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Nagaraja B, Janga JK, Hossain S, Verma G, Palomino AM, Reddy KR. Novel chitosan-based barrier materials for environmental containment: Synthesis, characterization, and contaminant removal capacities and mechanisms. CHEMOSPHERE 2024; 359:142285. [PMID: 38723684 DOI: 10.1016/j.chemosphere.2024.142285] [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: 03/23/2024] [Revised: 05/05/2024] [Accepted: 05/06/2024] [Indexed: 06/05/2024]
Abstract
This study critically appraises employing chitosan as a composite with bentonite, biochar, or both materials as an alternative to conventional barrier materials. A comprehensive literature review was conducted to identify the studies reporting chitosan-bentonite composite (CBC), chitosan amended biochar (CAB), and chitosan-bentonite-biochar composite (CBBC) for effective removal of various contaminants. The study aims to review the synthesis of these composites, identify fundamental properties affecting their adsorption capacities, and examine how these properties affect or enhance the removal abilities of other materials within the composite. Notably, CBC composites have the advantage of adsorbing both cationic and anionic species, such as heavy metals and dyes, due to the cationic nature of chitosan and the anionic nature of montmorillonite, along with the increased accessible surface area due to the clay. CAB composites have the unique advantage of being low-cost sorbents with high specific surface area, affinity for a wide range of contaminants owing to the high surface area and microporosity of biochar, and abundant available functional groups from the chitosan. Limited studies have reported the utilization of CBBC composites to remove various contaminants. These composites can be prepared by combining the steps employed in preparing CBC and CAB composites. They can benefit from the favorable adsorption properties of all three materials while also satisfying the mechanical requirements of a barrier material. This study serves as a knowledge base for future research to develop novel composite barrier materials by incorporating chitosan and biochar as amendments to bentonite.
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Affiliation(s)
- Banuchandra Nagaraja
- Department of Civil, Materials, and Environmental Engineering, University of Illinois Chicago, 842 West Taylor Street, Chicago, IL, 60607, USA.
| | - Jagadeesh Kumar Janga
- Department of Civil, Materials, and Environmental Engineering, University of Illinois Chicago, 842 West Taylor Street, Chicago, IL, 60607, USA.
| | - Sadam Hossain
- Department of Civil and Environmental Engineering, University of Tennessee Knoxville, 423 John D. Tickle Building, Knoxville, TN, 37996, USA.
| | - Gaurav Verma
- Department of Civil, Materials, and Environmental Engineering, University of Illinois Chicago, 842 West Taylor Street, Chicago, IL, 60607, USA.
| | - Angelica M Palomino
- Department of Civil and Environmental Engineering, University of Tennessee Knoxville, 423 John D. Tickle Building, Knoxville, TN, 37996, USA.
| | - Krishna R Reddy
- Department of Civil, Materials, and Environmental Engineering, University of Illinois Chicago, 842 West Taylor Street, Chicago, IL, 60607, USA.
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2
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Ahmad M, Naik MUD, Tariq MR, Khan I, Zhang L, Zhang B. Advances in natural polysaccharides for gold recovery from e-waste: Recent developments in preparation with structural features. Int J Biol Macromol 2024; 261:129688. [PMID: 38280695 DOI: 10.1016/j.ijbiomac.2024.129688] [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: 10/31/2023] [Revised: 01/01/2024] [Accepted: 01/21/2024] [Indexed: 01/29/2024]
Abstract
The increasing demand for gold because of its high market price and its wide use in the electronic industry has attracted interest in gold recovery from electronic waste (e-waste). Gold is being dumped as solid e-waste which contains gold concentrations ten times higher than gold ores. Adsorption is a widely used approach for extracting gold from e-waste due to its simplicity, low cost, high efficiency, and reusability of adsorbent material. Natural polysaccharides received increased attention due to their natural abundance, multi-functionality, biodegradability, and nontoxicity. In this review, a brief history, and advancements in this technology were evaluated with recent developments in the preparation and mechanism advancements of natural polysaccharides for efficient gold recovery. Moreover, we have discussed some bifunctional modified polysaccharides with detailed gold adsorption mechanisms. The modified adsorbent materials developed from polysaccharides coupled with inorganic/organic functional groups would demonstrate an efficient technology for the development of new bio-based materials for efficient gold recovery from e-waste. Also, future views are recommended for highlighting the direction to achieve fast and effective gold recovery from e-waste in a friendly and sustainable manner.
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Affiliation(s)
- Mudasir Ahmad
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xian 710072, China; Xian Key Laboratory of Functional Organic Porous Materials, Northwestern Polytechnical University, 710129, China
| | - Mehraj Ud-Din Naik
- Department of Chemical Engineering, College of Engineering, Jazan University, Jazan 45142, Saudi Arabia
| | - Muhammad Rizwan Tariq
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xian 710072, China
| | - Idrees Khan
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xian 710072, China
| | - Lei Zhang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xian 710072, China
| | - Baoliang Zhang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xian 710072, China; Shaanxi Engineering and Research Center for Functional Polymers on Adsorption and Separation, Sunresins New Materials Co. Ltd., Xi'an 710072, China.
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Amamou O, Denis JP, Heinen É, Boubaker T, Cardinal S. A New and Rapid HPLC Method to Determine the Degree of Deacetylation of Glutaraldehyde-Cross-Linked Chitosan. Molecules 2023; 28:7294. [PMID: 37959714 PMCID: PMC10647662 DOI: 10.3390/molecules28217294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 10/18/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
Chitosan is a linear biopolymer composed of D-glucosamine and N-acetylglucosamine units. The percentage of D-glucosamine in the polymeric chain can vary from one sample to another and is expressed as the degree of deacetylation (DDA). Since this parameter has an impact on many properties, its determination is often critical, and potentiometric titration is a common analytical technique to measure the DDA. Cross-linking with glutaraldehyde is one of the most explored modifications of chitosan; however, the determination of the DDA for the resulting reticulated chitosan resins can be challenging. In this paper, we report a new, rapid, and efficient method to determine the DDA of glutaraldehyde-cross-linked chitosan resins via HPLC. This method relies on the use of 2,4-dinitrophenylhydrazine (DNPH) as a derivatizing agent to measure the level of reticulation of the polymer (LR) after the reticulation step. In this study, we prepare three calibration curves (with an R2 value over 0.92) for three series of reticulated polymers covering a large range of reticulation levels to demonstrate that a correlation can be established between the LR established via HPLC and the DDA obtained via titration. The polymers are derived from three different chitosan starting materials. These standard calibration curves are now used on a routine basis in our lab, and the HPLC method has allowed us to change our DDA analysis time from 20 h to 5 min.
