1
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Zhu Y, Qi BK, Lv HN, Gao Y, Zha SH, An RY, Zhao QS, Zhao B. Preparation of DES lignin-chitosan aerogel and its adsorption performance for dyes, catechin and epicatechin. Int J Biol Macromol 2023; 247:125761. [PMID: 37429341 DOI: 10.1016/j.ijbiomac.2023.125761] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 06/27/2023] [Accepted: 07/07/2023] [Indexed: 07/12/2023]
Abstract
Herein, DES lignin was obtained by pretreatment of grapevine with a deep eutectic solvent (ChCl-LA). A novel chitosan-DES lignin composite aerogel material (CS-LIG aerogel) was prepared to adsorb methylene blue (MB), Congo red (CR), catechin (C), and epicatechin (EC). The CS-LIG aerogel was systematically characterized by modern technological instruments. It was demonstrated that the DES lignin was successfully incorporated and had an important effect on the morphological structure and adsorption of dyes and natural products in the aerogel. The adsorption kinetic models for both adsorbed CR and MB are pseudo-second-order models. Adsorption isotherms followed Langmuir for the adsorption of CR and Freundlich for the adsorption of MB. The π-π interaction and hydrogen bonding of DES lignin aromatic groups in CS-LIG aerogels were responsible for the adsorption of C and EC with 86.42 % and 90.85 % removal rates, respectively. This study opens a new avenue for the high-value utilization of DES lignin and the preparation of chitosan-based composites for the adsorption of dyes and purification of natural products.
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Affiliation(s)
- Yuan Zhu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ben-Kun Qi
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong-Ning Lv
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yu Gao
- Ningxia University, Yinchuan 750021, China
| | - Sheng-Hua Zha
- Beijing Tong Ren Tang Health Pharmaceutical Co., Ltd., Beijing 100085, China
| | - Rong-Yan An
- StateFarm of Ningxia Liquor Industry Co., Ltd., Yinchuan 750021, China
| | - Qing-Sheng Zhao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Bing Zhao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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2
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Construction of chitosan-based supramolecular biofilm material for wound dressing based on natural deep eutectic solvents. Int J Biol Macromol 2023; 236:123768. [PMID: 36812964 DOI: 10.1016/j.ijbiomac.2023.123768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 11/20/2022] [Accepted: 02/15/2023] [Indexed: 02/23/2023]
Abstract
Bacterial infection is still one of the main problems observed in the clinical process of wound healing, so the development of new multifunctional biocompatible materials is an urgent clinical need. A kind of supramolecular biofilm crosslinked by hydrogen bond between natural deep eutectic solvent and chitosan was studied and successfully prepared to reduce bacterial infection. Its killing rates of Staphylococcus aureus and Escherichia coli can reach 98.86 % ± 1.90 % and 99.69 % ± 0.53 %, and it can be degraded in both soil and water, showing excellent biocompatibility and biodegradability. In addition, the supramolecular biofilm material also has the UV barrier property, which can effectively avoid the secondary injury of UV to the wound. Interestingly, the cross-linking effect of hydrogen bond makes the biofilm have a more compact structure and rough surface, and gives the biofilm strong tensile properties. Overall, owing to these unique advantages, NADES-CS supramolecular biofilm has great potential for medical applications, laying the foundation for the realization of sustainable polysaccharide materials.
