Pub Date : 2014-09-05DOI: 10.1080/2164232X.2014.941115
A. Fazary, A. Ramadan
The complexation equilibria of folic acid (FA) and glycine (Gly) were studied in aqueous solutions at room temperature (ca. 298.15 K) and in fixed ionic strength (0.15 mol.dm−3 NaNO3), by means of potentiometry technique. The ferric (Fe3+), ferrous (Fe2+), calcium (Ca2+), and zinc (Zn2+) complex-forming capacities of FA and Gly, and their overall stability constants in aqueous solutions were obtained by applying the potentiometric data in Hyperquad 2008 computer program. From the determined stability constants of the metal complex species, the concentration distribution of the various metal ion complex species involving FA and Gly in solutions was estimated using HySS 2009 software. The complex species distribution diagrams were explained and discussed. Supplementary, the Gibbs free energies and the molecular structures of the formed complexes were evaluated and predicted using Gaussian 09 software molecular modeling and calculations. GRAPHICAL ABSTRACT
{"title":"Stability constants and complex formation equilibria between iron, calcium, and zinc metal ions with vitamin B9 and glycine","authors":"A. Fazary, A. Ramadan","doi":"10.1080/2164232X.2014.941115","DOIUrl":"https://doi.org/10.1080/2164232X.2014.941115","url":null,"abstract":"The complexation equilibria of folic acid (FA) and glycine (Gly) were studied in aqueous solutions at room temperature (ca. 298.15 K) and in fixed ionic strength (0.15 mol.dm−3 NaNO3), by means of potentiometry technique. The ferric (Fe3+), ferrous (Fe2+), calcium (Ca2+), and zinc (Zn2+) complex-forming capacities of FA and Gly, and their overall stability constants in aqueous solutions were obtained by applying the potentiometric data in Hyperquad 2008 computer program. From the determined stability constants of the metal complex species, the concentration distribution of the various metal ion complex species involving FA and Gly in solutions was estimated using HySS 2009 software. The complex species distribution diagrams were explained and discussed. Supplementary, the Gibbs free energies and the molecular structures of the formed complexes were evaluated and predicted using Gaussian 09 software molecular modeling and calculations. GRAPHICAL ABSTRACT","PeriodicalId":10590,"journal":{"name":"Complex Metals","volume":"61 1","pages":"139 - 148"},"PeriodicalIF":0.0,"publicationDate":"2014-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80003498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-03-27DOI: 10.1080/2164232X.2014.889580
Fazlur Rahaman, B. Mruthyunjayaswamy
A new series of transition metal complexes of Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II), with a tridentate (oxygen nitrogen nitrogen) ligand 3,5-dimethyl-N′-[(1E)-1′-pyridin-2′-ylethylidene]-1H-indole-2-carbohydrazide (L) have been synthesized and characterized on the basis of analytical, magnetic susceptibility, infra red, nuclear magnetic resonance, fast atom bombardment-mass, electron paramagnetic resonance spectral studies, X-ray powder diffraction and UV-visible spectral data. Based on analytical and molar conductance data, the complexes may be formulated as [M(L)2]·(H2O)n, where M˭ Co, Cu and Ni and [M(L)Cl2].(H2O)n, where M=Zn, Cd and Hg. The spectral studies revealed that, an octahedral geometry for Co(II), Ni(II) and Cu(II) complexes, whereas square pyramidal geometry for Zn(II), Cd(II) and Hg(II) complexes. The ligand and its Co(II) complex have been characterized by X-ray powder diffraction studies. The ligand and its complexes were tested for their antibacterial activity against Escherichia coli & Staphyloccocus aureus and antifungal activity against Aspergillus niger & Candida albicans.
