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Wang Z, Qu G, Ren Y, Chen X, Wang J, Lu P, Cheng M, Chu X, Yuan Y. Study on the Mechanism of Rapid Oil-Water Separation by a Fe 3 O 4 @PMMA@PDMS Intelligent Superhydrophobic Micro/Nanorobot. Chem Asian J 2024; 19:e202300863. [PMID: 37937970 DOI: 10.1002/asia.202300863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/05/2023] [Accepted: 11/08/2023] [Indexed: 11/09/2023]
Abstract
We prepared an environmentally friendly intelligent Fe3 O4 @PMMA@PDMS superhydrophobic oil-absorbing material with simple process and excellent performance, and investigated the effects of different particle sizes of Fe3 O4 , different concentrations of PDMS, and different heating times on the superhydrophobicity of the coating. The best performance of the coating was achieved at a particle size combination of 20/500 nm for Fe3 O4 , a PDMS to Fe3 O4 @PMMA mass ratio of 6 : 1, and a heating time of 2 min at 400 °C. H2-SPSS coating not only has excellent superhydrophobicity, abrasion resistance, self-cleaning property, and chemical corrosion, but also has good flux and efficiency for separating oil-water mixture, with fluxes of 40,540, 32,432, and 37,027 Lm-2 h-1 for trichloromethane, dichloromethane and bromoethane, respectively, and separation efficiencies of 99.78 %, 99.74 % and 99.73 %, respectively. In addition, we also prepared a superhydrophobic magnetic polyurethane (SPPU) sponge using Fe3 O4 @PMMA@PDMS, which not only has a good oil absorption capacity of 18-44 g/g for different oil substances, it can also move directionally by magnet attraction and absorb oil along a fixed path. Under the control of the magnet, SPPU completes the whole oil absorption process in only 4 s, showing excellent oil absorption and intelligence.
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Affiliation(s)
- Zuoliang Wang
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People's Republic of China
- National Regional Engineering Research Center-NCW, Kunming, Yunnan, 650500, People's Republic of China
| | - Guangfei Qu
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People's Republic of China
- National Regional Engineering Research Center-NCW, Kunming, Yunnan, 650500, People's Republic of China
| | - Yuanchuan Ren
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People's Republic of China
- National Regional Engineering Research Center-NCW, Kunming, Yunnan, 650500, People's Republic of China
| | - Xiuping Chen
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People's Republic of China
- National Regional Engineering Research Center-NCW, Kunming, Yunnan, 650500, People's Republic of China
| | - Jun Wang
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People's Republic of China
- National Regional Engineering Research Center-NCW, Kunming, Yunnan, 650500, People's Republic of China
| | - Ping Lu
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People's Republic of China
- National Regional Engineering Research Center-NCW, Kunming, Yunnan, 650500, People's Republic of China
| | - Minhua Cheng
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People's Republic of China
- National Regional Engineering Research Center-NCW, Kunming, Yunnan, 650500, People's Republic of China
| | - Xiaomei Chu
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People's Republic of China
- National Regional Engineering Research Center-NCW, Kunming, Yunnan, 650500, People's Republic of China
| | - Yongheng Yuan
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, People's Republic of China
- National Regional Engineering Research Center-NCW, Kunming, Yunnan, 650500, People's Republic of China
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2
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Li X, Lin W, Petrescu FIT, Li J, Wang L, Zhu H, Wang H, Shi G. A Solar-Driven Oil-Water Separator with Fluorescence Sensing Performance. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2696. [PMID: 37836337 PMCID: PMC10574624 DOI: 10.3390/nano13192696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/26/2023] [Accepted: 10/01/2023] [Indexed: 10/15/2023]
Abstract
Presently, the separation of oil and water through functional membranes inevitably entails either inefficient gravity-driven processes or energy-intensive vacuum pressure mechanisms. This study introduces an innovative photothermal evaporator that uses solar energy to drive oil-water separation while concurrently facilitating the detection of Fe3+ in wastewater. First, by alkali delignification, small holes were formed on the side wall of the large size tubular channel in the direction of wood growth. Subsequently, superhydrophilic SiO2 nanoparticles were in situ assembled onto the sidewalls of the tubular channels. Finally, carbon quantum dots were deposited by spin-coating on the surface of the evaporator, paralleling the growth direction of the wood. During the photothermal evaporation process, the tubular channels with small holes in the side wall parallel the bulk water, which not only ensures the effective water supply to the photothermal surface but also reduces the heat loss caused by water reflux on the photothermal surface. The superhydrophilic SiO2 nanoparticles confer both hydrophilic and oleophobic properties to the evaporator, preventing the accumulation of minute oil droplets within the device and achieving sustained and stable oil-water separation over extended periods. These carbon quantum dots exhibit capabilities for both photothermal conversion and fluorescence transmission. This photothermal evaporator achieves an evaporation rate as high as 2.3 kg m-2 h-1 in the oil-water separation process, and it has the ability to detect Fe3+ concentrations in wastewater as low as 10-9 M.
