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Khaleel SR, Ibrahim SS, Criscuoli A, Figoli A, Lawal DU, Alsalhy QF. Influence of Silane Treatment on CNM/PAC/PVDF Properties and Performance for Water Desalination by VMD. MEMBRANES 2025; 15:104. [PMID: 40277974 PMCID: PMC12028725 DOI: 10.3390/membranes15040104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2025] [Revised: 03/19/2025] [Accepted: 03/21/2025] [Indexed: 04/26/2025]
Abstract
Vacuum membrane distillation (VMD) is a promising process for water desalination. However, it suffers some obstacles, such as fouling and wetting, due to the inadequate hydrophobicity of the membrane and high vacuum pressure on the permeate side. Therefore, improving surface hydrophobicity and roughness is important. In this study, the effect of 1H,1H,2H,2H-Perfluorodecyltriethoxysilane (PFTES) on the morphology and performance of CNM/PAC/PVDF membranes at various concentrations was investigated for the first time. Membrane characteristics such as FTIR, XRD, FE-SEM, EDX, contact angle, and hydrophobicity before and after modification were analyzed and tested using VMD for water desalination. The results showed that the membrane coated with 1 wt.% PFTES had a higher permeate flux and lower rejection than the membranes coated with the 2 wt.% PFTES. The 2 wt.% PFTES enhanced the contact angle to 117° and increased the salt rejection above 99.9%, with the permeate flux set to 23.2 L/m2·h and at a 35 g/L NaCl feed solution, 65 °C feed temperature, a 0.6 L/min feed flow rate, and 21 kPa (abs) vacuum pressure. This means that 2 wt.% PFTES-coated PVDF membranes exhibited slightly lower permeate flux with higher hydrophobicity, salt rejection, and stability over long-term operation. These outstanding results indicate the potential of the novel CNM/PAC/PVDF/PFTES membranes for saline water desalination. Moreover, this study presents useful guidance for the enhancement of membrane structures and physical properties in the field of saline water desalination using porous CNM/PAC/PVDF/PFTES membranes.
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Affiliation(s)
- Samraa R. Khaleel
- Membrane Technology Research Unit, Chemical Engineering Department, University of Technology-Iraq, Alsinaa Street 52, Baghdad 10066, Iraq; (S.R.K.); (S.S.I.)
| | - Salah S. Ibrahim
- Membrane Technology Research Unit, Chemical Engineering Department, University of Technology-Iraq, Alsinaa Street 52, Baghdad 10066, Iraq; (S.R.K.); (S.S.I.)
| | - Alessandra Criscuoli
- Institute on Membrane Technology (CNR-ITM), Via P. Bucci 17/C, 87036 Rende, CS, Italy;
| | - Alberto Figoli
- Institute on Membrane Technology (CNR-ITM), Via P. Bucci 17/C, 87036 Rende, CS, Italy;
| | - Dahiru U. Lawal
- Interdisciplinary Research Center for Membrane and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia;
- Mechanical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Qusay F. Alsalhy
- Membrane Technology Research Unit, Chemical Engineering Department, University of Technology-Iraq, Alsinaa Street 52, Baghdad 10066, Iraq; (S.R.K.); (S.S.I.)
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2
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Moreno D, Nelson H, Cary G, Parker D, Skaggs P. Thermodynamic Evaluation of Electrode Storage for Capacitive Deionization. ACS OMEGA 2025; 10:10139-10151. [PMID: 40124035 PMCID: PMC11923673 DOI: 10.1021/acsomega.4c08707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2024] [Revised: 12/27/2024] [Accepted: 02/25/2025] [Indexed: 03/25/2025]
Abstract
This study details the development of a computational adsorption model for predicting thermodynamic adsorption parameters for capacitive deionization (CDI) processes. To do this, multiple starting concentrations and temperatures are needed to predict the best fit value. This is first demonstrated experimentally using an in-house CDI cell with custom heaters, and determining maximum adsorption capabilities for a selected range of conditions. This has been done previously for CDI in the published literature, but here, experimental results are incorporated to provide the best fit to a computational model, which runs transient CDI tests in batch mode over multiple concentrations and temperatures to determine adsorption parameters. This saves the eventual challenge of having to run many different experiments independently to determine such adsorption parameters, the accuracy of which may be questionable subject to different experimental errors. With the model, many parameters can be quickly scanned at once, and adsorption parameters can be determined based on the concentration and temperature values selected, as well as other operating conditions, such as voltage and cell resistance. The computational isotherms are generated using the Gouy-Chapman-Stern (GCS) model, which is common for the lower concentration values used for CDI. The model also considers fixed and mobile chemical charges for enhanced CDI (ECDI) and Faradaic CDI (FaCDI), respectively, which have been examined as alternatives to improve CDI performance. While primarily proof-of-concept, the results obtained here demonstrate the benefits in adsorption capabilities, and energy savings obtained here demonstrate benefits in adsorption capabilities and energy savings for FaCDI, coinciding with higher enthalpies and entropies of adsorption. The model also serves as a benchmark in the future for how the results can be further explored and better fits can be obtained experimentally to confirm stability in the thermodynamic values.
