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Saad HE, El-Sayed YS, El-Reash GMA, Gaber M, Hashem MA. Synthesis, application and molecular docking of modified cellulose with diaminoguanidine as complexing agent for selective separation of Cu (II), Cd (II) and Hg (II) ions from alum sample. Sci Rep 2024; 14:16808. [PMID: 39039161 PMCID: PMC11263551 DOI: 10.1038/s41598-024-67218-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 07/09/2024] [Indexed: 07/24/2024] Open
Abstract
A new modified cellulose with diaminoguanidine (Cel-Gua) synthesized for specific recovery of Cu (II), Cd (II), and Hg (II) from the alum sample. Cellulose was silanized by 3-chloropropyltrimethoxysilane and then was modified with diaminoguanidine to obtain N-donor chelating fibers. Fourier transform-infrared spectroscopy, scanning electron microscopy, X-ray diffraction, zeta potential, electrons disperse X-ray analysis, elemental analyses (C, H and N), and thermogravimetric analysis were used for characterization. Factors influencing the adsorption were thoroughly examined. Under the optimal conditions, the Cel-Gua sorbent displayed maximum adsorption capacities of 94.33, 112.10 and 95.78 mg/g for Cu (II), Cd (II), and Hg (II), respectively. The sorption process of metal ions is equipped by kinetic model PSO and Langmuir adsorption isotherm. The calculated thermodynamic variables confirmed that the adsorption of Cu (II), Cd (II) and Hg (II) by Cel-Gua sorbent is a spontaneous and exothermic process. In our study, we used the molecular operating environment software to conduct molecular docking simulations on the Cel-Gua compound. The results of the docking simulations showed that the Cel-Gua compound displayed greater potency and a stronger affinity for the Avr2 effector protein derived from Fusarium oxysporum, a fungal plant pathogen (code 5OD4). The adsorbent was stable for 7 cycles, thus allowing its safe reutilization.
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Affiliation(s)
- Heba E Saad
- Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Yusif S El-Sayed
- Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Gaber M Abu El-Reash
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt
| | - Mohamed Gaber
- Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Mohamed A Hashem
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt
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2
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Review of adsorbents incorporating calixarene derivatives used for metals recovery and hazardous ions removal: the concept of adsorbent design and classification of adsorbents. J INCL PHENOM MACRO 2021. [DOI: 10.1007/s10847-021-01053-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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3
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Yuksel N, Fellah MF. Host–guest complex properties of calix[4]arene derivatives: a DFT study of adsorption and sensing of an anticancer drug, 5-fluorouracil. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02736-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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4
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Batra S, Awasthi A, Iqbal M, Datta D. Solvent impregnated resins for the treatment of aqueous solutions containing different compounds: a review. REV CHEM ENG 2020. [DOI: 10.1515/revce-2019-0025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this review paper, a complete study and analysis of the research articles dealing with the removal of various organic and inorganic pollutants using solvent impregnated resins (SIR) is carried out. The method of impregnation, characterizations of prepared resin, and regeneration techniques of different SIRs for batch and continuous fixed bed columns are presented. The effects of different operating parameters (e.g., loading of solvent on the resin, dosage of adsorbent, initial solute concentration, pH, temperature, time, ionic strength) on the separation efficiency of SIR in the batch mode are discussed. Thermodynamic parameters (change in Gibbs free energy, enthalpy, and entropy) are tabulated from the data available in the literature, and if not given, then their values are calculated and presented. The influence of parameters (flow rate, bed height, pH, concentration of the solution, etc.) on the fixed bed column performance is analyzed. Design aspects of the column are also discussed, and the dimensions of fixed bed columns for industrial applications are proposed.