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Affiliation(s)
- Xin Li
- Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; (X.L.); (J.L.); (L.W.); (H.Z.)
| | - Wei Lin
- Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; (X.L.); (J.L.); (L.W.); (H.Z.)
| | - Florian Ion Tiberiu Petrescu
- Department of Mechanisms and Robots Theory, National University of Science and Technology Polytechnic Bucharest, 060042 Bucharest, Romania;
| | - Jia Li
- Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; (X.L.); (J.L.); (L.W.); (H.Z.)
| | - Likui Wang
- Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; (X.L.); (J.L.); (L.W.); (H.Z.)
| | - Haiyan Zhu
- Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; (X.L.); (J.L.); (L.W.); (H.Z.)
| | - Haijun Wang
- Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; (X.L.); (J.L.); (L.W.); (H.Z.)
| | - Gang Shi
- Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; (X.L.); (J.L.); (L.W.); (H.Z.)
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3
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Wang Z, Ren Y, Wu F, Qu G, Chen X, Yang Y, Wang J, Lu P. Advances in the research of carbon-, silicon-, and polymer-based superhydrophobic nanomaterials: Synthesis and potential application. Adv Colloid Interface Sci 2023; 318:102932. [PMID: 37311274 DOI: 10.1016/j.cis.2023.102932] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 05/10/2023] [Accepted: 05/29/2023] [Indexed: 06/15/2023]
Abstract
With the rapid development of science and technology, superhydrophobic nanomaterials have become one of the hot topics from various subjects. Due to their distinct properties, such as superhydrophobicity, anti-icing and corrosion resistance, superhydrophobic nanomaterials are widely used in industry, agriculture, defense, medicine and other fields. Hence, the development of superhydrophobic materials with superior performance, economical, practical features, and environment-friendly properties are extremely important for industrial development and environmental protection. Aimed to provide a scientific and theoretical basis for the subsequent study on the preparation of composite superhydrophobic nanomaterials, this paper reviewed the latest progress in the research of superhydrophobic surface wettability and the theory of superhydrophobicity, summarized and analyzed the latest development of carbon-based, silicon-based and polymer-based superhydrophobic nanomaterials in terms of their synthesis, modification, properties and structure sizes (diameters), discussed the problems and unique application prospects of carbon-based, silicon-based and polymer-based superhydrophobic nanomaterials.
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Affiliation(s)
- Zuoliang Wang
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China; National Regional Engineering Research Center-NCW, Kunming 650500, Yunnan, China
| | - Yuanchuan Ren
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China; National Regional Engineering Research Center-NCW, Kunming 650500, Yunnan, China
| | - Fenghui Wu
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China; National Regional Engineering Research Center-NCW, Kunming 650500, Yunnan, China
| | - Guangfei Qu
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China; National Regional Engineering Research Center-NCW, Kunming 650500, Yunnan, China.
