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Nusair A, Barber M, Pramanik A, Ethridge C, William C, Alkhateb H, Ucak-Astarlioglu M, Ray PC, D'Alessio M. Graphene-coated sand for enhanced water reuse: Impact on water quality and chemicals of emerging concern. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 945:174078. [PMID: 38906279 DOI: 10.1016/j.scitotenv.2024.174078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 06/13/2024] [Accepted: 06/15/2024] [Indexed: 06/23/2024]
Abstract
This paper investigates the potential of graphene-coated sand (GCS) as an advanced filtration medium for improving water quality and mitigating chemicals of emerging concern (CECs) in treated municipal wastewater, aiming to enhance water reuse. The study utilizes three types of sand (Ottawa, masonry, and concrete) coated with graphene to assess the impact of surface morphology, particle shape, and chemical composition on coating and filtration efficiency. Additionally, sand coated with graphene and activated graphene coated sand were both tested to understand the effect of coating and activation on the filtration process. The materials were characterized using digital microscopy, Raman spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction analysis. The material's efficiency in removing turbidity, nutrients, chemical oxygen demand (COD), bacteria, and specific CECs (Aciclovir, Diatrizoic acid, Levodopa, Miconazole, Carbamazepine, Diphenhydramine, Irbesartan, Lidocaine, Losartan, and Sulfamethoxazole) was studied. Our findings indicate that GCS significantly improves water quality parameters, with notable efficiency in removing turbidity, COD (14.1 % and 69.1 % removal), and bacterial contaminants (64.9 % and 99.9 % removal). The study also highlights the material's capacity to remove challenging CECs like Sulfamethoxazole (up to 80 % removal) and Diphenhydramine (up to 90 % removal), showcasing its potential as a sustainable solution for water reuse applications. This research contributes to the field by providing a comprehensive evaluation of GCS in water treatment, suggesting its potential for removing CECs from treated municipal wastewater.
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Affiliation(s)
- Abdulla Nusair
- Department of Civil Engineering, University of Mississippi, Carrier Hall, University, MS 38677, USA; Center for Graphene Research and Innovation, University of Mississippi, University, MS 38677, USA
| | - Madelyn Barber
- Department of Civil Engineering, University of Mississippi, Carrier Hall, University, MS 38677, USA
| | - Avijit Pramanik
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217, USA
| | - Cheyenne Ethridge
- Department of Civil Engineering, University of Mississippi, Carrier Hall, University, MS 38677, USA
| | - Clinton William
- U.S. Arid Land Agricultural Research Center, Maricopa, AZ 85138, USA
| | - Hunain Alkhateb
- Department of Civil Engineering, University of Mississippi, Carrier Hall, University, MS 38677, USA; Center for Graphene Research and Innovation, University of Mississippi, University, MS 38677, USA
| | | | - Paresh Chandra Ray
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217, USA
| | - Matteo D'Alessio
- Department of Civil Engineering, University of Mississippi, Carrier Hall, University, MS 38677, USA.
