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Hashemi E, Norouzi MM, Sadeghi-Kiakhani M. Magnetic biochar as a revolutionizing approach for diverse dye pollutants elimination: A comprehensive review. ENVIRONMENTAL RESEARCH 2024; 261:119548. [PMID: 38977156 DOI: 10.1016/j.envres.2024.119548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/29/2024] [Accepted: 07/01/2024] [Indexed: 07/10/2024]
Abstract
The term "biomass" encompasses all substances found in the natural world that were once alive or derived from living organisms or their byproducts. These substances consist of organic molecules containing hydrogen, typically oxygen, frequently nitrogen, and small amounts of heavy, alkaline earth and alkali metals. Magnetic biochar refers to a type of material derived from biomass that has been magnetized typically by adding magnetic components such as magnetic iron oxides to display magnetic properties. These materials are extensively applicable in widespread areas like environmental remediation and catalysis. The magnetic properties of these compounds made them ideal for practical applications through their easy separation from a reaction mixture or environmental sample by applying a magnetic field. With the evolving global strategy focused on protecting the planet and moving towards a circular, cost-effective economy, natural compounds, and biomass have become particularly important in the field of biochemistry. The current research explores a comparative analysis of the versatility and potential of biomass for eliminating dyes as a sustainable, economical, easy, compatible, and biodegradable method. The elimination study focused on the removal of various dyes as pollutants. Various operational parameters which influenced the dye removal process were also discussed. Furthermore, the research explained, in detail, adsorption kinetic models, types of isotherms, and desorption properties of magnetic biochar adsorbents. This comprehensive review offers an advanced framework for the effective use of magnetic biochar, removing dyes from textile wastewater.
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Affiliation(s)
- Elaheh Hashemi
- Department of Chemistry, Faculty of Sciences, Shahid Rajaee Teacher Training University, P.O. Box: 1678815811, Tehran, Iran.
| | - Mohammad-Mahdi Norouzi
- Department of Chemistry, Faculty of Sciences, Shahid Rajaee Teacher Training University, P.O. Box: 1678815811, Tehran, Iran
| | - Mousa Sadeghi-Kiakhani
- Institute for Color Science and Technology, Department of Organic Colorants, P.O. Box: 16765-654, Tehran, Iran
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Balintova M, Estokova A. Materials for Heavy Metals Removal from Waters. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1935. [PMID: 38730742 PMCID: PMC11084955 DOI: 10.3390/ma17091935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 04/19/2024] [Indexed: 05/13/2024]
Abstract
Although heavy metal ions are naturally present in the environment, their concentrations have significantly increased due to industrial activities [...].
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Affiliation(s)
- Magdalena Balintova
- Department of Environmental Engineering, Institute for Sustainable and Circular Construction, Faculty of Civil Engineering, Technical University of Kosice, Vysokoskolska 4, 042 00 Kosice, Slovakia
| | - Adriana Estokova
- Department of Material Engineering, Institute for Sustainable and Circular Construction, Faculty of Civil Engineering, Technical University of Kosice, Vysokoskolska 4, 042 00 Kosice, Slovakia;
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Kablanbekov A, Yefremova S, Berdikulova F, Satbaev S, Yermishin S, Shalabaev N, Satbaev B, Terlikbayeva A, Zharmenov A. Rice Husk Cellulose-Based Adsorbent to Extract Rare Metals: Preparing and Properties. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6277. [PMID: 37763555 PMCID: PMC10533061 DOI: 10.3390/ma16186277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/11/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023]
Abstract
Adsorption is one of the common stages in the hydrometallurgy of rare metals. Its efficiency is largely determined by the quality of the sorbent used. The purpose of this work was to create an activated sorbent based on rice husk cellulose for the extraction of rhenium from aqueous solutions. Two types of cellulose were obtained by treating rice husk with a 1.5% NaOH solution (alkaline cellulose) and a nitric acid solution in ethyl alcohol (Kürschner and Hoffer cellulose). They were tested by IR, SEM, TA, TPD-MS, and XRD methods. It was found that Kürschner and Hoffer cellulose does not contain lignin and retains structural order to a greater extent. By means of this cellulose carbonization at 600 °C and activation by physical, chemical, and combined methods, a series of sorbents were prepared and studied by different methods. It was determined that the sorbent KHC4-600VA obtained by combined activation of cellulose carbonizate by water vapor at 850 °C, followed by an alkaline treatment, has the best textural characteristics: S-~1200 m2·g-1, V-1.22 cm3·g-1, and R-2.05 nm. KHC4-600VA provides 90% recovery of Re (VII) ions from aqueous solutions. According to the Freundlich model, sorption proceeds favorably on the sorbent's heterogeneous surface.
