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Audourenc J, Baldo H, Coronas M, Flaud V, Ramonda M, Labour MN, Soussan L, Thami T, Li S. Development of Functionalized Polylactide Thin Films Using Poly(methylhydrogenosiloxane) Sol-Gel Process with Improved Antifouling Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39423360 DOI: 10.1021/acs.langmuir.4c02975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2024]
Abstract
Biobased polylactide (PLA) films were modified with low reticulate polysiloxane gel acting as a scalable platform for the hydrophilization of polymeric film surface. The PLA thin film was first coated with poly(methylhydrogenosiloxane) (PMHS) by the sol-gel transition via the condensation of diethoxymethylsilane (DH) and triethoxysilane (TH) using trifluoromethanesulfonic acid as a catalyst. Then, hydrosilylation of Si-H bonds in the presence of Karstedt's catalyst allowed the covalent grafting of hydrophilic alkene-containing molecules, i.e., triethylene glycol monomethyl allyl (TEGMEA) and a new zwitterionic allylcarboxybetaine (ACB) synthesized for the first time by the quaternization of dimethyl allyl amine (DMAA) with β-propiolactone. PMHS coating on the PLA film was evidenced by Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). The observation by atomic force microscopy (AFM) revealed a homogeneous coating with low roughness (RMS = 0.29 nm). The hydrophilicity of functionalized PLA films was determined by water contact angle (WCA) measurements using the captive bubble method. A large increase in wettability properties was observed for both grafting with TEGMEA (WCA = 38°) and ACB (WCA = 42°) in comparison with the native PLA film (WCA = 80°). Moreover, the biocompatibility and antifouling efficiency of functionalized PLA films were evaluated by protein adsorption, bacterial adhesion, and cytotoxicity tests. The results indicate that the grafting of the two types of hydrophilic compounds does not affect the biocompatibility of PLA while significantly reducing protein adsorption and bacterial adhesion, thus showing the great potential of this surface functionalization strategy for applications in the medical field.
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Affiliation(s)
- Jules Audourenc
- Institut Européen des Membranes, IEM, CNRS, ENSCM, Université de Montpellier, 34095 Montpellier, France
| | - Héloïse Baldo
- Institut Européen des Membranes, IEM, CNRS, ENSCM, Université de Montpellier, 34095 Montpellier, France
| | - Maximilien Coronas
- Institut Européen des Membranes, IEM, CNRS, ENSCM, Université de Montpellier, 34095 Montpellier, France
| | - Valérie Flaud
- Institut Charles Gerhardt de Montpellier, ICGM, CNRS, ENSCM, Université de Montpellier, 34293 Montpellier, France
| | - Michel Ramonda
- Centrale de Technologie en Micro et nanoélectronique, CTM, Université de Montpellier, 34090 Montpellier, France
| | - Marie-Noëlle Labour
- Institut Charles Gerhardt de Montpellier, ICGM, CNRS, ENSCM, Université de Montpellier, 34293 Montpellier, France
| | - Laurence Soussan
- Institut Européen des Membranes, IEM, CNRS, ENSCM, Université de Montpellier, 34095 Montpellier, France
| | - Thierry Thami
- Institut Européen des Membranes, IEM, CNRS, ENSCM, Université de Montpellier, 34095 Montpellier, France
| | - Suming Li
- Institut Européen des Membranes, IEM, CNRS, ENSCM, Université de Montpellier, 34095 Montpellier, France
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2
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Abumounshar N, Pandey RP, Hasan SW. Enhanced hydrophilicity and antibacterial efficacy of in-situ silver nanoparticles decorated Ti 3C 2T x/Polylactic acid composite membrane for real hospital wastewater purification. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 954:176697. [PMID: 39366577 DOI: 10.1016/j.scitotenv.2024.176697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 09/13/2024] [Accepted: 10/01/2024] [Indexed: 10/06/2024]
Abstract
This study investigates the integration of Ti3C2Tx (MX) and Ag/Ti3C2Tx (Ag/MX) nanocomposites into polylactic acid membranes to enhance hydrophilicity and impart antibacterial properties, targeting hospital wastewater treatment. MX and silver nanoparticles are known for their hydrophilicity and antimicrobial capabilities, were synthesized and incorporated into PLA; a green polymer. The impact of nanocomposite concentration on the membrane's chemical structure, morphology, and overall performance were characterized using various PLA membrane properties and to evaluate the nanocomposite's performance in enhancing pure water flux and antibacterial efficacy. The pure water permeability increased from 1512 L m-2 h-1 bar-1 to 3108 L m-2 h-1 bar-1 in PLA/AgMX4 compared to PLA. Furthermore, a total bacteria count (TBC) rejection of up to 97 % was obtained using the PLA/AgMX4 membrane. The results demonstrated significant improvements in PLA/AgMX membranes compared to pristine PLA, showing a large potential for hospital wastewater treatment.
