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Zhou Z, Zhao K, Chi HY, Shen Y, Song S, Hsu KJ, Chevalier M, Shi W, Agrawal KV. Electrochemical-repaired porous graphene membranes for precise ion-ion separation. Nat Commun 2024; 15:4006. [PMID: 38740849 DOI: 10.1038/s41467-024-48419-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 04/26/2024] [Indexed: 05/16/2024] Open
Abstract
The preparation of atom-thick porous lattice hosting Å-scale pores is attractive to achieve a large ion-ion selectivity in combination with a large ion flux. Graphene film is an ideal selective layer for this if high-precision pores can be incorporated, however, it is challenging to avoid larger non-selective pores at the tail-end of the pore size distribution which reduces ion-ion selectivity. Herein, we develop a strategy to overcome this challenge using an electrochemical repair strategy that successfully masks larger pores in large-area graphene. 10-nm-thick electropolymerized conjugated microporous polymer (CMP) layer is successfully deposited on graphene, thanks to a strong π-π interaction in these two materials. While the CMP layer itself is not selective, it effectively masks graphene pores, leading to a large Li+/Mg2+ selectivity from zero-dimensional pores reaching 300 with a high Li+ ion permeation rate surpassing the performance of reported materials for ion-ion separation. Overall, this scalable repair strategy enables the fabrication of monolayer graphene membranes with customizable pore sizes, limiting the contribution of nonselective pores, and offering graphene membranes a versatile platform for a broad spectrum of challenging separations.
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Affiliation(s)
- Zongyao Zhou
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, P. R. China
| | - Kangning Zhao
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
| | - Heng-Yu Chi
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
| | - Yueqing Shen
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
| | - Shuqing Song
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
| | - Kuang-Jung Hsu
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
| | - Mojtaba Chevalier
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
| | - Wenxiong Shi
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300387, P. R. China
| | - Kumar Varoon Agrawal
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland.
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Wang J, Jiao M, Zhan X, Hu C, Zhang Z. Humification and fungal community succession during pig manure composting: Membrane covering and mature compost addition. BIORESOURCE TECHNOLOGY 2024; 393:130030. [PMID: 37977497 DOI: 10.1016/j.biortech.2023.130030] [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: 08/03/2023] [Revised: 11/10/2023] [Accepted: 11/14/2023] [Indexed: 11/19/2023]
Abstract
The objective of this study was to elucidate the combined effect of a semi-permeable membrane (M) and mature compost (MC) on humification and fungal community succession in pig manure composting. Compared with the control, the concentrations of humic substances (HSs) increased by 44.54 % (M + 15 % MC) and 43.90 % (M). During the thermophilic phase, Aspergillus (67.26 %) was the dominant genus in the M + 15 % MC treatment. Membrane covering increased the relative abundance (RA) of other phyla (except for Ascomycetes and Basidiomycetes) on the 14th day and Basidiomycetes on the 80th day in M treatment. Humic acid, HSs were positively correlated with the RA of genera Myceliophthora, Kernia, and Mycothermus. Myceliophthora was the key genus in the M + 15 % MC treatment on the 80th day. The results showed that 15 % MC addition under membrane covering optimizes the quality of composting products.
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Affiliation(s)
- Juan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Minna Jiao
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Xiangyu Zhan
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Cuihuan Hu
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China.
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3
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Cui Z, Yan M, Wang Q, Si J, Liu X. Fabrication and characterization of porous deacetylated cellulose acetate casting membrane with excellent oil/water separation performance. J Appl Polym Sci 2023. [DOI: 10.1002/app.53864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Zhixiang Cui
- College of Materials Science and Engineering Fujian University of Technology Fuzhou China
- Key Laboratory of Materials Processing and Mold Zhengzhou University Zhengzhou China
- Fujian Provincial Key Laboratory of Advanced Materials Processing and Application Fuzhou China
- Key Laboratory of Polymer Materials and Products of Universities in Fujian Fujian University of Technology Fuzhou China
| | - Mangao Yan
- College of Materials Science and Engineering Fujian University of Technology Fuzhou China
| | - Qianting Wang
- College of Materials Science and Engineering Fujian University of Technology Fuzhou China
- Fujian Provincial Key Laboratory of Advanced Materials Processing and Application Fuzhou China
- Key Laboratory of Polymer Materials and Products of Universities in Fujian Fujian University of Technology Fuzhou China
| | - Junhui Si
- College of Materials Science and Engineering Fujian University of Technology Fuzhou China
- Fujian Provincial Key Laboratory of Advanced Materials Processing and Application Fuzhou China
- Key Laboratory of Polymer Materials and Products of Universities in Fujian Fujian University of Technology Fuzhou China
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Jain H, Kumar A, Verma AK, Wadhwa S, Rajput VD, Minkina T, Garg MC. Treatment of textile industry wastewater by using high-performance forward osmosis membrane tailored with alpha-manganese dioxide nanoparticles for fertigation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:80032-80043. [PMID: 35426022 DOI: 10.1007/s11356-022-20047-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
Forward osmosis (FO) technology has been acknowledged as an energy-efficient cutting-edge water treatment innovation; however, the inefficient performance of polymer-based membranes remains a tailback in the practical utilization of FO. A significant issue in FO is membrane fouling, which negatively influences the flux efficiency, working expenses and membrane life expectancy. Membranes having high water flux and minimum reverse solute flux at low operating pressures are the ideal membranes for this process. This study reports a thin-film nanocomposite (TFNC) membrane for the treatment of textile industry wastewater utilizing fertilizer as draw solution fabricated via the phase inversion process. The chemical structure and morphology of the synthesized manganese oxide (MnO2) incorporated membrane were studied by various characterization techniques like X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy-energy-dispersive X-ray spectroscopy, contact angle and gravimetry. The outcomes demonstrated that the nanoparticles were bonded to cellulose acetate polymer via covalent bonds and showed very hydrophilic membrane surface, along with an increased osmotic water flux of 52.5 L.m2.h-1 and reverse salt flux of 10.9 g.m2.h-1, when deionized wastewater and potassium chloride were used as the feed solution and the draw solution, respectively. In this manner, incorporating manganese oxide into the FO membrane may introduce its extraordinary possible application for the production of diluted fertilizer solution with balanced nutrients.