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Affiliation(s)
- Daniel Moreno
- Missouri State University, Springfield, Missouri 65897, United States
| | - Hunter Nelson
- Missouri State University, Springfield, Missouri 65897, United States
| | - Grant Cary
- Missouri State University, Springfield, Missouri 65897, United States
| | - Devon Parker
- Missouri State University, Springfield, Missouri 65897, United States
| | - Pablo Skaggs
- Missouri State University, Springfield, Missouri 65897, United States
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Ali E, Orfi J, Mokraoui S. Hybrid Mechanical Vapor Compression and Membrane Distillation System: Concept and Analysis. MEMBRANES 2025; 15:69. [PMID: 40137021 PMCID: PMC11944214 DOI: 10.3390/membranes15030069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2025] [Revised: 02/12/2025] [Accepted: 02/24/2025] [Indexed: 03/27/2025]
Abstract
The concept of integrating mechanical vapor compression (MVC) with direct contact membrane distillation (DCMD) is presented and analyzed. The hybrid system utilizes the DCMD to harvest the thermal energy of the MVC reject brine to preheat a portion of the seawater intake and simultaneously produce additional fresh water. Based on the operating temperature, the hybrid system requires specific energy consumption between 9.6 to 24.3 kWh/m3, which is equivalent to 25 to 37% less than the standalone MVC. Similarly, the freshwater production of the hybrid system can range between 1.03 and 1.1 kg/h, which is equivalent to a 3% and 10% increase relative to the standalone MVC when operating at brine temperatures of 50 and 90 °C, respectively. However, this enhancement is achieved at the expense of an average of 60% larger total surface area. This is partially due to the incorporation of the surface area of the MD modules and mostly to reduced temperature differences. Altering the permeate-to-feed ratio of the DCMD module led to a marginal change in the overall production without any enhancement in the compression power consumption. Increasing the MD module length by 50% resulted in a 3% enlargement in the overall production rate and a 10% reduction in power consumption. A modified hybrid structure that additionally utilizes the distillate heat is sought. A 5% increase in water production at the expense of a 45% rise in the specific compression energy of the modified structure over the original hybrid system is obtained.
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Affiliation(s)
- Emad Ali
- Chemical Engineering Department, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia;
| | - Jamel Orfi
- Mechanical Engineering Department, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia;
| | - Salim Mokraoui
- Chemical Engineering Department, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia;
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4
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Chaúque BJM, de Amorim Nascimento FL, Silva KJS, Hoff RB, Goldim JR, Rott MB, Zanette RA, Verruck S. Solar-based technologies for removing potentially toxic metals from water sources: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2025; 32:3503-3530. [PMID: 39821874 DOI: 10.1007/s11356-025-35897-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Accepted: 01/02/2025] [Indexed: 01/19/2025]
Abstract
Technological advances have led to a proportional increase in the deposition of contaminants across various environmental compartments, including water sources. Heavy metals, also known as potentially toxic metals, are of particular concern due to their significant harmful impacts on environmental and human health. Among the available methods for mitigating the threat of these metals in water, solar radiation-based technologies stand out for their cleanliness, cost-effectiveness, and efficiency in removing or reducing the toxicity of heavy metals. The performance and productivity of these methods in removing heavy metals such as arsenic (As), chromium (Cr), mercury (Hg), and uranium (U) from water still need to be comprehensively synthesized. Thus, this work aims to address that gap. The performance, potential, and challenges of real-world applications of conventional solar stills (CSS), membrane-based solar stills, and solar heterogeneous photocatalysis are concisely summarized and critically reviewed. CSS and membrane-based stills are highly effective (efficacy > 98%) in removing and capturing heavy metals from water. However, structural and functional improvements are needed to enhance productivity (especially for CSS) and usability in real-world environmental remediation and drinking water supply scenarios. Solar heterogeneous photocatalysis is highly effective in removing and/or converting As, Cr, Hg, and U into their non-toxic or less toxic forms, which subsequent processes can easily remove. Further research is necessary to evaluate the safety of photocatalytic materials, their integration into scalable solar reactors, and their usability in real-world environmental remediation applications.
