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Chen X, Zhang D, Guan Y, Chen D, Ge H, Wang Z, Bao M, Li Y. Joule Heating-Assisted Crude Oil Purification by a Poly(pyrrole)-Modified Microfibril Cellulose Membrane. ACS Appl Mater Interfaces 2024; 16:2624-2636. [PMID: 38166459 DOI: 10.1021/acsami.3c15498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Using membrane materials to purify viscous watery oil from industrial production processes and accidental oil spills is of great importance but still challenging. Based on the excellent electrical conductivity and electric-thermal conversion of poly(pyrrole) (PPy), a hydrophobic PPy-modified micro-fibrillated cellulose membrane (P-CP) was successfully prepared. The size of the P-CP membrane can be customized to meet specific requirements. In this research, the membrane diameter is capable of reaching 24 cm. By applying a voltage ranging from 0 to 12 V, the surface temperature of the P-CP membrane can be elevated to roughly 120 °C. After 10 cycles of heating and cooling under 12 V voltage, the electric-thermal curves, surface hydrophobicity, and pore structure of P-CP membrane can remain stable, which suggests remarkable electric-thermal stability and reliability despite prolonged operation. The P-CP membrane shows good linearity between voltage and current (R2 = 0.997) and easy temperature control from room temperature to ∼120 °C at low supply voltage (0-12 V). Under the condition of 12 V power supply and self-gravity, the separation flux of the P-CP membrane for water-in-oil (W/O) emulsions (kerosene, diesel) is 2-3 times higher than that at room temperature, and the separation efficiency is also improved. Importantly, the P-CP membrane shows excellent separation performance for high viscosity water-in-crude oil emulsions, with a separation flux of 40 L m-2 h-1 by gravity. Compared to the situation without electricity, the separation flux of water-in-crude oil emulsion has increased four-fold. The joule heating of the P-CP membrane expands its service time and application scenarios, demonstrating its great application prospects in actual viscous oil-water emulsion separation.
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Affiliation(s)
- Xiuping Chen
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, P. R. China
- College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, P. R. China
| | - Dan Zhang
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, P. R. China
- College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, P. R. China
| | - Yihao Guan
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, P. R. China
- College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, P. R. China
| | - Dafan Chen
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, P. R. China
- College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, P. R. China
| | - Hongwei Ge
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, P. R. China
- College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, P. R. China
| | - Zhining Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, 266237 Qingdao, P. R. China
| | - Mutai Bao
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, P. R. China
- College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, P. R. China
| | - Yiming Li
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, P. R. China
- College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, P. R. China
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Liu Y, Bai T, Zhao S, Zhang Z, Feng M, Zhang J, Li D, Feng L. Sugarcane-based superhydrophilic and underwater superoleophobic membrane for efficient oil-in-water emulsions separation. J Hazard Mater 2024; 461:132551. [PMID: 37722321 DOI: 10.1016/j.jhazmat.2023.132551] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/31/2023] [Accepted: 09/11/2023] [Indexed: 09/20/2023]
Abstract
The development of ecological, low cost, easy preparation, especially high performance materials for emulsions separation is of great importance due to the rise in pollution of oil-water emulsions from industrial production and domestic waste. Straws as agricultural wastes, including plenty of hydrophilic groups and multi-level pore structures, can be prepared as biomass membranes for oil-water emulsion separation. Herein, a novel super-hydrophilic sugarcane-based (SHS) membrane was prepared using a facile and eco-friendly method including chemical treatment and freeze-drying. The as-prepared SHS membrane has unique wettabilities due to the hydrophilic property of the internal cellulose and the micro-nano pores, including superhydrophilicity (water contact angle of 0°) and underwater superoleophobicity (underwater oil contact angles of over 150°). The SHS membrane has good durability and stability against ultraviolet (UV) irradiation, corrosion by acids and alkalis, mechanical abrasion and especially mould adhesion. Importantly, the SHS membrane can be used for separation of various oil-in-water emulsions, and exhibits excellent separation performances such as high separation efficiency (> 99 %) and good separation flux (above 891 L m-2 h-1 bar-1). The SHS membrane also exhibits excellent recyclability over 10 continuous separation cycles. Furthermore, the SHS membrane can be utilized to selectively absorb water from oils as a water absorbent material. Hence, SHS membrane is a promising and practical material for applications in treatment of wastewater containing oil-water emulsions.
