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Zhang Y, Cao Z, Luo Z, Li W, Fu T, Qiu W, Lai Z, Cheng J, Yang H, Ma W, Liu C. Facile fabrication of underwater superoleophobic membrane based on polyacrylamide/chitosan hydrogel modified metal mesh for oil–water separation. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20210923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yang Zhang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu China
| | - Zheng Cao
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu China
- Changzhou University Huaide College Jingjiang Jiangsu China
- College of Hua Loogeng Changzhou University Changzhou Jiangsu China
- National Experimental Demonstration Center for Materials Science and Engineering Changzhou University Changzhou Jiangsu China
| | - Zili Luo
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu China
| | - Wenjun Li
- College of Hua Loogeng Changzhou University Changzhou Jiangsu China
| | - Tao Fu
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu China
| | - Wang Qiu
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu China
| | - Zhirong Lai
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu China
| | - Junfeng Cheng
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu China
| | - Haicun Yang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu China
| | - Wenzhong Ma
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu China
| | - Chunlin Liu
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Changzhou University Changzhou Jiangsu China
- Changzhou University Huaide College Jingjiang Jiangsu China
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Schutzius TM, Walker C, Maitra T, Schönherr R, Stamatopoulos C, Jung S, Antonini C, Eghlidi H, Fife JL, Patera A, Derome D, Poulikakos D. Detergency and Its Implications for Oil Emulsion Sieving and Separation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:4250-4259. [PMID: 28388096 DOI: 10.1021/acs.langmuir.7b00188] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Separating petroleum hydrocarbons from water is an important problem to address in order to mitigate the disastrous effects of hydrocarbons on aquatic ecosystems. A rational approach to address the problem of marine oil-water separation is to disperse the oil with the aid of surfactants in order to minimize the formation of large slicks at the water surface and to maximize the oil-water interfacial area. Here we investigate the fundamental wetting and transport behavior of such surfactant-stabilized droplets and the flow conditions necessary to perform sieving and separation of these stabilized emulsions. We show that, for water-soluble surfactants, such droplets are completely repelled by a range of materials (intrinsically underwater superoleophobic) due to the detergency effect; therefore, there is no need for surface micro-/nanotexturing or chemical treatment to repel the oil and prevent fouling of the filter. We then simulate and experimentally investigate the effect of emulsion flow rate on the transport and impact behavior of such droplets on rigid meshes to identify the minimum pore opening (w) necessary to filter a droplet with a given diameter (d) in order to minimize the pressure drop across the mesh-and therefore maximize the filtering efficiency, which is strongly dependent on w. We define a range of flow conditions and droplet sizes where minimum droplet deformation is to be expected and therefore find that the condition of w ≈ d is sufficient for efficient separation. With this new understanding, we demonstrate the use of a commercially available filter-without any additional surface engineering or functionalization-to separate oil droplets (d < 100 μm) from a surfactant-stabilized emulsion with a flux of ∼11,000 L m-2 h-1 bar-1. We believe these findings can inform the design of future oil separation materials.
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Affiliation(s)
- Thomas M Schutzius
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich , Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Christopher Walker
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich , Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Tanmoy Maitra
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich , Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Romy Schönherr
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich , Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Christos Stamatopoulos
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich , Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Stefan Jung
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich , Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Carlo Antonini
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich , Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Hadi Eghlidi
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich , Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Julie L Fife
- Swiss Light Source, Paul Scherrer Institut , CH-5232 Villigen PSI, Switzerland
| | - Alessandra Patera
- Swiss Light Source, Paul Scherrer Institut , CH-5232 Villigen PSI, Switzerland
| | - Dominique Derome
- Laboratory for Multiscale Studies in Building Physics, Swiss Federal Laboratories for Materials Science and Technology-Empa , Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Dimos Poulikakos
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich , Sonneggstrasse 3, CH-8092 Zurich, Switzerland
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Hu D, Li L, Li Y, Yang C. Restructuring the surface of polyurethane resin enforced filter media to separate surfactant stabilized oil-in-water emulsions via coalescence. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.07.051] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Zhang J, Li Y, Bao M, Yang X, Wang Z. Facile Fabrication of Cyclodextrin-Modified Magnetic Particles for Effective Demulsification from Various Types of Emulsions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:8809-8816. [PMID: 27459590 DOI: 10.1021/acs.est.6b01941] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Effective oil-water phase separation from various emulsions, especially those stabilized by surfactant, is of great importance. Although superhydrophobic and superoleophilic materials have attracted considerable attention in recent years, they are incapable of directly separating all types of oil-water mixtures. To separate various types of emulsions, one of the most important features of particles is that they can be dispersed in the continuous phase for delivery and target dispersed phases. In this study, cyclodextrin-modified magnetic composite particles (M-CDs) have been fabricated for this goal, based on their special interfacial activity and response to an external magnetic field. Though M-CDs are hydrophilic, the intelligent M-CDs can switch from hydrophilicity to hydrophobicity spontaneously, due to the formation of CD-oil inclusion complexes (ICs) at the oil-water interface. Physicochemical characterization reveals that M-CDs can adsorb at the oil-water interface and locate at the droplet surface as an effective Pickering emulsifier. By applying an external magnetic field, M-CDs are removed from the droplet surface and a rapid oil-water phase separation occurs. Our M-CDs can demulsify, for the first time, surfactant-free or surfactant-stabilized oil-in-water (O/W) and water-in-oil (W/O) emulsions directly, with high separation efficiency. Furthermore, the recycled MNPs still show high demulsification efficiency. In view of the sustainability of cyclodextrin and effective recycling ability of MNPs, M-CDs provides a new opportunity to develop an environmentally friendly interfacial material for practical applications in wastewater treatment.
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Affiliation(s)
- Jianrui Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China , 238 Songling Road, Qingdao, 266100, Shandong Province, China
| | - Yiming Li
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China , 238 Songling Road, Qingdao, 266100, Shandong Province, China
| | - Mutai Bao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China , 238 Songling Road, Qingdao, 266100, Shandong Province, China
| | - Xiaolong Yang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China , 238 Songling Road, Qingdao, 266100, Shandong Province, China
| | - Zhining Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China , 238 Songling Road, Qingdao, 266100, Shandong Province, China
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Kota AK, Kwon G, Choi W, Mabry JM, Tuteja A. Hygro-responsive membranes for effective oil–water separation. Nat Commun 2012; 3:1025. [DOI: 10.1038/ncomms2027] [Citation(s) in RCA: 903] [Impact Index Per Article: 75.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Accepted: 07/27/2012] [Indexed: 12/22/2022] Open
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