1
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Hu D, Sun Z, Han Y, Meng H, Zhang X. Interface synthesis of Cu-BTC/PVDF hybrid membranes and their selective adsorption activity toward Congo red. Dalton Trans 2023; 52:11441-11450. [PMID: 37547961 DOI: 10.1039/d3dt02042h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Considering the surface affinity of MOFs and separation advantages of polymer membranes, herein, a one-step interface synthesis strategy is used in the construction of Cu-BTC/PVDF hybrid membranes, in which Cu2+ ions and 1,3,5-benzenetricarboxylic acid (H3BTC) were dissolved in ionized water and n-octanol separately, and polyvinylidene fluoride (PVDF) films were laid at the interface of two immiscible solvents. As a result, Cu-BTC was generated and readily self-assembled inside the PVDF films. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA) and the Brunauer-Emmett-Teller (BET) method were used to characterize Cu-BTC/PVDF hybrid membranes, and Congo red (CR) was selected as the target dye to evaluate the surface adsorption activity of the hybrid membranes. Batch adsorption tests under various conditions were conducted to optimize the adsorption capacity, adsorption kinetics, isotherms and thermodynamics, which were analyzed to further explore the adsorption behavior. Based on this, the adsorption mechanism was discussed. It is worth noting that because of the π-π stacking interaction and hydrogen bonding, an extraordinary adsorption capacity of CR was achieved, and the good separation advantage and the cyclic adsorption performances endow the resulting Cu-BTC/PVDF hybrid membranes with promising applications in the removal of organic dyes from practical wastewater.
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Affiliation(s)
- Defeng Hu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, P. R. China.
| | - Zhongqiao Sun
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, P. R. China.
| | - Yide Han
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, P. R. China.
| | - Hao Meng
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, P. R. China.
| | - Xia Zhang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, P. R. China.
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2
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Mecha AC, Chollom MN, Babatunde BF, Tetteh EK, Rathilal S. Versatile Silver-Nanoparticle-Impregnated Membranes for Water Treatment: A Review. MEMBRANES 2023; 13:432. [PMID: 37103859 PMCID: PMC10143275 DOI: 10.3390/membranes13040432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/04/2023] [Accepted: 04/11/2023] [Indexed: 06/19/2023]
Abstract
Increased affordability, smaller footprint, and high permeability quality that meets stringent water quality standards have accelerated the uptake of membranes in water treatment. Moreover, low pressure, gravity-based microfiltration (MF) and ultrafiltration (UF) membranes eliminate the use of electricity and pumps. However, MF and UF processes remove contaminants by size exclusion, based on membrane pore size. This limits their application in the removal of smaller matter or even harmful microorganisms. There is a need to enhance the membrane properties to meet needs such as adequate disinfection, flux amelioration, and reduced membrane fouling. To achieve these, the incorporation of nanoparticles with unique properties in membranes has potential. Herein, we review recent developments in the impregnation of polymeric and ceramic microfiltration and ultrafiltration membranes with silver nanoparticles that are applied in water treatment. We critically evaluated the potential of these membranes in enhanced antifouling, increased permeability quality and flux compared to uncoated membranes. Despite the intensive research in this area, most studies have been performed at laboratory scale for short periods of time. There is a need for studies that assess the long-term stability of the nanoparticles and the impact on disinfection and antifouling performance. These challenges are addressed in this study and future directions.