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Mansourian-Tabaei M, Majdoub M, Sengottuvelu D, Stoddard DL, Thirumalai RVKG, Ucak-Astarlioglu MG, Al-Ostaz A, Nouranian S. Polyurea/Aminopropyl Isobutyl Polyhedral Oligomeric Silsesquioxane-Functionalized Graphene Nanoplatelet Nanocomposites for Force Protection Applications. ACS APPLIED MATERIALS & INTERFACES 2024; 16:19625-19641. [PMID: 38588400 DOI: 10.1021/acsami.4c02244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Herein, the development of new nanocomposite systems is reported based on one-part polyurea (PU) and aminopropyl isobutyl polyhedral oligomeric silsesquioxane (POSS)-functionalized graphene nanoplatelets (GNP-POSS) as compatible nanoreinforcements with the PU resin. GNP-POSS was effectively synthesized via a two-step synthesis protocol, including ultrasonication-assisted reaction and precipitation, and carefully characterized with respect to its chemical and crystalline structure, morphology, and thermal stability. FTIR and XPS spectroscopy analyses revealed that POSS interacts with the residual oxygen moieties of the GNPs through both covalent and noncovalent bonding. The X-ray diffraction pattern of GNP-POSS further revealed that the crystallinity of the GNPs was not altered after their functionalization with POSS. GNP-POSS was successfully incorporated in PU at contents of 1, 3, 5, and 10 wt % to yield PU/GNP-POSS nanocomposite films. An ATR-FTIR analysis of these films confirmed the presence of strong interfacial interactions between the urea groups of PU and the GNP-POSS functionalities. Moreover, the PU/GNP-POSS nanocomposite films exhibited enhanced thermal stability and mechanical properties compared to those of the neat PU film. The quasi-static tensile testing of the PU/GNP-POSS samples revealed remarkable enhancements in the tensile strength (from 7.9 for the neat PU to 25.1 MPa for PU/GNP-POSS) and Young's modulus (238-617 MPa), while elongation at break and toughness also showed 14 and 125% improvements, respectively. Finally, the effects of GNP-POSS content on the morphological, quasistatic tensile, and high-strain-rate dynamic behavior of the PU/GNP-POSS nanocomposite films were also investigated. Overall, the tests performed using a split-Hopkinson pressure bar setup revealed a large increase in the film strength (from 147.6 for the neat PU film to 199 MPa for the PU/GNP-POSS film) and a marginal increase in the energy density of the film (38.1-40.8 kJ/m3). These findings support the suitability of the PU/GNP-POSS nanocomposite films for force protection applications.
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Affiliation(s)
- Mohammad Mansourian-Tabaei
- Department of Chemical Engineering, University of Mississippi, University, Mississippi 38677, United States
- Center for Graphene Research and Innovation, University of Mississippi, University, Mississippi 38677, United States
| | - Mohammed Majdoub
- Center for Graphene Research and Innovation, University of Mississippi, University, Mississippi 38677, United States
| | - Dineshkumar Sengottuvelu
- Center for Graphene Research and Innovation, University of Mississippi, University, Mississippi 38677, United States
| | - Damian L Stoddard
- Center for Graphene Research and Innovation, University of Mississippi, University, Mississippi 38677, United States
- Department of Mechanical Engineering, University of Mississippi, University, Mississippi 38677, United States
| | - Rooban V K G Thirumalai
- Institute for Imaging and Analytical Technologies, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Mine G Ucak-Astarlioglu
- Geotechnical and Structures Laboratory, U.S. Army Engineer Research and Development Center, Vicksburg, Mississippi 39180-6199, United States
| | - Ahmed Al-Ostaz
- Center for Graphene Research and Innovation, University of Mississippi, University, Mississippi 38677, United States
- Department of Civil Engineering, University of Mississippi, University, Mississippi 38677, United States
| | - Sasan Nouranian
- Department of Chemical Engineering, University of Mississippi, University, Mississippi 38677, United States
- Center for Graphene Research and Innovation, University of Mississippi, University, Mississippi 38677, United States
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Intelligent pH-Sensitive Indicator Based on Chitosan@PVP Containing Extracted Anthocyanin and Reinforced with Sulfur Nanoparticles: Structure, Characteristic and Application in Food Packaging. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02445-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Majdoub M, Essamlali Y, Amedlous A, EL Gharrak A, Zahouily M. Nanocomposite-enhanced hydrophobicity effect in biosourced polyurethane with low volume fraction of organophilic CNC: towards solvent-absorbent and porous membranes. NEW J CHEM 2022. [DOI: 10.1039/d2nj02430f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we focus on the development of new nanocomposite porous membranes based on castor oil-derived polyurethane (PUBCO) and octadecylamine-functionalized cellulose nanocrystals (CNC-ODA) as compatible nanoreinforcements.