合成了一系列新的过渡金属配合物Co(II)、Ni(II)、Cu(II)、Zn(II)、Cd(II)和Hg(II)，并以三齿(氧氮氮)配体3,5-二甲基- n ' -[(1E)-1 ' -吡啶-2 ' -乙基乙基]- 1h -吲哚-2-碳酰肼(L)为配体，通过分析、磁化率、红外、核磁共振、快速原子轰击质量、电子顺磁共振光谱、x射线粉末衍射和紫外可见光谱数据对其进行了表征。根据分析和摩尔电导数据，配合物可表示为[M(L)2]·(H2O)n，其中M˭Co、Cu和Ni和[M(L)Cl2].(H2O)n，其中M=Zn、Cd和Hg。光谱研究表明，Co(II)、Ni(II)和Cu(II)配合物为八面体结构，而Zn(II)、Cd(II)和Hg(II)配合物为方锥体结构。该配体及其Co(II)配合物已通过x射线粉末衍射研究进行了表征。检测了该配体及其配合物对大肠杆菌和金黄色葡萄球菌的抑菌活性以及对黑曲霉和白色念珠菌的抑菌活性。
{"title":"Synthesis, spectral characterization and biological activity studies of transition metal complexes of Schiff base ligand containing indole moiety","authors":"Fazlur Rahaman, B. Mruthyunjayaswamy","doi":"10.1080/2164232X.2014.889580","DOIUrl":"https://doi.org/10.1080/2164232X.2014.889580","url":null,"abstract":"A new series of transition metal complexes of Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II), with a tridentate (oxygen nitrogen nitrogen) ligand 3,5-dimethyl-N′-[(1E)-1′-pyridin-2′-ylethylidene]-1H-indole-2-carbohydrazide (L) have been synthesized and characterized on the basis of analytical, magnetic susceptibility, infra red, nuclear magnetic resonance, fast atom bombardment-mass, electron paramagnetic resonance spectral studies, X-ray powder diffraction and UV-visible spectral data. Based on analytical and molar conductance data, the complexes may be formulated as [M(L)2]·(H2O)n, where M˭ Co, Cu and Ni and [M(L)Cl2].(H2O)n, where M=Zn, Cd and Hg. The spectral studies revealed that, an octahedral geometry for Co(II), Ni(II) and Cu(II) complexes, whereas square pyramidal geometry for Zn(II), Cd(II) and Hg(II) complexes. The ligand and its Co(II) complex have been characterized by X-ray powder diffraction studies. The ligand and its complexes were tested for their antibacterial activity against Escherichia coli & Staphyloccocus aureus and antifungal activity against Aspergillus niger & Candida albicans.","PeriodicalId":10590,"journal":{"name":"Complex Metals","volume":"17 1","pages":"88 - 95"},"PeriodicalIF":0.0,"publicationDate":"2014-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82106419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-03-25DOI: 10.1080/2164232X.2014.884939
S. Patil, M. Manjunatha, A. Kulkarni, P. S. Badami
A series of Mn(II), Fe(III) and Zn(II) complexes have been synthesized with Schiff bases derived from isatin and 3-substituted-4-amino-5-mercapto-1,2,4-triazole. The elemental, spectroscopic (Infrared, nuclear magnetic resonance, ultraviolet-visible, fast atom bombardment-mass, fluorescence and electrochemistry) and magnetic studies suggested that the metal complexes possess octahedral geometry. The Schiff bases and their metal complexes exhibit fluorescent properties. The antimicrobial studies of Schiff bases and their metal complexes against various bacterial (Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa and Bacillus subtilis) and fungal (Aspergillus niger, and Penicillium chrysogenum) species by the minimum inhibitory concentration method revealed that the metal complexes possess more healing antibacterial activities than the Schiff bases. DNA cleavage property of Mn(II), Fe(III) and Zn(II) complexes revealed the important role of metal ion in the biological system.