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Affiliation(s)
- Ons Amamou
- Département de Biologie, Chimie et Géographie, Université du Québec à Rimouski, Rimouski, QC G5L 3A1, Canada
- Laboratoire de Chimie Hétérocyclique, Produits Naturels et Réactivité (LR11S39), Faculté des Sciences, Université de Monastir, Monastir 5000, Tunisia
| | - Jean-Philippe Denis
- Département de Biologie, Chimie et Géographie, Université du Québec à Rimouski, Rimouski, QC G5L 3A1, Canada
| | - Élise Heinen
- Département de Biologie, Chimie et Géographie, Université du Québec à Rimouski, Rimouski, QC G5L 3A1, Canada
| | - Taoufik Boubaker
- Laboratoire de Chimie Hétérocyclique, Produits Naturels et Réactivité (LR11S39), Faculté des Sciences, Université de Monastir, Monastir 5000, Tunisia
| | - Sébastien Cardinal
- Département de Biologie, Chimie et Géographie, Université du Québec à Rimouski, Rimouski, QC G5L 3A1, Canada
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Jiang Q, Guo W, Liu ZY, Jin Z, Fan JB, Zhao S. Antibiotic Zwitterionic Nanogel Membrane: from Molecular Dynamics Simulation to Structure Manipulation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:18237-18246. [PMID: 33843205 DOI: 10.1021/acsami.1c00378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Membrane separation has been considered as one of the most revolutionary technologies for the removal of oils, dyes, or other pollutants from wastewater. However, most membranes still face great challenges in water permeability, antifouling property, and even antibiotic ability. Possessing a pathogen-repellent surface is of great significance as it can enable membranes to minimize the presence of active viral pathogens. Herein, we demonstrate a distinct design with a molecular dynamics simulation-guided experiment for the surface domination of antibiotic zwitterionic nanogel membranes. The zwitterionic nanoparticle gel (ZNG)/Cu2+/glutaraldehyde (GA) synergy system is first simulated by introducing a ZNG into a preset CuCl2 brine solution and into a GA ethanol solution, in which the nanogel is observed to initially swell and subsequently shrink with the increase of GA concentration, leading to the membrane surface structure transition. Then, the corresponding experiments are performed under strict conditions, and the results suggest the surface structure transition from nanoparticles to network nanoflowers, which are consistent with the simulated results. The obtained network structure membrane with superhydrophilic and underwater superoleophobic abilities can significantly enhance the water permeability as high as almost 40% with its original rejection rate in comparison with unoptimizable ZNG-PVDF (polyvinylidene difluoride) membranes. Moreover, the obtained membrane achieves additional excellent antibiofouling capacity with the antibiotic efficiency exceeding 99.3%, manifesting remarkable potential for disinfection applications. By comparison, the conventional antibiotic methods generally improve the membrane's antibiotic property solely but can hardly improve the other properties of the membrane. That is to say, our simulation combined with the experimental strategy significantly improved the zwitterionic membrane property in this work, which provides a new perspective on the design of high-performance functional materials.
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Affiliation(s)
- Qin Jiang
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Wei Guo
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
| | - Zi-Yu Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Zhiqiang Jin
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Jun-Bing Fan
- Cancer Research Institute, School of Basic Medical Sciences and General Surgery Center; Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Sui Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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Chang SH. Gold(III) recovery from aqueous solutions by raw and modified chitosan: A review. Carbohydr Polym 2021; 256:117423. [PMID: 33483013 DOI: 10.1016/j.carbpol.2020.117423] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 11/13/2020] [Accepted: 11/15/2020] [Indexed: 12/23/2022]
Abstract
Chitosan, a prestigious versatile biopolymer, has recently received considerable attention as a promising biosorbent for recovering gold ions, mainly Au(III), from aqueous solutions, particularly in modified forms. Confirming the assertion, this paper provides an up-to-date overview of Au(III) recovery from aqueous solutions by raw (unmodified) and modified chitosan. A particular emphasis is placed on the raw chitosan and its synthesis from chitin, characteristics of raw chitosan and their effects on metal sorption, modifications of raw chitosan for Au(III) sorption, and characterization of raw chitosan before and after modifications for Au(III) sorption. Comparisons of the sorption (conditions, percentage, capacity, selectivity, isotherms, thermodynamics, kinetics, and mechanisms), desorption (agents and percentage), and reusable properties between raw and modified chitosan in Au(III) recovery from aqueous solutions are also outlined and discussed. The major challenges and future prospects towards the large-scale applications of modified chitosan in Au(III) recovery from aqueous solutions are also addressed.
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Affiliation(s)
- Siu Hua Chang
- Faculty of Chemical Engineering, Universiti Teknologi MARA, Cawangan Pulau Pinang, 13500 Permatang Pauh, Penang, Malaysia; Faculty of Chemical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia.
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Bui TH, Lee W, Jeon SB, Kim KW, Lee Y. Enhanced Gold(III) adsorption using glutaraldehyde-crosslinked chitosan beads: Effect of crosslinking degree on adsorption selectivity, capacity, and mechanism. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116989] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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7
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He H, Huang Y, Yan M, Xie Y, Li Y. Synergistic effect of electrostatic adsorption and ion exchange for efficient removal of nitrate. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.123973] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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8
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Efficiency of Ag(0)@chitosan gel beads in catalytic reduction of nitroaromatic compounds by sodium borohydride. Int J Biol Macromol 2019; 137:576-582. [DOI: 10.1016/j.ijbiomac.2019.07.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 07/02/2019] [Accepted: 07/02/2019] [Indexed: 12/16/2022]
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Abstract
Chitosan films containing citric acid were prepared using a multi-step process called heterogeneous crosslinking. These films were neutralized first, followed by citric acid addition, and then heat treated at 150 °C/0.5 h in order to potentially induce covalent crosslinking. The viscoelastic storage modulus, E′, and tanδ were studied using dynamic mechanical analysis, and compared with neat and neutralized films to elucidate possible crosslinking with citric acid. Films were also prepared with various concentrations of a model crosslinker, glutaraldehyde, both homogeneously and heterogeneously. Based on comparisons of neutralized films with films containing citric acid, and between citric acid films either heat treated or not heat treated, it appeared that the interaction between chitosan and citric acid remained ionic without covalent bond formation. No strong evidence of a glass transition from the tanδ plots was observable, with the possible exception of heterogeneously crosslinked glutaraldehyde films at temperatures above 200 °C.
