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Monteverde G, Bianco F, Papetti P, Komínková D, Spasiano D, Paolella G, Muscetta M, Varjani S, Han N, Esposito G, Race M. Reuse of polymeric waste for the treatment of marine water polluted by diesel. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 356:120529. [PMID: 38490006 DOI: 10.1016/j.jenvman.2024.120529] [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: 08/22/2023] [Revised: 10/23/2023] [Accepted: 02/29/2024] [Indexed: 03/17/2024]
Abstract
Accidental diesel spills can occur in marine environments such as harbors, leading to adverse effects on the environmental compartment and humans. This study proposes the surgical mask as an affordable and sustainable adsorbent for the remediation of diesel-contaminated seawater to cope with the polymeric waste generated monthly in hospital facilities. This approach can also be helpful considering a possible future pandemic, alleviating the pressure on the waste management system by avoiding improper mask incineration and landfilling, as instead occurred during the previous COVID-19. Batch adsorption-desorption experiments revealed a complete diesel removal from seawater after 120 min with the intact laceless mask, which showed an adsorption capacity of up to 3.43 g/g. The adsorption curve was better predicted via Weber and Morris's kinetic (R2 = 0.876) and, in general, with Temkin isotherm (R2 = 0.965-0.996) probably due to the occurrence of chemisorption with intraparticle diffusion as one of the rates-determining steps. A hysteresis index of 0.23-0.36 was obtained from the desorption isotherms, suggesting that diesel adsorption onto surgical masks was faster than the desorption mechanism. Also, the effect of pH, ionic strength and temperature on diesel adsorption was examined. The results from the reusability tests indicated that the surgical mask can be regenerated for 5 consecutive cycles while decreasing the adsorption capacity by only approximately 11%.
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Affiliation(s)
- Gelsomino Monteverde
- Department of Economics and Law, Territorial and Products Analysis Laboratory, University of Cassino and Southern Lazio, Via S. Angelo, Folcara, 03043, Cassino, Italy
| | - Francesco Bianco
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via Di Biasio 43, 03043, Cassino, Italy.
| | - Patrizia Papetti
- Department of Economics and Law, Territorial and Products Analysis Laboratory, University of Cassino and Southern Lazio, Via S. Angelo, Folcara, 03043, Cassino, Italy
| | - Dana Komínková
- Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Prague-Suchdol, 165 00, Czech Republic
| | - Danilo Spasiano
- Department of Civil, Environmental, Land, Building Engineering and Chemistry, Polytechnic University of Bari, Via E. Orabona 4, 70125, Bari, Italy
| | - Giulia Paolella
- Department of Civil, Architectural and Environmental Engineering, University of Napoli Federico II, Via Claudio 21, 80125, Napoli, Italy
| | - Marica Muscetta
- Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, Piazzale V. Tecchio 80, 80125, Naples, Italy
| | - Sunita Varjani
- School of Engineering, University of Petroleum and Energy Studies, Dehradun 248 007, Uttarakhand, India; Institute of Chartered Waste Managers, Gopalpura Bypass, Jaipur 302019, Rajasthan, India
| | - Ning Han
- Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, 3001, Leuven, Belgium
| | - Giovanni Esposito
- Department of Civil, Architectural and Environmental Engineering, University of Napoli Federico II, Via Claudio 21, 80125, Napoli, Italy
| | - Marco Race
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via Di Biasio 43, 03043, Cassino, Italy
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Budharaju H, Chandrababu H, Zennifer A, Chellappan D, Sethuraman S, Sundaramurthi D. Tuning thermoresponsive properties of carboxymethyl cellulose (CMC)-agarose composite bioinks to fabricate complex 3D constructs for regenerative medicine. Int J Biol Macromol 2024; 260:129443. [PMID: 38228200 DOI: 10.1016/j.ijbiomac.2024.129443] [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: 09/29/2023] [Revised: 12/23/2023] [Accepted: 01/10/2024] [Indexed: 01/18/2024]
Abstract
3D bioprinting has emerged as a viable tool to fabricate 3D tissue constructs with high precision using various bioinks which offer instantaneous gelation, shape fidelity, and cytocompatibility. Among various bioinks, cellulose is the most abundantly available natural polymer & widely used as bioink for 3D bioprinting applications. To mitigate the demanding crosslinking needs of cellulose, it is frequently chemically modified or blended with other polymers to develop stable hydrogels. In this study, we have developed a thermoresponsive, composite bioink using carboxymethyl cellulose (CMC) and agarose in different ratios (9:1, 8:2, 7:3, 6:4, and 5:5). Among the tested combinations, the 5:5 ratio showed better gel formation at 37 °C and were further characterized for physicochemical properties. Cytocompatibility was assessed by in vitro extract cytotoxicity assay (ISO 10993-5) using skin fibroblasts cells. CMC-agarose (5:5) bioink was successfully used to fabricate complex 3D structures through extrusion bioprinting and maintained over 80 % cell viability over seven days. Finally, in vivo studies using rat full-thickness wounds showed the potential of CMC-agarose bulk and bioprinted gels in promoting skin regeneration. These results indicate the cytocompatibility and suitability of CMC-agarose bioinks for tissue engineering and 3D bioprinting applications.