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Affiliation(s)
- Yanhua Liu
- School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
| | - Tianbin Bai
- School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Shixing Zhao
- School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Zhuanli Zhang
- School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Meijun Feng
- School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Jianbin Zhang
- School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Dianming Li
- School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Libang Feng
- School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
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Guo T, Chi H, Wei Z, Zhao Y. Under-Oil Superhydrophilic/Superhydrophobic Janus Nanofibrous Membrane for Highly Efficient Separation of Surfactant-Stabilized Water-in-Oil Emulsions. Langmuir 2023; 39:16668-16675. [PMID: 37946457 DOI: 10.1021/acs.langmuir.3c02730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Highly efficient separation of surfactant-stabilized water-in-oil emulsions with both a high separation efficiency and high permeation flux is still challenging. In this work, an under-oil superhydrophilic/superhydrophobic Janus membrane was fabricated by combining an electrospun poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) membrane and its modified membrane composited with poly(ethylene glycol) diacrylate (PEGDA). The incorporation of PEGDA is realized by in situ ultraviolet (UV)-initiated polymerization during the electrospinning process, and it endows the upper layer with unique under-oil superhydrophilicity that is very important for the demulsification of water-in-oil emulsions. The under-oil superhydrophobic lower layer serves to block the water and also can promote the permeation flux, because of its oil-absorbing ability. For surfactant-stabilized water-in-n-hexane emulsion (water content of 1 wt %), such a Janus membrane exhibits outstanding separation performance with a separation efficiency of >99.95% and permeation flux of >25 000 L m-2 h-1. Moreover, the Janus membrane shows excellent reusability and high applicability for water-in-diesel, water-in-hexadecane, and water-in-petroleum ether emulsions with separation efficiencies of 99.63%, 99.80% and 99.82%, respectively. These features make the Janus membrane a promising candidate as a separation membrane for surfactant-stabilized water-in-oil emulsions.
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Affiliation(s)
- Tao Guo
- College of Textile and Clothing Engineering, National Engineering Laboratory for Modern Silk, Soochow University, Suzhou 215123, China
| | - Huanjie Chi
- College of Textile and Clothing Engineering, National Engineering Laboratory for Modern Silk, Soochow University, Suzhou 215123, China
| | - Zhenzhen Wei
- College of Textile and Clothing Engineering, National Engineering Laboratory for Modern Silk, Soochow University, Suzhou 215123, China
| | - Yan Zhao
- College of Textile and Clothing Engineering, National Engineering Laboratory for Modern Silk, Soochow University, Suzhou 215123, China
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Saberi Afshar S, Mohammadi Ziarani G, Mohajer F, Badiei A. Fumed-Si-Pr-PNS as a Photoluminescence sensor for the Detection of Hg 2+ in Aqueous Media. J Fluoresc 2023:10.1007/s10895-023-03417-7. [PMID: 37707711 DOI: 10.1007/s10895-023-03417-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 08/24/2023] [Indexed: 09/15/2023]
Abstract
Fumed silica was functionalized by piperazine followed by the reaction with 2- naphthalenesulfonyl chloride to prepare Fumed-Si-Pr-Piperazine-Naphthalenesulfonyl chloride (Fumed-Si-Pr-PNS), which was characterized to demonstrate the effective attachment on the surface of fumed silica. The optical sensing ability of Fumed-Si-Pr-PNS was studied via diverse metal ions in H2O solution by photoluminescence spectroscopy. The results showed that Fumed-Si-Pr-PNS detected selectively Hg2+ ions. The prepared sensor showed almost high absorption at different pH for Hg ion. After drawing various diagrams, The detection limits were calculated at about 12.45 × 10-6 M for Hg2+.
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Affiliation(s)
- Sepideh Saberi Afshar
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, Tehran, Iran
| | | | - Fatemeh Mohajer
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, Tehran, Iran
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
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Bai X, Yuan Z, Lu C, Zhan H, Ge W, Li W, Liu Y. Recent advances in superwetting materials for separation of oil/water mixtures. Nanoscale 2023; 15:5139-5157. [PMID: 36853237 DOI: 10.1039/d2nr07088j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Engineering surfaces or membranes that allow an efficient oil/water separation is highly desired in a wide spectrum of applications ranging from oily wastewater discharge to offshore oil spill accidents. Recent advances in biomimetics, manufacturing, and characterization techniques have led to remarkable progress in the design of various superwetting materials with special wettability. In spite of exciting progress, formulating a strategy robust enough to guide the design and fabrication of separating surfaces remains a daunting challenge. In this review, we first present an overview of the wettability theory to elucidate how to control the surface morphology and chemistry to regulate oil/water separation. Then, parallel approaches are considered for discussing the separation mechanisms according to different oil/water mixtures, and three separation types were identified including filtration, adsorption and other separation types. Finally, perspectives on the challenges and future research directions in this research area are briefly discussed.