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Affiliation(s)
- Achisa C. Mecha
- Renewable Energy, Environment, Nanomaterials, and Water Research Group, Department of Chemical and Process Engineering, Moi University, P.O. Box 3900, Eldoret 30100, Kenya
| | - Martha N. Chollom
- Environmental Pollution and Remediation Research Group, Department of Chemical Engineering, Mangosuthu University of Technology, P.O. Box 12363, Durban 4026, South Africa
| | - Bakare F. Babatunde
- Environmental Pollution and Remediation Research Group, Department of Chemical Engineering, Mangosuthu University of Technology, P.O. Box 12363, Durban 4026, South Africa
| | - Emmanuel K. Tetteh
- Green Engineering Research Group, Department of Chemical Engineering, Faculty of Engineering and the Built Environment, Durban University of Technology, P.O. Box 1334, Durban 4001, South Africa
| | - Sudesh Rathilal
- Green Engineering Research Group, Department of Chemical Engineering, Faculty of Engineering and the Built Environment, Durban University of Technology, P.O. Box 1334, Durban 4001, South Africa
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3
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Taghipour A, Rahimpour A, Rastgar M, Sadrzadeh M. Ultrasonically synthesized MOFs for modification of polymeric membranes: A critical review. ULTRASONICS SONOCHEMISTRY 2022; 90:106202. [PMID: 36274415 PMCID: PMC9593890 DOI: 10.1016/j.ultsonch.2022.106202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/05/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Metal-organic framework (MOF) membranes hold the promise for energy-efficient separation processes. These nanocrystalline compounds can effectively separate materials with different sizes and shapes at a molecular level. Furthermore, MOFs are excellent candidates for improving membrane permeability and/or selectivity due to their unique properties, such as high specific area and special wettability. Generally, MOFs can be used as fillers in mixed matrix membranes (MMMs) or incorporated onto the membrane surface to modify the top layer. Characteristics of the MOFs, and correspondingly, the properties of the MOF-based membranes, are majorly affected by their production technique. This critical review discusses the sonication technique for MOF production and the opportunities and challenges of using MOF for making membranes. Effective parameters on the characteristics of the synthesized MOFs, such as sonication time and power, were discussed in detail. Although the ultrasonically synthesized MOFs have shown great potential in the fabrication/modification of membranes for gas and liquid separation/purification, so far, no comprehensive and critical review has been published to clarify such accomplishments and technological gaps for the future research direction. This paper aims to review the most recent research conducted on ultrasonically synthesized MOF for the modification of polymeric membranes. Recommendations are provided with the intent of identifying the potential future works to explore the influential sonication parameters.
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Affiliation(s)
- Amirhossein Taghipour
- Department of Mechanical Engineering, 10-367 Donadeo Innovation Center for Engineering, Advanced Water Research Lab (AWRL), University of Alberta, Edmonton AB T6G 1H9, Canada
| | - Ahmad Rahimpour
- Department of Mechanical Engineering, 10-367 Donadeo Innovation Center for Engineering, Advanced Water Research Lab (AWRL), University of Alberta, Edmonton AB T6G 1H9, Canada.
| | - Masoud Rastgar
- Department of Mechanical Engineering, 10-367 Donadeo Innovation Center for Engineering, Advanced Water Research Lab (AWRL), University of Alberta, Edmonton AB T6G 1H9, Canada
| | - Mohtada Sadrzadeh
- Department of Mechanical Engineering, 10-367 Donadeo Innovation Center for Engineering, Advanced Water Research Lab (AWRL), University of Alberta, Edmonton AB T6G 1H9, Canada.
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4
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A novel Cu-BTC@PVA/PVDF Janus membrane with underwater-oleophobic/hydrophobic asymmetric wettability for anti-fouling membrane distillation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121807] [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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5
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Thong CH, Priyanga N, Ng FL, Pappathi M, Periasamy V, Phang SM, Gnana kumar G. Metal organic frameworks (MOFs) as potential anode materials for improving power generation from algal biophotovoltaic (BPV) platforms. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.07.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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6
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Zahed MA, Salehi S, Tabari Y, Farraji H, Ataei-Kachooei S, Zinatizadeh AA, Kamali N, Mahjouri M. Phosphorus removal and recovery: state of the science and challenges. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:58561-58589. [PMID: 35780273 DOI: 10.1007/s11356-022-21637-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
Phosphorus is one of the main nutrients required for all life. Phosphorus as phosphate form plays an important role in different cellular processes. Entrance of phosphorus in the environment leads to serious ecological problems including water quality problems and soil pollution. Furthermore, it may cause eutrophication as well as harmful algae blooms (HABs) in aquatic environments. Several physical, chemical, and biological methods have been presented for phosphorus removal and recovery. In this review, there is an overview of phosphorus role in nature provided, available removal processes are discussed, and each of them is explained in detail. Chemical precipitation, ion exchange, membrane separation, and adsorption can be listed as the most used methods. Identifying advantages of these technologies will allow the performance of phosphorus removal systems to be updated, optimized, evaluate the treatment cost and benefits, and support select directions for further action. Two main applications of biochar and nanoscale materials are recommended.