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Affiliation(s)
- Najah Abumounshar
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Department of Chemical and Petroleum Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - Ravi P Pandey
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Department of Chemical and Petroleum Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - Shadi W Hasan
- Center for Membranes and Advanced Water Technology (CMAT), Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates; Department of Chemical and Petroleum Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates.
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3
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Gomez d’Ayala G, Marino T, de Almeida YMB, Costa ARDM, Bezerra da Silva L, Argurio P, Laurienzo P. Enhancing Sustainability in PLA Membrane Preparation through the Use of Biobased Solvents. Polymers (Basel) 2024; 16:2024. [PMID: 39065341 PMCID: PMC11280543 DOI: 10.3390/polym16142024] [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: 06/11/2024] [Revised: 07/03/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
For the first time, ultrafiltration (UF) green membranes were prepared through a sustainable route by using PLA as a biopolymer and dihydrolevoclucosenone, whose trade name is Cyrene™ (Cyr), dimethyl isosorbide (DMI), and ethyl lactate (EL) as biobased solvents. The influence of physical-chemical properties of the solvent on the final membrane morphology and performance was evaluated. The variation of polymer concentration in the casting solution, as well as the presence of Pluronic® (Plu) as a pore former agent, were assessed as well. The obtained results highlighted that the final morphology of a membrane was strictly connected with the interplaying of thermodynamic factors as well as kinetic ones, primarily dope solution viscosity. The pore size of the resulting PLA membranes ranged from 0.02 to 0.09 μm. Membrane thickness and porosity varied in the range of 0.090-0.133 mm of 75-87%, respectively, and DMI led to the most porous membranes. The addition of Plu to the casting solution showed a beneficial effect on the membrane contact angle, allowing the formation of hydrophilic membranes (contact angle < 90°), and promoted the increase of pore size as well as the reduction of membrane crystallinity. PLA membranes were tested for pure water permeability (10-390 L/m2 h bar).
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Affiliation(s)
- Giovanna Gomez d’Ayala
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), Via Campi Flegrei, 34, 80078 Pozzuoli, NA, Italy; (G.G.d.); (P.L.)
| | - Tiziana Marino
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), Via Campi Flegrei, 34, 80078 Pozzuoli, NA, Italy; (G.G.d.); (P.L.)
| | | | | | - Larissa Bezerra da Silva
- Postgraduate Program in Materials Science and Engineering, Federal University of Rio Grande do Norte, Natal 59078-970, RN, Brazil;
| | - Pietro Argurio
- Department of Environmental Engineering, DIAm, University of Calabria, Via Pietro Bucci CUBO 44/A, 87036 Rende, CS, Italy;
| | - Paola Laurienzo
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), Via Campi Flegrei, 34, 80078 Pozzuoli, NA, Italy; (G.G.d.); (P.L.)
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4
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Hou B, Wang Y, Li B, Gong T, Wu J, Li J. Synthesis of novel L-lactic acid-based plasticizers and their effects on the flexibility, crystallinity, and optical transparency of poly(lactic acid). Int J Biol Macromol 2024; 273:132826. [PMID: 38825277 DOI: 10.1016/j.ijbiomac.2024.132826] [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: 11/28/2023] [Revised: 05/09/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
Using bio-based plasticizers derived from biomass resources to replace traditional phthalates can avoid the biotoxicity and non-biodegradability caused by the migration of plasticizers during the application of plastics. In this study, L-lactic acid and levulinic acid were employed as the major biomass monomer to successfully fabricate L-lactic acid-based plasticizers (LBL-n, n = 1.0, 1.5, 2.0, 2.5) containing a diverse number of lactate groups. The plasticizing mechanism was explained, manifesting that L-lactic acid-based plasticizers containing a substantial number of lactate groups could effectively improve the flexibility of poly (lactic acid) (PLA), and the elongation at break was 590 %-750 %. Compared to LBL-1.5 plasticized-PLA films, the tensile strength and modulus of ketonized-LBL-1.5 (KLBL-1.5) plasticized-PLA films increased to 59 % and 163 %, indicating the ketal functionality of plasticizers enhanced the strength of PLA. Meanwhile, the increment of lactate groups and the introduction of the ketal group in the plasticizer increased the crystallization, migration, and volatilization stability of plasticized-PLA films and also kept their outstanding optical transparency. Besides, the biodegradability of KLBL-1.5 was investigated by active soil and Tenebrio molitor experiments, and its degradation products were characterized. The findings indicated that KLBL-1.5 was fully decomposed. Taken together, this paper offers new promise for developing high-efficiency and biodegradable plasticizers.
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Affiliation(s)
- Boyou Hou
- School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Yanning Wang
- School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Bingjian Li
- Unipower Hydrogen Membrane Materials (Jiangsu) Research Institute Co., Ltd., China
| | - Tianyang Gong
- School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Jianming Wu
- Changshu Sanheng Building Material Co. Ltd, Changshu 215500, China
| | - Jinchun Li
- School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China; Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, National-Local Joint Engineering Research Center of Biomass Refining and High-Quality Utilization, Changzhou University, Changzhou 213164, China.