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Affiliation(s)
- Sakshi Batra
- Department of Chemical Engineering , Malaviya National Institute of Technology (MNIT) , Jaipur , Rajasthan, 302017 , India
| | - Anjali Awasthi
- Department of Chemical Engineering , Malaviya National Institute of Technology (MNIT) , Jaipur , Rajasthan, 302017 , India
| | - Muzaffar Iqbal
- Department of Chemical Engineering , Malaviya National Institute of Technology (MNIT) , Jaipur , Rajasthan, 302017 , India
| | - Dipaloy Datta
- Department of Chemical Engineering , Malaviya National Institute of Technology (MNIT) , Jaipur , Rajasthan, 302017 , India
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Fabrication of magnetic functionalized m-carboxyphenyl azo calix[4]arene amine oxime derivatives for highly efficient and selective adsorption of uranium (VI). J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07029-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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A Novel Biosorbent for Preconcentrations of Co(II) and Hg(II) in Real Samples. Sci Rep 2020; 10:455. [PMID: 31949208 PMCID: PMC6965309 DOI: 10.1038/s41598-019-57401-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 11/21/2019] [Indexed: 11/09/2022] Open
Abstract
A new biosorbent, composed of Amberlite XAD-4 loaded with Anoxybacillus kestanboliensis, was developed and surface morphologies were investigated by SEM and FT-IR. It was used for solid phase column preconcentrations of Co(II) and Hg(II) before their measurements by ICP-OES. LODs were calculated as 0.04 and 0.06 ng mL−1 for Co(II) and Hg(II) respectively. The maximum biosorption capacities were determined as 24.3 and 27.8 mg g−1 for Co(II) and Hg(II) respectively. Preconcentration factors were achieved for Co(II) and Hg(II) as 80. The method validation was performed by analyzing certified reference materials. The new process was successfully utilized for the preconcentration of these metals in various food samples. It should be highlighted that the sensitivity of ICP-OES was critically improved by applying developed method. Hence, ICP-OES could be an effective alternative for ICP-MS and/or GF-AAS.
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7
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Maleic acid modified cellulose for scavenging lead from water. Int J Biol Macromol 2019; 129:293-304. [DOI: 10.1016/j.ijbiomac.2019.02.037] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 01/28/2019] [Accepted: 02/05/2019] [Indexed: 11/29/2022]
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8
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Memon NA, Memon FN, KARA HK, KARA H, Sherazi STH, Memon AA, Memon S, Leghari MK. Selective online solid-phase extraction of copper using p-morpholino-methylcalix[4]arene appended silica-based column. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1600551] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Naeem A. Memon
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Fakhar N. Memon
- Department of Chemistry, University of Karachi, Karachi, Pakistan
| | - Hatice K. KARA
- Department of Chemistry, Selçuk University, Konya, Turkey
| | - Hüseyin KARA
- Department of Chemistry, Selçuk University, Konya, Turkey
| | - Sayed T. H. Sherazi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Ayaz A. Memon
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Shahabuddin Memon
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Muhammad K. Leghari
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
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Pahan S, Singh K, Sinha Roy P, Panja S, Dhami P, Sharma J, Kaushik C, Kumar M, Yadav J. Encapsulated polymeric beads impregnating unexplored amide, N,N′-bis(2-ethyl hexyl) α-hydroxy acetamide (BEHGA) – preparation, sorption and kinetic studies for tri-, tetra- and hexavalent radionuclides. RADIOCHIM ACTA 2018. [DOI: 10.1515/ract-2017-2814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Removal of actinides (trivalent, tetravalent and hexavalent) from nitric acid medium was studied using solid-liquid extraction technique employing polymeric encapsulated beads (PEBs) using an indigenously synthesized, unexplored novel monoamide, N,N′-bis(2-ethyl hexyl) α-hydroxy acetamide (BEHGA). The PEBs were synthesized by phase inversion technique. The structure and morphology of the synthesized PEBs were evaluated by employing various characterization techniques like FT-IR, TGA and SEM. The well characterized PEBs were studied for its Am(III), Pu(IV) and U(VI) sorption behavior from nitric acid medium. Kinetics studies showed that the sorption is fast with equilibrium being reached within 60 min of equilibration. The sorption mechanism follows pseudo-second-order mechanism with intraparticle diffusion playing an important role. Langmuir isotherm model was found to best describe the sorption isotherm. The maximum Am(III) sorption capacity of the PEBs was found to be 8.45 mg/g (experimental) and 8.43 mg/g (Langmuir). Back extraction was possible using 0.5 M HNO3. Stability of the PEBs was found to be quite good with no significant structural deformation or leaching out of the extractant in 4.0 M HNO3 solution for at least up to 8 days.