{"title":"Synthesis, characterization, fluorescence and biological studies of Mn(II), Fe(III) and Zn(II) complexes of Schiff bases derived from Isatin and 3-substituted-4-amino-5-mercapto-1,2,4-triazoles","authors":"S. Patil, M. Manjunatha, A. Kulkarni, P. S. Badami","doi":"10.1080/2164232X.2014.884939","DOIUrl":"https://doi.org/10.1080/2164232X.2014.884939","url":null,"abstract":"A series of Mn(II), Fe(III) and Zn(II) complexes have been synthesized with Schiff bases derived from isatin and 3-substituted-4-amino-5-mercapto-1,2,4-triazole. The elemental, spectroscopic (Infrared, nuclear magnetic resonance, ultraviolet-visible, fast atom bombardment-mass, fluorescence and electrochemistry) and magnetic studies suggested that the metal complexes possess octahedral geometry. The Schiff bases and their metal complexes exhibit fluorescent properties. The antimicrobial studies of Schiff bases and their metal complexes against various bacterial (Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa and Bacillus subtilis) and fungal (Aspergillus niger, and Penicillium chrysogenum) species by the minimum inhibitory concentration method revealed that the metal complexes possess more healing antibacterial activities than the Schiff bases. DNA cleavage property of Mn(II), Fe(III) and Zn(II) complexes revealed the important role of metal ion in the biological system.","PeriodicalId":10590,"journal":{"name":"Complex Metals","volume":"29 1","pages":"128 - 137"},"PeriodicalIF":0.0,"publicationDate":"2014-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74447007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-03-18DOI: 10.1080/2164232X.2014.887448
S. Sarkar, B. Das
One mononuclear copper(II) complex, containing neutral tetradentate NSSN-type ligands, of formulation [Cu II(L 1)Cl]ClO 4 (1), was synthesized and isolated in pure form [where L 1˭ 1,3-bis(3-pyridylmethylthio)propane]. Green-colored copper(II) complex was characterized by physicochemical, spectroscopic methods and conductivity measurement. These experimental data matched well with the proposed structure of the complex. Biological activity of the complex (1) toward calf thymus DNA and bovine serum albumin has been examined systematically and groove-binding behavior of the Copper(II) complex 1 with calf thymus DNA has been observed from the spectral study.
{"title":"Synthesis and characterization of mononuclear copper(II) complex of tetradentate N2S2 donor set and the study of DNA and bovine serum albumin binding","authors":"S. Sarkar, B. Das","doi":"10.1080/2164232X.2014.887448","DOIUrl":"https://doi.org/10.1080/2164232X.2014.887448","url":null,"abstract":"One mononuclear copper(II) complex, containing neutral tetradentate NSSN-type ligands, of formulation [Cu II(L 1)Cl]ClO 4 (1), was synthesized and isolated in pure form [where L 1˭ 1,3-bis(3-pyridylmethylthio)propane]. Green-colored copper(II) complex was characterized by physicochemical, spectroscopic methods and conductivity measurement. These experimental data matched well with the proposed structure of the complex. Biological activity of the complex (1) toward calf thymus DNA and bovine serum albumin has been examined systematically and groove-binding behavior of the Copper(II) complex 1 with calf thymus DNA has been observed from the spectral study.","PeriodicalId":10590,"journal":{"name":"Complex Metals","volume":"1 1","pages":"80 - 87"},"PeriodicalIF":0.0,"publicationDate":"2014-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84205432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-03-18DOI: 10.1080/2164232X.2014.886963
R. Aravindhan, T. Sreelatha, P. Perumal, A. Gnanamani
The present study emphasizes synthesis and bioprofiling of embelin, embelin-metal (EM) and embelin-azo-metal (EAM) complexes in detail. EM complexes were prepared using pure embelin and d-block transition elements, namely Mn, Fe, Co, Ni, Cu, and Zn. Similarly, EAM complexes were synthesized using phenyl azo-embelin with the said transition metals. Embelin, EM, and EAM complexes were subjected to ultra violet visible spectroscopy, Fourier transform infrared spectroscopy, nuclear magnetic resonance, electrospray ionization mass spectrometry, thermogravimetric analysis, carbon hydrogen nitrogen sulfur analysis. With regard to bioprofiling, the test complexes were studied for the antioxidant and antimicrobial activities. Results revealed that the prepared EM and EAM complexes form octahedral complexes with embelin with the yield in the range of 45–75%. All the instrumental analyses authenticate the interaction of metals with bidentate embelin through its enolic and quinonic oxygen atoms as [M(Emb)2(H2O)2]H2O and [M(Emb-Azo)2(H2O)2]. The antioxidant profile studies suggested that upon complexation with metals, the free radical scavenging activity of embelin reduced significantly. But, with regard to antimicrobial activity, cobalt and nickel embelin complexes displayed>80% growth inhibition in comparison with embelin alone. The hemolytic activity studies suggested that both embelin and the metal complexes are non-hemolytic. The reason for the reduction in antioxidant and an increase in antimicrobial activities were discussed in detail.