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Affiliation(s)
- Harshita Jain
- Amity Institute of Environmental Sciences, Amity University Uttar Pradesh, Sector 125, Noida, Uttar Pradesh, 201313, India
| | - Ajay Kumar
- Department of Hydrology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Anoop Kumar Verma
- School of Energy and Environment, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147005, India
| | - Shikha Wadhwa
- Department of Chemistry, School of Engineering, University of Petroleum & Energy Studies, Bidholi Campus, Dehradun, Uttarakhand, 248007, India
| | - Vishnu D Rajput
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, 344090, Russia
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, 344090, Russia
| | - Manoj Chandra Garg
- Amity Institute of Environmental Sciences, Amity University Uttar Pradesh, Sector 125, Noida, Uttar Pradesh, 201313, India.
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A Mini-Review of Enhancing Ultrafiltration Membranes (UF) for Wastewater Treatment: Performance and Stability. CHEMENGINEERING 2021. [DOI: 10.3390/chemengineering5030034] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The scarcity of freshwater resources in many regions of the world has contributed to the emergence of various technologies for treating and recovering wastewater for reuse in industry, agriculture, and households. Deep wastewater treatment from oils and petroleum products is one of the difficult tasks that must be solved. Among the known technologies, UF membranes have found wide industrial application with high efficiency in removing various pollutants from wastewater. It is shown that the search for and development of highly efficient, durable, and resistant to oil pollution UF membranes for the treatment of oily wastewater is an urgent research task. The key parameters to improve the performance of UF membranes are by enhancing wettability (hydrophilicity) and the antifouling behavior of membranes. In this review, we highlight the using of ultrafiltration (UF) membranes primarily to treat oily wastewater. Various methods of polymer alterations of the UF membrane were studied to improve hydrophilicity, the ability of antifouling the membrane, and oil rejection, including polymer blending, membrane surface modification, and the mixed membrane matrix. The influence of the type and composition of the hydrophilic additives of nanoparticles (e.g., Multiwall carbon nanotubes (MWCNT), graphene oxide (GO), zinc oxide (ZnO), and titanium dioxide (TiO2), etc.) was investigated. The review further provides an insight into the removal efficiency percent.
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Zhang X, Zheng J, Xu L, Yin M, Zhang G, Zhao W, Zhang Z, Shen C, Meng Q. Novel Thin Film Nanocomposite Forward Osmosis Membranes Prepared by Organic Phase Controlled Interfacial Polymerization with Functional Multi-Walled Carbon Nanotubes. MEMBRANES 2021; 11:476. [PMID: 34203205 PMCID: PMC8304348 DOI: 10.3390/membranes11070476] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 06/16/2021] [Accepted: 06/20/2021] [Indexed: 11/16/2022]
Abstract
Novel high-quality thin film nanocomposite (TFN) membranes for enhanced forward osmosis (FO) were first synthesized through organic phase controlled interfacial polymerization by utilizing functional multi-walled carbon nanotubes (MWCNTs). As 3-aminopropyltriethoxysilane (APTES) grafted MWCNTs via an amidation reaction significantly promoted the dispersion in organic solution, MWCNTs-APTES with better compatibility effectively restricted the penetration of trimesoyl chloride (TMC), thus adjusting the morphology and characters of TFN membranes. Various techniques such as Fourier transform infrared spectra (FTIR), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), sessile droplet analysis and FO experiments and reverse osmosis (RO) operation were taken to characterize and evaluate the performance of nanocomposites and membranes. The prepared TFN FO membranes exhibited good hydrophilicity and separation efficiency, in which water flux was about twice those of thin film composite (TFC) membranes without MWCNTs-APTES in both AL-DS and AL-FS modes. Compared with the original TFC membrane, the membrane structural parameter of the novel TFN FO membrane sharply was cut down to 60.7%. Based on the large number of low mass-transfer resistance channels provided by functional nanocomposites, the progresses may provide a facile approach to fabricate novel TFN FO membranes with advanced selectivity and permeability.