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Affiliation(s)
- Mohammed Majdoub
- Laboratory of Materials, Catalysis & Valorization of Natural Resources. Hassan II University, Mohammedia, 20650, Morocco
- MAScIR Foundation, VARENA Center, Rabat Design, Rue Mohamed El Jazouli, Madinat Al Irfane, 10100, Rabat, Morocco
| | - Younes Essamlali
- MAScIR Foundation, VARENA Center, Rabat Design, Rue Mohamed El Jazouli, Madinat Al Irfane, 10100, Rabat, Morocco
| | - Abdallah Amedlous
- Laboratory of Materials, Catalysis & Valorization of Natural Resources. Hassan II University, Mohammedia, 20650, Morocco
- MAScIR Foundation, VARENA Center, Rabat Design, Rue Mohamed El Jazouli, Madinat Al Irfane, 10100, Rabat, Morocco
| | - Abdelouahed EL Gharrak
- Laboratory of Materials, Catalysis & Valorization of Natural Resources. Hassan II University, Mohammedia, 20650, Morocco
- MAScIR Foundation, VARENA Center, Rabat Design, Rue Mohamed El Jazouli, Madinat Al Irfane, 10100, Rabat, Morocco
| | - Mohamed Zahouily
- Laboratory of Materials, Catalysis & Valorization of Natural Resources. Hassan II University, Mohammedia, 20650, Morocco
- MAScIR Foundation, VARENA Center, Rabat Design, Rue Mohamed El Jazouli, Madinat Al Irfane, 10100, Rabat, Morocco
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Advanced Methods for Hydroxylation of Vegetable Oils, Unsaturated Fatty Acids and Their Alkyl Esters. COATINGS 2021. [DOI: 10.3390/coatings12010013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Vegetable oils and their derivatives have great potential as renewable and sustainable raw materials for the production of polyurethanes and bio-based polyols. For industry an important process is their modification. Chemical reactions that are carried out on vegetable oils and their derivatives are: transesterification, auto-oxidation, hydrogenation, epoxidation, hydroxylation, acrylation, isocyanation and others. One of the modifications are reactions performed on double bonds and/or carbonyl moieties of plants oils and their derivatives. These reactions result in products that are actively used as binders in coating materials due to their unique structural properties. In this manuscript, we describe important technological methods for the introduction of hydroxyl groups: opening of oxirane rings by nucleophilic reagents such as: water, alcohols, glycols, amino alcohols, carboxylic acids; direct hydroxylation of unsaturated bonds with carboxylic peracids in combination with hydrolysis of carboxyl groups and hydration; hydroformylation of unsaturated bonds with subsequent hydrogenation and alkoxylation; and ozonolysis of unsaturated bonds in combination with subsequent hydrogenation and alkoxylation.
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Allami T, Alamiery A, Nassir MH, Kadhum AH. Investigating Physio-Thermo-Mechanical Properties of Polyurethane and Thermoplastics Nanocomposite in Various Applications. Polymers (Basel) 2021; 13:2467. [PMID: 34372071 PMCID: PMC8347130 DOI: 10.3390/polym13152467] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 12/03/2022] Open
Abstract