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Affiliation(s)
- Askhat Kablanbekov
- National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan RSE, Almaty 050036, Kazakhstan; (A.K.); (F.B.); (S.Y.); (A.T.); (A.Z.)
- School of Materials Science and Green Technologies, Kazakh-British Technical University, Almaty 050000, Kazakhstan
| | - Svetlana Yefremova
- National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan RSE, Almaty 050036, Kazakhstan; (A.K.); (F.B.); (S.Y.); (A.T.); (A.Z.)
| | - Feruza Berdikulova
- National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan RSE, Almaty 050036, Kazakhstan; (A.K.); (F.B.); (S.Y.); (A.T.); (A.Z.)
| | - Serik Satbaev
- RSE Astana Branch National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan, Astana 010000, Kazakhstan; (S.S.); (N.S.); (B.S.)
| | - Sergey Yermishin
- National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan RSE, Almaty 050036, Kazakhstan; (A.K.); (F.B.); (S.Y.); (A.T.); (A.Z.)
| | - Nurgali Shalabaev
- RSE Astana Branch National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan, Astana 010000, Kazakhstan; (S.S.); (N.S.); (B.S.)
- The Department of Nanotechnology and Metallurgy, Mechanical Engineering Faculty, Karaganda Technical University, Karaganda 100000, Kazakhstan
| | - Baimakhan Satbaev
- RSE Astana Branch National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan, Astana 010000, Kazakhstan; (S.S.); (N.S.); (B.S.)
| | - Alma Terlikbayeva
- National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan RSE, Almaty 050036, Kazakhstan; (A.K.); (F.B.); (S.Y.); (A.T.); (A.Z.)
| | - Abdurassul Zharmenov
- National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan RSE, Almaty 050036, Kazakhstan; (A.K.); (F.B.); (S.Y.); (A.T.); (A.Z.)
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Tee GT, Gok XY, Yong WF. Adsorption of pollutants in wastewater via biosorbents, nanoparticles and magnetic biosorbents: A review. ENVIRONMENTAL RESEARCH 2022; 212:113248. [PMID: 35405129 DOI: 10.1016/j.envres.2022.113248] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/08/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Adsorption has gained much attention as one of the efficient approaches to remediate the contaminants in wastewater. Herein, this critical review focuses on the preparation, modification, application and regeneration of the biosorbents, nanoparticles and magnetic biosorbents for the wastewater treatment in recent 5 years (2017-2021). Among these materials, the development of magnetic biosorbents is attractive owing to their variable active sites, high specific surface area, easy separation and low cost. To improve the adsorption performance of biosorbents, the chemical activations such as acid, alkali and salt activations of biosorbents are discussed. In general, the oxidation reaction in acid, alkali and salt activations increases the porosity of biosorbents. The surface characteristics, surface chemistry of the biosorbents and magnetic biosorbents such as electrostatic interaction, π-π interaction and hydrogen bonding are highlighted. Ionic compounds are separated through ion exchange, surface charge and electrostatic interactions while the organic pollutants are removed via hydrophobicity, π-π interactions and hydrogen bonding. The effect of solution pH, adsorbent dosage, initial concentration of pollutants, adsorption duration and temperature on the adsorption capacity, and removal efficiency are discussed. Generally, an increase in adsorbent dosage resulted in a decrease in adsorption capacity due to the excessive active sites. On the other hand, a higher initial concentration or an increase in contact time of adsorbent increased the driving force, subsequently enhancing the adsorption capacity. Finally, this review will be concluded with a summary, challenges and future outlook of magnetic biosorbents. It is anticipated that this review will provide insights into engineering advanced and suitable materials to achieve cost-effective and scalable adsorbents for practical and sustainable environmental remediation.
