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Radiation synthesis and characterization of starch-acrylic acid-nanohalloysite composite for the removal of Co(II) ions from aqueous solutions. Appl Radiat Isot 2022; 191:110558. [DOI: 10.1016/j.apradiso.2022.110558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/11/2022] [Accepted: 11/07/2022] [Indexed: 11/13/2022]
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2
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Mahrous SS, Mansy MS, Abdel Galil EA. Decontamination of 137Cs,95Zr, 154Eu and 144Ce from aqueous solutions using polyacrylamide titanium tungstosilicate. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08583-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
AbstractPolyacrylamide titanium tungstosilicate (PAM/TiWSi) composite was synthesised using a sol–gel process and characterized via FT-IR, SEM, XRD, and TGA methods. The effects of several factors on the adsorption of Cs+, Eu3+, Ce3+and Zr4+ have been studied, including contact duration, pH, temperature, and starting concentration. PAM/TiWSi sorption of Cs+, Eu3+, Ce3+and Zr4+ was studied in terms of isotherms and kinetics. The Freundlich model was better linked with isotherm data than the Langmuir model. Cs+, Eu3+, Ce3+and Zr4+ have maximum sorption capacities (Qmax) of 30.7, 26.6, 25,3 and 29.7 mg.g−1, respectively. Furthermore, the sorption process was found based on pseudo-second-order.
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3
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Hovey JL, Dittrich TM, Allen MJ. Coordination Chemistry of Surface-Associated Ligands for Solid–Liquid Adsorption of Rare-Earth Elements. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.05.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Highly Efficient Recovery of Ruthenium from Aqueous Solutions by Adsorption Using Dibenzo-30-Crown-10 Doped Chitosan. Polymers (Basel) 2022; 14:polym14081551. [PMID: 35458298 PMCID: PMC9030289 DOI: 10.3390/polym14081551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/25/2022] [Accepted: 04/06/2022] [Indexed: 12/10/2022] Open
Abstract
Ruthenium, as an industrial by-product or from natural sources, represents an important economical resource due to its specific applications. A complex problem is represented by ruthenium separation during reprocessing operations, therefore, different materials and methods have been proposed. The present study aims to develop a new material with good adsorbent properties able to be used for ruthenium recovery by adsorption from aqueous solutions. Absorbent material was obtained using chitosan (Ch) surface modification with dibenzo-30-crown-10 ether (DB30C10). Chitosan represents a well-known biopolymer with applicability in different adsorptive processes due to the presence of hydroxyl-, carboxyl-, and nitrogen-containing groups in the structure. Additionally, crown ethers are macromolecules with a good complexation capacity for metallic ions. It is expected that the adsorptive efficiency of newly prepared material will be superior to that of the individual components. New synthesized material was characterized using scanning electron microscopy coupled with energy dispersive X-ray (SEM–EDX), Fourier transform infrared spectroscopy (FT-IR), Brunauer–Emmett–Teller surface area analysis (BET), and determination of point of zero charge (pZc). Results obtained from the performed kinetic, thermodynamic, and equilibrium studies confirmed the good adsorptive capacity of the prepared material, Ch-DB30C10, obtaining a maximum adsorption capacity of 52 mg Ru(III) per gram. This adsorption capacity was obtained using a solution with an initial concentration of 275 mg L−1, at pH 2, and 298 K. Ru(III) adsorption kinetics were studied by modeling the obtained experimental data with pseudo-first order and pseudo-second order models. Desorption studies established that the optimum eluent was represented by the 5M HNO3 solution. Based on the performed studies, a mechanism for recovery of ruthenium by adsorption was proposed.