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Affiliation(s)
- Beni Jequicene Mussengue Chaúque
- Mestrado Profissional Em Pesquisa Clínica, Master's Program in Clinical Research (MPPC) at the Hospital de Clínicas de Porto Alegre (HCPA) (CAPES Pilot Program), Porto Alegre, Rio Grande Do Sul, Brazil.
- Postgraduate Program in Biological Sciences: Pharmacology and Therapeutics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande Do Sul, Brazil.
- Center of Studies in Science and Technology (NECET), Biology Course, Universidade Rovuma, Niassa, Lichinga, Mozambique.
| | - Francisco Lucas de Amorim Nascimento
- Departamento de Zootecnia E Desenvolvimento Rural, Universidade Federal de Santa Catarina, Rod. Admar Gonzaga, 1346, Itacorubi, Florianópolis, SC, 88034-001, Brazil
| | | | - Rodrigo Barcellos Hoff
- Advanced Laboratory Section of Santa Catarina (SLAV/SC), Ministry of Agriculture and Livestock (MAPA), R. João Grumiche, 117 - Bloco T, São José, Santa Catarina, 88102-600, Brazil
| | - José Roberto Goldim
- Master's Program in Clinical Research (MPPC) at the Hospital de Clínicas de Porto Alegre (HCPA) (CAPES Pilot Program), Porto Alegre, Rio Grande Do Sul, Brazil
| | - Marilise Brittes Rott
- Protozoology Laboratory, Microbiology Immunology and Parasitology Department, Basic Health Sciences Institute, Federal University of Rio Grande Do Sul, Ramiro Barcelos Street, N 2600, Porto Alegre, Rio Grande Do Sul, 90035-002, Brazil
| | - Régis Adriel Zanette
- Postgraduate Program in Biological Sciences: Pharmacology and Therapeutics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande Do Sul, Brazil
| | - Silvani Verruck
- Departamento de Ciência E Tecnologia de Alimentos, Universidade Federal de Santa Catarina, Rod. Admar Gonzaga, 1346, Itacorubi, Florianópolis, Santa Catarina, 88034-001, Brazil
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Yan H, Wang P, Li L, Zhao Z, Xiang Y, Guo H, Yang B, Yang X, Li K, Li Y, He X, You Y. Development Status of Solar-Driven Interfacial Steam Generation Support Layer Based on Polymers and Biomaterials: A Review. Polymers (Basel) 2024; 16:2427. [PMID: 39274060 PMCID: PMC11397863 DOI: 10.3390/polym16172427] [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: 07/05/2024] [Revised: 08/23/2024] [Accepted: 08/23/2024] [Indexed: 09/16/2024] Open
Abstract
With the increasing shortage of water resources and the aggravation of water pollution, solar-driven interfacial steam generation (SISG) technology has garnered considerable attention because of its low energy consumption, simple operation, and environmental friendliness. The popular multi-layer SISG evaporator is composed of two basic structures: a photothermal layer and a support layer. Herein, the support layer underlies the photothermal layer and carries out thermal management, supports the photothermal layer, and transports water to the evaporation interface to improve the stability of the evaporator. While most research focuses on the photothermal layer, the support layer is typically viewed as a supporting object for the photothermal layer. This review focuses on the support layer, which is relatively neglected in evaporator development. It summarizes existing progress in the field of multi-layer interface evaporators, based on various polymers and biomaterials, along with their advantages and disadvantages. Specifically, mainly polymer-based support layers are reviewed, including polymer foams, gels, and their corresponding functional materials, while biomaterial support layers, including natural plants, carbonized biomaterials, and other innovation biomaterials are not. Additionally, the corresponding structure design strategies for the support layer were also involved. It was found that the selection and optimal design of the substrate also played an important role in the efficient operation of the whole steam generation system. Their evolution and refinement are vital for advancing the sustainability and effectiveness of interfacial evaporation technology. The corresponding potential future research direction and application prospects of support layer materials are carefully presented to enable effective responses to global water challenges.