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Affiliation(s)
- Guat Teng Tee
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor Darul Ehsan, 43900, Malaysia
| | - Xie Yuen Gok
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor Darul Ehsan, 43900, Malaysia
| | - Wai Fen Yong
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor Darul Ehsan, 43900, Malaysia; College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China.
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Polymeric Biomass Derived Adsorbents for Co(II) Remediation, Recycling and Analysis. Polymers (Basel) 2022; 14:polym14091647. [PMID: 35566817 PMCID: PMC9102464 DOI: 10.3390/polym14091647] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/13/2022] [Accepted: 04/17/2022] [Indexed: 12/23/2022] Open
Abstract
The gradual replacement of conventional materials with materials tailored to the green development goals is one of the needs of the day. Correspondingly, this article reviews and integrates, for the first time, the gathered knowledge on the use of the adsorbents based on polymeric biomasses (biosorbents) for a cleaner separation of cobalt (Co) from synthetic and actual solutions. It is a two-part comprehensive approach that debates the Co biosorption potential of bio-based polymers from the perspective of their virtual and real applications for decontamination, recovery, and analytical purposes. First, the removal performances of these materials to batch and fixed column biosorption of Co(II) from mono-component and multi-metallic laboratory solutions are systematized and discussed. Following that, the focus of the first part is shifted to the analytical capabilities of the biosorbents proposed for Co(II) quantification from synthetic solutions. The second section considers the polymeric biomasses successfully incorporated in practical strategies for the removal and recovery of Co(II) from real solutions. The opportunities provided by the use of biosorbents for the development of accurate and greener procedures in Co(II) analysis are also highlighted. The directions in which the research on this topic should be continued and strengthened are suggested.
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Biochar from Wood Chips and Corn Cobs for Adsorption of Thioflavin T and Erythrosine B. MATERIALS 2022; 15:ma15041492. [PMID: 35208031 PMCID: PMC8876677 DOI: 10.3390/ma15041492] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/25/2022] [Accepted: 02/15/2022] [Indexed: 12/10/2022]
Abstract
Biochars from wood chips (WC) and corn cobs (CC) were prepared by slow pyrolysis and used for sorption separation of erythrosine B (EB) and thioflavin T (TT) in batch experiments. Biochar-based adsorbents were extensively characterized using FTIR, XRD, SEM-EDX, and XPS techniques. The kinetics studies revealed that adsorption on external surfaces was the rate-limiting step for the removal of TT on both WC and CC biochar, while intraparticle diffusion was the rate-limiting step for the adsorption of EB. Maximal experimental adsorption capacities Qmaxexp of TT reached 182 ± 5 (WC) and 45 ± 2 mg g−1 (CC), and EB 12.7 ± 0.9 (WC) and 1.5 ± 0.4 mg g−1 (CC), respectively, thereby indicating a higher affinity of biochars for TT. The adsorption mechanism was found to be associated with π-π interaction, hydrogen bonding, and pore filling. Application of the innovative dynamic approach based on fast-field-cycling NMR relaxometry indicates that variations in the retention of water-soluble dyes could be explained by distinct water dynamics in the porous structures of WC and CC. The obtained results suggest that studied biochars will be more effective in adsorbing of cationic than anionic dyes from contaminated effluents.