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Huang J, Zajforoushan Moghaddam S, Thormann E. Structural Investigation of a Self-Cross-Linked Chitosan/Alginate Dialdehyde Multilayered Film with in Situ QCM-D and Spectroscopic Ellipsometry. ACS OMEGA 2019; 4:2019-2029. [PMID: 31459453 PMCID: PMC6648685 DOI: 10.1021/acsomega.8b03145] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Accepted: 01/10/2019] [Indexed: 05/30/2023]
Abstract
A chitosan/alginate dialdehyde multilayered film was fabricated using the layer-by-layer assembly method. Besides electrostatic interaction that promotes alternate adsorption of the oppositely charged polyelectrolytes, the Schiff base reaction between the amine groups on chitosan and the aldehyde groups on alginate dialdehyde provides a covalently cross-linked film, which after reduction by sodium cyanoborohydride is stable under both acidic and alkaline conditions. Moreover, the cross-linked film is responsive to changes in pH and addition of multivalent salts. The structural properties of the multilayered film such as thickness, refractive index, and water content were examined using simultaneous quartz crystal microbalance with dissipation monitoring and spectroscopic ellipsometry.
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Affiliation(s)
- Junhao Huang
- Department of Chemistry, Technical University of Denmark, Kemitorvet 206, 2800 Kgs. Lyngby, Denmark
| | | | - Esben Thormann
- Department of Chemistry, Technical University of Denmark, Kemitorvet 206, 2800 Kgs. Lyngby, Denmark
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11
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Mohandas A, Deepthi S, Biswas R, Jayakumar R. Chitosan based metallic nanocomposite scaffolds as antimicrobial wound dressings. Bioact Mater 2018; 3:267-277. [PMID: 29744466 PMCID: PMC5935789 DOI: 10.1016/j.bioactmat.2017.11.003] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 11/17/2017] [Accepted: 11/17/2017] [Indexed: 12/20/2022] Open
Abstract
Chitosan based nanocomposite scaffolds have attracted wider applications in medicine, in the area of drug delivery, tissue engineering and wound healing. Chitosan matrix incorporated with nanometallic components has immense potential in the area of wound dressings due to its antimicrobial properties. This review focuses on the different combinations of Chitosan metal nanocomposites such as Chitosan/nAg, Chitosan/nAu, Chitosan/nCu, Chitosan/nZnO and Chitosan/nTiO2 towards enhancement of healing or infection control with special reference to the antimicrobial mechanism of action and toxicity.
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Affiliation(s)
| | | | | | - R. Jayakumar
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi, 682 041, India
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12
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Preparation and characterization of poly(maleic acid)-grafted cross-linked chitosan microspheres for Cd(II) adsorption. Carbohydr Polym 2017; 172:28-39. [DOI: 10.1016/j.carbpol.2017.05.039] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 05/10/2017] [Accepted: 05/12/2017] [Indexed: 11/24/2022]
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13
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Lu Y, He J, Wu L, Luo G. Relationship between breakthrough curve and adsorption isotherm of Ca(II) imprinted chitosan microspheres for metal adsorption. Chin J Chem Eng 2016. [DOI: 10.1016/j.cjche.2015.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Liu T, Sun Y, Wang ZL. Stabilized chitosan/Fe(0)-nanoparticle beads to remove heavy metals from polluted sediments. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 73:1090-1097. [PMID: 26942531 DOI: 10.2166/wst.2015.556] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Sediment contamination by heavy metals has become a widespread problem that can affect the normal behaviors of rivers and lakes. After chitosan/Fe(0)-nanoparticles (CS-NZVI) beads were cross-linked with glutaraldehyde (GLA), their mechanical strength, stability and separation efficiency from the sediment were obviously improved. Moreover, the average aperture size of GLA-CS-NZVI beads was 20.6 μm and NZVI particles were nearly spherical in shape with a mean diameter of 40.2 nm. In addition, the pH showed an insignificant effect on the removal rates from the sediment. Due to the dissolution of metals species into aqueous solutions as an introduction of the salt, the removal rates of all heavy metals from the sediment were increased with an increase of the salinity. The competitive adsorption of heavy metals between the sediment particles and GLA-CS-NZVI beads became stronger as the sediment particles became smaller, leading to decreased removal rates. Therefore, the removal efficiency could be enhanced by optimizing experimental conditions and choosing appropriate materials for the target contaminants.
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Affiliation(s)
- T Liu
- Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, China E-mail:
| | - Y Sun
- Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, China E-mail:
| | - Z L Wang
- Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, China E-mail: ; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
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Budnyak TM, Pylypchuk IV, Tertykh VA, Yanovska ES, Kolodynska D. Synthesis and adsorption properties of chitosan-silica nanocomposite prepared by sol-gel method. NANOSCALE RESEARCH LETTERS 2015; 10:87. [PMID: 25852383 PMCID: PMC4385279 DOI: 10.1186/s11671-014-0722-1] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 12/29/2014] [Indexed: 05/25/2023]
Abstract
A hybrid nanocomposite material has been obtained by in situ formation of an inorganic network in the presence of a preformed organic polymer. Chitosan biopolymer and tetraethoxysilane (TEOS), which is the most common silica precursor, were used for the sol-gel reaction. The obtained composite chitosan-silica material has been characterized by physicochemical methods such as differential thermal analyses (DTA); carbon, hydrogen, and nitrogen (CHN) elemental analysis; nitrogen adsorption/desorption isotherms, scanning electron microscopy (SEM); and Fourier transform infrared (FTIR) spectroscopy to determine possible interactions between silica and chitosan macromolecules. Adsorption of microquantities of V(V), Mo(VI), and Cr(VI) oxoanions from the aqueous solutions by the obtained composite has been studied in comparison with the chitosan beads, previously crosslinked with glutaraldehyde. The adsorption capacity and kinetic sorption characteristics of the composite material were estimated.
