 40, 20-618 Lublin, Poland
| | - Danuta Barnat-Hunek
- Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka 40, 20-618 Lublin, Poland
| | - Eric N. Landis
- Department of Civil and Environmental Engineering, University of Maine, Orono, ME 04469, USA
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7
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Wei P, Guo K, Xie Y, Huang X. Liquid Foam Stabilized by a CO 2-Responsive Surfactant and Similarly Charged Cellulose Nanofibers for Reversibly Plugging in Porous Media. ACS APPLIED MATERIALS & INTERFACES 2022; 14:37134-37148. [PMID: 35917120 DOI: 10.1021/acsami.2c08986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
CO2 foams are of great importance in oil recovery but challenging in some aspects like long-term stabilization and time-separated conflict. In this work, a stability-enhanced switchable foam was fabricated using bis-(2-hydroxyethoxy) olefine amine (BOA) and trace amounts (0.05 wt %) of cationic-modified cellulose nanofibers (CCNFs). The CCNF was developed using sequentially functionalized CNF with diamine groups, which were essential to promote the aqueous dispersibility and a key for strengthening the stabilization of foam. The combination of similarly charged CCNFs and BOA in the presence of CO2 contributed to both surface activity and viscoelasticity. It was demonstrated that CCNFs were entangled and stacked to form the compact films and possessed the ability to costabilize the lamellae, as observed by microscopic studies. In addition, the intermolecular H-bonds were promoted in the binary system after being protonated by CO2 and thus balancing the electrostatic forces, as explored by spectroscopy characterizations. The soft fibrous structure of the CCNF was also capable of wrapping gas bubbles in the form of a functional membrane with both low gas permeability and high surface potential, which slowed down the coarsening and coalescence. Of particular interest is that the reversible protonation state of CCNF-BOA complexes upon the alternate treatment with CO2/N2 led to reversible fast foaming/defoaming, which would be beneficial to construct the steerable plugging in the sand pack. This work is expected to provide a new direction and application of the CO2 responsive foam stabilized by similarly charged nanocellulose fibers in oilfield development.
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Affiliation(s)
- Peng Wei
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources & MOE Key Laboratory of Oil and Gas Fine Chemicals, College of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China
| | - Kaidi Guo
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources & MOE Key Laboratory of Oil and Gas Fine Chemicals, College of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China
| | - Yahong Xie
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources & MOE Key Laboratory of Oil and Gas Fine Chemicals, College of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China
| | - Xueli Huang
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources & MOE Key Laboratory of Oil and Gas Fine Chemicals, College of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China
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8
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Lu Y, Zhang F, Lu X, Jiang H, Hu W, Liu L, Gai L. Electrolytes with Micelle-Assisted Formation of Directional Ion Transport Channels for Aqueous Rechargeable Batteries with Impressive Performance. NANOMATERIALS 2022; 12:nano12111920. [PMID: 35683775 PMCID: PMC9182126 DOI: 10.3390/nano12111920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 05/26/2022] [Accepted: 05/27/2022] [Indexed: 11/24/2022]
Abstract
Low-cost and ecofriendly electrolytes with suppressed water reactivity and raised ionic conductivity are desirable for aqueous rechargeable batteries because it is a dilemma to decrease the water reactivity and increase the ionic conductivity at the same time. In this paper, Li2SO4–Na2SO4–sodium dodecyl sulfate (LN-SDS)-based aqueous electrolytes are designed, where: (i) Na+ ions dissociated from SDS increase the charge carrier concentration, (ii) DS−/SO42− anions and Li+/Na+ cations are capable of trapping water molecules through hydrogen bonding and/or hydration, resulting in a lowered melting point, (iii) Li+ ions reduce the Krafft temperature of LN-SDS, (iv) Na+ and SO42− ions increase the low-temperature electrolyte ionic conductivity, and (v) SDS micelle clusters are orderly aggregated to form directional ion transport channels, enabling the formation of quasi-continuous ion flows without (r.t.) and with (≤0 °C) applying voltage. The screened LN-SDS is featured with suppressed water reactivity and high ionic conductivity at temperatures ranging from room temperature to −15 °C. Additionally, NaTi2(PO4)3‖LiMn2O4 batteries operating with LN-SDS manifest impressive electrochemical performance at both room temperature and −15 °C, especially the cycling stability and low-temperature performance.