The effect of the soft and hard polyurethane (PU) segments caused by the hydrogen link in phase-separation kinetics was studied to investigate the morphological annealing of PU and thermoplastic polyurethane (TPU). The significance of the segmented PUs is to achieve enough stability for further applications in biomedical and environmental fields. In addition, other research focuses on widening the plastic features and adjusting the PU-polyimide ratio to create elastomer of the poly(urethane-imide). Regarding TPU- and PU-nanocomposite, numerous studies investigated the incorporation of inorganic nanofillers such as carbon or clay to incorporating TPU-nanocomposite in several applications. Additionally, the complete exfoliation was observed up to 5% and 3% of TPU-clay modified with 12 amino lauric acid and benzidine, respectively. PU-nanocomposite of 5 wt.% Cloisite®30B showed an increase in modulus and tensile strength by 110% and 160%, respectively. However, the nanocomposite PU-0.5 wt.% Carbone Nanotubes (CNTs) show an increase in the tensile modulus by 30% to 90% for blown and flat films, respectively. Coating PU influences stress-strain behavior because of the interaction between the soft segment and physical crosslinkers. The thermophysical properties of the TPU matrix have shown two glass transition temperatures (Tg's) corresponding to the soft and the hard segment. Adding a small amount of tethered clay shifts Tg for both segments by 44 °C and 13 °C, respectively, while adding clay from 1 to 5 wt.% results in increasing the thermal stability of TPU composite from 12 to 34 °C, respectively. The differential scanning calorimetry (DSC) was used to investigate the phase structure of PU dispersion, showing an increase in thermal stability, solubility, and flexibility. Regarding the electrical properties, the maximum piezoresistivity (10 S/m) of 7.4 wt.% MWCNT was enhanced by 92.92%. The chemical structure of the PU-CNT composite has shown a degree of agglomeration under disruption of the sp2 carbon structure. However, with extended graphene loading to 5.7 wt.%, piezoresistivity could hit 10-1 S/m, less than 100 times that of PU. In addition to electrical properties, the acoustic behavior of MWCNT (0.35 wt.%)/SiO2 (0.2 wt.%)/PU has shown sound absorption of 80 dB compared to the PU foam sample. Other nanofillers, such as SiO2, TiO2, ZnO, Al2O3, were studied showing an improvement in the thermal stability of the polymer and enhancing scratch and abrasion resistance.
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Affiliation(s)
- Tyser Allami
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor Darul Ehsan, Malaysia; (A.A.); (M.H.N.); (A.H.K.)
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Chakraborty I, Chatterjee K. Polymers and Composites Derived from Castor Oil as Sustainable Materials and Degradable Biomaterials: Current Status and Emerging Trends. Biomacromolecules 2020; 21:4639-4662. [PMID: 33222440 DOI: 10.1021/acs.biomac.0c01291] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Recent years have seen rapid growth in utilizing vegetable oils to derive a wide variety of polymers to replace petroleum-based polymers for minimizing environmental impact. Nonedible castor oil (CO) can be extracted from castor plants that grow easily, even in an arid land. CO is a promising source for developing several polymers such as polyurethanes, polyesters, polyamides, and epoxy-polymers. Several synthesis routes have been developed, and distinct properties of polymers have been studied for industrial applications. Furthermore, fillers and fibers, including nanomaterials, have been incorporated in these polymers for enhancing their physical, thermal, and mechanical properties. This review highlights the development of CO-based polymers and their composites with attractive properties for industrial and biomedical applications. Recent advancements in CO-based polymers and their composites are presented along with a discussion on future opportunities for further developments in diverse applications.