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Affiliation(s)
- Xiangge Bai
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Zichao Yuan
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Chenguang Lu
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Haiyang Zhan
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Wenna Ge
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Wenzong Li
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Yahua Liu
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
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Wang D, Huang H, Lv Y, Chen K, Zhong Y, Chen P, Min F, Xie G, Dong Z, Chu Z. A Gemini-Type Superwettable Separator for Consecutive Purification of Water and Oil Phases from Oil-Water Mixtures and Emulsions. ChemSusChem 2023; 16:e202201932. [PMID: 36398691 DOI: 10.1002/cssc.202201932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/11/2022] [Indexed: 06/16/2023]
Abstract
Oil pollution results from daily activities and a variety of industries have caused not only severe environmental problems but also wastage of valuable petrochemical resources. Separation based on superwettable materials holds promise; however, practical applications of a single type of superwettable materials were often limited due to their ability in treatment of complicated oil-water systems. Herein, a Gemini-type separator was created through the cooperation of two kinds of superwettable sand particles with opposite wettability, i. e., one is superhydrophobic whereas the other is superhydrophilic. Cooperatively by the two types of superwettable sand, consecutive separation and purification of both water and oil phases from complicated oil-water systems (e. g., water mixed with a lighter or denser oil, water emulsified in oil, oil emulsified in water, and/or a combination of them in one batch) could be achieved with high flux and superior efficiency just in one single operation unit.
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Affiliation(s)
- Deqi Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of, Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Haikang Huang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of, Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Yongli Lv
- Research Institute of Petroleum Engineering, Shengli Oil Field, China Petroleum & Chemical Corporation (SINOPEC), Dongying, 257000, P. R. China
| | - Kai Chen
- Petroleum Exploration and Production Research Institute, China Petroleum & Chemical Corporation (SINOPEC), Beijing, 100083, P. R. China
| | - Yanlei Zhong
- Research Institute of Petroleum Engineering, Shengli Oil Field, China Petroleum & Chemical Corporation (SINOPEC), Dongying, 257000, P. R. China
| | - Peisheng Chen
- Research Institute of Petroleum Engineering, Shengli Oil Field, China Petroleum & Chemical Corporation (SINOPEC), Dongying, 257000, P. R. China
| | - Fan Min
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of, Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Ganhua Xie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of, Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Zhichao Dong
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zonglin Chu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of, Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
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7
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Wu J, Cui Z, Yu Y, Han H, Tian D, Hu J, Qu J, Cai Y, Luo J, Li J. A 3D smart wood membrane with high flux and efficiency for separation of stabilized oil/water emulsions. J Hazard Mater 2023; 441:129900. [PMID: 36096060 DOI: 10.1016/j.jhazmat.2022.129900] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/08/2022] [Accepted: 08/31/2022] [Indexed: 06/15/2023]
Abstract
Oily sewage discharged from indiscriminate industrial and frequent oil spills have become a serious global problem. There is an urgent need to separate stable oil/water emulsions by efficient and environmentally friendly methods. Membrane separation technology has the advantages of low energy consumption and low cost, thus is an effective solution to the problems of oily wastewater. However, the manufacture of multifunctional membranes with high efficiency, high flux and self-cleaning using renewable materials remains a challenge. Herein, three-dimensional (3D) smart membranes with switchable superhydrophobic-hydrophilic surfaces were prepared by grafting photo-responsive poly-spiropyran (PSP) on wood-based substrates via surface atom transfer radical polymerization. This novel membrane can efficiently separate stabilized water-in-oil and oil-in-water emulsions due to reversible hydrophilic-hydrophobic transition by switching UV and visible light irradiation. Remarkably, after immobilization, the PSP grafted on the wood substrate exhibited a faster photo response effect than the free spiropyran (SP). More importantly, the prepared 3D smart membranes showed exceptional high flux (4392 L•m-2•h-1) and efficiency (above 99.99 %), good cycle stability (99.99 % after 12 times) and durability (available for at least 60 days) for the separation of surfactant-stabilized water-in-oil emulsions. This work opens a new avenue for the design of functional biomass-derived membranes for efficient and sustainable oily wastewater treatment with high flux, easy scale-up, and green regeneration.