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Affiliation(s)
- Yanmin Lu
- Engineering & Technology Center of Electrochemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China; (Y.L.); (F.Z.); (H.J.); (L.L.)
| | - Fengxiang Zhang
- Engineering & Technology Center of Electrochemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China; (Y.L.); (F.Z.); (H.J.); (L.L.)
| | - Xifeng Lu
- School of Energy Materials, Shandong Polytechnic College, Jining 172000, China;
| | - Haihui Jiang
- Engineering & Technology Center of Electrochemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China; (Y.L.); (F.Z.); (H.J.); (L.L.)
| | - Wei Hu
- Engineering & Technology Center of Electrochemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China; (Y.L.); (F.Z.); (H.J.); (L.L.)
- Correspondence: (W.H.); (L.G.)
| | - Libin Liu
- Engineering & Technology Center of Electrochemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China; (Y.L.); (F.Z.); (H.J.); (L.L.)
| | - Ligang Gai
- Engineering & Technology Center of Electrochemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China; (Y.L.); (F.Z.); (H.J.); (L.L.)
- Correspondence: (W.H.); (L.G.)
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9
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Raj S, Krishnan JM, Ramamurthy K. Influence of admixtures on the characteristics of aqueous foam produced using a synthetic surfactant. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Church TL, Kriechbaum K, Schiele C, Apostolopoulou-Kalkavoura V, Hadi SE, Bergström L. A Stiff, Tough, and Thermally Insulating Air- and Ice-Templated Plant-Based Foam. Biomacromolecules 2022; 23:2595-2602. [PMID: 35621041 PMCID: PMC9198970 DOI: 10.1021/acs.biomac.2c00313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
![]()
By forming and directionally
freezing an aqueous foam containing
cellulose nanofibrils, methylcellulose, and tannic acid, we produced
a stiff and tough anisotropic solid foam with low radial thermal conductivity.
Along the ice-templating direction, the foam was as stiff as nanocellulose–clay
composites, despite being primarily methylcellulose by mass. The foam
was also stiff perpendicular to the direction of ice growth, while
maintaining λr < 25 mW m–1 K–1 for a relative humidity (RH) up to 65% and <30
mW m–1 K–1 at 80% RH. This work
introduces the tandem use of two practical techniques, foam formation
and directional freezing, to generate a low-density anisotropic material,
and this strategy could be applied to other aqueous systems where
foam formation is possible.
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Affiliation(s)
- Tamara L Church
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm 10691, Sweden
| | - Konstantin Kriechbaum
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm 10691, Sweden
| | - Carina Schiele
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm 10691, Sweden
| | | | - Seyed Ehsan Hadi
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm 10691, Sweden.,Wallenberg Wood Science Center, Department of Materials and Environmental Chemistry, Stockholm University, Stockholm 10691, Sweden
| | - Lennart Bergström
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm 10691, Sweden
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11
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12
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Liu C, Zheng Z, Liu Y. Effects of natural waxes on the interfacial behavior, structural properties and foam stabilization of aerated emulsions. Food Funct 2022; 13:8860-8870. [DOI: 10.1039/d2fo01670b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aerated emulsions have widespread applications in food industry. However, the poor stability of aerated emulsions remains a major challenge due to their inherent thermodynamic instability. Herein, a novel strategy to...
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13
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Parajuli S, Ureña-Benavides EE. Fundamental aspects of nanocellulose stabilized Pickering emulsions and foams. Adv Colloid Interface Sci 2022; 299:102530. [PMID: 34610863 DOI: 10.1016/j.cis.2021.102530] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/15/2021] [Accepted: 09/25/2021] [Indexed: 11/26/2022]
Abstract
Nanocelluloses in recent years have garnered a lot of attention for their use as stabilizers of liquid-liquid and gas-liquid interfaces. Both cellulose nanocrystals (CNCs) and cellulose nanofibers (CNFs) have been used extensively in multiple studies to prepare emulsions and foams. However, there is limited literature available that systematically discusses the mechanisms that affect the ability of nanocelluloses (modified and unmodified) to stabilize different types of interfaces. This review briefly discusses key factors that affect the stability of Pickering emulsions and foams and provides a detailed and systematic analysis of the current state knowledge on factors affecting the stabilization of liquid-liquid and gas-liquid interfaces by nanocelluloses. The review also discusses the effect of nanocellulose surface modifications on mechanisms driving the Pickering stabilization of these interfaces.