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Ullah R, Ahmad W, Yaseen M, Khan M, Iqbal Khattak M, Mohamed Jan B, Ikram R, Kenanakis G. Fabrication of MNPs/rGO/PMMA Composite for the Removal of Hazardous Cr(VI) from Tannery Wastewater through Batch and Continuous Mode Adsorption. MATERIALS (BASEL, SWITZERLAND) 2021; 14:6923. [PMID: 34832323 PMCID: PMC8620348 DOI: 10.3390/ma14226923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/05/2021] [Accepted: 11/11/2021] [Indexed: 11/21/2022]
Abstract
Herein, we report the synthesis of magnetic nanoparticle (MNP)-reduced graphene oxide (rGO) and polymethylmethacrylate (PMMA) composite (MNPs/rGO/PMMA) as adsorbent via an in situ fabrication strategy and, in turn, the application for adsorptive removal and recovery of Cr(VI) from tannery wastewater. The composite material was characterized via XRD, FTIR and SEM analyses. Under batch mode experiments, the composite achieved maximum adsorption of the Cr(VI) ion (99.53 ± 1.4%, i.e., 1636.49 mg of Cr(VI)/150 mg of adsorbent) at pH 2, adsorbent dose of 150 mg/10 mL of solution and 30 min of contact time. The adsorption process was endothermic, feasible and spontaneous and followed a pseudo-2nd order kinetic model. The Cr ions were completely desorbed (99.32 ± 2%) from the composite using 30 mL of NaOH solution (2M); hence, the composite exhibited high efficiency for five consecutive cycles without prominent loss in activity. The adsorbent was washed with distilled water and diluted HCl (0.1M), then dried under vacuum at 60 °C for reuse. The XRD analysis confirmed the synthesis and incorporation of magnetic iron oxide at 2θ of 30.38°, 35.5°, 43.22° and 57.36°, respectively, and graphene oxide (GO) at 25.5°. The FTIR analysids revealed that the composite retained the configurations of the individual components, whereas the SEM analysis indicated that the magnetic Fe3O4-NPs (MNPs) dispersed on the surface of the PMMA/rGO sheets. To anticipate the behavior of breakthrough, the Thomas and Yoon-Nelson models were applied to fixed-bed column data, which indicated good agreement with the experimental data. This study evaluates useful reference information for designing a cost-effective and easy-to-use adsorbent for the efficient removal of Cr(VI) from wastewater. Therefore, it can be envisioned as an alternative approach for a variety of unexplored industrial-level operations.
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Affiliation(s)
- Rahman Ullah
- Institute of Chemical Sciences, University of Peshawar, Peshawar 25120, Khyber Pakhtunkhwa, Pakistan; (R.U.); (M.Y.)
| | - Waqas Ahmad
- Institute of Chemical Sciences, University of Peshawar, Peshawar 25120, Khyber Pakhtunkhwa, Pakistan; (R.U.); (M.Y.)
| | - Muhammad Yaseen
- Institute of Chemical Sciences, University of Peshawar, Peshawar 25120, Khyber Pakhtunkhwa, Pakistan; (R.U.); (M.Y.)
| | - Mansoor Khan
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Khyber Pakhtunkhwa, Pakistan;
| | - Mehmood Iqbal Khattak
- Material Science Center (PCSIR) Laboratories Complex, Peshawar 25120, Khyber Pakhtunkhwa, Pakistan;
| | - Badrul Mohamed Jan
- Department of Chemical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Rabia Ikram
- Department of Chemical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - George Kenanakis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, N. Plastira 100, Vasilika Vouton, GR-70013 Heraklion, Crete, Greece;
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Irawan C, Putra MD, Wijayanti H, Juwita R, Meliana Y, Nata IF. The Amine Functionalized Sugarcane Bagasse Biocomposites as Magnetically Adsorbent for Contaminants Removal in Aqueous Solution. Molecules 2021; 26:molecules26195867. [PMID: 34641411 PMCID: PMC8510407 DOI: 10.3390/molecules26195867] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/20/2021] [Accepted: 09/24/2021] [Indexed: 11/16/2022] Open
Abstract
The method of solvothermal by one-step operation has been performed to synthesize of magnetic amine-functionalized sugarcane bagasse biocomposites (SB-MH). The obtained SB-MH contains 62.34% of Fe, 17.8 mmol/g of amine, and a magnetic property of 19.46 emu/g. The biocomposite surface area increased significantly from 1.617 to 25.789 m2/g after amine functionalization. The optimum condition of SB-MH used for Pb(II) ion removal was achieved at pH 5 for 360 min with adsorption capacity of 203.522 mg/g. The pseudo 2nd order was well-fitted to the model of Pb(II) ion adsorption. Meanwhile, other contaminant parameters number of Chemical Oxygen Demand (COD), Total Suspended Solid (TSS), and dye in wastewater were also remarkably reduced by about 74.4%, 88.0%, and 96.7%, respectively. The reusability of SB-MH with 4th repetitions showed only a slight decrease in performance of 5%. Therefore, the proposed magnetic amine-functionalized sugarcane bagasse biocomposites lead to a very potential adsorbent implemented in high scale due to high surface area, easy separation, stable materials and capability to adsorb contaminants from aqueous solution.