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3
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Yu J, Xu S, Goksen G, Yi C, Shao P. Chitosan films plasticized with choline-based deep eutectic solvents: UV shielding, antioxidant, and antibacterial properties. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2022]
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4
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Jakubowska E, Gierszewska M, Szydłowska-Czerniak A, Nowaczyk J, Olewnik-Kruszkowska E. Development and characterization of active packaging films based on chitosan, plasticizer, and quercetin for repassed oil storage. Food Chem 2023; 399:133934. [PMID: 35998489 DOI: 10.1016/j.foodchem.2022.133934] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 06/30/2022] [Accepted: 08/09/2022] [Indexed: 10/15/2022]
Abstract
Novel chitosan (Ch) films containing choline chloride and citric acid mixture as plasticizer (deep eutectic solvent, DES) and different amounts of quercetin (QUE) as antioxidant additive were prepared. Physicochemical and mechanical characteristics of the developed Ch/DES/QUE films were studied using FTIR, SEM, and AFM techniques. FTIR spectra revealed the possible interactions between all the components. The surface of the films was dense and rough. The addition of quercetin caused an increase in the tensile strength (TS) and Young's modulus, but significantly decreased the elongation at break. The films containing quercetin showed improved antioxidant activity in relation to Ch/DES film. Finally, the oxidation phenomena of rapeseed oils with and without chitosan films were evaluated as amounts of primary and secondary oxidation products and total oxidation index. The addition of Ch/DES films with quercetin to oil samples successfully retarded secondary lipid oxidation processes and improved its antioxidant activity under the accelerated storage condition.
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Affiliation(s)
- Ewelina Jakubowska
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Department of Physical Chemistry and Physicochemistry of Polymers, 7 Gagarina Street, 87-100 Toruń, Poland; Łukasiewicz Research Network - Industrial Chemistry Institute, 8 Rydygiera Street, 01-793 Warsaw, Poland.
| | - Magdalena Gierszewska
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Department of Physical Chemistry and Physicochemistry of Polymers, 7 Gagarina Street, 87-100 Toruń, Poland.
| | - Aleksandra Szydłowska-Czerniak
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Department of Analytical Chemistry and Applied Spectroscopy, 7 Gagarina Street, 87-100 Toruń, Poland.
| | - Jacek Nowaczyk
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Department of Physical Chemistry and Physicochemistry of Polymers, 7 Gagarina Street, 87-100 Toruń, Poland.
| | - Ewa Olewnik-Kruszkowska
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Department of Physical Chemistry and Physicochemistry of Polymers, 7 Gagarina Street, 87-100 Toruń, Poland.
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5
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Silvestre WP, Duarte J, Tessaro IC, Baldasso C. Non-Supported and PET-Supported Chitosan Membranes for Pervaporation: Production, Characterization, and Performance. MEMBRANES 2022; 12:930. [PMID: 36295689 PMCID: PMC9607258 DOI: 10.3390/membranes12100930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
The objective of this study was to develop non-supported and PET-supported chitosan membranes that were cross-linked with glutaraldehyde, then evaluate their physical-chemical, morphological, and mechanical properties, and evaluate their performance in the separation of ethanol/water and limonene/linalool synthetic mixtures by hydrophilic and target-organophilic pervaporation, respectively. The presence of a PET layer did not affect most of the physical-chemical parameters of the membranes, but the mechanical properties were enhanced, especially the Young modulus (76 MPa to 398 MPa), tensile strength (16 MPa to 27 MPa), and elongation at break (7% to 26%), rendering the supported membrane more resistant. Regarding the pervaporation tests, no permeate was obtained in target-organophilic pervaporation tests, regardless of membrane type. The support layer influenced the hydrophilic pervaporation parameters of the supported membrane, especially in reducing transmembrane flux (0.397 kg∙m-2∙h-1 to 0.121 kg∙m-2∙h-1) and increasing membrane selectivity (611 to 1974). However, the pervaporation separation index has not differed between membranes (228 for the non-supported and 218 for the PET-supported membrane), indicating that, overall, both membranes had a similar performance. Thus, the applicability of each membrane is linked to specific applications that require a more resistant membrane, greater transmembrane fluxes, and higher selectivity.