{"title":"Synthesis, characterization and biological profile of metal and azo-metal complexes of embelin","authors":"R. Aravindhan, T. Sreelatha, P. Perumal, A. Gnanamani","doi":"10.1080/2164232X.2014.886963","DOIUrl":"https://doi.org/10.1080/2164232X.2014.886963","url":null,"abstract":"The present study emphasizes synthesis and bioprofiling of embelin, embelin-metal (EM) and embelin-azo-metal (EAM) complexes in detail. EM complexes were prepared using pure embelin and d-block transition elements, namely Mn, Fe, Co, Ni, Cu, and Zn. Similarly, EAM complexes were synthesized using phenyl azo-embelin with the said transition metals. Embelin, EM, and EAM complexes were subjected to ultra violet visible spectroscopy, Fourier transform infrared spectroscopy, nuclear magnetic resonance, electrospray ionization mass spectrometry, thermogravimetric analysis, carbon hydrogen nitrogen sulfur analysis. With regard to bioprofiling, the test complexes were studied for the antioxidant and antimicrobial activities. Results revealed that the prepared EM and EAM complexes form octahedral complexes with embelin with the yield in the range of 45–75%. All the instrumental analyses authenticate the interaction of metals with bidentate embelin through its enolic and quinonic oxygen atoms as [M(Emb)2(H2O)2]H2O and [M(Emb-Azo)2(H2O)2]. The antioxidant profile studies suggested that upon complexation with metals, the free radical scavenging activity of embelin reduced significantly. But, with regard to antimicrobial activity, cobalt and nickel embelin complexes displayed>80% growth inhibition in comparison with embelin alone. The hemolytic activity studies suggested that both embelin and the metal complexes are non-hemolytic. The reason for the reduction in antioxidant and an increase in antimicrobial activities were discussed in detail.","PeriodicalId":10590,"journal":{"name":"Complex Metals","volume":"13 1","pages":"69 - 79"},"PeriodicalIF":0.0,"publicationDate":"2014-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79435621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-03-18DOI: 10.1080/2164232X.2014.899068
D. Harding, Jack Lu
{"title":"Welcome to the inaugural issue of Complex Metals!","authors":"D. Harding, Jack Lu","doi":"10.1080/2164232X.2014.899068","DOIUrl":"https://doi.org/10.1080/2164232X.2014.899068","url":null,"abstract":"","PeriodicalId":10590,"journal":{"name":"Complex Metals","volume":"46 1","pages":"1 - 2"},"PeriodicalIF":0.0,"publicationDate":"2014-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85760951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-03-18DOI: 10.1080/2164232X.2014.889581
A. Debnath, F. Hussain, D. Masram
A novel dinuclear, distorted octahedral complex of nalidixic acid (nal) with Cd(II) metal ion with the formula [Cd2(Nal)2(Phen)2(Cl)2] has been synthesized in the presence of N-containing heterocyclic ligand, 1,10-phenanthroline (phen). The synthesized metal complex was characterized using CHN analysis, Fourier transformed infra-red, thermo gravimetric analysis, differential scanning chalorimetry, nuclear magnetic resonance, ultra violet-visible and single-crystal X-ray diffraction. The newly synthesized complex shows more pronounced antifungal activity compared with the parent quinolone against four fungi, namely Pythium aphanidermatum, Sclerotinia rolfsii, Rhizoctonia solani and Rhizoctonia bataticola.