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Affiliation(s)
| | - Samira Salehi
- Department of Health, Safety and Environment, Petropars Company, Tehran, Iran.
| | - Yasaman Tabari
- Faculty of Sciences and Advanced Technologies, Science and Culture University, Tehran, Iran
| | - Hossein Farraji
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch, New Zealand
| | | | - Ali Akbar Zinatizadeh
- Faculty of Chemistry, Department of Applied Chemistry, Environmental Research Center (ERC), Razi University, Kermanshah, 67144-14971, Iran
- Department of Environmental Sciences, College of Agriculture and Environmental Sciences, University of South Africa, P.O. Box 392, Florida, 1710, South Africa
| | - Nima Kamali
- Faculty of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Mahjouri
- Department of Environmental Engineering, University of Tehran, Kish International Campus, Tehran, Iran
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7
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Khalili M, Razmjou A, Shafiei R, Shahavi MH, Li MC, Orooji Y. High durability of food due to the flow cytometry proved antibacterial and antifouling properties of TiO 2 decorated nanocomposite films. Food Chem Toxicol 2022; 168:113291. [PMID: 35870732 DOI: 10.1016/j.fct.2022.113291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/23/2022] [Accepted: 07/10/2022] [Indexed: 01/18/2023]
Abstract
Although polymeric membrane has superior properties, its applications in biomedical and food industrial fields are minimal. Biofouling is a significant concern in the membrane, created from particular interactions between the membrane and untreated water content. This research showed that a careful superhydrophilic modification of polyethersulfone membrane could address those drawbacks that have hindered their utility. Hence, a combination of chemical and physical modification showed far-reaching effects on surface behavior, affecting manifold aspects of its bacterial attachment, protein adsorption resistance, and hydrophilicity. The contact angle measurement results decreased from 30° to 0° in 26 s, and surface free energy increased by 33%, demonstrating the shifting surface wettability behavior toward the Superhydrophilicity. Besides, increasing the average surface roughness on the nanoscale and forming 70-110 nm jagged structures results in a marked reduction in protein adsorption, bacterial adhesion, and biofouling formation, confirmed by the results of Flow cytometry analysis and microtiter plate assay. An improved understanding of antifouling and antibacterial properties will greatly assist in food industries since it can be applied to enhance the durability of food and chemical materials. This is important as it gives us a simple way of improving packing reliability, reducing costs and amounts of undesirable waste products.
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Affiliation(s)
- Mahsa Khalili
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, 73441-81746, Iran
| | - Amir Razmjou
- School of Engineering, Edith Cowan University (ECU), Perth, Australia; UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia.
| | - Rasoul Shafiei
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, 73441-81746, Iran
| | - Mohammad Hassan Shahavi
- Department of Nanotechnology, Faculty of Engineering Modern Technologies, Amol University of Special Modern Technologies (AUSMT), Amol, Iran
| | - Mei-Chun Li
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, Jiangsu, PR China; School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong, 266580, China
| | - Yasin Orooji
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, Jiangsu, PR China.