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Affiliation(s)
- Chairul Irawan
- Department of Chemical Engineering, Lambung Mangkurat University, Banjarbaru 70714, Indonesia; (C.I.); (M.D.P.); (H.W.); (R.J.)
| | - Meilana Dharma Putra
- Department of Chemical Engineering, Lambung Mangkurat University, Banjarbaru 70714, Indonesia; (C.I.); (M.D.P.); (H.W.); (R.J.)
| | - Hesti Wijayanti
- Department of Chemical Engineering, Lambung Mangkurat University, Banjarbaru 70714, Indonesia; (C.I.); (M.D.P.); (H.W.); (R.J.)
| | - Rinna Juwita
- Department of Chemical Engineering, Lambung Mangkurat University, Banjarbaru 70714, Indonesia; (C.I.); (M.D.P.); (H.W.); (R.J.)
| | - Yenny Meliana
- Indonesian Institute of Science, Research Centre Chemistry, Tangerang 15314, Indonesia;
| | - Iryanti Fatyasari Nata
- Department of Chemical Engineering, Lambung Mangkurat University, Banjarbaru 70714, Indonesia; (C.I.); (M.D.P.); (H.W.); (R.J.)
- Wetland-based Materials Research Centre, Research Institute and Community Service, Lambung Mangkurat University, Banjarbaru 70714, Indonesia
- Correspondence:
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Zhang X, Guo Y, Li W, Zhang J, Wu H, Mao N, Zhang H. Magnetically Recyclable Wool Keratin Modified Magnetite Powders for Efficient Removal of Cu 2+ Ions from Aqueous Solutions. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1068. [PMID: 33919408 PMCID: PMC8143369 DOI: 10.3390/nano11051068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/15/2021] [Accepted: 04/16/2021] [Indexed: 11/16/2022]
Abstract
The treatment of wastewater containing heavy metals and the utilization of wool waste are very important for the sustainable development of textile mills. In this study, the wool keratin modified magnetite (Fe3O4) powders were fabricated by using wool waste via a co-precipitation technique for removal of Cu2+ ions from aqueous solutions. The morphology, chemical compositions, crystal structure, microstructure, magnetism properties, organic content, and specific surface area of as-fabricated powders were systematically characterized by various techniques including field emission scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometer (VSM), thermogravimetric (TG) analysis, and Brunauer-Emmett-Teller (BET) surface area analyzer. The effects of experimental parameters such as the volume of wool keratin hydrolysate, the dosage of powder, the initial Cu2+ ion concentration, and the pH value of solution on the adsorption capacity of Cu2+ ions by the powders were examined. The experimental results indicated that the Cu2+ ion adsorption performance of the wool keratin modified Fe3O4 powders exhibited much better than that of the chitosan modified ones with a maximum Cu2+ adsorption capacity of 27.4 mg/g under favorable conditions (0.05 g powders; 50 mL of 40 mg/L CuSO4; pH 5; temperature 293 K). The high adsorption capacity towards Cu2+ ions on the wool keratin modified Fe3O4 powders was primarily because of the strong surface complexation of -COOH and -NH2 functional groups of wool keratins with Cu2+ ions. The Cu2+ ion adsorption process on the wool keratin modified Fe3O4 powders followed the Temkin adsorption isotherm model and the intraparticle diffusion and pseudo-second-order adsorption kinetic models. After Cu2+ ion removal, the wool keratin modified Fe3O4 powders were easily separated using a magnet from aqueous solution and efficiently regenerated using 0.5 M ethylene diamine tetraacetic acid (EDTA)-H2SO4 eluting. The wool keratin modified Fe3O4 powders possessed good regenerative performance after five cycles. This study provided a feasible way to utilize waste wool textiles for preparing magnetic biomass-based adsorbents for the removal of heavy metal ions from aqueous solutions.
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Affiliation(s)
- Xinyue Zhang
- School of Environmental and Chemical Engineering, Xi′an Polytechnic University, Xi′an, Shaanxi 710048, China; (X.Z.); (Y.G.)
- Research Centre for Functional Textile Materials, School of Textile Science and Engineering, Xi’an Polytechnic University, Xi’an, Shaanxi 710048, China; (W.L.); (J.Z.)
| | - Yani Guo
- School of Environmental and Chemical Engineering, Xi′an Polytechnic University, Xi′an, Shaanxi 710048, China; (X.Z.); (Y.G.)
| | - Wenjun Li
- Research Centre for Functional Textile Materials, School of Textile Science and Engineering, Xi’an Polytechnic University, Xi’an, Shaanxi 710048, China; (W.L.); (J.Z.)