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Affiliation(s)
- Tetyana M Budnyak
- />Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine, 17 General Naumov Str., 03164 Kyiv, Ukraine
| | - Ievgen V Pylypchuk
- />Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine, 17 General Naumov Str., 03164 Kyiv, Ukraine
| | - Valentin A Tertykh
- />Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine, 17 General Naumov Str., 03164 Kyiv, Ukraine
| | - Elina S Yanovska
- />Faculty of Chemistry, Taras Shevchenko National University of Kyiv, 64 Volodymyrska Str., 01033 Kyiv, Ukraine
| | - Dorota Kolodynska
- />Faculty of Chemistry, Maria Curie Skłodowska University, M. Curie Skłodowska Sq. 2, 20-031 Lublin, Poland
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Nguyen AH, McKinney J, Miller T, Bongiorno T, McDevitt TC. Gelatin methacrylate microspheres for controlled growth factor release. Acta Biomater 2015; 13:101-10. [PMID: 25463489 DOI: 10.1016/j.actbio.2014.11.028] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 10/20/2014] [Accepted: 11/13/2014] [Indexed: 10/24/2022]
Abstract
Gelatin has been commonly used as a delivery vehicle for various biomolecules for tissue engineering and regenerative medicine applications due to its simple fabrication methods, inherent electrostatic binding properties, and proteolytic degradability. Compared to traditional chemical cross-linking methods, such as the use of glutaraldehyde (GA), methacrylate modification of gelatin offers an alternative method to better control the extent of hydrogel cross-linking. Here we examined the physical properties and growth factor delivery of gelatin methacrylate (GMA) microparticles (MPs) formulated with a wide range of different cross-linking densities (15-90%). Less methacrylated MPs had decreased elastic moduli and larger mesh sizes compared to GA MPs, with increasing methacrylation correlating to greater moduli and smaller mesh sizes. As expected, an inverse correlation between microparticle cross-linking density and degradation was observed, with the lowest cross-linked GMA MPs degrading at the fastest rate, comparable to GA MPs. Interestingly, GMA MPs at lower cross-linking densities could be loaded with up to a 10-fold higher relative amount of growth factor than conventional GA cross-linked MPs, despite the GA MPs having an order of magnitude greater gelatin content. Moreover, a reduced GMA cross-linking density resulted in more complete release of bone morphogenic protein 4 and basic fibroblast growth factor and accelerated release rate with collagenase treatment. These studies demonstrate that GMA MPs provide a more flexible platform for growth factor delivery by enhancing the relative binding capacity and permitting proteolytic degradation tunability, thereby offering a more potent controlled release system for growth factor delivery.
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He J, Lu Y, Wu L, Luo G. Continuous Removal of Lead from Aqueous Solutions by Ca(II) Imprinted Chitosan Microspheres Packed Column. SEP SCI TECHNOL 2014. [DOI: 10.1080/01496395.2014.965261] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Zuo X. Preparation and Evaluation of Novel Thiourea/Chitosan Composite Beads for Copper(II) Removal in Aqueous Solutions. Ind Eng Chem Res 2014. [DOI: 10.1021/ie4036059] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- XiaoJun Zuo
- Department of Civil and Environmental
Engineering, National University of Singapore, 117576, Singapore
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20
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Ghosh P, Rameshbabu AP, Dogra N, Dhara S. 2,5-Dimethoxy 2,5-dihydrofuran crosslinked chitosan fibers enhance bone regeneration in rabbit femur defects. RSC Adv 2014. [DOI: 10.1039/c4ra01971g] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Chitosan fibers were fabricated via pH induced neutralization and precipitation in a 5 w/v% NaOH bath.
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Affiliation(s)
- Paulomi Ghosh
- Biomaterials and Tissue Engineering Laboratory
- School of Medical Science and Technology
- Indian Institute of Technology Kharagpur
- Kharagpur-721302, India
| | - Arun Prabhu Rameshbabu
- Biomaterials and Tissue Engineering Laboratory
- School of Medical Science and Technology
- Indian Institute of Technology Kharagpur
- Kharagpur-721302, India
| | - Nantu Dogra
- Biomaterials and Tissue Engineering Laboratory
- School of Medical Science and Technology
- Indian Institute of Technology Kharagpur
- Kharagpur-721302, India
| | - Santanu Dhara
- Biomaterials and Tissue Engineering Laboratory
- School of Medical Science and Technology
- Indian Institute of Technology Kharagpur
- Kharagpur-721302, India
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Zhang Y, Li H, Niu LY, Yang QZ, Guan YF, Feng L. An SPE-assisted BODIPY fluorometric paper sensor for the highly selective and sensitive determination of Cd2+ in complex sample: rice. Analyst 2014; 139:3146-53. [DOI: 10.1039/c4an00198b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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22
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Wan Ngah WS, Ab Ghani S, Hoon LL. Comparative Adsorption of Lead(II) on Flake and Bead-Types of Chitosan. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200200096] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Chen JH, Hsu KC, Chang YM. Surface Modification of Hydrophobic Resin with Tricaprylmethylammonium Chloride for the Removal of Trace Hexavalent Chromium. Ind Eng Chem Res 2013. [DOI: 10.1021/ie401233r] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jyh-Herng Chen
- Department
of Materials and Mineral Resources Engineering, ‡College of Engineering, and §Department of
Environmental Engineering, National Taipei University of Technology, 1, Section 3, Chung-Hsiao
East Road, Taipei, 10608, Taiwan, R.O.C
| | - Kai-Chung Hsu
- Department
of Materials and Mineral Resources Engineering, ‡College of Engineering, and §Department of
Environmental Engineering, National Taipei University of Technology, 1, Section 3, Chung-Hsiao
East Road, Taipei, 10608, Taiwan, R.O.C
| | - Yu-Min Chang
- Department
of Materials and Mineral Resources Engineering, ‡College of Engineering, and §Department of
Environmental Engineering, National Taipei University of Technology, 1, Section 3, Chung-Hsiao
East Road, Taipei, 10608, Taiwan, R.O.C
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24
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Yu Z, Zhang X, Huang Y. Magnetic Chitosan–Iron(III) Hydrogel as a Fast and Reusable Adsorbent for Chromium(VI) Removal. Ind Eng Chem Res 2013. [DOI: 10.1021/ie400781n] [Citation(s) in RCA: 127] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zihan Yu
- State Key Laboratory Breeding Base of Eco-Environments
and Bio-Resources of the Three Gorges Reservoir Region, College of
Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Xiaodan Zhang
- State Key Laboratory Breeding Base of Eco-Environments
and Bio-Resources of the Three Gorges Reservoir Region, College of
Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Yuming Huang
- State Key Laboratory Breeding Base of Eco-Environments
and Bio-Resources of the Three Gorges Reservoir Region, College of
Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