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Affiliation(s)
- Wendel Paulo Silvestre
- Postgraduate Program in Chemical Engineering, Federal University of Rio Grande do Sul, Porto Alegre 90010-150, Brazil
- Postgraduate Program in Process Engineering and Technologies, University of Caxias do Sul, Caxias do Sul 95070-560, Brazil
| | - Jocelei Duarte
- Postgraduate Program in Process Engineering and Technologies, University of Caxias do Sul, Caxias do Sul 95070-560, Brazil
| | - Isabel Cristina Tessaro
- Postgraduate Program in Chemical Engineering, Federal University of Rio Grande do Sul, Porto Alegre 90010-150, Brazil
| | - Camila Baldasso
- Postgraduate Program in Process Engineering and Technologies, University of Caxias do Sul, Caxias do Sul 95070-560, Brazil
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6
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Synthesis of Novel Zr-MOF/Cloisite-30B Nanocomposite for Anionic and Cationic Dye Adsorption: Optimization by Design-Expert, Kinetic, Thermodynamic, and Adsorption Study. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02471-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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7
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Safarzadeh H, Peighambardoust SJ, Mousavi SH, Mohammadi R, Peighambardoust SH. Adsorption of methyl violet dye from wastewater using poly(methacrylic acid-co-acrylamide)/bentonite nanocomposite hydrogels. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02956-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Kulkarni AS, Sajjan AM, Khan TMY, Badruddin IA, Kamangar S, Banapurmath NR, Ayachit NH, Ashwini M, Sharanappa A. Development and Characterization of Biocompatible Membranes from Natural Chitosan and Gelatin for Pervaporative Separation of Water-Isopropanol Mixture. Polymers (Basel) 2021; 13:2868. [PMID: 34502908 PMCID: PMC8434005 DOI: 10.3390/polym13172868] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/16/2021] [Accepted: 08/22/2021] [Indexed: 01/28/2023] Open
Abstract
Natural polymers have attracted a lot of interest in researchers of late as they are environmentally friendly, biocompatible, and possess excellent characters. Membranes forming natural polymers have provided a whole new dimension to the separation technology. In this work, chitosan-gelatin blend membranes were fabricated using chitosan as the base and varying the amount of gelatin. Transport, mechanical, and surface characteristics of the fabricated membranes were examined in detail by means of the characterizing techniques such as Fourier transform infrared spectroscopy, differential scanning colorimetry, wide angle X-ray diffraction, scanning electron microscope, and thermogravimetric analysis. In order to analyze the water affinity of the developed blend chitosan-gelatin membranes, the percentage degree of swelling was examined. Out of the fabricated membranes, the membrane loaded with 15 mass% of gelatin exhibited the better pervaporation performance with a pervaporation separation index value of 266 at 30 °C for the solution containing 10% in terms of the mass of water, which is the highest among the contemporary membranes. All the fabricated membranes were stable during the pervaporation experiments, and permeation flux of water for the fabricated membranes was dominant in the overall total permeation flux, signifying that the developed membranes could be chosen for efficient separation of water-isopropanol mixture on a larger scale.
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Affiliation(s)
- Akshay S. Kulkarni
- Department of Chemistry, KLE Technological University, Hubballi 580031, India;
| | - Ashok M. Sajjan
- Department of Chemistry, KLE Technological University, Hubballi 580031, India;
- Center for Material Science, KLE Technological University, Hubballi 580031, India; (N.R.B.); (N.H.A.)
| | - T. M. Yunus Khan
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia; (T.M.Y.K.); (I.A.B.)
- Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia;
| | - Irfan Anjum Badruddin
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia; (T.M.Y.K.); (I.A.B.)
- Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia;
| | - Sarfaraz Kamangar
- Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia;
| | - Nagaraj R. Banapurmath
- Center for Material Science, KLE Technological University, Hubballi 580031, India; (N.R.B.); (N.H.A.)
| | - Narasimha H. Ayachit
- Center for Material Science, KLE Technological University, Hubballi 580031, India; (N.R.B.); (N.H.A.)
