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Ahmadian M, Jaymand M. Interpenetrating polymer network hydrogels for removal of synthetic dyes: A comprehensive review. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Oyarce E, Cantero-López P, Roa K, Boulett A, Yáñez O, Santander P, Del C Pizarro G, Sánchez J. Removal of highly concentrated methylene blue dye by cellulose nanofiber biocomposites. Int J Biol Macromol 2023; 238:124045. [PMID: 36934817 DOI: 10.1016/j.ijbiomac.2023.124045] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 02/16/2023] [Accepted: 03/11/2023] [Indexed: 03/19/2023]
Abstract
The contamination of water by dyes in high concentrations is a worldwide concern, and it has prompted the development of efficient, economical, and environmentally friendly materials and technologies for water purification. The hydration and adsorption capacity for methylene blue (MB) in biocomposites (BCs) based on cellulose nanofiber (CNF) (0 to 2 wt%) were studied. BCs were synthesized through a simple and straightforward route and characterized by spectroscopy, microscopic techniques and thermogravimetric analysis, among others. Hydration studies showed that BCs prepared with 2 wt% of CNF can absorb large volumes of water, approximately 2274 % in the case of poly 2-acrylamide-2-methyl-1-propanesulfonic acid (PAMPS)-CNF and 2408 % in poly sodium 4-styrene sulfonate (PSSNa)-CNF. These BCs showed outstanding adsorption capacity for highly concentrated MB solutions (4536 mg g-1 PAMPS-CNF and 11,930 mg g-1 PSSNa-CNF). It was confirmed that the adsorption mechanism is through electrostatic interactions. Finally, BCs showed high MB adsorption efficiency after several sorption-desorption cycles and on a simulated textile effluent. Furthermore, the theoretical results showed a preferential interaction between MB and the semiflexible polymer chains at the lowest energy setting. The development and study of a new adsorbent material with high MB removal performance that is easy to prepare, economical and reusable for potential use in water purification treatments was successfully achieved.
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Affiliation(s)
- Estefanía Oyarce
- Universidad de Santiago de Chile (USACH), Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Santiago, Chile
| | - Plinio Cantero-López
- Universidad Andres Bello, Facultad de Ciencias Exactas, Departamento de Ciencias, Químicas, Viña del Mar, Chile; Center of Applied Nanoscience (CANS), Facultad de Ciencias Exactas, Universidad Andres Bello, Santiago, Chile; Relativistic Molecular Physics Group (ReMoPh), PhD program in Molecular Physical Chemistry, Facultad de Ciencias Exactas, Universidad Andres Bello, Santiago, Chile
| | - Karina Roa
- Universidad de Santiago de Chile (USACH), Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Santiago, Chile
| | - Andrés Boulett
- Universidad de Santiago de Chile (USACH), Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Santiago, Chile
| | - Osvaldo Yáñez
- Facultad de Ingeniería y Negocios, Universidad de las Américas, Santiago, Chile; Center of New Drugs for Hypertension (CENDHY), Santiago, Chile
| | - Paola Santander
- Universidad de Santiago de Chile (USACH), Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Santiago, Chile
| | - Guadalupe Del C Pizarro
- Departamento de Química, Universidad Tecnológica Metropolitana, J. P. Alessandri 1242, Santiago, Chile
| | - Julio Sánchez
- Universidad de Santiago de Chile (USACH), Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Santiago, Chile.
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Nanocellulose bio-based composites for the removal of methylene blue from water: An experimental and theoretical exploration. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Bui TQ, Cao VD, Wang W, Kjøniksen AL. Recovered Energy from Salinity Gradients Utilizing Various Poly(Acrylic Acid)-Based Hydrogels. Polymers (Basel) 2021; 13:polym13040645. [PMID: 33671592 PMCID: PMC7926844 DOI: 10.3390/polym13040645] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 01/08/2023] Open
Abstract
Hydrogels can be utilized to extract energy from salinity gradients when river water mixes with seawater. Saline-sensitive hydrogels exhibit a reversible swelling/shrinking process when they are, alternately, exposed to fresh and saline water. We present a comparison of several poly(acrylic acid)-based hydrogels, including poly(acrylic acid) (PAA), poly(acrylic acid-co-vinylsulfonic acid) (PAA/PVSA), and poly(4-styrenessulfonic acid-co-maleic acid) interpenetrated in a poly(acrylic acid) network (PAA/PSSA-MA). The hydrogels were synthesized by free radical polymerization, copolymerization, and by semi-IPN (interpenetrating polymer network). The hydrogels were placed in a piston-like system to measure the recovered energy. Semi-IPN hydrogels exhibit a much higher recovered energy compared to the copolymer and PAA hydrogel. The recovered energy of 60 g swollen gel was up to 4 J for the PAA/PSSA-MA hydrogel. The obtained energy per gram dried gel was up to 13.3 J/g. The swelling volume of the hydrogels was maintained for 30 cycles without decline in recovered energy.
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Affiliation(s)
- Tri Quang Bui
- Faculty of Engineering, Østfold University College, P.O. Box 700, 1757 Halden, Norway; (T.Q.B.); (V.D.C.)
- Department of Chemistry & Center for Pharmacy, University of Bergen, P.O. Box 7803, 5020 Bergen, Norway;
| | - Vinh Duy Cao
- Faculty of Engineering, Østfold University College, P.O. Box 700, 1757 Halden, Norway; (T.Q.B.); (V.D.C.)
| | - Wei Wang
- Department of Chemistry & Center for Pharmacy, University of Bergen, P.O. Box 7803, 5020 Bergen, Norway;
| | - Anna-Lena Kjøniksen
- Faculty of Engineering, Østfold University College, P.O. Box 700, 1757 Halden, Norway; (T.Q.B.); (V.D.C.)
- Correspondence:
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