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Poly(methacrylic acid)-grafted chitosan microspheres via surface-initiated ATRP for enhanced removal of Cd(II) ions from aqueous solution. J Colloid Interface Sci 2013; 405:171-82. [PMID: 23755995 DOI: 10.1016/j.jcis.2013.05.007] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 04/13/2013] [Accepted: 05/02/2013] [Indexed: 11/23/2022]
Abstract
Cross-linked chitosan (CCS) microspheres tethered with pH-sensitive poly(methacrylic acid) (PMAA) brushes were developed for the efficient removal of Cd(II) ions from aqueous solutions. Functional PMAA brushes containing dense and active carboxyl groups (COOH) were grafted onto the CCS microsphere surface via surface-initiated atom transfer radical polymerization (ATRP). Batch adsorption results showed that solution pH values had a major impact on cadmium adsorption by the PMAA-grafted CCS microspheres with the optimal removal observed above pH 5. The CCS-g-PMAA microsphere was found to achieve the adsorption equilibrium of Cd(II) within 1 h, much faster than about 7 h on the CCS microsphere. At pH 5 and with an initial concentration 0.089-2.49 mmol dm(-3), the maximum adsorption capacity of Cd(II), derived from the Langmuir fitting on the PMAA-grafted microspheres was around 1.3 mmol g(-1). Desorption and adsorption cycle experimental results revealed that the PMAA-grafted CCS microspheres loaded with Cd(II) can be effectively regenerated in a dilute HNO3 solution, and the adsorption capacity remained almost unchanged upon five cycle reuse.
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26
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Chen Y, Hu J, Wang J. Kinetics and thermodynamics of Cu(II) biosorption on to a novel magnetic chitosan composite bead. ENVIRONMENTAL TECHNOLOGY 2012; 33:2345-2351. [PMID: 23393976 DOI: 10.1080/09593330.2012.668940] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Novel chitosan/Fe3O4 composite beads were prepared and used for the removal of Cu(II) ions from aqueous solution. The effect of initial pH, metal ion concentration and temperature on the sorption capacity of the composite was investigated. The kinetics and isotherms of Cu(II) sorption were analysed by the intra-particle diffusion model and the Langmuir, Freundlich and Slips models, respectively. The results showed that diffusion was the rate-limiting step during the whole sorption process. The maximum sorption capacity of the composite chitosan was 121.9 mg/g beads (192.6 mg/g chitosan) at pH 5.0, and the sorption capacity increased with increasing temperature, indicating that the sorption process was endothermic. Thermodynamic parameters such as Gibbs free energy change (deltaG0), enthalpy change (deltaH0) and entropy change (deltaS0) were also determined. Desorption of the metal ions from the composite chitosan beads was achieved by using 0.05 M EDTA.
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Affiliation(s)
- Yuwei Chen
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, P.R. China
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27
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Jain CK, Singh RD. Technological options for the removal of arsenic with special reference to South East Asia. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2012; 107:1-18. [PMID: 22579769 DOI: 10.1016/j.jenvman.2012.04.016] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 03/22/2012] [Accepted: 04/09/2012] [Indexed: 05/31/2023]
Abstract
Arsenic contamination in ground water, used for drinking purpose, has been envisaged as a problem of global concern. However, arsenic contamination of ground water in parts of South East Asia is assuming greater proportions and posing a serious threat to the health of millions of people. A variety of treatment technologies based on oxidation, co-precipitation, adsorption, ion exchange and membrane process are available for the removal of arsenic from ground water. However, question remains regarding the efficiency and applicability/appropriateness of the technologies, particularly because of low influent arsenic concentration and differences in source water composition. Some of these methods are quite simple, but the disadvantage associated with them is that they produce large amounts of toxic sludge, which needs further treatment before disposal into the environment. Besides, the system must be economically viable and socially acceptable. In this paper an attempt has been made to review and update the recent advances made in the technological development in arsenic removal technologies to explore the potential of those advances to address the problem of arsenic contamination in South East Asia.
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Affiliation(s)
- C K Jain
- NIH-Centre for Flood Management Studies, G.S. Road, Sapta Sahid Path, Mathura Nagar, Dispur, Guwahati, Assam 781 006, India.
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28
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Adsorption of chitosan on chalcopyrite and galena from aqueous suspensions. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.06.016] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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29
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Pan J, Hu W, Dai X, Guan W, Zou X, Wang X, Huo P, Yan Y. Molecularly imprinted polymers based on magnetic fly-ash-cenosphere composites for bisphenol A recognition. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm12099a] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Liu H, Yang F, Zheng Y, Kang J, Qu J, Chen JP. Improvement of metal adsorption onto chitosan/Sargassum sp. composite sorbent by an innovative ion-imprint technology. WATER RESEARCH 2011; 45:145-54. [PMID: 20801475 DOI: 10.1016/j.watres.2010.08.017] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2010] [Revised: 07/15/2010] [Accepted: 08/10/2010] [Indexed: 05/14/2023]
Abstract
Technology for immobilization of biomass has attracted a great interest due to the high sorption capacity of biomass for sequestration of toxic metals from industrial effluents. However, the currently practiced immobilization methods normally reduce the metal sorption capacities. In this study, an innovative ion-imprint technology was developed to overcome the drawback. Copper ion was first imprinted onto the functional groups of chitosan that formed a pellet-typed sorbent through the granulation with Sargassum sp.; the imprinted copper ion was chemically detached from the sorbent, leading to the formation of a novel copper ion-imprinted chitosan/Sargassum sp. (CICS) composite adsorbent. The copper sorption on CICS was found to be highly pH-dependent and the maximum uptake capacity was achieved at pH 4.7-5.5. The adsorption isotherm study showed the maximum sorption capacity of CICS of 1.08 mmol/g, much higher than the non-imprinted chitosan/Sargassum sp. sorbent (NICS) (0.49 mmol/g). The used sorbent was reusable after being regenerated through desorption. The FTIR and XPS studies revealed that the greater sorption of heavy metal was attributed to the large number of primary amine groups available on the surfaces of the ion-imprinted chitosan and the abundant carboxyl groups on Sargassum sp. Finally, an intraparticle surface diffusion controlled model well described the sorption history of the sorbents.