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Elgharbawy AS, El Demerdash AGM, Sadik WA, Kasaby MA, Lotfy AH, Osman AI. Synthetic Degradable Polyvinyl Alcohol Polymer and Its Blends with Starch and Cellulose-A Comprehensive Overview. Polymers (Basel) 2024; 16:1356. [PMID: 38794547 PMCID: PMC11124784 DOI: 10.3390/polym16101356] [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: 04/19/2024] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Approximately 50% of global plastic wastes are produced from plastic packaging, a substantial amount of which is disposed of within a few minutes of its use. Although many plastic types are designed for single use, they are not always disposable. It is now widely acknowledged that the production and disposal of plastics have led to a plethora of negative consequences, including the contamination of both groundwater and soil resources and the deterioration of human health. The undeniable impact of excessive plastic manufacturing and waste generation on the global plastic pollution crisis has been well documented. Therefore, degradable polymers are a crucial solution to the problem of the non-degradation of plastic wastes. The disadvantage of degradable polymers is their high cost, so blending them with natural polymers will reduce the cost of final products and maximize their degradation rate, making degradable polymers competitive with industrial polymers that are currently in use daily. In this work, we will delineate various degradable polymers, including polycaprolactone, starch, and cellulose. Furthermore, we will elucidate several aspects of polyvinyl alcohol (PVA) and its blends with natural polymers to show the effects of adding natural polymers on PVA properties. This paper will study cost-effective and ecologically acceptable polymers by combining inexpensive natural polymers with readily accessible biodegradable polymers such as polyvinyl alcohol (PVA).
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Affiliation(s)
- Abdallah S. Elgharbawy
- Materials Science Department, Institute of Graduate Studies and Research (IGSR), Alexandria University, 163 Horrya Avenue, Shatby, P.O. Box 832, Alexandria 21526, Egypt; (A.S.E.)
- The Egyptian Ethylene and Derivatives Company (Ethydco), Alexandria 21544, Egypt
| | - Abdel-Ghaffar M. El Demerdash
- Materials Science Department, Institute of Graduate Studies and Research (IGSR), Alexandria University, 163 Horrya Avenue, Shatby, P.O. Box 832, Alexandria 21526, Egypt; (A.S.E.)
| | - Wagih A. Sadik
- Materials Science Department, Institute of Graduate Studies and Research (IGSR), Alexandria University, 163 Horrya Avenue, Shatby, P.O. Box 832, Alexandria 21526, Egypt; (A.S.E.)
| | - Mosaad A. Kasaby
- Materials Science Department, Institute of Graduate Studies and Research (IGSR), Alexandria University, 163 Horrya Avenue, Shatby, P.O. Box 832, Alexandria 21526, Egypt; (A.S.E.)
| | - Ahmed H. Lotfy
- Materials Science Department, Institute of Graduate Studies and Research (IGSR), Alexandria University, 163 Horrya Avenue, Shatby, P.O. Box 832, Alexandria 21526, Egypt; (A.S.E.)
| | - Ahmed I. Osman
- School of Chemistry and Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, UK
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Jayachitra R, Lincy V, Prasannan A, Nimita Jebaranjitham J, Sangaraju S, Hong PD. Tailored fabrication of biodegradable polymer/ Fe 3O 4 doped WO 3 nano star-based porous membrane with enhanced photo fentonic activity for environmental remediation. ENVIRONMENTAL RESEARCH 2024; 248:118262. [PMID: 38280523 DOI: 10.1016/j.envres.2024.118262] [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: 11/03/2023] [Revised: 01/02/2024] [Accepted: 01/09/2024] [Indexed: 01/29/2024]
Abstract
The accelerated development of special-wetting polymeric materials with hierarchical pores for membrane applications is crucial to effectively separating water-soluble and insoluble pollutants, such as oily wastewater, emulsion, organic pollutants, and heavy metals. This pressing environmental and socioeconomic issue requires the implementation of effective remediation technologies. In this study, we successfully fabricated an environmentally friendly membrane with a flexible property by combining biopolymers and magnetic nanohybrids of iron oxide (Fe3O4)-doped tungsten oxide (WO3) through a thermal-induced phase separation process (TIPS). The resulting membrane exhibited a well-defined 3D-interconnected porous network structure when blending poly (ε-caprolactone)/poly (D,L-lactide) (PCL)/(PDLLA) in an 8:2 volume ratio. The Fe3O4@WO3 nanohybrids were synthesized using a hydrothermal process, resulting in a star-shaped morphology from the sea urchin-like WO3 clusters, which showed great potential to efficiently separate water/oil contamination and facilitate visible-light-driven photocatalytic degradation of organic dyes (MB, Rh B, BY, and CR) and photoreduction of hexavalent chromium (Cr (VI)). The obtained PCL/PDLLA/Fe3O4@WO3 nanocomposite membrane demonstrated hydrophobic properties, showing a water contact angle of 95 ± 2° and an excellent oil adsorption capacity of ∼4-4.5 g/g without fouling. The interconnected porous structure of the composite membrane enabled the efficient separation of emulsions (≥99.4 %) and achieved a high permeation flux of up to 1524 L m-2 h-1 under gravity separation. Overall, we obtained a novel high-performance composite material with specialized wetting properties, offering significant potential for effectively removing insoluble and soluble organic contaminants from wastewater.