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Affiliation(s)
- Haipeng Yan
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Pan Wang
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Lingsha Li
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Zixin Zhao
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Yang Xiang
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Haoqian Guo
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Boli Yang
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Xulin Yang
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Kui Li
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Ying Li
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Xiaohong He
- School of Automation, Chengdu University of Information Technology, Chengdu 610225, China
| | - Yong You
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
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Shakayeva AK, Yeszhanov AB, Borissenko AN, Kassymzhanov MT, Zhumazhanova AT, Khlebnikov NA, Nurkassimov AK, Zdorovets MV, Güven O, Korolkov IV. Surface Modification of Polyethylene Terephthalate Track-Etched Membranes by 2,2,3,3,4,4,5,5,6,6,7,7-Dodecafluoroheptyl Acrylate for Application in Water Desalination by Direct Contact Membrane Distillation. MEMBRANES 2024; 14:145. [PMID: 39057653 PMCID: PMC11278615 DOI: 10.3390/membranes14070145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 06/11/2024] [Accepted: 06/20/2024] [Indexed: 07/28/2024]
Abstract
In this work, the surfaces of poly (ethylene terephthalate) track-etched membranes (PET TeMs) with pore sizes of 670-1310 nm were hydrophobized with 2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptyl acrylate (DFHA) by photoinitiated graft polymerization. Attenuated total reflection FTIR spectroscopy (ATR-FTIR), scanning electron microscopy (SEM) coupled to an energy-dispersive X-ray spectrometer (EDX), and contact angle measurements were used to identify and characterize the TeMs. The optimal parameters for graft polymerization were determined as follows: polymerization time of 60 min, monomer concentration of 30%, and distance from the UV source of 7 cm. The water contact angle of the modified membranes reached 97°, which is 51° for pristine membranes. The modified membranes were tested for water desalination using direct contact membrane distillation (DCMD) method. The effects of membrane pore size, the degree of grafting, and salt concentration on the performance of membrane distillation process were investigated. According to the results obtained, it has been concluded that large pore size hydrophobic TeMs modified by using DFHA could be used for desalinating water.
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Affiliation(s)
- Aigerim Kh. Shakayeva
- The Institute of Nuclear Physics, Ibragimov Str., 1, Almaty 050032, Kazakhstan; (A.K.S.); (A.B.Y.)
| | - Arman B. Yeszhanov
- The Institute of Nuclear Physics, Ibragimov Str., 1, Almaty 050032, Kazakhstan; (A.K.S.); (A.B.Y.)
| | | | - Murat T. Kassymzhanov
- JSC “Park of Nuclear Technologies”, Kurchatova Str. 18/1, Kurchatov 071100, Kazakhstan
| | - Ainash T. Zhumazhanova
- The Institute of Nuclear Physics, Ibragimov Str., 1, Almaty 050032, Kazakhstan; (A.K.S.); (A.B.Y.)
| | | | - A. K. Nurkassimov
- JSC “Park of Nuclear Technologies”, Kurchatova Str. 18/1, Kurchatov 071100, Kazakhstan
| | - Maxim V. Zdorovets
- The Institute of Nuclear Physics, Ibragimov Str., 1, Almaty 050032, Kazakhstan; (A.K.S.); (A.B.Y.)
- JSC “Park of Nuclear Technologies”, Kurchatova Str. 18/1, Kurchatov 071100, Kazakhstan
| | - Olgun Güven
- Department of Chemistry, Hacettepe University, Ankara 06800, Turkey;
| | - Ilya V. Korolkov
- The Institute of Nuclear Physics, Ibragimov Str., 1, Almaty 050032, Kazakhstan; (A.K.S.); (A.B.Y.)