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8
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Rameesha L, Rana D, Kaleekkal NJ, Nagendran A. Efficacy of MOF-199 in improvement of permeation, morphological, antifouling and antibacterial characteristics of polyvinylidene fluoride membranes. NEW J CHEM 2022. [DOI: 10.1039/d2nj00005a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal–organic frameworks (MOFs) are widely explored for advances in hybrid membranes because of their bonding and fondness in polymers.
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Affiliation(s)
- Laila Rameesha
- Polymeric Materials Research Lab, PG & Research Department of Chemistry, Alagappa Government Arts College, Karaikudi – 630 003, India
| | - Dipak Rana
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur St., Ottawa, ON, K1N 6N5, Canada
| | - Noel Jacob Kaleekkal
- Department of Chemical Engineering, National Institute of Technology Calicut (NITC), Kozhikode, India
| | - Alagumalai Nagendran
- Polymeric Materials Research Lab, PG & Research Department of Chemistry, Alagappa Government Arts College, Karaikudi – 630 003, India
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9
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Pettinari C, Pettinari R, Di Nicola C, Tombesi A, Scuri S, Marchetti F. Antimicrobial MOFs. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214121] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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10
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Multifunctional composite membranes incorporated by SiO2@CuFe2O4 nanocomposite for high dye removal, antibacterial and antifouling properties. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2021.03.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Le T, Chen X, Dong H, Tarpeh W, Perea-Cachero A, Coronas J, Martin SM, Mohammad M, Razmjou A, Esfahani AR, Koutahzadeh N, Cheng P, Kidambi PR, Esfahani MR. An Evolving Insight into Metal Organic Framework-Functionalized Membranes for Water and Wastewater Treatment and Resource Recovery. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00543] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Tin Le
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Xi Chen
- Department of Chemical Engineering, Stanford University, Stanford, California 94305-6104, United States
| | - Hang Dong
- Department of Chemical Engineering, Stanford University, Stanford, California 94305-6104, United States
| | - William Tarpeh
- Department of Chemical Engineering, Stanford University, Stanford, California 94305-6104, United States
| | - Adelaida Perea-Cachero
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50018, Spain
- Chemical and Environmental Engineering Department, Universidad de Zaragoza, Zaragoza, 50018, Spain
| | - Joaquín Coronas
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50018, Spain
- Chemical and Environmental Engineering Department, Universidad de Zaragoza, Zaragoza, 50018, Spain
| | - Stephen M. Martin
- Department of Chemical Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Munirah Mohammad
- Centre for Technology in Water and Wastewater, University of Technology Sydney, Sydney, New South Wales 2007, Australia
| | - Amir Razmjou
- Centre for Technology in Water and Wastewater, University of Technology Sydney, Sydney, New South Wales 2007, Australia
- UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Amirsalar R. Esfahani
- Department of Mechanical Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, United States
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0002, United States
| | - Negin Koutahzadeh
- Environmental Health & Safety, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Peifu Cheng
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37212, United States
| | - Piran R. Kidambi
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37212, United States
| | - Milad Rabbani Esfahani
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, United States
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12
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Membrane-Supported Layered Coordination Polymer as an Advanced Sustainable Catalyst for Desulfurization. Molecules 2021; 26:molecules26092404. [PMID: 33919057 PMCID: PMC8122353 DOI: 10.3390/molecules26092404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/09/2021] [Accepted: 04/16/2021] [Indexed: 11/17/2022] Open
Abstract
The application of a catalytic membrane in the oxidative desulfurization of a multicomponent model diesel formed by most refractory sulfur compounds present in fuel is reported here for the first time. The catalytic membrane was prepared by the impregnation of the active lamellar [Gd(H4nmp)(H2O)2]Cl·2H2O (UAV-59) coordination polymer (CP) into a polymethyl methacrylate (PMMA, acrylic glass) supporting membrane. The use of the catalytic membrane in the liquid–liquid system instead of a powder catalyst arises as an enormous advantage associated with the facility of catalyst handling while avoiding catalyst mass loss. The optimization of various parameters allowed to achieve a near complete desulfurization after 3 h under sustainable conditions, i.e., using an aqueous H2O2 as oxidant and an ionic liquid as extraction solvent ([BMIM]PF6, 1:0.5 ratio diesel:[BMIM]PF6). The performance of the catalytic membrane and of the powdered UAV-59 catalyst was comparable, with the advantage that the former could be recycled successfully for a higher number of desulfurization cycles without the need of washing and drying procedures between reaction cycles, turning the catalytic membrane process more cost-efficient and suitable for future industrial application.