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Affiliation(s)
- Ravichandran Jayachitra
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan
| | - Varghese Lincy
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan; Universidad Politecnica Taiwán Paraguay (UPTP), Paraguay
| | - Adhimoorthy Prasannan
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan.
| | - J Nimita Jebaranjitham
- P.G. Department of Chemistry, Women's Christian College (An Autonomous Institution Affiliated to University of Madras), Chennai, Tamil Nadu, India
| | - Sambasivam Sangaraju
- National Water and Energy Center, United Arab Emirates University, Al Ain, 15551, United Arab Emirates
| | - Po-Da Hong
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan.
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7
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Rafique A, Bulbul YE, Raza ZA, Oksuz AU. Development of aminolyzed polylactic acid-based porous films for pH-responsive sustained drug delivery devices. Int J Biol Macromol 2024; 266:130947. [PMID: 38521313 DOI: 10.1016/j.ijbiomac.2024.130947] [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: 12/29/2023] [Revised: 03/07/2024] [Accepted: 03/14/2024] [Indexed: 03/25/2024]
Abstract
Biomaterial-based drug-carrying systems have scored enormous focus in the biomedical sector. Poly(lactic acid) (PLA) is a versatile material in this context. A porous and hydrophilic PLA surface can do this job better. We aimed to synthesize pH-responsive PLA-based porous films for uptaking and releasing amikacin sulfate in the aqueous media. The native PLA lacks functional/polar sites for the said purpose. So, we tended to aminolyze it for tailored physicochemical and surface properties. The amino (-NH2) group density on the treated films was examined using the ninhydrin assay. Electron microscopic analyses indicated the retention of porous morphology after aminolysis. Surface wettability and FTIR results expressed that the resultant films became hydrophilic after aminolysis. The thermal analysis expressed reasonable thermal stability of the aminolyzed films. The prepared films expressed pH-responsive behaviour for loading and releasing amikacin sulfate drug at pH 5.5 and 7.4, respectively. The drug release data best-fitted the first-order kinetic model based on Akaike information and model selection criteria. The prepared PLA-based aminolyzed films qualified as potential candidates for pH-responsive drug delivery applications. This study could be the first report on pH-responsive amikacin sulfate uptake and release on the swellable aminolyzed PLA-based porous films for effective drug delivery application.
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Affiliation(s)
- Ammara Rafique
- Department of Applied Sciences, National Textile University, Faisalabad 37610, Pakistan; Department of Chemistry, Suleyman Demirel University, Faculty of Engineering and Natural Sciences, 32220 Isparta, Turkey
| | - Y Emre Bulbul
- Department of Chemistry, Suleyman Demirel University, Faculty of Engineering and Natural Sciences, 32220 Isparta, Turkey
| | - Zulfiqar Ali Raza
- Department of Applied Sciences, National Textile University, Faisalabad 37610, Pakistan.
| | - Aysegul Uygun Oksuz
- Department of Chemistry, Suleyman Demirel University, Faculty of Engineering and Natural Sciences, 32220 Isparta, Turkey.
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8
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Cui X, Chen X, Gu W, Zhang X, Sun J, Gu X, Zhang S. Enhancing the flame retardancy of polylactic acid nonwoven fabric through solvent-free transparent coating. Int J Biol Macromol 2024; 267:131358. [PMID: 38580028 DOI: 10.1016/j.ijbiomac.2024.131358] [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: 01/28/2024] [Revised: 03/23/2024] [Accepted: 04/01/2024] [Indexed: 04/07/2024]
Abstract
Polylactic acid (PLA) nonwovens, recognized as eco-friendly substitutes for petroleum-based synthetic fibers, face a significant challenge due to their inherent flammability. This work addresses this concern by synthesizing a hyperbranched polyphosphoramide flame retardant (TPDT) through a one-step polycondensation process without using solvent and catalyst. TPDT is subsequently applied to PLA nonwovens using a dip-pad finishing technique. Notably, with a mere 7 wt% weight gain of TPDT, the PLA nonwovens exhibit a substantial increase in the limited oxygen index (LOI) value, reaching 32.3 %. Furthermore, the damaged area in the vertical burning test is reduced by approximately 69.2 %. In the cone calorimeter test, 17 wt% weight gain of TPDT results in a 51.4 % decrease in peak heat release rate and a 56.0 % reduction in total heat release compared to the control PLA. Additionally, char residue increases from 1.5 wt% to 31.1 wt% after combustion. The strong affinity between TPDT and PLA molecules persists even after repeated abrasion, ensuring sustained flame retardancy. Importantly, the introduction of TPDT also imparts increased softness to the PLA nonwovens. This work addresses this concern by synthesizing a hyperbranched polyphosphoramide flame retardant (TPDT) through a solvent-free, catalyst-free, and one-step polycondensation process.