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Affiliation(s)
- Harshavardhan Budharaju
- Tissue Engineering & Additive Manufacturing (TEAM) Lab Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, India
| | - Harini Chandrababu
- Tissue Engineering & Additive Manufacturing (TEAM) Lab Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, India
| | - Allen Zennifer
- Tissue Engineering & Additive Manufacturing (TEAM) Lab Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, India
| | - Davidraj Chellappan
- Central Animal Facility (CAF), School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, India
| | - Swaminathan Sethuraman
- Tissue Engineering & Additive Manufacturing (TEAM) Lab Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, India
| | - Dhakshinamoorthy Sundaramurthi
- Tissue Engineering & Additive Manufacturing (TEAM) Lab Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu, India.
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Tajari E, Bashiri H. Gasoil removal from aqueous solution using magnetic metal-organic framework adsorbent based on the cellulosic fibrous of Prosopis farcta plant. Int J Biol Macromol 2023; 245:125473. [PMID: 37343608 DOI: 10.1016/j.ijbiomac.2023.125473] [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: 02/17/2023] [Revised: 05/30/2023] [Accepted: 06/16/2023] [Indexed: 06/23/2023]
Abstract
Recently, the leakage of Gasoil and other petroleum substances into the seas, surface water, and wastewater has become a global problem; therefore, providing a solution to remove these pollutants seems vital. In the current research, we investigated the removal of floating Gasoil from aqueous solutions. First, the magnetic metal-organic framework was prepared as a new adsorbent based on the cellulosic fibrous of the Prosopis farcta plant (magnetic- cellulose@MIL-53(Fe) carbon aerogel). Using design of experiment, the effect of parameters pH, Gasoil concentration, and adsorbent weight on Gasoil removal were investigated. The adsorbent prepared under optimal parameters can remove 100% floating Gasoil from the aqueous solution. The adsorption capacity of the magnetic- cellulose@MIL-53 (Fe) carbon aerogel is 7.48 g.g-1, which is almost 100 times more than other Fe-based adsorbents. The study of the effect of time showed that the adsorption of Gasoil by the adsorbent is not dependent on time. Gasoil adsorption on magnetic- cellulose@MIL-53(Fe) carbon aerogel follows the Freundlich isotherm with a correlation coefficient of 0.9933. Thermodynamic factors Gibbs free energy, enthalpy, and entropy changes have been calculated. Accordingly, magnetic- cellulose @MIL-53(Fe) carbon aerogel has rapid separation and high stability, and it could be used as a good adsorbent to remove Gasoil from an aqueous solution. With good cycling stability of 86% retention of the initial adsorption value after ten adsorption/desorption cycles.
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Affiliation(s)
- Elaheh Tajari
- Department of Physical Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
| | - Hadis Bashiri
- Department of Physical Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran.
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Sun W, Ou H, Chen Z. Study on Preparation of Chitosan/Polyvinyl Alcohol Aerogel with Graphene-Intercalated Attapulgite(GO-ATP@CS-PVA) and Adsorption Properties of Crystal Violet Dye. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3931. [PMID: 36432217 PMCID: PMC9692565 DOI: 10.3390/nano12223931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/01/2022] [Accepted: 11/06/2022] [Indexed: 06/16/2023]
Abstract
Adsorption is one of the effective methods of treating dye wastewater. However, the selection of suitable adsorbent materials is the key to treating dye wastewater. In this paper, GO-ATP was prepared by an intercalation method by inserting graphene oxide (GO) into the interlayer of alabaster attapulgite (ATP), and GO-ATP@CS-PVA aerogel was prepared by co-blending-crosslinking with chitosan (CS) and polyvinyl alcohol (PVA) for the adsorption and removal of crystalline violet dye from the solution. The physicochemical properties of the materials are characterized by various methods. The results showed that the layer spacing of the GO-ATP increased from 1.063 nm to 1.185 nm for the ATP, and the specific surface area was 187.65 m2·g-1, which was 45.7% greater than that of the ATP. The FTIR results further confirmed the success of the GO-ATP intercalation modification. The thermogravimetric analysis (TGA) results show that the aerogel has good thermal stability properties. The results of static adsorption experiments show that at 302 K and pH 9.0, the adsorption capacity of the GO-ATP@CS-PVA aerogel is 136.06 mg·g-1. The mass of the aerogel after adsorption-solution equilibrium is 11.4 times that of the initial mass, with excellent adsorption capacity. The quasi-secondary kinetic, Freundlich, and Temkin isotherm models can better describe the adsorption process of the aerogel. The biobased composite aerogel GO-ATP@CS-PVA has good swelling properties, a large specific surface area, easy collection and a low preparation cost. The good network structure gives it unique resilience. The incorporation of clay as a nano-filler can also improve the mechanical properties of the composite aerogel.
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Affiliation(s)
| | - Hongxiang Ou
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China
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