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Pujol Pozo AA, Monroy-Guzmán F, Gómora- Herrera DR, Navarrete-Bolaños J, Bustos Bustos E. Radioactive decontamination of metal surfaces using peelable films made from chitosan gels and chitosan/magnetite nanoparticle composites. PROGRESS IN NUCLEAR ENERGY 2022. [DOI: 10.1016/j.pnucene.2021.104088] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Investigation on removing of 60Co2+ radionuclide from radioactive waste water by Fe(III)-modified Algerian bentonite. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07895-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Abdelmonem IM, Metwally E, Siyam TE, Abou El-Nour F, Mousa ARM. Gamma radiation-induced preparation of chitosan-acrylic acid-1-vinyl-2-vinylpyrrolidone/multiwalled carbon nanotubes composite for removal of 152+154Eu, 60Co and 134Cs radionuclides. Int J Biol Macromol 2020; 164:2258-2266. [PMID: 32805290 DOI: 10.1016/j.ijbiomac.2020.08.120] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 12/20/2022]
Abstract
Removal behaviors of 152+154Eu, 60Co, and 134Cs radionuclides onto Chitosan-acrylic acid-1-vinyl-2-vinylpyrrolidone/oxidized multi-walled carbon nanotubes (CTS-AA-VP/o-MWCNTs) composite has been investigated by batch adsorption technique. CTS-AA-VP/o-MWCNTs composite has been synthesized by copolymerization of acrylic acid (AA) and 1-vinyl-2-vinylpyrrolidone (VP) onto the surface of chitosan/oxidized multi-walled carbon nanotubes (CTS/o-MWCNTs) using gamma radiation. SEM, TGA, and FTIR were applied to characterize the morphology, thermal stability, and structure of the composite. The composite shows high removal capacity of 321.77, 369.91, and 456.46 mg/g towards 152+154Eu, 60Co, and 134Cs radionuclides, respectively.
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Affiliation(s)
- Islam Mohamed Abdelmonem
- Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt.
| | - Essam Metwally
- Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt
| | - Tharwat Essa Siyam
- Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt
| | - Farid Abou El-Nour
- Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt
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Rasoulzadeh H, Dehghani MH, Mohammadi AS, Karri RR, Nabizadeh R, Nazmara S, Kim KH, Sahu J. Parametric modelling of Pb(II) adsorption onto chitosan-coated Fe3O4 particles through RSM and DE hybrid evolutionary optimization framework. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111893] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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9
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Adsorption of La (III) on Chitosan-Imprinted Nano Zero-Valent Iron Nanocomposite (CS@nZVI): Process Optimization, Isotherm, Kinetic, and Thermodynamic Studies. HEALTH SCOPE 2019. [DOI: 10.5812/jhealthscope.91419] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Ibrahim AG, Saleh AS, Elsharma EM, Metwally E, Siyam T. Chitosan‑g‑maleic acid for effective removal of copper and nickel ions from their solutions. Int J Biol Macromol 2019; 121:1287-1294. [DOI: 10.1016/j.ijbiomac.2018.10.107] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 09/17/2018] [Accepted: 10/14/2018] [Indexed: 11/25/2022]
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11
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B A, Talasila S, Rajesh V, N. R. Removal of Europium from aqueous solution using Saccharomyces cerevisiae immobilized in glutaraldehyde cross-linked chitosan. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1556303] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Arunraj B
- Department of Chemistry, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad, India
| | - Sathvika Talasila
- Department of Chemistry, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad, India
| | - Vidya Rajesh
- Department of Biological Sciences, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad, India
| | - Rajesh N.
- Department of Chemistry, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad, India
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12
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Orabi A, Atrees M, Salem H. Selective preconcentration of uranium on chitosan stearoyl thiourea prior to its spectrophotometric determination. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1445113] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Ahmed Orabi
- Analytical Department, Nuclear Materials Authority, El Maadi, Cairo, Egypt
| | - Mohamed Atrees
- Analytical Department, Nuclear Materials Authority, El Maadi, Cairo, Egypt
| | - Hend Salem
- Analytical Department, Nuclear Materials Authority, El Maadi, Cairo, Egypt
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13
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Ahmad M, Manzoor K, Ikram S. Versatile nature of hetero-chitosan based derivatives as biodegradable adsorbent for heavy metal ions; a review. Int J Biol Macromol 2017; 105:190-203. [DOI: 10.1016/j.ijbiomac.2017.07.008] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/09/2017] [Accepted: 07/02/2017] [Indexed: 10/19/2022]
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14
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Dasthaiah K, Selvan BR, Suneesh AS, Venkatesan KA, Antony MP, Gardas RL. Studies on the uptake of Am(III) and Eu(III) on ionic liquid modified polystyrene-divinyl benzene. RADIOCHIM ACTA 2017. [DOI: 10.1515/ract-2017-2784] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Imidazolium bis(2-ethylhexyl)phosphate ionic liquid was anchored on a polystyrene-divinylbenzene (PS-DVB) copolymer and the product (R-Im-DEHP) was studied for the extraction of Am(III) and Eu(III) from dilute nitric acid medium to examine the feasibility using the anchored adsorbent for their mutual separation. The effect of various parameters such as the duration of equilibration, concentration of nitric acid, europium ion, and diethylenetriaminepentaacetic acid (DTPA) in aqueous phase on the distribution coefficient (K
d) of Am(III) and Eu(III) was studied. The distribution coefficient of Am(III) and Eu(III) decreased with increase in the concentration of nitric acid. Rapid extraction of metal ions in the initial stages of equilibration followed by the establishment of equilibrium occurred within 4 h. The data on the rate of uptake of Am(III) and Eu(III) were fitted into pseudo-first order and pseudo-second order rate equation. The extraction isotherm was fitted to Langmuir and Freundlich adsorption models and the apparent europium extraction capacity was determined. The mechanism of extraction was elucidated and the conditions needed for efficient separation of Am(III) from Eu(III) was optimized using DTPA. The study indicated the possibility of using R-Im-DEHP for the separation of Eu(III) from Am(III) with high separation factors.