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14
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Abidnejad R, Beaumont M, Tardy BL, Mattos BD, Rojas OJ. Superstable Wet Foams and Lightweight Solid Composites from Nanocellulose and Hydrophobic Particles. ACS NANO 2021; 15:19712-19721. [PMID: 34784178 PMCID: PMC8717629 DOI: 10.1021/acsnano.1c07084] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Colloids are suitable options to replace surfactants in the formation of multiphase systems while simultaneously achieving performance benefits. We introduce synergetic combination of colloids for the interfacial stabilization of complex fluids that can be converted into lightweight materials. The strong interactions between high aspect ratio and hydrophilic fibrillated cellulose (CNF) with low aspect ratio hydrophobic particles afford superstable Pickering foams. The foams were used as a scaffolding precursor of porous, solid materials. Compared to foams stabilized by the hydrophobic particles alone, the introduction of CNF significantly increased the foamability (by up to 350%) and foam lifetime. These effects are ascribed to the fibrillar network formed by CNF. The CNF solid fraction regulated the interparticle interactions in the wet foam, delaying or preventing drainage, coarsening, and bubble coalescence. Upon drying, such a complex fluid was transformed into lightweight and strong architectures, which displayed properties that depended on the surface energy of the CNF precursor. We show that CNF combined with hydrophobic particles universally forms superstable complex fluids that can be used as a processing route to synthesize strong composites and lightweight structures.
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Affiliation(s)
- Roozbeh Abidnejad
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Marco Beaumont
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
- Department
of Chemistry, Institute of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences, 3430 Tulln, Austria
| | - Blaise L. Tardy
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Bruno D. Mattos
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Orlando J. Rojas
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland
- Bioproducts
Institute, Department of Chemical and Biological Engineering, Department
of Chemistry and Department of Wood Science, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z4, Canada
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15
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Hjelt T, Ketoja JA, Kiiskinen H, Koponen AI, Pääkkönen E. Foam forming of fiber products: a review. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2020.1869035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Tuomo Hjelt
- VTT Technical Research Centre of Finland Ltd, Espoo, Finland
| | - Jukka A. Ketoja
- VTT Technical Research Centre of Finland Ltd, Espoo, Finland
| | - Harri Kiiskinen
- VTT Technical Research Centre of Finland Ltd, Espoo, Finland
| | | | - Elina Pääkkönen
- VTT Technical Research Centre of Finland Ltd, Espoo, Finland
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16
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MFC/NFC-Based Foam/Aerogel for Production of Porous Materials: Preparation, Properties and Applications. MATERIALS 2020; 13:ma13235568. [PMID: 33297365 PMCID: PMC7729816 DOI: 10.3390/ma13235568] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/28/2020] [Accepted: 12/03/2020] [Indexed: 11/17/2022]
Abstract
Nanofibrillated cellulose and microfibrillated cellulose are potential raw materials separated from plant fibers with a high aspect ratio and excellent mechanical properties, which can be applied in various fields (packaging, medicine, etc.). They have unique advantages in the preparation of aerogels and foams, and have attracted widespread attention in recent years. Cellulose-based porous materials have good biodegradability and biocompatibility, while high porosity and high specific surface area endow them with strong mechanical properties and liquid retention performance, which can be used in wall construction, sewage treatment and other fields. At present, the preparation method of this material has been widely reported, however, due to various process problems, the actual production has not been realized. In this paper, we summarize the existing technical problems and main solutions; in the meantime, two stable systems and several drying processes are described, and the application potential of cellulose-based porous materials in the future is described, which provides a reference for subsequent research.