| | - M. Ashwini
- Department of Food and Industrial Microbiology, University of Agricultural Sciences, Dharwad 580005, India;
| | - A. Sharanappa
- Department of Biotechnology, KLE Technological University, Hubballi 580031, India;
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9
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Preparation and Characterization of Functional Films Based on Chitosan and Corn Starch Incorporated Tea Polyphenols. COATINGS 2021. [DOI: 10.3390/coatings11070817] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The functional films based on chitosan and corn starch incorporated tea polyphenols were developed through mixing the chitosan and starch solution and the powder of tea polyphenols by the casting method. The objective of this research was to investigate the effect of different concentrations of tea polyphenols on the functional properties of the films. Attenuated total reflectance Fourier transform infrared spectrometry and X-ray diffraction were used to investigate the potential interactions among chitosan, corn starch and tea polyphenols in the blend films. Physical properties of the blend films, including density, moisture content, opacity, color, water solubility and water swelling, as well as morphological characteristics, were measured. The results demonstrated that the incorporation of tea polyphenols caused the blend films to lead to a darker appearance. The water solubility of the blend film increased with the increase of tea polyphenol concentrations, while moisture content and swelling degree decreased. The hydrogen bonding between chitosan, starch and tea polyphenols restricted the movement of molecular chains and was helpful to the stability of the blend films. The results suggested that these biodegradable blend films could potentially be used as packaging films for the food and drug industries to extend the shelf life to maintain their quality and safety.
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10
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Ali H, Dilshad MR, Haider B, Islam A, Akram MS, Jalal A, Hussain SN. Preparation and characterization of novel Polyamide-6/Chitosan blend dense membranes for desalination of brackish water. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03691-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Jakubowska E, Gierszewska M, Nowaczyk J, Olewnik-Kruszkowska E. The role of a deep eutectic solvent in changes of physicochemical and antioxidative properties of chitosan-based films. Carbohydr Polym 2020; 255:117527. [PMID: 33436259 DOI: 10.1016/j.carbpol.2020.117527] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/31/2020] [Accepted: 12/13/2020] [Indexed: 02/06/2023]
Abstract
In this work deep eutectic solvent (DES), based on the mixture of choline chloride and lactic acid, were suggested as chitosan films plasticizers. The molecular structure and properties of films obtained using chitosan, with different degree of deacetylation and 0-80 wt.% DES content (ωDES), were studied by means of FTIR spectroscopy, SEM and AFM microscopy (films' surface properties) together with optical characteristics, water vapor transmission rate (WVTR), water vapor permeability (WVP), tensile strength (TS) and elongation at break (Eb). Scanning electron micrographs revealed that all chitosan-DES films were smooth and uniform. DES significantly improves the film flexibility (Eb increases of ca. 160 % after incorporation of 80 wt.% DES), slightly decreases tensile strength and also improves antioxidative properties while simultaneously, increasing water vapor permeability (WVP). Films prepared in this study exhibit characteristics that qualify them for potential use as an active packaging material.
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Affiliation(s)
- Ewelina Jakubowska
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Chair of Physical Chemistry and Physicochemistry of Polymers, 7 Gagarina Street, 87-100 Toruń, Poland.
| | - Magdalena Gierszewska
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Chair of Physical Chemistry and Physicochemistry of Polymers, 7 Gagarina Street, 87-100 Toruń, Poland.
| | - Jacek Nowaczyk
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Chair of Physical Chemistry and Physicochemistry of Polymers, 7 Gagarina Street, 87-100 Toruń, Poland.
| | - Ewa Olewnik-Kruszkowska
- Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Chair of Physical Chemistry and Physicochemistry of Polymers, 7 Gagarina Street, 87-100 Toruń, Poland.