- Key Laboratory of Functional Textile Material and Product, Xi’an Polytechnic University, Ministry of Education, Xi’an, Shaanxi 710048, China;
| | - Jinyuan Zhang
- Research Centre for Functional Textile Materials, School of Textile Science and Engineering, Xi’an Polytechnic University, Xi’an, Shaanxi 710048, China; (W.L.); (J.Z.)
- Key Laboratory of Functional Textile Material and Product, Xi’an Polytechnic University, Ministry of Education, Xi’an, Shaanxi 710048, China;
| | - Hailiang Wu
- Key Laboratory of Functional Textile Material and Product, Xi’an Polytechnic University, Ministry of Education, Xi’an, Shaanxi 710048, China;
| | - Ningtao Mao
- Performance Textiles and Clothing Research Group, School of Design, University of Leeds, Leeds LS2 9JT, UK;
| | - Hui Zhang
- Research Centre for Functional Textile Materials, School of Textile Science and Engineering, Xi’an Polytechnic University, Xi’an, Shaanxi 710048, China; (W.L.); (J.Z.)
- Key Laboratory of Functional Textile Material and Product, Xi’an Polytechnic University, Ministry of Education, Xi’an, Shaanxi 710048, China;
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Wang B, Liu Q, Fan Z. A Mini Review: Application Progress of Magnetic Graphene Three-Dimensional Materials for Water Purification. Front Chem 2020; 8:595643. [PMID: 33330385 PMCID: PMC7716700 DOI: 10.3389/fchem.2020.595643] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 10/15/2020] [Indexed: 12/11/2022] Open
Abstract
Marine oil pollution, colored counterattacks, and heavy metal ions in the water will cause serious environmental problems and threaten human health. The three-dimensional material prepared by graphene, as a new nanomaterial, has a large specific surface area and surface chemical activity. Various impurities in the water can be absorbed, which is very suitable as a water purification material. Depositing Fe3O4 and other magnetic materials on graphene three-dimensional materials can not only increase recyclability but increase hydrophobicity. Therefore, magnetic graphene three-dimensional materials have a high potential for use in water purification. This article reviews the research progress and adsorption mechanism of magnetic graphene materials for water purification. Finally, the future research prospects of magnetic graphene materials have prospected.
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Affiliation(s)
- Biao Wang
- Petroleum Engineering College, Northeast Petroleum University, Daqing, China
| | - Qingwang Liu
- Petroleum Engineering College, Northeast Petroleum University, Daqing, China
| | - Zhenzhong Fan
- Petroleum Engineering College, Northeast Petroleum University, Daqing, China
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Biosorption of Co2+ Ions from Aqueous Solution by K2HPO4-Pretreated Duckweed Lemna gibba. Processes (Basel) 2020. [DOI: 10.3390/pr8121532] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The wastewater of the many industries that use divalent cobalt (Co2+)-containing compounds has elevated levels of this metal. Thus, novel technology is needed to efficiently remove Co2+ ions from aqueous solutions. Biosorption is a low-cost technique capable of removing heavy metals from contaminated water. This study aims to evaluate the performance of KH2PO4-pretreated Lemna gibba (PLEM) as a biosorbent of Co2+ in aqueous solutions tested under different conditions of pH, particle size, and initial Co2+ concentration. Kinetic, equilibrium, and thermodynamic studies were conducted. The capacity of biosorption increased with a greater initial Co2+ concentration and was optimal at pH 7.0 and with small-sized biosorbent particles (0.3–0.8 mm). The pseudo-second-order sorption model best describes the experimental data on Co2+ biosorption kinetics. The Sips and Redlich-Peterson isotherm models best predict the biosorption capacity at equilibrium. According to the thermodynamic study, biosorption of Co2+ was endothermic and spontaneous. The effect of pH on the biosorption/desorption of Co2+ suggests that electrostatic attraction is the main biosorption mechanism. SEM-EDX verified the presence of Co2+ on the surface of the pretreated-saturated biosorbent and the absence of the metal after desorption.
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