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Affiliation(s)
- Xinyu Cui
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xin Chen
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Weiwen Gu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaolian Zhang
- State Key Laboratory of Marine Coating, Marine Chemical Research Institute Co.Ltd, Qingdao 266071, China
| | - Jun Sun
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaoyu Gu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Sheng Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
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9
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Ampawan S, Dairoop J, Keawbanjong M, Chinpa W. A floating biosorbent of polylactide and carboxylated cellulose from biomass for effective removal of methylene blue from water. Int J Biol Macromol 2024; 266:131354. [PMID: 38574933 DOI: 10.1016/j.ijbiomac.2024.131354] [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: 12/26/2023] [Revised: 03/17/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
A floating adsorbent bead was prepared from polylactide (PLA) and maleic anhydride (MAH)-modified cellulose in a one-pot process (OP bead). Cellulose was extracted from waste lemongrass leaf (LGL) and modified with MAH in the presence of dimethylacetamide (DMAc). PLA was then added directly into the system to form sorbent beads by a phase separation process that reused unreacted MAH and DMAc as a pore former and a solvent, respectively. The chemical modification converted cellulose macrofibres (55.1 ± 31.5 μm) to microfibers (8.8 ± 1.5 μm) without the need for grinding. The OP beads exhibited more and larger surface pores and greater thermal stability than beads prepared conventionally. The OP beads also removed methylene blue (MB) more effectively, with a maximum adsorption capacity of 86.19 mg⋅g-1. The adsorption of MB on the OP bead fitted the pseudo-second order and the Langmuir isotherm models. The OP bead was reusable over five adsorption cycles, retaining 88 % of MB adsorption. In a mixed solution of MB and methyl orange (MO), the OP bead adsorbed 96 % of the cationic dye MB while repelling the anionic dye MO. The proposed method not only reduced time, energy and chemical consumption, but also enabled the fabrication of a green, effective and easy-to-use biosorbent.
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Affiliation(s)
- Sasimaporn Ampawan
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Jiratchaya Dairoop
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Mallika Keawbanjong
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Watchanida Chinpa
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
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Depuydt S, Van der Bruggen B. Green Synthesis of Cation Exchange Membranes: A Review. MEMBRANES 2024; 14:23. [PMID: 38248713 PMCID: PMC10819081 DOI: 10.3390/membranes14010023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/06/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024]
Abstract
Cation exchange membranes (CEMs) play a significant role in the transition to a more sustainable/green society. They are important components for applications such as water electrolysis, artificial photosynthesis, electrodialysis and fuel cells. Their synthesis, however, is far from being sustainable, affecting safety, health and the environment. This review discusses and evaluates the possibilities of synthesizing CEMs that are more sustainable and green. First, the concepts of green and sustainable chemistry are discussed. Subsequently, this review discusses the fabrication of conventional perfluorinated CEMs and how they violate the green/sustainability principles, eventually leading to environmental and health incidents. Furthermore, the synthesis of green CEMs is presented by dividing the synthesis into three parts: sulfonation, material selection and solvent selection. Innovations in using gaseous SO3 or gas-liquid interfacial plasma technology can make the sulfonation process more sustainable. Regarding the selection of polymers, chitosan, cellulose, polylactic acid, alginate, carrageenan and cellulose are promising alternatives to fossil fuel-based polymers. Finally, water is the most sustainable solvent and many biopolymers are soluble in it. For other polymers, there are a limited number of studies using green solvents. Promising solvents are found back in other membrane, such as dimethyl sulfoxide, Cyrene™, Rhodiasolv® PolarClean, TamiSolve NxG and γ-valerolactone.
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Affiliation(s)
| | - Bart Van der Bruggen
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium;
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11
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Gao C, Chen P, Ma Y, Sun L, Yan Y, Ding Y, Sun L. Multifunctional polylactic acid biocomposite film for active food packaging with UV resistance, antioxidant and antibacterial properties. Int J Biol Macromol 2023; 253:126494. [PMID: 37625746 DOI: 10.1016/j.ijbiomac.2023.126494] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 08/27/2023]
Abstract
Antibacterial packaging used to control the growth of microorganisms in food is of great value for prolonging the shelf life of food. In this study, a bio-based antibacterial agent PDI based on zwitterionic and stereochemical synergistic antibacterial was designed and synthesized, and it was simultaneously introduced into polylactic acid (PLA) matrix with antioxidant o-vanillin (oVL) and plasticizer glycerol (GL). A series of PLA/oVL/PDI composite membranes with antibacterial, antioxidant and anti-ultraviolet properties were prepared by solution casting method. The results showed that the mechanical properties of the composite film were significantly improved compared with pure PLA (tensile strength increased by 37 %, elongation at break increased by 209 %), which was mainly attributed to the microphase separation structure induced by synthetic bio-based antibacterial agent, which improved the mechanical strength of PLA matrix, and the hydrogen bond formed by glycerol, o-vanillin and carbonyl group in PLA molecules plasticized PLA matrix. At the same time, the antibacterial rate of PLA/oVL/PDI composite membrane against Escherichia coli and Staphylococcus aureus can reach >95 %. Packaging experiments showed that PLA/oVL/PDI series composite films could effectively extend the shelf life of fresh bananas and apples for 5 days, and had great application prospects in preservative food packaging.