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Affiliation(s)
- Jianfei Wu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, PR China
| | - Ziwei Cui
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, PR China
| | - Yang Yu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, PR China
| | - He Han
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, PR China
| | - Dan Tian
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, PR China
| | - Jundie Hu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Jiafu Qu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Yahui Cai
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, PR China.
| | - Jianlin Luo
- Guizhou Provincial Engineering Research Center for Biological Resources Protection and Effificient Utilization of the Mountainous Region, Guiyang University, Guiyang 550005, PR China.
| | - Jianzhang Li
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, PR China; Key Laboratory of Wood-Based Materials Science and Utilization, Beijing Forestry University, No. 35 Tsinghua East Road, Haidian District, Beijing 100083, PR China.
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Wang CF, Huang XY, Lin HP, Chen JK, Tsai HC, Hung WS, Hu CC, Lai JY. Sustainable, biocompatible, and mass-producible superwetting water caltrop shell biochars for emulsion separations. J Hazard Mater 2022; 439:129567. [PMID: 36104894 DOI: 10.1016/j.jhazmat.2022.129567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/23/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
The separation of oily wastewater, specifically emulsions, is a crucial global issue. Possible strategies for the efficient separation of emulsified oil/water mixtures through sustainable and environmentally friendly materials have recently drawn considerable attention. In our study, we prepared superwetting water caltrop shell biochar (WCSB) via a top-lit-updraft carbonization procedure. The as-prepared WCSB was characterized by superhydrophilicity, underwater superoleophobicity, underoil superhydrophilicity, and underoil water adsorption ability. Because of its superwetting properties, WCSB was used for the separation of both surfactant-stabilized oil-in-water emulsions (SOIWEs) and surfactant-stabilized water-in-oil emulsions (SWIOEs) with very high fluxes (up to 74,700 and 241,000 L m-2 h-1 bar-1 for SOIWE and SWIOE, respectively). The separation performances were excellent, with oil contents in all SOIWE filtrates lower than 10 ppm and oil purities in all SWIOE filtrates higher than 99.99 wt%. Moreover, WCSB was applied to separate dye-spiked emulsions. Due to their high emulsion separation ability, sustainability, good biocompatibility, and ease of mass production, the as-prepared WCSBs have notable potential for utilitarian applications.
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Affiliation(s)
- Chih-Feng Wang
- Graduate Institute of Applied Science and Technology, Advanced Membrane Materials Research Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan.
| | - Xin-Yu Huang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Hong-Ping Lin
- Department of Chemistry, National Cheng Kung University, Tainan, Taiwan.
| | - Jem-Kun Chen
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Hsieh-Chih Tsai
- Graduate Institute of Applied Science and Technology, Advanced Membrane Materials Research Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Wei-Song Hung
- Graduate Institute of Applied Science and Technology, Advanced Membrane Materials Research Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Chien-Chieh Hu
- Graduate Institute of Applied Science and Technology, Advanced Membrane Materials Research Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Juin-Yih Lai
- Graduate Institute of Applied Science and Technology, Advanced Membrane Materials Research Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan; R&D Centre for Membrane Technology, Chung Yuan University, Taoyuan 320, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 320, Taiwan
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Di W, Zhao C, Geng T, Sun Q, Xu Z, Sun D. Probing the state of water in oil-based drilling fluids. Colloids Surf A Physicochem Eng Asp 2022; 651:129770. [DOI: 10.1016/j.colsurfa.2022.129770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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He H, Liu Y, Zhu Y, Zhang TC, Yuan S. Underoil superhydrophilic CuC2O4@Cu-MOFs core-shell nanosheets-coated copper mesh membrane for on-demand emulsion separation and simultaneous removal of soluble dye. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Dong K, Bian L, Liu Y, Guan Z. Superhydrophobic coating based on organic/inorganic double component adhesive and functionalized nanoparticles with good durability and anti-corrosion for protection of galvanized steel. Colloids Surf A Physicochem Eng Asp 2022; 640:128360. [DOI: 10.1016/j.colsurfa.2022.128360] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Chen C, Chen L, Weng D, Chen S, Liu J, Wang J. Revealing the mechanism of superwetting fibrous membranes for separating surfactant-free water-in-oil emulsions. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Han J, Li B, Nai X, Wu P, Zhang B, Dong Y, Li W, Liu X. Facile strategy for the construction of a robust underbrine superoleophobic membrane for highly efficient oil-brine separation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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14