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13
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Keyikoglu R, Karatas O, Rezania H, Kobya M, Vatanpour V, Khataee A. A review on treatment of membrane concentrates generated from landfill leachate treatment processes. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118182] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Sharma U, Shalini S, Basu S, Saravanan P, Jang M. Active layer modification of commercial nanofiltration membrane using
CuBTC
/
PVA
matrix for improved surface and separation characteristics. J Appl Polym Sci 2021. [DOI: 10.1002/app.50508] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Uttkarshni Sharma
- Environmental Nanotechnology Laboratory, Department of Environmental Science and Engineering Indian Institute of Technology (ISM) Dhanbad India
| | - Shweta Shalini
- Environmental Nanotechnology Laboratory, Department of Environmental Science and Engineering Indian Institute of Technology (ISM) Dhanbad India
| | - Subhankar Basu
- Department of Applied Science and Humanities National Institute of Foundry and Forge Technology Ranchi Jharkhand India
| | - Pichiah Saravanan
- Environmental Nanotechnology Laboratory, Department of Environmental Science and Engineering Indian Institute of Technology (ISM) Dhanbad India
| | - Min Jang
- Department of Environmental Engineering Kwangwoon University Seoul South Korea
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15
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Makhetha T, Moutloali R. Incorporation of a novel Ag–Cu@ZIF-8@GO nanocomposite into polyethersulfone membrane for fouling and bacterial resistance. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118733] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Aghapour Aktij S, Taghipour A, Rahimpour A, Mollahosseini A, Tiraferri A. A critical review on ultrasonic-assisted fouling control and cleaning of fouled membranes. ULTRASONICS 2020; 108:106228. [PMID: 32717532 DOI: 10.1016/j.ultras.2020.106228] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 01/18/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
Fouling is one of the most challenging problems impacting the performance of membrane-based separation technology. In recent years, ultrasound have been widely applied as an unconventional method to control membrane fouling, as well as to enhance membrane cleaning. The aim of the present work is to review the current literature and the recent developments related to the use of ultrasound as an innovative and alternative approach to improve the fouling behavior of membrane separation processes. The theory underlying ultrasonic-assisted phenomena is reviewed, together with operational factors that influence the effectiveness of the ultrasound treatment, such as frequency, power intensity, pressure, temperature, pH, and operation mode. Ultrasound irradiation effectively aids the cleaning of contaminated surfaces and enhances the permeate flux, owing to cavitation phenomena and powerful convective currents, associated with secondary phenomena, such as microstreamers, shock waves, and heating. However, the lifetime of the membranes should be carefully evaluated when applying ultrasonication as a technique of cleaning or controlling membrane fouling. Indeed, the integrity of membranes after sonication and the control of erosion produced by high ultrasonic intensities are key issues hindering the scale-up of this approach in the membrane industry. This reviews highlights the topics requiring more investigations, specifically to evaluate the economic aspects of ultrasonic assisted fouling control and cleaning in membrane processes.
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Affiliation(s)
- Sadegh Aghapour Aktij
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada; Department of Mechanical Engineering, 10-367 Donadeo Innovation Center for Engineering, Advanced Water Research Lab (AWRL), University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Amirhossein Taghipour
- Department of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran
| | - Ahmad Rahimpour
- Department of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran; Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy; Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy.
| | - Arash Mollahosseini
- Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, Canada
| | - Alberto Tiraferri
- Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy.
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