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Affiliation(s)
- Chuanhui Gao
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Picheng Chen
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Ying Ma
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Luyang Sun
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Yuling Yan
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, PR China
| | - Yu Ding
- Department of Chemistry, Clemson University, Clemson, SC 29634, United States.
| | - Lishui Sun
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
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12
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Zhang Z, Zhong M, Xiang H, Ding Y, Wang Y, Shi Y, Yang G, Tang B, Tam KC, Zhou G. Antibacterial polylactic acid fabricated via Pickering emulsion approach with polyethyleneimine and polydopamine modified cellulose nanocrystals as emulsion stabilizers. Int J Biol Macromol 2023; 253:127263. [PMID: 37802443 DOI: 10.1016/j.ijbiomac.2023.127263] [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: 07/10/2023] [Revised: 09/18/2023] [Accepted: 10/03/2023] [Indexed: 10/10/2023]
Abstract
Antibacterial biodegradable plastics are highly demanded for food package and disposable medical plastic consumables. Incorporating antibacterial nanoagents into polymer matrices is an effective method to endow polymers with antibacterial activity. However, synthesis of sustainable antibacterial nanoagents with high antibacterial activity via facile approach and well dispersion of them in polymer matrices are still challenging. In this study, polyethyleneimine (PEI) was grafted on surface of cellulose nanocrystals (CNCs) via the oxidation self-polymerization of dopamine (DA) and the Michael addition/Schiff base reaction between DA and PEI. The resulted PEI and polydopamine modified CNCs (PPCs) showed substantially enhanced antibacterial activity and reduced cytotoxicity for NIH3T3 than PEI due to increased local concentration and anchoring of PEI. The minimum concentration of PPCs to achieve antibacterial rate of 99.99 % against S. aureus and E. coli were about 50 and 20 μg/mL, respectively. PPCs displayed outstanding emulsifying ability, and PPC coated polylactic acid (PLA) microspheres were obtained by drying PPC stabilized PLA Pickering emulsion, leading to a well dispersion of PPCs in PLA. PPC/PLA film prepared by hot-pressing displayed great antibacterial performance and enhanced mechanical properties. Therefore, this study proposed a facile approach to fabricate biocompatible antibacterial nanoagents and plastics.
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Affiliation(s)
- Zhen Zhang
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China; ScienceK Ltd, Huzhou 313000, China.
| | - Mengqiu Zhong
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Haosheng Xiang
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Yugao Ding
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | | | - Yijing Shi
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China.
| | - Guang Yang
- Department of Biomedical Engineering, Huazhong University of Science and Technology, 430074 Wuhan, China.
| | - Biao Tang
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Kam C Tam
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L3G1, Canada
| | - Guofu Zhou
- SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
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13
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Ampawan S, Phreecha N, Chantarak S, Chinpa W. Selective separation of dyes by green composite membrane based on polylactide with carboxylated cellulose microfiber from empty fruit bunch. Int J Biol Macromol 2023; 225:1607-1619. [PMID: 36435461 DOI: 10.1016/j.ijbiomac.2022.11.218] [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: 09/25/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 11/24/2022]
Abstract
A bio-based membrane was prepared by a non-solvent induced phase separation process. A polylactide (PLA)/poly(butylene adipate-co-terephthalate) (PBAT) polymer blend was mixed with functionalized cellulose microfiber from empty fruit bunch (EFB) modified with maleic anhydride (MEFB). MEFB reduced the water contact angle and increased the porosity of the membrane. In a batch adsorption process, the pseudo-second order and Langmuir isotherm models best described the adsorption of the cationic dye methylene blue (MB) on PLA/PBAT and PLA/PBAT-MEFB membranes. In a dynamic adsorption process, pure water flux was higher through the PLA/PBAT-MEFB membrane (1214 L m-2 h-1) than the PLA/PBAT membrane (371 L m-2 h-1). The PLA/PBAT-MEFB membrane removed 97.2 % of MB while the PLA/PBAT membrane removed only 58.7 %. The hydrophilicity of the membrane and its adsorption efficiency toward MB were improved by the abundant carboxyl groups in MEFB. A filtration test using a mixed dye solution of anionic methyl orange (MO) and MB showed that the PLA/PBAT-MEFB membrane rapidly adsorbed MB while permitting MO to pass through. Moreover, this membrane could be easily regenerated and maintained a satisfactory separation performance over several cycles. Based on the membrane performance and its economical preparation, the proposed biocomposite membrane could be used for selective filtration and wastewater treatment.