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Affiliation(s)
- Huijuan Liu
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18, Shuangqing Road, Beijing 100085, China.
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32
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Lee Y, Lee W. Degradation of trichloroethylene by Fe(II) chelated with cross-linked chitosan in a modified Fenton reaction. JOURNAL OF HAZARDOUS MATERIALS 2010; 178:187-193. [PMID: 20129729 DOI: 10.1016/j.jhazmat.2010.01.062] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2009] [Revised: 01/12/2010] [Accepted: 01/12/2010] [Indexed: 05/28/2023]
Abstract
Degradation of trichloroethylene (TCE) by a modified Fenton reaction was investigated in aqueous solution. Fenton reaction can be significantly enhanced in the presence of Fe(II) chelated by cross-linked chitosan (CS) with glutaraldehyde (GLA) at neutral pH. A remarkable oxidative degradation of TCE (1.838 h(-1)) was observed in the modified Fenton system with Fe(II)-CS/GLA (10 mM and 2 g L(-1), respectively) and H(2)O(2) (318 mM), while no significant degradation (0.005 h(-1)) was observed in the classic Fenton reaction system with Fe(II) (10 mM) and H(2)O(2) (318 mM) at pH 7 in 5 h. The kinetic rate constants for the degradation of TCE in the modified Fenton system was dependent on the initial suspension pH, Fe(II) loading, CS/GLA dosage, and concentration of H(2)O(2). We observed the formation of surface Fe(II)-CS/GLA complex using microscopic analyses and identified Fe oxidation (Fe(II) to Fe(III)) coupled with H(2)O(2) reduction on the Fe(II)-CS/GLA surfaces during the modified Fenton reaction.
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Affiliation(s)
- Youngmin Lee
- Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology, 373-1 Guseong-Dong, Yuseong-Gu, Daejon 305-701, Republic of Korea
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33
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Barreto RVG, Hissa DC, Paes FA, Grangeiro TB, Nascimento RF, Rebelo LM, Craveiro AA, Melo VMM. New approach for petroleum hydrocarbon degradation using bacterial spores entrapped in chitosan beads. BIORESOURCE TECHNOLOGY 2010; 101:2121-2125. [PMID: 19945281 DOI: 10.1016/j.biortech.2009.11.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2009] [Revised: 10/28/2009] [Accepted: 11/01/2009] [Indexed: 05/28/2023]
Abstract
Spores of Bacillus subtilis LAMI008 were entrapped in 3-mm chitosan beads and cross-linked with 0.3% glutaraldehyde for n-hexadecane biodegradation and biosurfactant recovery. When exposed to nutrients, the spores generated vegetative cells without morphological alterations as revealed by atomic force microscopy. The entrapped cells degraded almost 100% of 1% of n-hexadecane in medium supplemented with 1% glucose and produce biosurfactant within 48 h, as well as free cells. The number of viable cells inside the beads was maintained throughout the n-hexadecane degradation process and the released biosurfactant was not used as a carbon source. Entrapment of bacterial spores in chitosan beads overcomes problems with stability, storage, and long term cell viability encountered with vegetative cells. This approach can potentially be utilized for biodegradation of complex compounds by entrapping spores of different species of bacteria.
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Affiliation(s)
- R V G Barreto
- Laboratório de Ecologia Microbiana e Biotecnologia (LEMBiotech), Departamento de Biologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
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34
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Sorption of chromium(VI) using modified forms of chitosan beads. Int J Biol Macromol 2010; 47:308-15. [PMID: 20361994 DOI: 10.1016/j.ijbiomac.2010.03.010] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Revised: 02/13/2010] [Accepted: 03/23/2010] [Indexed: 11/23/2022]
Abstract
Modified forms of chitosan beads were prepared and used for chromium removal from the aqueous solution. The prepared chitosan beads viz., protonated chitosan beads (PCB), carboxylated chitosan beads (CCB) and grafted chitosan beads (GCB) possess enhanced chromium sorption capacities (SCs) of 3239, 3647 and 4057 mg/kg respectively than the raw chitosan beads (CB) which possess the SC of 1298 mg/kg with a minimum contact time of 10min. The sorption experiments were carried out in batch mode to optimize various influencing parameters viz., contact time, pH, common ions and temperature. The sorbents were characterized by FTIR and SEM with EDAX analysis. The modified chitosan beads remove chromium by means of electrostatic adsorption coupled reduction and complexation. The adsorption data was fitted with Freundlich and Langmuir isotherms. The calculated values of thermodynamic parameters indicate the nature of chromium sorption. A field trial was carried out with water collected from a nearby industrial area.