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Affiliation(s)
- S. Pahan
- Process Development Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India
| | - K.K. Singh
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India
| | - P. Sinha Roy
- Process Development Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India
| | - S. Panja
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085 , India , Tel.: +91 22 25597275
| | - P.S. Dhami
- Fuel Reprocessing Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India , Tel.: +91 22 2559 5498
| | - J.N. Sharma
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India
| | - C.P. Kaushik
- Waste Management Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India
| | - M. Kumar
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India
| | - J.S. Yadav
- Fuel Reprocessing Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India
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10
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Kenawy I, Hafez M, Ismail M, Hashem M. Adsorption of Cu(II), Cd(II), Hg(II), Pb(II) and Zn(II) from aqueous single metal solutions by guanyl-modified cellulose. Int J Biol Macromol 2018; 107:1538-1549. [DOI: 10.1016/j.ijbiomac.2017.10.017] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 09/29/2017] [Accepted: 10/03/2017] [Indexed: 10/18/2022]
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11
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Preconcentration and fluorometric detection of mercury ions using magnetic core-shell chitosan microspheres modified with a rhodamine spirolactam. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1644-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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12
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Gabor A, Davidescu CM, Negrea A, Ciopec M, Lupa L. Behaviour of silica and florisil as solid supports in the removal process of as(v) from aqueous solutions. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2015; 2015:562780. [PMID: 25821633 PMCID: PMC4364358 DOI: 10.1155/2015/562780] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 01/04/2015] [Accepted: 01/04/2015] [Indexed: 05/31/2023]
Abstract
In this study two solid supports, silica and florisil, were impregnated with crown ether (dibenzo-18-crown-6) and Fe(III) ions and their efficiency was compared in the adsorption process of As(V) from aqueous solutions. The solid supports were impregnated with crown ether due to their ability to build complexes with positives ions. Fe(III) was used because of As(V) affinity for it. The impregnated solid supports were characterized by energy dispersive X-ray analysis, scanning electron microscopy, Fourier transform infrared spectroscopy, and the specific surface area. The influence of the solid : liquid ratio on the adsorption process, kinetic studies for the pseudo-first-order and pseudo-second-order, and activation energy were studied. Thermodynamic studies as well as equilibrium studies were carried out. The obtained results showed that, from the two considered materials, impregnated silica presents a higher efficiency with a good selectivity, able to remove As(V) from aqueous solutions containing trace concentrations.
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Affiliation(s)
- Andreea Gabor
- Faculty of Industrial Chemistry and Environmental Engineering, University Politehnica of Timișoara, Boulevard Vasile Pârvan No. 6, 300223 Timișoara, Romania
| | - Corneliu Mircea Davidescu
- Faculty of Industrial Chemistry and Environmental Engineering, University Politehnica of Timișoara, Boulevard Vasile Pârvan No. 6, 300223 Timișoara, Romania
| | - Adina Negrea
- Faculty of Industrial Chemistry and Environmental Engineering, University Politehnica of Timișoara, Boulevard Vasile Pârvan No. 6, 300223 Timișoara, Romania
| | - Mihaela Ciopec
- Faculty of Industrial Chemistry and Environmental Engineering, University Politehnica of Timișoara, Boulevard Vasile Pârvan No. 6, 300223 Timișoara, Romania
| | - Lavinia Lupa
- Faculty of Industrial Chemistry and Environmental Engineering, University Politehnica of Timișoara, Boulevard Vasile Pârvan No. 6, 300223 Timișoara, Romania
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13
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Saravanan R, Ravikumar L. The Use of New Chemically Modified Cellulose for Heavy Metal Ion Adsorption and Antimicrobial Activities. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/jwarp.2015.76042] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Yi R, Ye G, Lv D, Chen J. Novel thermo-responsive hydrogel microspheres with calixcrown host molecules as cross-links for highly specific binding and controllable release of cesium. RSC Adv 2015. [DOI: 10.1039/c5ra07349a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel thermo-responsive hydrogel microspheres containing calixcrown molecules as covalent cross-links for highly-specific binding and thermo-triggered release of cesium in seawater.