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Affiliation(s)
- K. Dasthaiah
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600 036 , India
| | - B. Robert Selvan
- Fuel Chemistry Division, Indira Gandhi Centre for Atomic Research , Kalpakkam 603 102 , India
| | - A. S. Suneesh
- Fuel Chemistry Division, Indira Gandhi Centre for Atomic Research , Kalpakkam 603 102 , India
| | - K. A. Venkatesan
- Fuel Chemistry Division, Indira Gandhi Centre for Atomic Research , Kalpakkam 603 102 , India , Fax: +91 44 27480065, Tel: +91 44 27480098
| | - M. P. Antony
- Fuel Chemistry Division, Indira Gandhi Centre for Atomic Research , Kalpakkam 603 102 , India
| | - R. L. Gardas
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600 036 , India
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15
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Hamed MM, Ali MMS, Holiel M. Preparation of activated carbon from doum stone and its application on adsorption of 60Co and 152+154Eu: Equilibrium, kinetic and thermodynamic studies. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2016; 164:113-124. [PMID: 27450965 DOI: 10.1016/j.jenvrad.2016.07.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 06/26/2016] [Accepted: 07/04/2016] [Indexed: 06/06/2023]
Abstract
Removal of radionuclides from wastewater before discharging to environment is necessary for the safety of living beings. Activated carbon prepared from doum stone (DS), an agricultural waste by-product, has been used for the sorption of 60Co and 152+154Eu radionuclides from aqueous solutions. DS has been characterized by different analytical tools. The efficiency of the adsorbent was investigated using batch sorption technique under different experimental conditions. The equilibrium sorption data were analyzed using Freundlich and Langmuir isotherm models. The kinetic experimental data were analyzed using four kinetic models including pseudo-first order, pseudo-second order, Elovich and intraparticle diffusion model to examine the mechanism of sorption and potential rate-controlling step. The maximum capacity of DS was found to be 121 mg/g and 166 mg/g for cobalt and europium, respectively. Sorption efficiency of DS to remove 60Co, 152+154Eu and 134Cs from real radioactive wastewater and environmental (river water and sea water) samples was also investigated. The results revealed that the prepared DS as low cost could be used as a promising material for the simultaneous removal of different radionuclides such as 60Co, 152+154Eu and 134Cs, or trivalent actinides such as 241, 242m,243Am from real radioactive waste and environmental water samples.
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Affiliation(s)
- Mostafa M Hamed
- Hot Laboratories and Waste Management Center, Atomic Energy Authority, 13759, Cairo, Egypt.
| | - M M S Ali
- Hot Laboratories and Waste Management Center, Atomic Energy Authority, 13759, Cairo, Egypt
| | - M Holiel
- Hot Laboratories and Waste Management Center, Atomic Energy Authority, 13759, Cairo, Egypt
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Pestov A, Bratskaya S. Chitosan and Its Derivatives as Highly Efficient Polymer Ligands. Molecules 2016; 21:330. [PMID: 26978343 PMCID: PMC6273047 DOI: 10.3390/molecules21030330] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 02/26/2016] [Accepted: 02/29/2016] [Indexed: 11/16/2022] Open
Abstract
The polyfunctional nature of chitosan enables its application as a polymer ligand not only for the recovery, separation, and concentration of metal ions, but for the fabrication of a wide spectrum of functional materials. Although unmodified chitosan itself is the unique cationic polysaccharide with very good complexing properties toward numerous metal ions, its sorption capacity and selectivity can be sufficiently increased and turned via chemical modification to meet requirements of the specific applications. In this review, which covers results of the last decade, we demonstrate how different strategies of chitosan chemical modification effect metal ions binding by O-, N-, S-, and P-containing chitosan derivatives, and which mechanisms are involved in binding of metal cation and anions by chitosan derivatives.