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7
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Jamoussi B, Al-Sharif MNM, Gzara L, Organji H, Almeelbi TB, Chakroun R, Al-Mur BA, Al Makishah NHM, Madkour MHF, Aloufi FA, Halawani RF. Hybrid Zinc Phthalocyanine/PVDF-HFP System for Reducing Biofouling in Water Desalination: DFT Theoretical and MolDock Investigations. Polymers (Basel) 2024; 16:1738. [PMID: 38932087 PMCID: PMC11207365 DOI: 10.3390/polym16121738] [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: 05/28/2024] [Revised: 06/13/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024] Open
Abstract
Fouling and biofouling remain significant challenges in seawater desalination plants. One practical approach to address these issues is to develop anti-biofouling membranes. Therefore, novel hybrid zinc phthalocyanine/polyvinylidene fluoride-co-hexafluoropropylene (Zn(4-PPOx)4Pc/PVDF-HFP) membranes were prepared by electrospinning to evaluate their properties against biofouling. The hybrid nanofiber membrane was characterized by atomic force microscopy (AFM), attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy, and contact angle measurements. The theoretical calculations of PVDF-HFP, Zn(4-PPOx)4Pc), and Zn(4-PPOx)4Pc/PVDF-HFP nanofibers were performed using a hybrid functional RB3LYP and the 6-31 G (d,p) basis set, employing Gaussian 09. DFT calculations illustrated that the calculated physical and electronic parameters ensured the feasibility of the interaction of PVDF-HFP with Zn(4-PPOx)4Pc via a halogen-hydrogen bond, resulting in a highly stable and remarkably reactive structure. Moreover, molecular electrostatic potential (MEP) maps were drawn to identify the reactive regions of the Zn(4-PPOx)4Pc and PVDF-HFP/Zn(4-PPOx)4Pc nanofibers. Molecular docking analysis revealed that Zn(4-PPOx)4Pc has highest binding affinity (-8.56 kcal/mol) with protein from S. aureus (1N67) mainly with ten amino acids (ASP405, LYS374, GLU446, ASN406, ALA441, TYR372, LYS371, TYR448, LYS374, and ALA442). These findings highlight the promising potential of Zn(4-PPOx) 4Pc/PVDF-HFP nanocomposite membranes in improving the efficiency of water desalination by reducing biofouling and providing antibacterial properties.
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Affiliation(s)
- Bassem Jamoussi
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.N.M.A.-S.); (T.B.A.); (R.C.); (B.A.A.-M.); (N.H.M.A.M.); (M.H.F.M.); (F.A.A.); (R.F.H.)
| | - Mohhamed Naif M. Al-Sharif
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.N.M.A.-S.); (T.B.A.); (R.C.); (B.A.A.-M.); (N.H.M.A.M.); (M.H.F.M.); (F.A.A.); (R.F.H.)
| | - Lassaad Gzara
- Center of Excellence in Desalination Technology, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (L.G.); (H.O.)
| | - Hussam Organji
- Center of Excellence in Desalination Technology, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (L.G.); (H.O.)
| | - Talal B. Almeelbi
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.N.M.A.-S.); (T.B.A.); (R.C.); (B.A.A.-M.); (N.H.M.A.M.); (M.H.F.M.); (F.A.A.); (R.F.H.)
| | - Radhouane Chakroun
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.N.M.A.-S.); (T.B.A.); (R.C.); (B.A.A.-M.); (N.H.M.A.M.); (M.H.F.M.); (F.A.A.); (R.F.H.)
| | - Bandar A. Al-Mur
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.N.M.A.-S.); (T.B.A.); (R.C.); (B.A.A.-M.); (N.H.M.A.M.); (M.H.F.M.); (F.A.A.); (R.F.H.)
| | - Naief H. M. Al Makishah
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.N.M.A.-S.); (T.B.A.); (R.C.); (B.A.A.-M.); (N.H.M.A.M.); (M.H.F.M.); (F.A.A.); (R.F.H.)
| | - Mohamed H. F. Madkour
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.N.M.A.-S.); (T.B.A.); (R.C.); (B.A.A.-M.); (N.H.M.A.M.); (M.H.F.M.); (F.A.A.); (R.F.H.)
| | - Fahed A. Aloufi
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.N.M.A.-S.); (T.B.A.); (R.C.); (B.A.A.-M.); (N.H.M.A.M.); (M.H.F.M.); (F.A.A.); (R.F.H.)
| | - Riyadh F. Halawani
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (M.N.M.A.-S.); (T.B.A.); (R.C.); (B.A.A.-M.); (N.H.M.A.M.); (M.H.F.M.); (F.A.A.); (R.F.H.)