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Affiliation(s)
- Rong Yi
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing 100084
- China
| | - Gang Ye
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing 100084
- China
- Beijing Key Lab of Radioactive Waste Treatment
| | - Dachao Lv
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing 100084
- China
| | - Jing Chen
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing 100084
- China
- Beijing Key Lab of Radioactive Waste Treatment
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15
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Escudero L, Blanchet A, Sombra L, Salonia J, Gasquez J. Determination of the total and extractable fraction of Ni in lake sediments and natural waters of San Luis (Argentina) by FAAS using a simple solid phase extraction system. Microchem J 2014. [DOI: 10.1016/j.microc.2014.04.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Pathak SK, Tripathi SC, Singh KK, Mahtele AK, Kumar M, Gandhi PM. Removal of americium from aqueous nitrate solutions by sorption onto PC88A-impregnated macroporous polymeric beads. JOURNAL OF HAZARDOUS MATERIALS 2014; 278:464-473. [PMID: 24997262 DOI: 10.1016/j.jhazmat.2014.06.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 06/15/2014] [Accepted: 06/16/2014] [Indexed: 06/03/2023]
Abstract
The removal of Am (III) ions from aqueous solutions was studied by solid-liquid extraction using indigenously synthesized Extractant Impregnated Macroporous Polymeric Beads (EIMPBs). These beads were prepared by an in situ phase inversion method using polyethersulfone (PES) as base polymer and 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester (PC88A) as an extractant. The synthesized EIMPBs were characterized by FTIR, TGA and SEM techniques. The batch equilibration study using these beads for the uptake of Am (III) was carried out as a function of parameters, like pH, equilibration time, Am (III) concentration, etc. The blank polymeric beads, without PC88A, have shown negligible sorption of Am (III) under the experimental conditions. The experimental data on the sorption behavior of Am (III) on the polymeric beads fitted well in the pseudo-second-order kinetics model. The synthesized polymeric beads exhibited very good sorption capacity for Am (III) at pH 3. The reusability of the beads was also ascertained by repetitive sorption/desorption of Am (III) up to 10 cycles of operation, without any significant change in their sorption characteristics.
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Affiliation(s)
- S K Pathak
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085 India
| | - S C Tripathi
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085 India.
| | - K K Singh
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India
| | - A K Mahtele
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085 India
| | - Manmohan Kumar
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India
| | - P M Gandhi
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085 India
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17
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Ahmad R, Kumar R, Laskar MA. Adsorptive removal of Pb2+ form aqueous solution by macrocyclic calix[4]naphthalene: kinetic, thermodynamic, and isotherm analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:219-226. [PMID: 22411197 DOI: 10.1007/s11356-012-0838-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Accepted: 02/16/2012] [Indexed: 05/31/2023]
Abstract
BACKGROUND The adsorption characteristics of Pb(2+) ions from aqueous solutions onto calix[4]naphthalene have been investigated. METHOD Calix[4]naphthalene was prepared by the condensation of 1-naphthol and formaldehyde (1:2) in presence of hydrochloric acid at 80 °C. The effect of various operation parameters, such as solution pH, initial metal ion concentration, contact time, and temperature, on the adsorption capacity of calix[4]naphthalene for Pb(2+) have been investigated. RESULT Experimental results showed that the adsorption of Pb(2+) ions increased with the increase in solution pH and temperature. Langmuir and Freundlich isotherms models were used to describe the adsorption behavior of Pb(2+) by calix[4]naphthalene. Equilibrium data fitted well with the Langmuir isotherm model and the maximum adsorption capacity of calix[4]naphthalene for Pb(2+) at 30 °C was found to be 29.15 mg g(-1). Kinetic studies indicated that the adsorption followed pseudo-second order model and the thermodynamic studies revealed that the adsorption process was spontaneous and endothermic in nature. The obtained results demonstrated that calix[4]naphthalene can be used as an effective adsorbent for Pb(2+) ions removal from water.