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12
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Jakubowska E, Gierszewska M, Nowaczyk J, Olewnik-Kruszkowska E. Physicochemical and storage properties of chitosan-based films plasticized with deep eutectic solvent. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.106007] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Silvestre WP, Baldasso C, Tessaro IC. Potential of chitosan-based membranes for the separation of essential oil components by target-organophilic pervaporation. Carbohydr Polym 2020; 247:116676. [DOI: 10.1016/j.carbpol.2020.116676] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 12/12/2022]
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14
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Knozowska K, Kujawa J, Lagzdins R, Figoli A, Kujawski W. A New Type of Composite Membrane PVA-NaY/PA-6 for Separation of Industrially Valuable Mixture Ethanol/Ethyl Tert-Butyl Ether by Pervaporation. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3676. [PMID: 32825354 PMCID: PMC7504003 DOI: 10.3390/ma13173676] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/15/2020] [Accepted: 08/17/2020] [Indexed: 11/29/2022]
Abstract
Pervaporation is a membrane technique used to separate azeotropic and close boiling solvents. Heterogenous PVA composite membranes with NaY zeolite supported on polyamide-6 were fabricated and utilized in organic-organic pervaporation. The efficiency of prepared membranes was evaluated in the separation of ethanol/ethyl tert-butyl ether (EtOH/ETBE) using separation factor (β) and the thickness normalized pervaporation separation index (PSIN). Implementation of the fringe projection phase-shifting method allowed to the determined contact angle corrected by roughness. The influence of the presence of water traces in the feed on the overall separation efficiency was also discussed using the enrichment factor for water (EFwater). The incorporation of NaY into PVA matrix increases surface roughness and hydrophilicity of the composite membrane. It was found that membranes selectively transport ethanol from the binary EtOH/ETBE mixture. The values of β (2.3) and PSIN (288 μm g m-2 h-1) for PVA-NaY/PA6 membrane were improved by 143% and 160% in comparison to the values for the pristine PVA/PA6 membrane. It was found that membranes showed EFwater > 1, thus revealing the preferential transport of water molecules across membranes. These results are also significant for the design of membranes for the removal of water excess from the mixtures of organic solvents.
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Affiliation(s)
- Katarzyna Knozowska
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7 Gagarina Street, 87-100 Toruń, Poland; (K.K.); (J.K.); (R.L.)
| | - Joanna Kujawa
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7 Gagarina Street, 87-100 Toruń, Poland; (K.K.); (J.K.); (R.L.)
| | - Renars Lagzdins
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7 Gagarina Street, 87-100 Toruń, Poland; (K.K.); (J.K.); (R.L.)
- Faculty of Nature Sciences and Mathematics, Daugavpils University, 1 Parādes Street, LV-5401 Daugavpils, Latvia
| | - Alberto Figoli
- Institute on Membrane Technology, CNR-ITM, Via P. Bucci 17c, 87030 Rende, Italy;
| | - Wojciech Kujawski
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7 Gagarina Street, 87-100 Toruń, Poland; (K.K.); (J.K.); (R.L.)
- National Research Nuclear University MEPhI, 31 Kashirskoe Hwy, Moscow 115409, Russia
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15
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Chauke NM, Moutloali RM, Ramontja J. Development of ZSM-22/Polyethersulfone Membrane for Effective Salt Rejection. Polymers (Basel) 2020; 12:polym12071446. [PMID: 32605204 PMCID: PMC7408022 DOI: 10.3390/polym12071446] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 05/29/2020] [Accepted: 06/01/2020] [Indexed: 11/16/2022] Open
Abstract
ZSM-22/polyethersulfone membranes were prepared for salt rejection using modelled brackish water. The membranes were fabricated via direct ZSM-22 incorporation into a polymer matrix, thereby inducing the water permeability, hydrophilicity and fouling resistance of the pristine polyethersulfone (PES) membrane. A ZSM-22 zeolite material with a 60 Si/Al ratio, high crystallinity and needle-like morphologies was produced and effectively used as a nanoadditive in the development of ZSM-22/PES membranes with nominal loadings of 0–0.75 wt.%. The characterisation and membrane performance evaluation of the resulting materials with XRD, BET, FTIR, TEM, SEM and contact angle as well as dead-end cell, respectively, showed improved water permeability in comparison with the pristine PES membrane. These ZSM-22/PES membranes were found to be more effective and superior in the processing of modelled brackish water. The salt rejection of the prepared membranes for NaCl and MgCl2 was effective, while they exhibited quite improved water flux and flux recovery ratios in the membrane permeability and anti-fouling test. This indicates that different amounts of ZSM-22 nanoadditives produce widely divergent influences on the performance of the pristine PES membrane. As such, over 55% of salt rejection is observed, which means that the obtained membranes are effective in salt removal from water.