| | - Xiuping Chen
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China; National Regional Engineering Research Center-NCW, Kunming 650500, Yunnan, China
| | - Yuyi Yang
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China; National Regional Engineering Research Center-NCW, Kunming 650500, Yunnan, China
| | - Jun Wang
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China; National Regional Engineering Research Center-NCW, Kunming 650500, Yunnan, China
| | - Ping Lu
- Faculty of environmental science and engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China; National Regional Engineering Research Center-NCW, Kunming 650500, Yunnan, China
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Kalantari M, Moghaddam SS, Vafaei F. Global research trends in petrochemical wastewater treatment from 2000 to 2021. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:9369-9388. [PMID: 36502475 DOI: 10.1007/s11356-022-24553-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
Petrochemical wastewater (PWW) is a huge industrial contaminant that generates a wide range of resistive and poisonous organic pollutants that harm animals and plants in natural water bodies when discharged untreated or partially treated. Therefore, it is vital to develop technologies that are simple, efficient, and profitable for the treatment of oily wastewater. Although much study has been undertaken on the treatment of PWW, there has not been any recent work on bibliometric analysis of global research trends on this issue. A bibliometric analysis will help current and future researchers figure out where the gaps are and how to fill them. The present study's focus is to examine the characteristics and trends of research on oily wastewater treatment with an emphasis on the treatment of PWW. This research was performed on five important aspects, including characterization of research publications, countries' performances and collaborations, an analysis of the best papers with the most citations, keyword analysis (including frequency distribution of the keyword analysis, the transformation of the keyword combination across time, and exploration of changes in rank over time), and journal analysis, according to the 2457 papers in the Science Citation Index Expanded using the Web of Science (WoS) database from 2000 to 2021. For further analysis, the contingency matrix, bump diagram, and inter-temporal network stream were employed.
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Affiliation(s)
- Mahdi Kalantari
- Faculty of Civil Engineering, K. N. Toosi University of Technology, Mirdamad Intersection, Valiasr St, No. 1346, Tehran, Iran
| | - Shabnam Sadri Moghaddam
- Faculty of Civil Engineering, K. N. Toosi University of Technology, Mirdamad Intersection, Valiasr St, No. 1346, Tehran, Iran.
| | - Fereidon Vafaei
- Faculty of Civil Engineering, K. N. Toosi University of Technology, Mirdamad Intersection, Valiasr St, No. 1346, Tehran, Iran
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5
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Preparation of superhydrophobic-superoleophilic ZnO nanoflower@SiC composite ceramic membranes for water-in-oil emulsion separation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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6
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Shah AA, Yoo Y, Park A, Cho YH, Park YI, Park H. Poly(ethylene-co-vinyl alcohol) Electrospun Nanofiber Membranes for Gravity-Driven Oil/Water Separation. MEMBRANES 2022; 12:membranes12040382. [PMID: 35448352 PMCID: PMC9028168 DOI: 10.3390/membranes12040382] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/19/2022] [Accepted: 03/29/2022] [Indexed: 12/10/2022]
Abstract
Fabrication of highly efficient oil/water separation membranes is attractive and challenging work for the actual application of the membranes in the treatment of oily wastewater and cleaning up oil spills/oil leakage accidents. In this study, hydrophilic poly(ethylene-co-polyvinyl alcohol) (EVOH) nanofiber membranes were made using an electrospinning technique for oil/water separation. The as-prepared EVOH electrospun nanofiber membranes (ENMs) exhibited a super-hydrophilic property (water contact angle 33.74°) without further treatment. As prepared, ENMs can provide continuous separation of surfactant-free and surfactant-stabilized water-in-oil emulsions with high efficiency (i.e., flux 8200 L m−2 h−1 (LMH), separation efficiency: >99.9%). In addition, their high stability (i.e., reusable, mechanically robust) would broaden the conditions under which they can be employed in the real field oil/water separation applications. Various characterization techniques (including morphology investigation, pore size, porosity, mechanical properties, and performance test) for gravity-driven oil/water separation were employed to evaluate the newly prepared EVOH ENMs.
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Affiliation(s)
- Aatif Ali Shah
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea; (A.A.S.); (Y.Y.); (A.P.); (Y.H.C.); (Y.-I.P.)
- Department of Green Chemistry and Environmental Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Korea
| | - Youngmin Yoo
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea; (A.A.S.); (Y.Y.); (A.P.); (Y.H.C.); (Y.-I.P.)
| | - Ahrumi Park
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea; (A.A.S.); (Y.Y.); (A.P.); (Y.H.C.); (Y.-I.P.)
| | - Young Hoon Cho
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea; (A.A.S.); (Y.Y.); (A.P.); (Y.H.C.); (Y.-I.P.)
- Department of Green Chemistry and Environmental Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Korea
| | - You-In Park
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea; (A.A.S.); (Y.Y.); (A.P.); (Y.H.C.); (Y.-I.P.)
| | - Hosik Park
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea; (A.A.S.); (Y.Y.); (A.P.); (Y.H.C.); (Y.-I.P.)