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35
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Anirudhan TS, Rijith S, Suchithra PS. Preparation and characterization of iron(III) complex of an amino-functionalized polyacrylamide-grafted lignocellulosics and its application as adsorbent for chromium(VI) removal from aqueous media. J Appl Polym Sci 2010. [DOI: 10.1002/app.31275] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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36
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Kumar M, Tripathi BP, Shahi VK. Crosslinked chitosan/polyvinyl alcohol blend beads for removal and recovery of Cd(II) from wastewater. JOURNAL OF HAZARDOUS MATERIALS 2009; 172:1041-1048. [PMID: 19699583 DOI: 10.1016/j.jhazmat.2009.07.108] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Revised: 06/12/2009] [Accepted: 07/23/2009] [Indexed: 05/28/2023]
Abstract
Crosslinked chitosan/poly(vinyl alcohol) (PVA) beads were prepared by suspension of chitosan-PVA aqueous solution in a mixture of toluene and chlorobenzene. Some quantity of the water was distilled out as an azeotrope along with toluene-chlorobenzene and the droplets were chemically crosslinked by adding glutaraldehyde. The prepared crosslinked beads were characterized by FTIR, X-ray diffraction (XRD), and scanning electron microscopy (SEM). The developed beads were used as an adsorbent for the adsorption of Cd(II) from wastewater. Effect of time, temperature, pH, adsorbent dose and adsorbate concentration on the adsorption of Cd(II) were investigated in batch process and pseudo-first and pseudo-second-order kinetic models were also evaluated. The equilibrium adsorption obeyed Langmuir and Freundlich isotherms as well as the thermodynamic parameters such as DeltaG degrees , DeltaH degrees and DeltaS degrees were calculated. From thermodynamic data, it was found that the adsorption process was endothermic and spontaneous. The maximum adsorption of Cd(II) ions was found to be 73.75% at pH 6 and indicated that developed material could be effectively utilized for the removal of Cd(II) ions from wastewater.
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Affiliation(s)
- Mahendra Kumar
- Electro-Membrane Processes Division, Central Salt & Marine Chemicals Research Institute, Council of Scientific & Industrial Research, GB Marg, Bhavnagar 364002, Gujarat, India
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37
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Ma F, Qu R, Sun C, Wang C, Ji C, Zhang Y, Yin P. Adsorption behaviors of Hg(II) on chitosan functionalized by amino-terminated hyperbranched polyamidoamine polymers. JOURNAL OF HAZARDOUS MATERIALS 2009; 172:792-801. [PMID: 19665293 DOI: 10.1016/j.jhazmat.2009.07.066] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2009] [Revised: 07/16/2009] [Accepted: 07/17/2009] [Indexed: 05/28/2023]
Abstract
The adsorption behaviors of Hg(II) on adsorbents, chitosan functionalized by generation 1.0-3.0 of amino-terminated hyperbranched polyamidoamine polymers (denoted as CTS-1.0, CTS-2.0 and CTS-3.0, respectively), were studied. The optimum pH corresponding to the maximum adsorption capacities was found to be 5.0 for the three adsorbents. The experimental equilibrium data of Hg(II) on the three adsorbents were fitted to the Freundlich and the Langmuir models, and it is found that the Langmuir isotherm was the best fitting model to describe the equilibrium adsorption. The kinetics data indicated that the adsorption process of Hg(II) ions on CTS-1.0, CTS-2.0 and CTS-3.0 were governed by the film diffusion and followed pseudo-second-order rate model. Thermodynamic analysis and FTIR analysis revealed that the adsorption behaviors of Hg(II) ions on the three adsorbents could be considered as spontaneous, endothermic and chemical sorption process, resulting in their higher adsorption capacities at higher temperature.
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Affiliation(s)
- Fang Ma
- School of Chemistry & Materials Science, Ludong University, Shandong 264025, China
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38
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Wang H, Bao C, Li F, Kong X, Xu J. Preparation and application of 4-amino-4′-nitro azobenzene modified chitosan as a selective adsorbent for the determination of Au(III) and Pd(II). Mikrochim Acta 2009. [DOI: 10.1007/s00604-009-0265-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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39
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Shi LE, Tang ZX. Adsorption of nuclease p1 on chitosan nano-particles. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2009. [DOI: 10.1590/s0104-66322009000200022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Lu-E Shi
- Hangzhou Normal University, China
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40
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Gurgel LVA, Gil LF. Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solutions by succinylated mercerized cellulose modified with triethylenetetramine. Carbohydr Polym 2009. [DOI: 10.1016/j.carbpol.2008.12.014] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Zalloum HM, Al-Qodah Z, Mubarak MS. Copper Adsorption on Chitosan-Derived Schiff Bases. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2008. [DOI: 10.1080/10601320802515225] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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42
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Sankararamakrishnan N, Kumar P, Singh Chauhan V. Modeling fixed bed column for cadmium removal from electroplating wastewater. Sep Purif Technol 2008. [DOI: 10.1016/j.seppur.2008.05.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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43
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Peirano Blondet F, Vincent T, Guibal E. Hydrogenation of nitrotoluene using palladium supported on chitosan hollow fiber: Catalyst characterization and influence of operative parameters studied by experimental design methodology. Int J Biol Macromol 2008; 43:69-78. [DOI: 10.1016/j.ijbiomac.2007.11.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2007] [Revised: 11/21/2007] [Accepted: 11/26/2007] [Indexed: 10/22/2022]
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44
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Boddu VM, Abburi K, Talbott JL, Smith ED, Haasch R. Removal of arsenic (III) and arsenic (V) from aqueous medium using chitosan-coated biosorbent. WATER RESEARCH 2008; 42:633-42. [PMID: 17822735 DOI: 10.1016/j.watres.2007.08.014] [Citation(s) in RCA: 167] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2007] [Revised: 08/03/2007] [Accepted: 08/16/2007] [Indexed: 05/06/2023]
Abstract
A biosorbent was prepared by coating ceramic alumina with the natural biopolymer, chitosan, using a dip-coating process. Removal of arsenic (III) (As(III)) and arsenic (V) (As(V)) was studied through adsorption on the biosorbent at pH 4.0 under equilibrium and dynamic conditions. The equilibrium adsorption data were fitted to Langmuir, Freundlich, and Redlich-Peterson adsorption models, and the model parameters were evaluated. All three models represented the experimental data well. The monolayer adsorption capacity of the sorbent, as obtained from the Langmuir isotherm, is 56.50 and 96.46 mg/g of chitosan for As(III) and As(V), respectively. The difference in adsorption capacity for As(III) and As(V) was explained on the basis of speciation of arsenic at pH 4.0. Column adsorption results indicated that no arsenic was found in the effluent solution up to about 40 and 120 bed volumes of As(III) and As(V), respectively. Sodium hydroxide solution (0.1M) was found to be capable of regenerating the column bed.
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Affiliation(s)
- Veera M Boddu
- Environmental Processes Branch, US Army Engineer Research and Development Center, Construction Engineering Research Laboratory, Champaign, IL 61826-9005, USA.