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Deng W, Wang G, Tang L, Zeng Z, Ren T, Xue Q. Viscous Oil De-Wetting Surfaces Based on Robust Superhydrophilic Barium Sulfate Nanocoating. ACS Appl Mater Interfaces 2021; 13:27674-27686. [PMID: 34086434 DOI: 10.1021/acsami.1c06913] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Viscous oil adherence onto solid surfaces is ubiquitous and has caused intractable fouling problems, impairing the function of solid surfaces in various areas such as optics and separation membranes. Materials with superhydrophilicity and underwater superoleophobicity are very effective in elimination of oil fouling. However, most of them cannot dewet viscous oils and may malfunction without prehydration treatment. Herein, we report a facile and environmental strategy to prepare barium sulfate (BaSO4) nanocoating to dewet viscous oils on dry surfaces. Abundant surface polar groups (surface hydroxyl) on BaSO4 nanocoating enhance both hydrophilicity after oil fouling (underoil water contact angle <10°) and underwater superoleophobicity (underwater-oil contact angle >155°) and then facilitate oil dewetting ability. Different oils with viscosity up to 900 mPa·s can be easily eliminated after immersion into water. The results and force analysis also demonstrate that small surface roughness and ultrahydrophilicity under oil are beneficial to achieve oil dewetting property on dry surfaces. Furthermore, BaSO4 nanocoating displays excellent mechanical, thermal and chemical stability and can maintain oil repellency through various harsh conditions. Outstanding antioil fouling ability also enables the fabric coated by BaSO4 nanocoating to separate crude oil/water with flux higher than 28 000 Lm2-h-1 and separation efficiency larger than 99.9% and maintain effective separation performance even after 100 times of separation. Thus, the robust superhydrophilic BaSO4 nanocoating is potential in oil dewetting and waste oil remediation.
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Affiliation(s)
- Wanshun Deng
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Key Laboratory of Thin Film and Microfabrication Technology, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
| | - Gang Wang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
| | - Lei Tang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
| | - Zhixiang Zeng
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
| | - Tianhui Ren
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Key Laboratory of Thin Film and Microfabrication Technology, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Qunji Xue
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
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15
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Yang J, Liao M, Hong G, Dai S, Shen J, Xie H, Chen C. Effect of APTES- or MPTS-Conditioned Nanozirconia Fillers on Mechanical Properties of Bis-GMA-Based Resin Composites. ACS Omega 2020; 5:32540-32550. [PMID: 33376891 PMCID: PMC7758951 DOI: 10.1021/acsomega.0c04762] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/25/2020] [Indexed: 06/12/2023]
Abstract
To investigate the effects of 3-aminopropyltriethoxysilane (APTES)- or (3-mercaptopropyl)trimethoxysilane (MPTS)-conditioned nanozirconia fillers on the mechanical properties of Bis-GMA-based resin composites. The conditioned fillers were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and thermodynamic calculations. They were then used to prepare Bis-GMA-based resin composites, whose flexural strength and elastic modulus were evaluated. The Cell Counting Kit-8 (CCK-8) assessed the composites' cytotoxicity. The FTIR spectra of the conditioned fillers showed new absorption bands at 1569 and 1100 cm-1, indicating successful grafting of APTES or MPTS onto nanozirconia. XPS confirmed the Zr-O-Si bonds in the APTES- or MPTS-conditioned fillers at contents of 2.02 and 6.98%, respectively. Thermodynamic calculations reaffirmed the chemical binding between the two silanes and nanozirconia fillers. Composites containing the conditioned nanozirconia fillers had significantly greater flexural strengths (APTES, 121.02 ± 8.31 MPa; MPTS, 132.80 ± 15.80 MPa; control, 94.84 ± 9.28 MPa) and elastic moduli (8.76 ± 0.52, 9.24 ± 0.60, and 7.44 ± 0.83 GPa, respectively) than a control with untreated fillers. The cytotoxicity assay identified no significant cytotoxicity by composites containing the conditioned fillers. Silanes were previously considered to be unable to chemically condition zirconia to bond with resin. Inclusion of APTES- or MPTS-conditioned nanozirconia fillers can improve the mechanical properties of Bis-GMA-based resin composites without obvious cytotoxicity in this study.