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Affiliation(s)
- Nyiko M. Chauke
- Department of Chemical Sciences, Faculty of Science, University of Johannesburg, Doornfontein 2028, Johannesburg, South Africa;
- DSI/MINTEK Nanotechnology Innovation Centre-Water Research Node, University of Johannesburg, Doornfontein 2028, Johannesburg, South Africa
| | - Richard M. Moutloali
- Department of Chemical Sciences, Faculty of Science, University of Johannesburg, Doornfontein 2028, Johannesburg, South Africa;
- DSI/MINTEK Nanotechnology Innovation Centre-Water Research Node, University of Johannesburg, Doornfontein 2028, Johannesburg, South Africa
- Correspondence: (R.M.M.); (J.R.); Tel.: +27-(0)-11-559-6885 (R.M.M.); +27-(0)-11-559-6754 (J.R.)
| | - James Ramontja
- Department of Chemical Sciences, Faculty of Science, University of Johannesburg, Doornfontein 2028, Johannesburg, South Africa;
- Correspondence: (R.M.M.); (J.R.); Tel.: +27-(0)-11-559-6885 (R.M.M.); +27-(0)-11-559-6754 (J.R.)
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16
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Knozowska K, Li G, Kujawski W, Kujawa J. Novel heterogeneous membranes for enhanced separation in organic-organic pervaporation. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.117814] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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17
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Castro-Muñoz R, González-Valdez J, Ahmad MZ. High-performance pervaporation chitosan-based membranes: new insights and perspectives. REV CHEM ENG 2020. [DOI: 10.1515/revce-2019-0051] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Abstract
Today, the need of replacing synthetic polymers in the membrane preparation for diverse pervaporation (PV) applications has been recognized collectively and scientifically. Chitosan (CS), a bio-polymer, has been studied and proposed to achieve this goal especially in specific azeotropic water-organic, organic-water, and organic-organic separations, as well as in assisting specific processes (e.g. seawater desalination and chemical reactions). Different concepts of CS-based membranes have been developed, which include material blending and composite and mixed matrix membranes which have been tested for different separations. Hereby, the goal of this review is to provide a critical overview of the ongoing CS-based membrane developments, paying a special attention to the most relevant findings and results in the field. Furthermore, future trends of CS-based membranes in PV technology are presented, as well as concluding remarks and suggested strategies for the new scientist in the field.
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Affiliation(s)
- Roberto Castro-Muñoz
- Tecnologico de Monterrey, Campus Toluca, Avenida Eduardo Monroy Cárdenas , 2000 San Antonio Buenavista , 50110 Toluca de Lerdo , Mexico
| | - José González-Valdez
- Tecnologico de Monterrey, School of Engineering and Science , Av. Eugenio Garza Sada 2501 , Monterrey, N.L. 64849 , Mexico
| | - M. Zamidi Ahmad
- Organic Materials Innovation Center (OMIC) , University of Manchester , Oxford Road , Manchester M13 9PL , UK
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18
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Niemczyk A, Goszczyńska A, Gołda-Cępa M, Kotarba A, Sobolewski P, El Fray M. Biofunctional catheter coatings based on chitosan-fatty acids derivatives. Carbohydr Polym 2019; 225:115263. [PMID: 31521311 DOI: 10.1016/j.carbpol.2019.115263] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 01/04/2023]
Abstract
Multifunctional and biofunctional coatings for medical devices are an attractive strategy towards tailoring the interactions of the device with the body, thereby influencing the host response, and the susceptibility to microbial colonization. Here we describe the development of a coating process to yield amphiphilic, lubricious coatings, resistant to bacterial colonization, based on chitosan. Chitosan-fatty acid derivatives were obtained by simultaneous N,O-acylation of chitosan with either linoleic, α-linolenic, or dilinoleic acid. Chemical characterization of new materials was carried out using 1H NMR, FTIR, and XPS. Surface properties of coated polyester samples were studied using SEM and contact angle measurements, which indicated that the incorporation of hydrophobic constituents into chitosan macromolecules led to a decrease of both surface roughness and water contact angle. Importantly, tribological testing demonstrated that these new coatings decrease the coefficient of friction due to the self-organization of fatty acid (from 0.53 for the neat chitosan to 0.35 for chitosan-fatty acid derivative). Meanwhile, preliminary bacterial colonization tests indicated significant-over 80%-reduction in E. coli colonization following coating with chitosan-linoleic and chitosan-α-linolenic derivatives. Finally, cytotoxicity and hemocompatibility studies confirmed that all amphiphilic chitosan-fatty acid derivatives were non-toxic and non-hemolytic. Collectively, our results demonstrate the potential of the developed coating strategy, particularly the chitosan-linoleic and chitosan-α-linolenic acid derivatives, for applications as biofunctional catheter coatings.