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45
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Vasconcelos HL, Camargo TP, Gonçalves NS, Neves A, Laranjeira MC, Fávere VT. Chitosan crosslinked with a metal complexing agent: Synthesis, characterization and copper(II) ions adsorption. REACT FUNCT POLYM 2008. [DOI: 10.1016/j.reactfunctpolym.2007.10.024] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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46
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SABARUDIN A, OSHIMA M, NOGUCHI O, MOTOMIZU S. Functionalization of chitosan with 3-nitro-4-amino benzoic acid moiety and its application to the collection/concentration of molybdenum in environmental water samples. Talanta 2007; 73:831-7. [DOI: 10.1016/j.talanta.2007.04.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2007] [Revised: 04/30/2007] [Accepted: 04/30/2007] [Indexed: 11/16/2022]
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47
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Martinez L, Agnely F, Leclerc B, Siepmann J, Cotte M, Geiger S, Couarraze G. Cross-linking of chitosan and chitosan/poly(ethylene oxide) beads: A theoretical treatment. Eur J Pharm Biopharm 2007; 67:339-48. [PMID: 17408936 DOI: 10.1016/j.ejpb.2007.02.012] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2006] [Revised: 02/13/2007] [Accepted: 02/16/2007] [Indexed: 11/28/2022]
Abstract
The major aim of this study was to get deeper insight into the process of polymer cross-linking and the resulting structure of beads based on chitosan (CS) or chitosan/poly(ethylene oxide) (CS/PEO) semi-interpenetrating networks (semi-IPNs) as new carrier materials for oral drug delivery. Spherical hydrogels were prepared by a dropping method. The uptake kinetics of the cross-linking agent glyoxal into the beads were monitored and quantitatively described using Fick's second law of diffusion. High-resolution synchrotron infrared microspectroscopy (SIRM) was used to characterize the inner structures of the beads. Importantly, the diffusion of glyoxal through the hydrogels was found to be much slower than the cross-linking reaction and the mesh size of the created networks to be much larger than the hydrodynamic diameter of glyoxal. The presence of PEO chains slightly decreased the diffusivity of glyoxal due to obstruction effects. However, the cross-linking reaction was not affected. Interestingly, the polymers were homogeneously cross-linked throughout the beads, except for a thin outer shell showing an elevated cross-linking density. Thus, the obtained cross-linked hydrogel-based beads exhibit well-defined polymeric structures and offer an interesting potential as novel oral drug delivery systems.
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Affiliation(s)
- Leticia Martinez
- Faculté de Pharmacie, Université Paris-Sud, Châtenay-Malabry, France
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48
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Fujiwara K, Ramesh A, Maki T, Hasegawa H, Ueda K. Adsorption of platinum (IV), palladium (II) and gold (III) from aqueous solutions onto L-lysine modified crosslinked chitosan resin. JOURNAL OF HAZARDOUS MATERIALS 2007; 146:39-50. [PMID: 17184914 DOI: 10.1016/j.jhazmat.2006.11.049] [Citation(s) in RCA: 237] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2006] [Revised: 11/21/2006] [Accepted: 11/23/2006] [Indexed: 05/13/2023]
Abstract
Crosslinked chitosan resin chemically modified with L-lysine has been used to investigate the adsorption of Pt(IV), Pd(II) and Au(III) from aqueous solutions. Batch adsorption studies were carried out with various parameters, such as initial metal ion concentration, contact time, pH and temperature. The maximum adsorption capacity was found at pH 1.0 for Pt(IV), at pH 2.0 for Au(III) and Pd(II). Langmuir and Freundlich isotherm models were applied to analyze the experimental data. The best interpretation for the experimental data was given by the Langmuir isotherm and the maximum adsorption capacity was found to be 129.26 mg/g for Pt(IV), 109.47 mg/g for Pd(II) and 70.34 mg/g for Au(III). The kinetic data was tested using pseudo-first-order and pseudo-second-order kinetic models. Kinetic data correlated well with the pseudo-second-order kinetic model, indicating that the chemical sorption was the rate-limiting step. Thermodynamic parameters like Gibbs free energy (DeltaG degrees), enthalpy (DeltaH degrees) and entropy (DeltaS degrees) were evaluated by applying the Van't Hoff equation. The thermodynamic study indicated that the adsorption process is spontaneous and exothermic in nature. The desorption studies were carried out using various reagents. The maximum percent desorption of precious metal ions were obtained when the reagent 0.7 M thiourea-2 M HCl was used.
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Affiliation(s)
- Kensuke Fujiwara
- Department of Chemistry and Chemical Engineering, Graduate School of Natural Science and Technology, Kakuma, Kanazawa University, Kanazawa 920-1192, Japan
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Tang XH, Zhang XM, Guo CC, Zhou AL. Adsorption of Pb2+ on Chitosan Cross-Linked with Triethylene-Tetramine. Chem Eng Technol 2007. [DOI: 10.1002/ceat.200600379] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Webster A, Halling MD, Grant DM. Metal complexation of chitosan and its glutaraldehyde cross-linked derivative. Carbohydr Res 2007; 342:1189-201. [PMID: 17407772 DOI: 10.1016/j.carres.2007.03.008] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2006] [Revised: 03/02/2007] [Accepted: 03/06/2007] [Indexed: 11/22/2022]
Abstract
The physicochemical characterization of metal complexed with chitosan (CS) and its glutaraldehyde cross-linked derivative (CSGA) was investigated. Seven metal ions from chromium through zinc of the first row of the transition metals were selected for complexation. Structural features pertinent to where and how metals bind into both polymers are our main interest. Studies using solid-state NMR spectroscopy and XRPD (X-ray powder diffraction) supported by ESR spectroscopy, ICP-OES (inductively couple plasma-optical emission spectroscopy) and far-FTIR spectroscopy for metal interaction with nitrogen sites at C-2 of the metal-polymer complexes were performed. Theoretical calculations of the metal-polymer ratio, the approximate charges on nitrogen for both amine and imino-linker, and the proton affinity between an alcohol group from the polymer and an amino/imino group are reported. A helical coiled chitosan model and a 2C1L (two-chitosans with one linker) model are proposed here. The metal uptake mechanism for both polymers is concluded to be absorption within the polymers, rather than adsorption on the polymer surface.
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Affiliation(s)
- Athena Webster
- University of Utah, Chemistry Department, Salt Lake City, UT 84112, USA
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