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8
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Sayed MM, Noby H, Zkria A, Mousa HM, Yoshitake T, ElKady M. Engineered eco-friendly composite membranes with superhydrophobic/hydrophilic dual-layer for DCMD system. CHEMOSPHERE 2024; 352:141468. [PMID: 38382717 DOI: 10.1016/j.chemosphere.2024.141468] [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: 03/30/2023] [Revised: 01/24/2024] [Accepted: 02/14/2024] [Indexed: 02/23/2024]
Abstract
Considerable advancements have been made in the development of hydrophobic membranes for membrane distillation (MD). Nonetheless, the environmentally responsible disposal of these membranes poses a critical concern due to their synthetic composition. Herein, an eco-friendly dual-layered biopolymer-based membrane was fabricated for water desalination. The membrane was electrospun from two bio-polymeric layers. The top hydrophobic layer comprises polycaprolactone (PCL) and the bottom hydrophilic layer from cellulose acetate (CA). Additionally, silica nanoparticles (SiO2 NPs) were electrosprayed onto the top layer of the dual-layered PCL/CA membrane to enhance the hydrophobicity. The desalination performance of the modified PCL-SiO2/CA membrane was compared with the unmodified PCL/CA membrane using a direct contact membrane distillation (DCMD) unit. Results revealed that silica remarkably improves membrane hydrophobicity. The modified PCL-SiO2/CA membrane demonstrated a significant increase in water contact angle of 152.4° compared to 119° for the unmodified membrane. In addition, PCL-SiO2/CA membrane has a smaller average pore size of 0.23 ± 0.16 μm and an exceptional liquid entry pressure of water (LEPw), which is 3.8 times higher than that of PCL/CA membrane. Moreover, PCL-SiO2/CA membrane achieved a durable permeate flux of 15.6 kg/m2.h, while PCL/CA membrane showed unstable permeate flux decreasing approximately from 25 to 12 kg/m2.h over the DCMD test time. Furthermore, the modified PCL-SiO2/CA membrane achieved a high salt rejection value of 99.97% compared to a low value of 86.2% for the PCL/CA membrane after 24 h continuous DCMD operation. In conclusion, the proposed modified PCL-SiO2/CA dual-layer biopolymeric-based membrane has considerable potential to be used as an environmentally friendly membrane for the MD process.
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Affiliation(s)
- Mostafa M Sayed
- Chemical and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology, Alexandria, 21934, Egypt; Materials Engineering and Design, Faculty of Energy Engineering, Aswan University, Aswan, 81528, Egypt.
| | - H Noby
- Chemical and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology, Alexandria, 21934, Egypt; Materials Engineering and Design, Faculty of Energy Engineering, Aswan University, Aswan, 81528, Egypt
| | - Abdelrahman Zkria
- Department of Applied Science for Electronics and Materials, Kyushu University, Kasuga, Fukuoka, 816-8580, Japan; Department of Physics, Faculty of Science, Aswan University, Aswan, 81528, Egypt
| | - Hamouda M Mousa
- Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena, 83523, Egypt; Faculty of Technological Industry and Energy, Thebes Technological University, Thebes, 85863, Luxor, Egypt
| | - Tsuyoshi Yoshitake
- Department of Applied Science for Electronics and Materials, Kyushu University, Kasuga, Fukuoka, 816-8580, Japan
| | - Marwa ElKady
- Chemical and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology, Alexandria, 21934, Egypt; Fabrication Technology Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technology Applications, Alexandria, 21934, Egypt.
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9
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Bhoumick MC, Paul S, Roy S, Harvey BG, Mitra S. Recovery of Isoamyl Alcohol by Graphene Oxide Immobilized Membrane and Air-Sparged Membrane Distillation. MEMBRANES 2024; 14:49. [PMID: 38392676 PMCID: PMC10890467 DOI: 10.3390/membranes14020049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 02/24/2024]
Abstract
Isoamyl alcohol is an important biomass fermentation product that can be used as a gasoline surrogate, jet fuel precursor, and platform molecule for the synthesis of fine chemicals and pharmaceuticals. This study reports on the use of graphene oxide immobilized membra (GOIMs) for the recovery of isoamyl alcohol from an aqueous matrix. The separation was performed using air-sparged membrane distillation (ASMD). In contrast to a conventional PTFE membrane, which exhibited minimal separation, preferential adsorption on graphene oxide within GOIMs resulted in highly selective isoamyl alcohol separation. The separation factor reached 6.7, along with a flux as high as 1.12 kg/m2 h. Notably, the overall mass transfer coefficients indicated improvements with a GOIM. Optimization via response surfaces showed curvature effects for the separation factor due to the interaction effects. An empirical model was generated based on regression equations to predict the flux and separation factor. This study demonstrates the potential of GOIMs and ASMD for the efficient recovery of higher alcohols from aqueous solutions, highlighting the practical applications of these techniques for the production of biofuels and bioproducts.