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Affiliation(s)
- Jiaxue Yang
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Mengyuan Liao
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Gaoying Hong
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Shiqi Dai
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Jiadi Shen
- Jiangsu
Key Laboratory of Oral Diseases, Department of Endodontics, Affiliated
Hospital of Stomatology, Nanjing Medical
University, Nanjing 210029, China
| | - Haifeng Xie
- Jiangsu
Key Laboratory of Oral Diseases, Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Chen Chen
- Jiangsu
Key Laboratory of Oral Diseases, Department of Endodontics, Affiliated
Hospital of Stomatology, Nanjing Medical
University, Nanjing 210029, China
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16
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Huang J, Zhang Z, Weng J, Yu D, Liang Y, Xu X, Qiao Z, Zhang G, Yang H, Wu X. Molecular Understanding and Design of Porous Polyurethane Hydrogels with Ultralow-Oil-Adhesion for Oil-Water Separation. ACS Appl Mater Interfaces 2020; 12:56530-56540. [PMID: 33285071 DOI: 10.1021/acsami.0c18825] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Materials with opposite affinities toward oil and water have been extensively used to coat porous substrates for oil-water separation, but the applications of these materials have been limited by the need for complex coating processes as well as the short-term adherence of these materials onto different substrates under extreme conditions. As reported herein, the robust porous polyurethane hydrogel has been theoretically and structurally designed with ultralow-oil-adhesion properties which is free stand without depending on additional substrates. The combination of superhydrophilic properties along with the underwater superoleophobic behavior of this porous hydrogel allows gravity driven separations of oil-water mixtures, and its antiadhesion performance toward oil prevents undesirable oily fouling. The underwater superoleophobic properties were also illustrated by molecular dynamics simulation to understand the resisting effect of hydrated layers. The as-prepared porous hydrogel shows ultrahigh oil-water separation efficiencies of 99.9% for various oil-water mixtures, ranging from those containing viscous oils (pump oil and peanut oil) to organic solvents (n-hexane, n-hexadecane, and toluene). In addition, this hydrogel is durable even with exposure to various harsh conditions including acidic and basic media (pH 0-14) as well as exposure to mechanical abrasion. We believe that the combination of facile preparation, substrate independence, gravity driven separation, antifouling properties, high durability, as well as the outstanding separation flux and efficiency of this robust porous hydrogel will help to advance the design and application of materials in oil-water separation fields.
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Affiliation(s)
- Jianjia Huang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zhenqiang Zhang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Jiahao Weng
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Danfeng Yu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Yueyan Liang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Xiubin Xu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zhiwei Qiao
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab for Green Chemical Product Technology, South China University of Technology, Guangzhou 510640, China
| | - Ganwei Zhang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Hui Yang
- CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xu Wu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
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17
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Chen C, Chen L, Weng D, Li X, Li Z, Wang J. Simulation Study on the Dynamic Behaviors of Water-in-Oil Emulsified Droplets on Coalescing Fibers. Langmuir 2020; 36:14872-14880. [PMID: 33231080 DOI: 10.1021/acs.langmuir.0c02948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Although increasing superwetting membranes have been developed for separating oil-water emulsions based on the "size-sieving" mechanism, their pores are easily blocked and fouled by the intercepted emulsified droplets, which would result in a severe membrane fouling issue and a sharp decline in flux. Instead of droplet interception, a fiber-based coalescer separates oil/water emulsions by inducing the emulsified droplets to coalesce and transform into layered oil/water mixtures, exhibiting an ability to work continuously for a long time with high throughput, which makes it a promising technology for emulsion treatment. However, the underlying mechanism of the separation process is not well understood, which makes it difficult to further improve the separation performance. Hence, in this work, the dynamic behaviors of water-in-oil emulsified droplets on the surface of the coalescing fiber were numerically investigated based on the phase-field model. The attachment, transport, and detachment behaviors of droplets on fibers were directly observed, and the effects of fiber wettability, orientation, arrangement, and fluid speed were studied in detail. First, it was observed that the droplets will move downstream along the fiber surface under the effect of fluid shear, and the large droplets tend to coalesce with their downstream small droplets on the same fiber surface because they move faster compared to the small droplets. Second, it was found that the emulsified droplet will spontaneously transport to the intersection of two angled fibers under the drive of asymmetric Laplace pressure, which demonstrated that the emulsified droplets tend to gather at the intersection of fibers when permeating through a coalescing medium. Third, it was found that the detachment behaviors of droplets from the fiber surface are strongly affected by their size, fiber wettability, and fluid velocity. In addition, the results of our simulation show that the backside of two closely attached fibers can further inhibit the detachment of droplets. We truly believe that our research results are of significance to optimize the parameters of a fiber-based coalescer for separating oil-water emulsions and to develop novel oil/water separators.