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Affiliation(s)
- Alexander Pestov
- I.Ya. Postovsky Institute of Organic Synthesis, Ural Branch of Russian Academy of Sciences, Yekaterinburg 620990, Russia.
- Institute of Chemistry, Far East Branch of Russian Academy of Sciences, Vladivostok 690022, Russia.
| | - Svetlana Bratskaya
- Institute of Chemistry, Far East Branch of Russian Academy of Sciences, Vladivostok 690022, Russia.
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17
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Polysaccharide biopolymers modified with titanium or nickel nanoparticles for removal of radionuclides from aqueous solutions. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-015-4414-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Guo Z, Li Y, Pan S, Xu J. Fabrication of Fe3O4@cyclodextrin magnetic composite for the high-efficient removal of Eu(III). J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.02.034] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Cao C, Xiao L, Chen C, Shi X, Cao Q, Gao L. In situ preparation of magnetic Fe3O4/chitosan nanoparticles via a novel reduction–precipitation method and their application in adsorption of reactive azo dye. POWDER TECHNOL 2014. [DOI: 10.1016/j.powtec.2014.03.025] [Citation(s) in RCA: 188] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Elkholy SS, Salem HA, Eweis M, Elsabee MZ. Synthesis and characterization of some acyl thiourea derivatives of chitosan and their biocidal activities. Int J Biol Macromol 2014; 70:199-207. [PMID: 25002014 DOI: 10.1016/j.ijbiomac.2014.05.068] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 05/12/2014] [Accepted: 05/19/2014] [Indexed: 11/30/2022]
Abstract
Three acyl derivatives of chitosan (CS) with different side chains were synthesized and their structures were characterized. Their swelling behavior was investigated. The antifungal behavior of these chitosan derivatives was investigated in vitro on the mycelial growth, sporulation and germination of conidia or sclerotia of the sugar-beet pathogens, Rhizoctonia solani K"uhn (AG2-2) and Sclerotium rolfsii Sacc. All the prepared derivatives had a significant inhibiting effect on the different stages of development on the germination of conidia or sclerotia of all the investigated fungi. In the absence of chitosan and its derivative, R. solani exhibited the fastest growth of the fungi studied.
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Affiliation(s)
- Said S Elkholy
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Cairo 12613, Egypt.
| | - Hend A Salem
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Cairo 12613, Egypt
| | - Mohamed Eweis
- Department of Botany, Faculty of Science, Cairo University, Giza, Cairo 12613, Egypt
| | - Maher Z Elsabee
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Cairo 12613, Egypt
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Metwally SS, Ayoub RR, Aly HF. Utilization of low-cost sorbent for removal and separation of 134Cs, 60Co and 152+154Eu radionuclides from aqueous solution. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3185-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Sheng G, Dong H, Li Y. Characterization of diatomite and its application for the retention of radiocobalt: role of environmental parameters. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2012; 113:108-115. [PMID: 22677879 DOI: 10.1016/j.jenvrad.2012.05.011] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2012] [Revised: 04/25/2012] [Accepted: 05/13/2012] [Indexed: 06/01/2023]
Abstract
Clay minerals have been extensively studied because of their strong sorption and complexation ability. In this work, diatomite was characterized by using acid-base titration. Retention of radionuclide (60)Co(II) from aqueous solution by sorption onto diatomite was investigated by using batch technique under various environmental conditions such as pH, ionic strength, humic acid (HA), fulvic acid (FA), and temperature. The results indicated that the sorption of Co(II) onto diatomite was strongly dependent on pH. At low pH value, the sorption of Co(II) was dominated by outer-sphere surface complexation and ion exchange with Na(+)/H(+) on diatomite surfaces, whereas inner-sphere surface complexation was the main sorption mechanism at high pH value. The D-R model fitted the sorption isotherms better than the Langmuir and Freundlich models. The thermodynamic parameters (ΔH(0), ΔS(0) and ΔG(0)) calculated from the temperature-dependent sorption isotherms suggested that the sorption of Co(II) was an endothermic and spontaneous process. In addition, diatomite showed higher sorption capacity than that of lots of the sorbents reported in the literatures we surveyed. From the results of Co(II) removal by diatomite, the optimum reaction conditions can be obtained for the maximum removal of Co(II) from water. It is clear that the best pH values of the system to remove Co(II) from solution by using diatomite are 7-8. Considering the low cost and effective disposal of Co(II)-contaminated wastewaters, the best condition for Co(II) removal is at room temperature and solid content of 0.5 g/L. The results might be important for assessing the potential of practical application of diatomite in Co(II) and related radionuclide pollution management.