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Affiliation(s)
- Mitun Chandra Bhoumick
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Sumona Paul
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Sagar Roy
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Benjamin G Harvey
- Naval Air Warfare Center, Weapons Division, Research Department, Chemistry Division, China Lake, CA 93555, USA
| | - Somenath Mitra
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA
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10
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Yang ZQ, Zhang WB, Yang K, Chen B, Yin Y, Li JJ, Yang JL, Gao Y, Ma XJ. Switchable NaCl cages via a MWCNTs/Ni[Fe(CN) 6] 2 nanocomposite for high performance desalination. NANOSCALE 2023; 15:19330-19338. [PMID: 38009070 DOI: 10.1039/d3nr04410f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
With the application of nanomaterials in seawater desalination technology increasing, the adjustable characteristics of carbon-based nanomaterials make it possible to use multiwalled carbon nanotube (MWCNT) materials in seawater desalination technology. In this study, Ni[Fe(CN)6]2 is loaded onto the inner wall of MWCNTs by the co-precipitation method to prepare MWCNTs with variable pore size, making it a switchable cage for NaCl. During the procedure, most of the Ni[Fe(CN)6]2 is transferred to the outer surface of the MWCNTs after adsorption, and NaCl is stored inside the MWCNTs (which have been proved by characterization); at the same time, Ni can improve the cell stability of Ni[Fe(CN)6]2. The effect of adsorbent reaction time and addition amount on the desalination performance of MWCNTs/Ni[Fe(CN)6]2 has been tested. According to the results, the best desalination performance of MWCNTs/Ni[Fe(CN)6]2 is 1354.6 mg g-1 when the reaction time is 0.5 h and the addition amount is 20 mg. After 3 cycles of adsorption and desorption, its desalting performance decreased to 242.3 mg g-1.
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Affiliation(s)
- Ze-Qin Yang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Wei-Bin Zhang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Kang Yang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Bi Chen
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Yi Yin
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Jia-Jun Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Jing-Lei Yang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Yue Gao
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
| | - Xue-Jing Ma
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China.
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11
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Abdelhakeem E, Monir S, Teaima MHM, Rashwan KO, El-Nabarawi M. State-of-the-Art Review of Advanced Electrospun Nanofiber Composites for Enhanced Wound Healing. AAPS PharmSciTech 2023; 24:246. [PMID: 38030812 DOI: 10.1208/s12249-023-02702-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 11/10/2023] [Indexed: 12/01/2023] Open
Abstract
Wound healing is a complex biological process with four main phases: hemostasis, inflammation, proliferation, and remodeling. Current treatments such as cotton and gauze may delay the wound healing process which gives a demand for more innovative treatments. Nanofibers are nanoparticles that resemble the extracellular matrix of the skin and have a large specific surface area, high porosity, good mechanical properties, controllable morphology, and size. Nanofibers are generated by electrospinning method that utilizes high electric force. Electrospinning device composed of high voltage power source, syringe that contains polymer solution, needle, and collector to collect nanofibers. Many polymers can be used in nanofiber that can be from natural or from synthetic origin. As such, electrospun nanofibers are potential scaffolds for wound healing applications. This review discusses the advanced electrospun nanofiber morphologies used in wound healing that is prepared by modified electrospinning techniques.
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Affiliation(s)
- Eman Abdelhakeem
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El Aini Street, Cairo, 11562, Egypt.