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Affiliation(s)
- Chaolang Chen
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
| | - Lei Chen
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
| | - Ding Weng
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
| | - Xuan Li
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
| | - Zhaoxin Li
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
| | - Jiadao Wang
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
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18
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He L, Long M, Miao X, Zhou Q, Dong M, Liu X, Deng W. A simple and environmental strategy to separate and purify dye-contaminated emulsion using waste porous honeycomb cinder. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2020.1847660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Linyi He
- College of Materials Science and Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Mengying Long
- College of Materials Science and Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Xinrui Miao
- College of Materials Science and Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Qiannan Zhou
- College of Materials Science and Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Meiqiu Dong
- College of Materials Science and Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Xiaogang Liu
- College of Materials Science and Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Wenli Deng
- College of Materials Science and Engineering, South China University of Technology, Guangzhou, P. R. China
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19
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Sun Y, Guo Z. Programming Multiphase Media Superwetting States in the Oil-Water-Air System: Evolutions in Hydrophobic-Hydrophilic Surface Heterogeneous Chemistry. Adv Mater 2020; 32:e2004875. [PMID: 33463790 DOI: 10.1002/adma.202004875] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/26/2020] [Indexed: 06/12/2023]
Abstract
Studies toward tailoring macroscopic extreme wetting behaviors on a certain well-defined surface in multiphase media are significant but still at an infant stage. Herein, superantiwetting evolutions in the oil-water-air system can be programmed from single to quadruple superrepellence by controlling the surface hydrophobic-hydrophilic heterogeneous chemistry. Ammonia vapor exposure makes the realization of challenging superhydrophilicity-superoleophobicity possible in air medium, causing the transition from quadruple to triple superantiwetting states in the oil-water-air system. Upon UV illumination, only single superrepellence-underwater superoleophobicity is maintained on titanium dioxide (TiO2, P25)-based coatings. A reversible transition between underoil superhydrophilicity and superhydrophobicity via an alternating UV irradiation and heating process leads to a switching between "water-absorbing" and "size-sieving" effects in water-in-oil emulsion separation. A comparative study for investigating two such effects in emulsion separation is further investigated. The current conceptual insights not only extend superwetting states to multiphase media, but can also deepen the understanding of the relationship between macroscopic extreme wetting behaviors and surface chemistry.
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Affiliation(s)
- Yihan Sun
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zhiguang Guo
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, 430062, P. R. China
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20
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Affiliation(s)
- Ning Zhang
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma’anshan, Anhui 243002, P. R. China
| | - Yunfei Qi
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma’anshan, Anhui 243002, P. R. China
| | - Yana Zhang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210014, P. R. China
| | - Jialiang Luo
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210014, P. R. China
| | - Ping Cui
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma’anshan, Anhui 243002, P. R. China
| | - Wei Jiang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210014, P. R. China
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21
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Wang B, Mahmood A, Chen L, Weng D, Wang C, Chen C, Li Z, Wang J. Under-oil superhydrophilic salt particle filter for the efficient separation of water-in-oil emulsions. Chem Commun (Camb) 2020; 56:11585-11588. [DOI: 10.1039/d0cc04290k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, a surfactant stabilized water-in-oil emulsion has been successfully separated by using only NaCl particles as a filter.
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Affiliation(s)
- Bao Wang
- Northeast Petroleum University
- Daqing 163318
- China
- State Key Laboratory of Tribology
- Tsinghua University
| | - Awais Mahmood
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- China
| | - Lei Chen
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- China
| | - Ding Weng
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- China
| | - Caihua Wang
- Northeast Petroleum University
- Daqing 163318
- China
| | - Chaolang Chen
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- China
| | - Zhaoxin Li
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- China
| | - Jiadao Wang
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- China
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