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17
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Wei Y, Xie Y, Cai Z, Guo Y, Wu M, Wang P, Li R, Zhang H. Interfacial and emulsion characterisation of chemically modified polysaccharides through a multiscale approach. J Colloid Interface Sci 2020; 580:480-492. [DOI: 10.1016/j.jcis.2020.07.048] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 07/08/2020] [Accepted: 07/10/2020] [Indexed: 01/17/2023]
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18
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Facchine EG, Spontak RJ, Rojas OJ, Khan SA. Shear-Dependent Structures of Flocculated Micro/Nanofibrillated Cellulose (MNFC) in Aqueous Suspensions. Biomacromolecules 2020; 21:3561-3570. [DOI: 10.1021/acs.biomac.0c00586] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
| | | | - Orlando J. Rojas
- Department of Chemical & Biological Engineering, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3
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19
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Trache D, Tarchoun AF, Derradji M, Hamidon TS, Masruchin N, Brosse N, Hussin MH. Nanocellulose: From Fundamentals to Advanced Applications. Front Chem 2020; 8:392. [PMID: 32435633 PMCID: PMC7218176 DOI: 10.3389/fchem.2020.00392] [Citation(s) in RCA: 273] [Impact Index Per Article: 68.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 04/15/2020] [Indexed: 12/14/2022] Open
Abstract
Over the past few years, nanocellulose (NC), cellulose in the form of nanostructures, has been proved to be one of the most prominent green materials of modern times. NC materials have gained growing interests owing to their attractive and excellent characteristics such as abundance, high aspect ratio, better mechanical properties, renewability, and biocompatibility. The abundant hydroxyl functional groups allow a wide range of functionalizations via chemical reactions, leading to developing various materials with tunable features. In this review, recent advances in the preparation, modification, and emerging application of nanocellulose, especially cellulose nanocrystals (CNCs), are described and discussed based on the analysis of the latest investigations (particularly for the reports of the past 3 years). We start with a concise background of cellulose, its structural organization as well as the nomenclature of cellulose nanomaterials for beginners in this field. Then, different experimental procedures for the production of nanocelluloses, their properties, and functionalization approaches were elaborated. Furthermore, a number of recent and emerging uses of nanocellulose in nanocomposites, Pickering emulsifiers, wood adhesives, wastewater treatment, as well as in new evolving biomedical applications are presented. Finally, the challenges and opportunities of NC-based emerging materials are discussed.
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Affiliation(s)
- Djalal Trache
- UER Procédés Energétiques, Ecole Militaire Polytechnique, Bordj El-Bahri, Algeria
| | - Ahmed Fouzi Tarchoun
- UER Procédés Energétiques, Ecole Militaire Polytechnique, Bordj El-Bahri, Algeria
| | - Mehdi Derradji
- UER Procédés Energétiques, Ecole Militaire Polytechnique, Bordj El-Bahri, Algeria
| | - Tuan Sherwyn Hamidon
- Materials Technology Research Group, School of Chemical Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - Nanang Masruchin
- Research Center for Biomaterials, Indonesian Institute of Sciences (LIPI), Jakarta, Indonesia
| | - Nicolas Brosse
- Laboratoire d'Etude et de Recherche sur le MAtériau Bois (LERMAB), Faculté des Sciences et Techniques, Université de Lorraine, Vandœuvre-lès-Nancy, France
| | - M. Hazwan Hussin
- Materials Technology Research Group, School of Chemical Sciences, Universiti Sains Malaysia, Penang, Malaysia
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20
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Bertsch P, Fischer P. Adsorption and interfacial structure of nanocelluloses at fluid interfaces. Adv Colloid Interface Sci 2020; 276:102089. [PMID: 31887576 DOI: 10.1016/j.cis.2019.102089] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 01/12/2023]
Abstract
Nanocelluloses (NCs), more specifically cellulose nanocrystals and nanofibrils, are a green alternative for the stabilization of fluid interfaces. The adsorption of NCs at oil-water interfaces facilitates the formation of stable and biocompatible Pickering emulsions. In contrast, unmodified NCs are not able to stabilize foams. As a consequence, NCs are often hydrophobized by covalent modifications or adsorption of surfactants, allowing also the stabilization of foams or functional inverse, double, and stimuli-responsive emulsions. Although the interfacial stabilization by NCs is readily exploited, the driving force of adsorption and stabilization mechanisms remained long unclear. Here, we summarize the recent advances in the understanding of NC adsorption regarding kinetics, isotherms, and energetic aspects, as well as their interfacial structure, surface coverage, and contact angle. We thereby distinguish unmodified NCs, covalently modified NCs, and surfactant enhanced adsorption.
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