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Affiliation(s)
- Indranil Chakraborty
- Department of Materials Engineering, Indian Institute of Science, Bengaluru, Karnataka, India 560012
| | - Kaushik Chatterjee
- Department of Materials Engineering, Indian Institute of Science, Bengaluru, Karnataka, India 560012
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Achagri G, Essamlali Y, Amadine O, Majdoub M, Chakir A, Zahouily M. Surface modification of highly hydrophobic polyester fabric coated with octadecylamine-functionalized graphene nanosheets. RSC Adv 2020; 10:24941-24950. [PMID: 35517480 PMCID: PMC9055142 DOI: 10.1039/d0ra02655g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 06/19/2020] [Indexed: 11/29/2022] Open
Abstract
This study focuses on the design of highly hydrophobic polyester fabrics (PET) coated with organophilic graphene nanosheets (G-ODA) through a simple, cost-effective and scalable coating method. The organophilic graphene oxide was successfully synthesized by covalently grafting a long chain fatty amine on its surface and was fully characterized by various physicochemical techniques. G-ODA was coated at different loadings onto the PET fabric ranging from 1 to 7 wt% to produce uniformly dispersed PET@G-ODA fabrics with multifunctional performances. FTIR has confirmed the formation of strong interfacial interaction between the PET and G-ODA functional groups. Moreover, the produced PET@G-ODA fabrics resulted in achieving enhanced thermal stability as well as excellent water repellency compared to the pristine PET. Water contact angle measurements showed a tremendous enhancement of surface hydrophobicity up to 148° with 7 wt% loading of G-ODA. Tensile strength tests revealed that our fabric exhibited excellent mechanical properties compared to neat PET. In addition, the designed PET@G-ODA fabrics demonstrated excellent oil/water separation efficiency for different oil/water mixtures. The obtained results are very promising in terms of designing and producing functional PET fabrics with improved thermal and surface proprieties. This study focuses on the design of highly hydrophobic polyester fabrics (PET) coated with organophilic graphene nanosheets (G-ODA) through a simple, cost-effective and scalable coating method.![]()
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Affiliation(s)
- Ghizlane Achagri
- Laboratoire de Matériaux, Catalyse et Valorisation des Ressources Naturelles, URAC 24, FST, University Hassan II-Casablanca Morroco
| | - Younes Essamlali
- VARENA Center, MAScIR Foundation, Rabat Design Rue Mohamed El Jazouli, Medinat El Irfane 10100-Rabat Morroco
| | - Othmane Amadine
- VARENA Center, MAScIR Foundation, Rabat Design Rue Mohamed El Jazouli, Medinat El Irfane 10100-Rabat Morroco
| | - Mohamed Majdoub
- VARENA Center, MAScIR Foundation, Rabat Design Rue Mohamed El Jazouli, Medinat El Irfane 10100-Rabat Morroco
| | - Achraf Chakir
- Laboratoire de Matériaux, Catalyse et Valorisation des Ressources Naturelles, URAC 24, FST, University Hassan II-Casablanca Morroco
| | - Mohamed Zahouily
- Laboratoire de Matériaux, Catalyse et Valorisation des Ressources Naturelles, URAC 24, FST, University Hassan II-Casablanca Morroco.,VARENA Center, MAScIR Foundation, Rabat Design Rue Mohamed El Jazouli, Medinat El Irfane 10100-Rabat Morroco
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Palaniappan N, Cole IS, Kuznetsov AE. Experimental and computational studies of graphene oxide covalently functionalized by octylamine: electrochemical stability, hydrogen evolution, and corrosion inhibition of the AZ13 Mg alloy in 3.5% NaCl. RSC Adv 2020; 10:11426-11434. [PMID: 35495345 PMCID: PMC9050467 DOI: 10.1039/c9ra10702a] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 02/27/2020] [Indexed: 01/21/2023] Open
Abstract
Recently, carbon allotropes were shown to play a key role in energy harvesting and as hydrophobic coatings on metal alloys. We have designed octylamine-functionalized graphene oxide materials for energy harvesting and as an anti-corrosion coating for metal alloy protection in a 3.5% NaCl medium. The material has been characterized by different techniques to confirm the structure and composition of the modified graphene oxide sheet: FTIR spectroscopy, XRD, Raman spectroscopy, FESEM and TEM. The electrochemical stability and corrosion inhibition efficiency were studied by electrochemical methods. The electrochemical stability increased with an increase in the applied voltage up to 500 mV, and the corrosion inhibition efficiency was shown to be 73%. The coating stability studies showed a long stability time in the corrosion medium. Octylamine-functionalized graphene oxide chemisorbed onto a Mg alloy surface by non-bonding electron.![]()
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Affiliation(s)
- N. Palaniappan
- School of Chemical Sciences
- Central University of Gujarat
- India
| | - I. S. Cole
- Advanced Manufacturing and Fabrication Research and Innovation
- RMIT University
- Melbourne
- Australia
| | - A. E. Kuznetsov
- Department of Chemistry
- Universidad Técnica Federico Santa Maria
- Santiago
- Chile
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