| | - Sawsan Monir
- Production Sector, Semisolid Department, Nile Company for Pharmaceuticals and Chemical Industries, Cairo, Egypt
| | - Mahmoud H M Teaima
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El Aini Street, Cairo, 11562, Egypt
| | - Kareem Omar Rashwan
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, October 6 University, 6th of October City, Giza, Egypt
| | - Mohamed El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El Aini Street, Cairo, 11562, Egypt
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12
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Lawal DU, Abdulazeez I, Alsalhy QF, Usman J, Abba SI, Mansir IB, Sathyamurthy R, Kaleekkal NJ, Imteyaz B. Experimental Investigation of a Plate-Frame Water Gap Membrane Distillation System for Seawater Desalination. MEMBRANES 2023; 13:804. [PMID: 37755226 PMCID: PMC10536650 DOI: 10.3390/membranes13090804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/08/2023] [Accepted: 09/16/2023] [Indexed: 09/28/2023]
Abstract
This study presented a detailed investigation into the performance of a plate-frame water gap membrane distillation (WGMD) system for the desalination of untreated real seawater. One approach to improving the performance of WGMD is through the proper selection of cooling plate material, which plays a vital role in enhancing the gap vapor condensation process. Hence, the influence of different cooling plate materials was examined and discussed. Furthermore, two different hydrophobic micro-porous polymeric membranes of similar mean pore sizes were utilized in the study. The influence of key operating parameters, including the feed water temperature and flow rate, was examined against the system vapor flux and gained output ratio (GOR). In addition, the used membranes were characterized by means of different techniques in terms of surface morphology, liquid entry pressure, water contact angle, pore size distribution, and porosity. Findings revealed that, at all conditions, the PTFE membrane exhibits superior vapor flux and energy efficiency (GOR), with 9.36% to 14.36% higher flux at a 0.6 to 1.2 L/min feed flow rate when compared to the PVDF membrane. The copper plate, which has the highest thermal conductivity, attained the highest vapor flux, while the acrylic plate, which has an extra-low thermal conductivity, recorded the lowest vapor flux. The increasing order of GOR values for different cooling plates is acrylic < HDPE < copper < aluminum < brass < stainless steel. Results also indicated that increasing the feed temperature increases the vapor flux almost exponentially to a maximum flux value of 30.36 kg/m2hr. The system GOR also improves in a decreasing pattern to a maximum value of 0.4049. Moreover, a long-term test showed that the PTFE membrane, which exhibits superior hydrophobicity, registered better salt rejection stability. The use of copper as a cooling plate material for better system performance is recommended, while cooling plate materials with very low thermal conductivities, such as a low thermally conducting polymer, are discouraged.
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Affiliation(s)
- Dahiru U Lawal
- Interdisciplinary Research Centre for Membrane and Water Security (IRC-MWS), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Ismail Abdulazeez
- Interdisciplinary Research Centre for Membrane and Water Security (IRC-MWS), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Qusay F Alsalhy
- Membrane Technology Research Unit, Chemical Engineering Department, University of Technology-Iraq, Alsinaa Street 52, Baghdad 10066, Iraq
| | - Jamilu Usman
- Interdisciplinary Research Centre for Membrane and Water Security (IRC-MWS), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Sani I Abba
- Interdisciplinary Research Centre for Membrane and Water Security (IRC-MWS), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Ibrahim B Mansir
- Department of Mechanical Engineering, College of Engineering in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
- Centre for Energy Research and Training, Ahmadu Bello University, Zaria P.M.B. 1045, Nigeria
| | - Ravishankar Sathyamurthy
- Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
- Interdisciplinary Research Center for Renewable Energy and Power Systems (IRC-REPS), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Noel Jacob Kaleekkal
- Membrane Separation Group, Department of Chemical Engineering, National Institute of Technology (NITC), Calicut 673601, Kerala, India
| | - Binash Imteyaz
- Interdisciplinary Research Center for Renewable Energy and Power Systems (IRC-REPS), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
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13
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Wu Z, Guo F. Finned Tubular Air Gap Membrane Distillation. MEMBRANES 2023; 13:membranes13050498. [PMID: 37233559 DOI: 10.3390/membranes13050498] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/05/2023] [Accepted: 05/07/2023] [Indexed: 05/27/2023]
Abstract
Finned tubular air gap membrane distillation is a new membrane distillation method, and its functional performance, characterization parameters, finned tube structures, and other studies have clear academic and practical application value. Therefore, the tubular air gap membrane distillation experiment modules composed of PTFE membrane and finned tubes were constructed in this work, and three representative air gap structures, including tapered finned tube, flat finned tube, and expanded finned tube, were designed. Membrane distillation experiments were carried out in the form of water cooling and air cooling, and the influences of air gap structures, temperature, concentration, and flow rate on the transmembrane flux were analyzed. The good water-treatment ability of the finned tubular air gap membrane distillation model and the applicability of air cooling for the finned tubular air gap membrane distillation structure were verified. The membrane distillation test results show that with the tapered finned tubular air gap structure, the finned tubular air gap membrane distillation has the best performance. The maximum transmembrane flux of the finned tubular air gap membrane distillation could reach 16.3 kg/m2/h. Strengthening the convection heat transfer between air and fin tube could increase the transmembrane flux and improve the efficiency coefficient. The efficiency coefficient (σ) could reach 0.19 under the condition of air cooling. Compared with the conventional air gap membrane distillation configuration, air cooling configuration for air gap membrane distillation is an effective way to simplify the system design and offers a potential way for the practical applications of membrane distillation on an industrial scale.
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Affiliation(s)
- Zhiqiang Wu
- School of Energy and Power Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China
| | - Fei Guo
- School of Energy and Power Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian 116024, China
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