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Affiliation(s)
- Rais Ahmad
- Environmental Research Laboratory, Department of Applied Chemistry, Aligarh Muslim University, Aligarh 202002, India
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Kumar P, Ansari KB, Gaikar VG. Selective Removal of Silver Impurity from Oxaliplatin by Sorption on Functionalized Polymer. Ind Eng Chem Res 2012. [DOI: 10.1021/ie302085r] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pradipta Kumar
- Department
of Chemical Engineering, Institute of Chemical Technology, Nathalal Parikh Marg, Matunga,
Mumbai-19, India
| | - Khursheed B. Ansari
- Department
of Chemical Engineering, Institute of Chemical Technology, Nathalal Parikh Marg, Matunga,
Mumbai-19, India
| | - Vilas G. Gaikar
- Department
of Chemical Engineering, Institute of Chemical Technology, Nathalal Parikh Marg, Matunga,
Mumbai-19, India
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Dai B, Cao M, Fang G, Liu B, Dong X, Pan M, Wang S. Schiff base-chitosan grafted multiwalled carbon nanotubes as a novel solid-phase extraction adsorbent for determination of heavy metal by ICP-MS. JOURNAL OF HAZARDOUS MATERIALS 2012; 219-220:103-110. [PMID: 22497719 DOI: 10.1016/j.jhazmat.2012.03.065] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 03/20/2012] [Accepted: 03/22/2012] [Indexed: 05/31/2023]
Abstract
A novel Schiff base-chitosan-grafted multiwalled carbon nanotubes (S-CS-MWCNTs) solid-phase extraction adsorbent was synthesized by covalently grafting a Schiff base-chitosan (S-CS) onto the surfaces of oxidized MWCNTs. The adsorbent was characterized by Fourier-transform infrared spectroscopy, transmission electron microscopy, and thermal gravimetric analysis. The results showed that S-CS was successfully grafted onto the surfaces of MWCNTs. A method was developed for the determination of heavy metals, namely V(V), Cr(VI), Cu(II), As(V) and Pb(II) in biological and environmental samples by inductively coupled plasma mass spectrometry coupled with preconcentration with S-CS-MWCNTs. The parameters influencing preconcentration of target ions, such as the pH of the sample solution, the flow rate of sample loading, the eluent concentration, and eluent volume, were investigated and optimized. Under the optimal conditions, the enrichment factors of V(V), Cr(VI), Cu(II), As(V), and Pb(II) reached 111, 95, 60, 52, and 128, respectively, and the detection limits were as low as 1.3-3.8 ng L(-1). The developed method was successfully applied to the determination of trace-metal ions in herring, spinach, river water, and tap water with good recoveries ranging from 91.0% to 105.0%.
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Affiliation(s)
- Bingye Dai
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, China
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Lima GF, Ohara MO, Clausen DN, Nascimento DR, Ribeiro ES, Segatelli MG, Bezerra MA, Tarley CRT. Flow injection on-line minicolumn preconcentration and determination of trace copper ions using an alumina/titanium oxide grafted silica matrix and FAAS. Mikrochim Acta 2012. [DOI: 10.1007/s00604-012-0807-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Xiaowei Z, Naizhong S, Qiong J, Weihong Z. Studies on the Sorption of Cadmium(II), Zinc(II), and Copper(II) with PTFE Selective Resin Containing Primary Amine N1923 and Cyanex923. Ind Eng Chem Res 2011. [DOI: 10.1021/ie101493r] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhao Xiaowei
- College of Chemistry, Jilin University, Changchun 130022, China
| | - Song Naizhong
- College of Chemistry, Jilin University, Changchun 130022, China
| | - Jia Qiong
- College of Chemistry, Jilin University, Changchun 130022, China
| | - Zhou Weihong
- College of Chemistry, Jilin University, Changchun 130022, China
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Rastegarzadeh S, Pourreza N, Kiasat AR, Yahyavi H. Selective solid phase extraction of palladium by adsorption of its 5(p-dimethylaminobenzylidene)rhodanine complex on silica-PEG as a new adsorbent. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0386-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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