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Affiliation(s)
- Xu Zhang
- State Key Lab of Green Chemical Synthesis Technology, Center for Membrane and Water Science &Technology, Institute of Oceanic and Environmental Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (X.Z.); (J.Z.); (L.X.); (M.Y.); (W.Z.); (Z.Z.)
| | - Jiuhan Zheng
- State Key Lab of Green Chemical Synthesis Technology, Center for Membrane and Water Science &Technology, Institute of Oceanic and Environmental Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (X.Z.); (J.Z.); (L.X.); (M.Y.); (W.Z.); (Z.Z.)
| | - Lusheng Xu
- State Key Lab of Green Chemical Synthesis Technology, Center for Membrane and Water Science &Technology, Institute of Oceanic and Environmental Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (X.Z.); (J.Z.); (L.X.); (M.Y.); (W.Z.); (Z.Z.)
| | - Ming Yin
- State Key Lab of Green Chemical Synthesis Technology, Center for Membrane and Water Science &Technology, Institute of Oceanic and Environmental Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (X.Z.); (J.Z.); (L.X.); (M.Y.); (W.Z.); (Z.Z.)
| | - Guoliang Zhang
- State Key Lab of Green Chemical Synthesis Technology, Center for Membrane and Water Science &Technology, Institute of Oceanic and Environmental Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (X.Z.); (J.Z.); (L.X.); (M.Y.); (W.Z.); (Z.Z.)
| | - Wenqian Zhao
- State Key Lab of Green Chemical Synthesis Technology, Center for Membrane and Water Science &Technology, Institute of Oceanic and Environmental Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (X.Z.); (J.Z.); (L.X.); (M.Y.); (W.Z.); (Z.Z.)
| | - Zeyu Zhang
- State Key Lab of Green Chemical Synthesis Technology, Center for Membrane and Water Science &Technology, Institute of Oceanic and Environmental Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (X.Z.); (J.Z.); (L.X.); (M.Y.); (W.Z.); (Z.Z.)
| | - Chong Shen
- College of Chemical and Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou 310027, China;
| | - Qin Meng
- College of Chemical and Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou 310027, China;
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Demirel E, Dadashov S. Fabrication of a novel PVDF based silica coated multi-walled carbon nanotube embedded membrane with improved filtration performance. CHEM ENG COMMUN 2021. [DOI: 10.1080/00986445.2021.1935253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Elif Demirel
- Faculty of Engineering, Department of Chemical Engineering, Eskisehir Technical University, Eskisehir, Turkey
| | - Sakhavat Dadashov
- Faculty of Engineering, Department of Chemical Engineering, Eskisehir Technical University, Eskisehir, Turkey
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Su Y, Wang F, Wu S, Fan Y, Bai W, Wang S, Sun H, Zhu Z, Liang W, Li A. Template-assisted preparation of conjugated microporous polymers membranes for selective separation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118203] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Ezugbe EO, Kweinor Tetteh E, Rathilal S, Asante-Sackey D, Amo-Duodu G. Desalination of Municipal Wastewater Using Forward Osmosis. MEMBRANES 2021; 11:membranes11020119. [PMID: 33567485 PMCID: PMC7915055 DOI: 10.3390/membranes11020119] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 01/31/2023]
Abstract
Membrane technology has gained much ground in water and wastewater treatment over the past couple of decades. This is timely, as the world explores smart, eco-friendly, and cheap water and wastewater treatment technologies in its quest to make potable water and sanitation commonplace in all parts of the world. Against this background, this study investigated forward osmosis (FO) in the removal of salts (chlorides, sulphates, and carbonates) and organics (chemical oxygen demand (COD), turbidity, total suspended solids (TSS), and color) from a synthetic municipal wastewater (MWW), mimicking secondary-treated industrial wastewater, at very low feed and draw solution flow rates (0.16 and 0.14 L/min respectively), using 70 g/L NaCl solution as the draw solution. The results obtained showed an average of 97.67% rejection of SO42− and CO32− while Cl− was found to enrich the feed solution (FS). An average removal of 88.92% was achieved for the organics. A permeation flux of 5.06 L/m2.h was obtained. The kinetics of the ions transport was studied, and was found to fit the second-order kinetic model, with Pearson’s R-values of 0.998 and 0.974 for Cl− and CO32− respectively. The study proves FO as a potential technology to desalinate saline MWW.
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