- Department of Green Chemistry and Environmental Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Korea
- Correspondence: ; Tel.: +82-42-860-7510
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7
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Zhou Y, He L, Wang L, Chen G, Luo J. A facile and effective strategy to develop a super-hydrophobic/super-oleophilic fiberglass filter membrane for efficient micron-scale water-in-oil emulsion separation. RSC Adv 2022; 12:3227-3237. [PMID: 35425375 PMCID: PMC8979252 DOI: 10.1039/d1ra08841f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 01/07/2022] [Indexed: 11/21/2022] Open
Abstract
In order to achieve efficient micron-scale water-in-oil emulsion separation, a facile and effective strategy is developed to prepare a super-hydrophobic/super-oleophilic fiberglass filter membrane (FGm). Methyl-trichlorosilane (MTS) is successfully cross-linked on the surface of the fiberglass filter membrane (FGm) and aggregates into a 3D nanowire array to provide low surface energy. Nano fumed hydrophobic silica (SH-SiO2) is used to construct the well-defined nanosphere structure on the surface of FGm and enhance the ability of the membrane to resist extreme conditions. The optimally modified membrane displays outstanding super-hydrophobic properties with a contact angle of 156.2°. It is impressive to find that the MTS@SH-SiO2@FGm not only demonstrates the ability to separate water-in-oil emulsions with a particle size of less than 20 μm, but also the removal efficiency of separation has reached 99.98%. More attractively, the membrane still has stable super-hydrophobic features and reusable water-in-oil emulsion separation performance even under exposure to diverse harsh conditions, including extremely acidic corrosive solutions and ultra-high temperature systems. In order to achieve efficient micron-scale water-in-oil emulsion separation, a facile and effective strategy is developed to prepare a super-hydrophobic/super-oleophilic fiberglass filter membrane (FGm).![]()
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Affiliation(s)
- Yujie Zhou
- Department of Chemical Engineering, Sichuan University Chengdu Sichuan 610065 P. R. China
| | - Lantao He
- Department of Chemical Engineering, Sichuan University Chengdu Sichuan 610065 P. R. China
| | - Linxi Wang
- Department of Chemical Engineering, Sichuan University Chengdu Sichuan 610065 P. R. China
| | - Gaoxiang Chen
- Department of Chemical Engineering, Sichuan University Chengdu Sichuan 610065 P. R. China
| | - Jianhong Luo
- Department of Chemical Engineering, Sichuan University Chengdu Sichuan 610065 P. R. China
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8
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Juraij K, Chingakham C, Manaf O, Sagitha P, Suni V, Sajith V, Sujith A. Polyurethane/multi‐walled carbon nanotube electrospun composite membrane for oil/water separation. J Appl Polym Sci 2022. [DOI: 10.1002/app.52117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Kandiyil Juraij
- Materials Research Laboratory, Department of Chemistry National Institute of Technology Calicut Kozhikode India
| | - Chinglenthoiba Chingakham
- School of Materials Science and Engineering National Institute of Technology Calicut Kozhikode India
- Department of Chemistry National University of Singapore Singapore Singapore
| | - Olongal Manaf
- Materials Research Laboratory, Department of Chemistry National Institute of Technology Calicut Kozhikode India
| | - Paroly Sagitha
- Materials Research Laboratory, Department of Chemistry National Institute of Technology Calicut Kozhikode India
| | - Vasudevan Suni
- Inorganic and Bio‐inorganic Laboratory, Department of Chemistry National Institute of Technology Calicut Kozhikode India
| | - Vandana Sajith
- School of Materials Science and Engineering National Institute of Technology Calicut Kozhikode India
| | - Athiyanathil Sujith
- Materials Research Laboratory, Department of Chemistry National Institute of Technology Calicut Kozhikode India
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9
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Wang K, He H, Wei B, Zhang TC, Chang H, Li Y, Tian X, Fan Y, Liang Y, Yuan S. Multifunctional Switchable Nanocoated Membranes for Efficient Integrated Purification of Oil/Water Emulsions. ACS APPLIED MATERIALS & INTERFACES 2021; 13:54315-54323. [PMID: 34735107 DOI: 10.1021/acsami.1c15024] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Surfaces with unusual under-liquid dual superlyophobicity are attractive on account of their widespread applications, but their development remains difficult due to thermodynamic contradiction. Additionally, these surfaces may suffer from limited antifouling ability, which has restricted their practical applications. Herein, we report a successful in situ growth of a hybrid zeolitic imidazolate framework-8 and zinc oxide nanorod on a porous poly(vinylidene fluoride) membrane (ZIF-8@ZnO-PPVDF) and its application as a self-cleaning switchable barrier material in rapid filtration for emulsified oily wastewater. The novel ZIF-8@ZnO-PPVDF exhibits superior mechanical strength, reversible under-liquid dual superlyophobicity, photocatalytic self-cleaning property, and an effective alternate separation capacity toward both oil-in-water (O/W) and water-in-oil (W/O) emulsions with ultrahigh fluxes and efficiencies (>99%). By simply using a "bait-hook-eliminate" method to separate the O/W emulsions containing soluble organic pollutants, we demonstrate that the ZIF-8@ZnO-PPVDF can achieve stable separation fluxes over 600 L m-2 h-1 with high efficiencies and be completely/nondestructively regenerated by visible-light irradiation after each cycle. This study would demonstrate a new approach to prepare an under-liquid dual superlyophobic revivable membrane for various applications.