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Affiliation(s)
- Sasimaporn Ampawan
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Nathawut Phreecha
- Office of Scientific Instrument and Testing, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Sirinya Chantarak
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Watchanida Chinpa
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
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Aqaei H, Irani-nezhad MH, Khataee A, Vatanpour V. Modified emulsion polyvinyl chloride membranes for enhanced antifouling and dye separation properties by introducing tungsten disulfide (WS2) nanosheets. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.12.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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15
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Zhu P, Sun W, Liu Y. Improvement of Aerosol Filtering Performance of PLLA/PAN Composite Fiber with Gradient Structure. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4087. [PMID: 36432372 PMCID: PMC9697973 DOI: 10.3390/nano12224087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Since commercial non-woven air filtering materials have unstable filtering efficiency and poor moisture permeability for the abundant condensed aerosol particles in the highly humid atmospheric environment, the PLLA/PAN composite fiber material with a hydrophobic and hydrophilic gradient structure is designed and prepared by using electrode sputtering electro spinning technology. By characterizing and testing the filtrating effect of SEM, XRD, FTIR, wettability, mechanical property, N2 adsorption isotherm, and BET surface area, NaCl aerosol of PLLA fiber, PAN fiber, and PLLA/PAN composite fiber membranes, the study found that the electrode sputtering electrospinning is fine, the fiber mesh is dense, and fiber distribution is uniform when the diameter of the PAN fiber is 140-300 nm, and the PLLA fiber is 700-850 nm. In this case, PLLA/PAN composite fiber materials gather the hydrophobicity of PLLA fiber and the hydrophilicity of PAN fiber; its electrostatic effect is stable, its physical capturing performance is excellent, it can realize the step filtration of gas-solid liquid multiphase flow to avoid the rapid increase of air resistance in a high-humidity environment, and the filtrating efficiency η of NaCl aerosol particles with 0.3 μm reaches 99.98%, and the quality factor QF 0.0968 Pa-1. The manufacturing of PLLA/PAN composite fiber material provides a new method for designing and developing high-performance air filtration materials and a new technical means for the large-scale production of high-performance, high-stability, and low-cost polylactic acid nanofiber composites.
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Affiliation(s)
- Ping Zhu
- Correspondence: ; Tel.: +86-03513922540
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16
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Al Harby NF, El-Batouti M, Elewa MM. Prospects of Polymeric Nanocomposite Membranes for Water Purification and Scalability and their Health and Environmental Impacts: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12203637. [PMID: 36296828 PMCID: PMC9610978 DOI: 10.3390/nano12203637] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 05/26/2023]
Abstract
Water shortage is a major worldwide issue. Filtration using genuine polymeric membranes demonstrates excellent pollutant separation capabilities; however, polymeric membranes have restricted uses. Nanocomposite membranes, which are produced by integrating nanofillers into polymeric membrane matrices, may increase filtration. Carbon-based nanoparticles and metal/metal oxide nanoparticles have received the greatest attention. We evaluate the antifouling and permeability performance of nanocomposite membranes and their physical and chemical characteristics and compare nanocomposite membranes to bare membranes. Because of the antibacterial characteristics of nanoparticles and the decreased roughness of the membrane, nanocomposite membranes often have greater antifouling properties. They also have better permeability because of the increased porosity and narrower pore size distribution caused by nanofillers. The concentration of nanofillers affects membrane performance, and the appropriate concentration is determined by both the nanoparticles' characteristics and the membrane's composition. Higher nanofiller concentrations than the recommended value result in deficient performance owing to nanoparticle aggregation. Despite substantial studies into nanocomposite membrane manufacturing, most past efforts have been restricted to the laboratory scale, and the long-term membrane durability after nanofiller leakage has not been thoroughly examined.