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Affiliation(s)
- Guodong Sheng
- School of Chemistry and Chemical Engineering, Shaoxing University, No. 508 Huancheng West Road, Shaoxing 312000, PR China.
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Elkholy SS, Khalek HA, Elsabee MZ. Grafting of 1-Cyanoethanoyl-4-acryloylthiosemicabazide onto Chitosan and Biocidal Activity of the Graft Copolymers. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2012. [DOI: 10.1080/10601325.2012.703495] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Impact of environmental conditions on the sequestration of radionuclide 60Co(II) at Ca-rectorite/water interface. J Radioanal Nucl Chem 2012. [DOI: 10.1007/s10967-012-1758-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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25
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Mg–Al layered double hydroxide intercalated with sodium lauryl sulfate as a sorbent for 152+154Eu from aqueous solutions. J Radioanal Nucl Chem 2012. [DOI: 10.1007/s10967-012-1715-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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26
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Polyakov EV, Tsvetokhin AG, Barysheva NM, Ovchinnikov NA, Pashkeev IY, Mikhailov GG, Volkov IV. Sorption properties of silicate materials based on Ca2SiO4. RADIOCHEMISTRY 2011. [DOI: 10.1134/s1066362211050092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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27
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Guo Z, Li Y, Zhang S, Niu H, Chen Z, Xu J. Enhanced sorption of radiocobalt from water by Bi(III) modified montmorillonite: a novel adsorbent. JOURNAL OF HAZARDOUS MATERIALS 2011; 192:168-175. [PMID: 21612864 DOI: 10.1016/j.jhazmat.2011.05.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 04/12/2011] [Accepted: 05/01/2011] [Indexed: 05/30/2023]
Abstract
In this study, Ca-montmorillonite (Ca-Mt) modified with Bi(3+) was used as a novel adsorbent for the sorption of Co(II) from aqueous solutions. The sorption of Co(II) on Bi-montmorillonite (Bi-Mt) was investigated as a function of contact time, pH, ionic strength, adsorbent content, Co(II) concentrations, fulvic acid (FA) and temperature. Compared to Ca-Mt, Bi-Mt showed a higher affinity to bind Co(II) ions. The sorption percentage of Co(II) on Bi-Mt increased with increasing pH at pH 3.0-8.5, and then maintained the high level at pH 8.5-12. The sorption of Co(II) on Bi-Mt was dependent on ionic strength at low pH, and independent of ionic strength at high pH. The presence of FA enhanced Co(II) sorption at low pH, but suppressed Co(II) sorption at high pH. The thermodynamic data derived from temperature dependent sorption isotherms suggested that the sorption of Co(II) on Bi-Mt was spontaneous and endothermic process. Outer-sphere surface complexation and/or ion exchange were the main mechanisms of Co(II) sorption on Bi-Mt at low pH, whereas inner-sphere surface complexation was the main sorption mechanism at high pH. From the experimental results, it is possible to conclude that Bi-Mt is suitable for application of Co(II) removal from aqueous solutions.
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Affiliation(s)
- Zhiqiang Guo
- School of Nuclear Science and Technology, Lanzhou University, 730000, Lanzhou, PR China
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Padala AN, Bhaskarapillai A, Velmurugan S, Narasimhan SV. Sorption behaviour of Co(II) and Cu(II) on chitosan in presence of nitrilotriacetic acid. JOURNAL OF HAZARDOUS MATERIALS 2011; 191:110-117. [PMID: 21592656 DOI: 10.1016/j.jhazmat.2011.04.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Revised: 04/10/2011] [Accepted: 04/12/2011] [Indexed: 05/30/2023]
Abstract
Separation and isolation of radioactive cobalt ((60)Co), one of the main contributors towards the activity build up in nuclear reactors, is essential for radioactive waste volume reduction during nuclear reactor decontamination procedures. In this context, sorption of free and complexed Co(II), Cu(II) and nitrilotriacetic acid (NTA) on the biosorbent, chitosan was studied. A detailed investigation on the role of pH on sorption of Co(II), Cu(II) and NTA was done. Uptake capacities of the metal ions and NTA were measured within pH range of 2.0-7.0. At pH above 5, the NTA uptake capacities were found to be higher in presence of the metal ions than in their absence. Effect of NTA was found to be more pronounced on copper uptake than on cobalt uptake. Significant change in selectivity of chitosan towards metal ion uptake from NTA medium was observed with respect to change in pH. At pH 2.9, the uptake of cobalt was found to be more than that of copper, while the selectivity was reversed at pH 6.0. The respective selectivity coefficient (k(Co/Cu)) values were found to be 2.06 and 0.072.