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Affiliation(s)
- Kai Wang
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610065, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
| | - Huaqiang He
- Low-carbon Technology & Chemical Reaction Engineering Lab, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Baibing Wei
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Tian C Zhang
- Civil & Environmental Engineering Department, University of Nebraska-Lincoln, Omaha, Nebraska 68182-0178, United States
| | - Haiqing Chang
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yingqi Li
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Xiaobao Tian
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yubo Fan
- Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
| | - Ying Liang
- MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Shaojun Yuan
- Civil & Environmental Engineering Department, University of Nebraska-Lincoln, Omaha, Nebraska 68182-0178, United States
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10
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Steamed bun-derived microporous carbon for oil-water separation. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Usman MA, Khan AY. Candle soot particles-modified macroporous monoliths for efficient separation of floating oil/water and stable emulsions. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Yuan Z, Ke Z, Qiu Y, Zheng L, Yang Y, Gu Q, Wang C. Prewetting Polypropylene-Wood Pulp Fiber Composite Nonwoven Fabric for Oil-Water Separation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:46923-46932. [PMID: 32966045 DOI: 10.1021/acsami.0c12612] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The removal of oil from the water surface is vital to protect the environment and living organisms against the threats posed by industrial oily wastewater and offshore oil spills. High cost, low efficiency, and environmental pollution limit the widespread use of the commercial methods of oil-water separation. In this study, the prewetting polypropylene-wood pulp fiber composite nonwoven fabric (PWNF) has been used in the gravity-driven separation of the oil-water mixture. The prewetting PWNF displayed superior underwater oleophobic properties, and the underwater kerosene contact angle was 137.65° ± 4.27°. The oil-water interfacial tension in the microchannels among the PWNF fibers prevented the oil from passing through the microchannels; however, it allowed the passage of water. The PWNF membrane maintained an excellent oil-water separation performance after repeated separation and long-term soaking cycles. The separation membrane maintained 75% and 50% of the initial separation performance after 40 repeat cycles and water immersion for more than 20 days, respectively. The separation rate of the PWNF membrane was also investigated as a function of salt solution concentration, temperature, and pH. Meanwhile, the influences of prewetting time, prewetting temperature, and different dyeing condition of the mixture on the separation rate were clarified. The destruction of the oil-water contact interface was suggested as the main failure mode of the developed PWNF separation membrane. The maximum kerosene height that the PWNF separation membrane could sustain was 800 mm. The obtained results confirmed that the PWNF separation membrane exhibited the high potential of widespread use in various environments for achieving efficient and stable separations, especially for the oily wastewater treatment.
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Affiliation(s)
- Zhishan Yuan
- School of Electro-mechanical Engineering, Guangdong University of Technology, Guangzhou, China, 510006
| | - Zunwen Ke
- School of Electro-mechanical Engineering, Guangdong University of Technology, Guangzhou, China, 510006
| | - Yinghua Qiu
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, 250061, China
| | - Lijuan Zheng
- School of Electro-mechanical Engineering, Guangdong University of Technology, Guangzhou, China, 510006
| | - Yang Yang
- School of Electro-mechanical Engineering, Guangdong University of Technology, Guangzhou, China, 510006
| | - Qingshu Gu
- Guangzhou Hasen Non-Woven Cloth Industry Co., LTD, Guangzhou, China, 510800
| | - Chengyong Wang
- School of Electro-mechanical Engineering, Guangdong University of Technology, Guangzhou, China, 510006
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