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Affiliation(s)
- Nouf F. Al Harby
- Department of Chemistry, College of Science, Qassim University, Qassim 52571, Saudi Arabia
| | - Mervette El-Batouti
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria 21526, Egypt
| | - Mahmoud M. Elewa
- Arab Academy for Science, Technology and Maritime Transport, Alexandria P.O. Box 1029, Egypt
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17
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Darie-Niță RN, Irimia A, Grigoraș VC, Mustață F, Tudorachi N, Râpă M, Ludwiczak J, Iwanczuk A. Evaluation of Natural and Modified Castor Oil Incorporation on the Melt Processing and Physico-Chemical Properties of Polylactic Acid. Polymers (Basel) 2022; 14:polym14173608. [PMID: 36080683 PMCID: PMC9460240 DOI: 10.3390/polym14173608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 08/26/2022] [Accepted: 08/28/2022] [Indexed: 11/16/2022] Open
Abstract
Bio-based plasticizers derived from renewable resources represent a sustainable replacement for petrochemical-based plasticizers. Vegetable oils are widely available, non-toxic and biodegradable, resistant to evaporation, mostly colorless and stable to light and heat, and are a suitable alternative for phthalate plasticizers. Plasticized poly(lactic acid) (PLA) materials containing 5 wt%, 10 wt%, 15 wt% and 20 wt% natural castor oil (R) were prepared by melt blending to improve the ductility of PLA. Three castor oil adducts with maleic anhydride (MA), methyl nadic anhydride (methyl-5-norbornene-2,3-dicarboxylic anhydride) (NA) and hexahydro-4-methylphthalic anhydride (HA), previously synthesized, were incorporated in a concentration of 15 wt% each in PLA and compared with PLA plasticized with natural R. The physico-chemical properties of PLA/R blends were investigated by means of processability, chemical structure, surface wettability, mechanical, rheological and thermal characteristics. The addition of natural and modified R significantly improved the melt processing by decreasing the melt viscosity by ~95%, increased the surface hydrophobicity, enhanced the flexibility by ~14 times in the case of PLA/20R blend and ~11 times in the case of PLA/15R-MA blend as compared with neat PLA. The TG/DTG results showed that the natural R used up to 20 wt% could significantly improve the thermal stability of PLA, similar to the maleic anhydride-modified R. Based on the obtained results, up to 20 wt% natural R and 15 wt% MA-, HA- or NA-modified R might be used as environmentally friendly plasticizers that can improve the overall properties of PLA, depending on the intended food packaging applications.
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Affiliation(s)
- Raluca Nicoleta Darie-Niță
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Anamaria Irimia
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Vasile Cristian Grigoraș
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Fănică Mustață
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Niță Tudorachi
- Natural Polymers, Bioactive and Biocompatible Materials Department, Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Maria Râpă
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
- Correspondence:
| | - Joanna Ludwiczak
- Faculty of Environmental Engineering, University of Science and Technology, 50-013 Wrocław, Poland
| | - Andrzej Iwanczuk
- Faculty of Environmental Engineering, University of Science and Technology, 50-013 Wrocław, Poland
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18
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Yu Y, Zhou Z, Huang G, Cheng H, Han L, Zhao S, Chen Y, Meng F. Purifying water with silver nanoparticles (AgNPs)-incorporated membranes: Recent advancements and critical challenges. WATER RESEARCH 2022; 222:118901. [PMID: 35933814 DOI: 10.1016/j.watres.2022.118901] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/19/2022] [Accepted: 07/23/2022] [Indexed: 06/15/2023]
Abstract
In the face of the growing global water crisis, membrane technology is a promising means of purifying water and wastewater. Silver nanoparticles (AgNPs) have been widely used to improve membrane performance, for antibiofouling, and to aid in photocatalytic degradation, thermal response, and electro-conductivity. However, several critical issues such as short antimicrobial periods, trade-off effects and silver inactivation seriously restrict the engineering application of AgNPs-incorporated membranes. In addition, there is controversy around the use of AgNPs given the toxic preparation process and environmental/biological risks. Hence, it is of great significance to summarize and analyze the recent developments and critical challenges in the use of AgNPs-incorporated membranes in water and wastewater treatment, and to propose potential solutions. We reviewed the different properties and functions of AgNPs and their corresponding applications in AgNPs-incorporated membranes. Recently, multifunctional, novel AgNP-incorporated membranes combined with other functional materials have been developed with high-performance. We further clarified the synergistic mechanisms between AgNPs and these novel nanomaterials and/or polymers, and elucidated their functions and roles in membrane separation. Finally, the critical challenges of AgNPs-incorporated membranes and the proposed solutions were outlined: i) Prolonging the antimicrobial cycle through long-term and controlled AgNPs release; ii) Overcoming the trade-off effect and organic fouling of the AgNPs-incorporated membranes; iii) Preparation of sustainable AgNPs-incorporated membranes; iv) Addressing biotoxicity induced by AgNPs; and v) Deactivation of AgNPs-incorporated membrane. Overall, this review provides a comprehensive discussion of the advancements and challenges of AgNPs-incorporated membranes and guides the development of more robust, multi-functional and sustainable AgNPs-incorporated membranes.
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Affiliation(s)
- Yuanyuan Yu
- College of Resources and Environment, Southwest University, Chongqing, 400715, China; Chongqing Engineering Research Center of Rural Cleaner Production, Chongqing, 400715, China
| | - Zhongbo Zhou
- College of Resources and Environment, Southwest University, Chongqing, 400715, China; Chongqing Engineering Research Center of Rural Cleaner Production, Chongqing, 400715, China.
| | - Guocheng Huang
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China
| | - Hong Cheng
- College of Environment and Ecology, Chongqing University, Chongqing, 400044, China
| | - Le Han
- College of Environment and Ecology, Chongqing University, Chongqing, 400044, China
| | - Shanshan Zhao
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510006, China
| | - Yucheng Chen
- College of Resources and Environment, Southwest University, Chongqing, 400715, China; Chongqing Engineering Research Center of Rural Cleaner Production, Chongqing, 400715, China
| | - Fangang Meng
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510006, China
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