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Affiliation(s)
- Abdul Nishad Padala
- Water and Steam Chemistry Division, BARC Facilities, Kalpakkam, Tamil Nadu, India.
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Bratskaya SY, Ustinov AY, Azarova YA, Pestov AV. Thiocarbamoyl chitosan: Synthesis, characterization and sorption of Au(III), Pt(IV), and Pd(II). Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.04.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abderrahim O, Ferrah N, Didi MA, Villemin D. A new sorbent for europium nitrate extraction: phosphonic acid grafted on polystyrene resin. J Radioanal Nucl Chem 2011. [DOI: 10.1007/s10967-011-1243-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sureshkumar MK, Das D, Mallia MB, Gupta PC. Adsorption of uranium from aqueous solution using chitosan-tripolyphosphate (CTPP) beads. JOURNAL OF HAZARDOUS MATERIALS 2010; 184:65-72. [PMID: 20817347 DOI: 10.1016/j.jhazmat.2010.07.119] [Citation(s) in RCA: 158] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2010] [Revised: 07/21/2010] [Accepted: 07/30/2010] [Indexed: 05/27/2023]
Abstract
Chitosan-tripolyphosphate (CTPP) beads were prepared using in-liquid curing method and used for the adsorption of uranium from aqueous solution. Beads were prepared at two different cross-linking densities by adjusting the pH of the tripolyphosphate solution. The synthesized beads were characterized using FTIR spectroscopy before and after adsorption of uranium. Beads having higher cross-linking are found to have better adsorption capacity for uranium. Factors that influence the uranium adsorption onto CTPP beads such as solution pH, contact time and initial uranium concentration were studied in detail. The experimental results were fitted into Langmuir and Freundlich adsorption isotherms. From Langmuir adsorption model the adsorption capacity of CTPP beads for uranium is estimated as 236.9 mg/g. Pseudo-first order, pseudo-second order and intraparticle diffusion model were applied to the observed kinetics data and the results shows that the pseudo-second order model is more suitable to explain the kinetics of adsorption of uranium on CTPP beads. FTIR spectroscopic characterization of the beads showed that the phosphate groups may be more responsible for the adsorption of uranium on CTPP beads.
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Affiliation(s)
- M K Sureshkumar
- Radiation Safety System Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - D Das
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - M B Mallia
- Radiopharmaceutical Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - P C Gupta
- Radiation Safety System Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
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Applications of chitin- and chitosan-derivatives for the detoxification of water and wastewater--a short review. Adv Colloid Interface Sci 2009; 152:26-38. [PMID: 19833317 DOI: 10.1016/j.cis.2009.09.003] [Citation(s) in RCA: 328] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2009] [Revised: 09/27/2009] [Accepted: 09/27/2009] [Indexed: 11/23/2022]
Abstract
Chitin and chitosan-derivatives have gained wide attention as effective biosorbents due to low cost and high contents of amino and hydroxyl functional groups which show significant adsorption potential for the removal of various aquatic pollutants. In this review, an extensive list of chitin- and chitosan-derivatives from vast literature has been compiled and their adsorption capacities for various aquatic pollutants as available in the literature are presented. This paper will give an overview of the principal results obtained during the treatment of water and wastewater utilizing chitin and chitosan-derivatives for the removal of: (a) metal cations and metal anions; (b) radionuclides; (c) different classes of dyes; (d) phenol and substituted phenols; (e) different anions and other miscellaneous pollutants. The review provides a summary of recent information obtained using batch studies and deals with the various adsorption mechanisms involved. It is evident from the literature survey that chitin- and chitosan-derivatives have shown good potential for the removal of various aquatic pollutants. However, still there is a need to find out the practical utility of such developed adsorbents on commercial scale.
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