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Affiliation(s)
- Agata Niemczyk
- Division of Functional Materials and Biomaterials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Al. Piastow 45, 71-311, Szczecin, Poland.
| | - Agata Goszczyńska
- Division of Functional Materials and Biomaterials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Al. Piastow 45, 71-311, Szczecin, Poland
| | - Monika Gołda-Cępa
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Andrzej Kotarba
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Peter Sobolewski
- Division of Functional Materials and Biomaterials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Al. Piastow 45, 71-311, Szczecin, Poland
| | - Miroslawa El Fray
- Division of Functional Materials and Biomaterials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Al. Piastow 45, 71-311, Szczecin, Poland.
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19
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Gkika D, Liakos EV, Vordos N, Kontogoulidou C, Magafas L, Bikiaris DN, Bandekas DV, Mitropoulos AC, Kyzas GZ. Cost Estimation of Polymeric Adsorbents. Polymers (Basel) 2019; 11:polym11050925. [PMID: 31137821 PMCID: PMC6572197 DOI: 10.3390/polym11050925] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 05/23/2019] [Indexed: 02/06/2023] Open
Abstract
One of the most promising techniques of recent research is adsorption. This technique attracts great attention in environmental technology, especially in the decontamination of water and wastewaters. A “hidden” point of the above is the cost of adsorbents. As can be easily observed in the literature, there is not any mention about the synthesis cost of adsorbents. What are the basic criteria with which an industry can select an adsorbent? What is the synthesis (recipe) cost? What is the energy demand to synthesize an efficient material? All of these are questions which have not been answered, until now. The reason for this is that the estimation of adsorbents’ cost is relatively difficult, because too many cost factors are involved (labor cost, raw materials cost, energy cost, tax cost, etc.). In this work, the first estimation cost of adsorbents is presented, taking into consideration all of the major factors which influence the final value. To be more comparable, the adsorbents used are from a list of polymeric materials which are already synthesized and tested in our laboratory. All of them are polymeric materials with chitosan as a substrate, which is efficiently used for the removal of heavy metal ions.
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Affiliation(s)
- Despina Gkika
- Complex Systems Lab, Department of Physics, International Hellenic University, GR-654 04 Kavala, Greece.
- Department of Physics, International Hellenic University, GR-654 04 Kavala, Greece.
- Hephaestus Advanced Laboratory, Department of Chemistry, International Hellenic University, GR-654 04 Kavala, Greece.
| | - Efstathios V Liakos
- Hephaestus Advanced Laboratory, Department of Chemistry, International Hellenic University, GR-654 04 Kavala, Greece.
| | - Nick Vordos
- Department of Physics, International Hellenic University, GR-654 04 Kavala, Greece.
- Hephaestus Advanced Laboratory, Department of Chemistry, International Hellenic University, GR-654 04 Kavala, Greece.
| | | | - Lykourgos Magafas
- Complex Systems Lab, Department of Physics, International Hellenic University, GR-654 04 Kavala, Greece.
- Department of Physics, International Hellenic University, GR-654 04 Kavala, Greece.
| | - Dimitrios N Bikiaris
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.
| | - Dimitrios V Bandekas
- Department of Physics, International Hellenic University, GR-654 04 Kavala, Greece.
| | - Athanasios C Mitropoulos
- Hephaestus Advanced Laboratory, Department of Chemistry, International Hellenic University, GR-654 04 Kavala, Greece.
| | - George Z Kyzas
- Hephaestus Advanced Laboratory, Department of Chemistry, International Hellenic University, GR-654 04 Kavala, Greece.
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