{"title":"Synthesis, characterization and antifungal studies of metalloquinolone [Cd2(nal)2(phen)2(Cl)2]","authors":"A. Debnath, F. Hussain, D. Masram","doi":"10.1080/2164232X.2014.889581","DOIUrl":"https://doi.org/10.1080/2164232X.2014.889581","url":null,"abstract":"A novel dinuclear, distorted octahedral complex of nalidixic acid (nal) with Cd(II) metal ion with the formula [Cd2(Nal)2(Phen)2(Cl)2] has been synthesized in the presence of N-containing heterocyclic ligand, 1,10-phenanthroline (phen). The synthesized metal complex was characterized using CHN analysis, Fourier transformed infra-red, thermo gravimetric analysis, differential scanning chalorimetry, nuclear magnetic resonance, ultra violet-visible and single-crystal X-ray diffraction. The newly synthesized complex shows more pronounced antifungal activity compared with the parent quinolone against four fungi, namely Pythium aphanidermatum, Sclerotinia rolfsii, Rhizoctonia solani and Rhizoctonia bataticola.","PeriodicalId":10590,"journal":{"name":"Complex Metals","volume":"219 1","pages":"102 - 96"},"PeriodicalIF":0.0,"publicationDate":"2014-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73236309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-03-18DOI: 10.1080/2164232X.2014.891950
Xiang Liu, K. Sohlberg
The application of first-principles calculations to the study of layered perovskites is reviewed here, with an emphasis on properties relevant to the use of these materials in photocatalysis. First, the accuracies of the theoretical methods in common use for the study of layered perovskites are compared. The main body of the article then reviews studies of the bulk atomic and electronic structures of pure and doped perovskites; first-principles thermodynamics studies; studies of surfaces and studies of adsorption on surfaces.
{"title":"Theoretical calculations on layered perovskites: implications for photocatalysis","authors":"Xiang Liu, K. Sohlberg","doi":"10.1080/2164232X.2014.891950","DOIUrl":"https://doi.org/10.1080/2164232X.2014.891950","url":null,"abstract":"The application of first-principles calculations to the study of layered perovskites is reviewed here, with an emphasis on properties relevant to the use of these materials in photocatalysis. First, the accuracies of the theoretical methods in common use for the study of layered perovskites are compared. The main body of the article then reviews studies of the bulk atomic and electronic structures of pure and doped perovskites; first-principles thermodynamics studies; studies of surfaces and studies of adsorption on surfaces.","PeriodicalId":10590,"journal":{"name":"Complex Metals","volume":"109 1","pages":"103 - 121"},"PeriodicalIF":0.0,"publicationDate":"2014-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76288540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-03-18DOI: 10.1080/2164232X.2014.884940
Ismail Abbas, Hasan Shamseddine, H. Hammud
A new calix[4]pyrrole-based macrocycle, meso-tetramethyltetrakis-[4-(2-ethoxy)ethoxyphenyl]calix[4]pyrrole, (2) has been prepared and characterized. The binding ability of (2) for metal cations were investigated by ultraviolet–visible spectrophotometry in acetonitrile at 298.15 K. Stability constant and thermodynamic parameters for 1:1 binding interaction between (2) and Pb(II) cation were measured at different temperatures. Ether calix[4]pyrrole polymer, (4) was also synthesized. Solid-phase extraction of Pb(II) cation by (4) from the aqueous media has been studied using the batch method. Various significant extraction parameters (mass, lead concentration, temperature, and time) have been evaluated. Analysis of equilibrium data shows linear fitting with the Langmuir isotherm. Uptake capacity was found to be 80 mg g−1 at 298.15 K. Kinetic studies show a pseudo-second-order reaction mechanism. The thermodynamic parameters of extractions were also calculated.
{"title":"Diethyl ether-modified calix[4]pyrrole receptor: thermodynamics of lead cation complexation – lead extraction from water by its polymer","authors":"Ismail Abbas, Hasan Shamseddine, H. Hammud","doi":"10.1080/2164232X.2014.884940","DOIUrl":"https://doi.org/10.1080/2164232X.2014.884940","url":null,"abstract":"A new calix[4]pyrrole-based macrocycle, meso-tetramethyltetrakis-[4-(2-ethoxy)ethoxyphenyl]calix[4]pyrrole, (2) has been prepared and characterized. The binding ability of (2) for metal cations were investigated by ultraviolet–visible spectrophotometry in acetonitrile at 298.15 K. Stability constant and thermodynamic parameters for 1:1 binding interaction between (2) and Pb(II) cation were measured at different temperatures. Ether calix[4]pyrrole polymer, (4) was also synthesized. Solid-phase extraction of Pb(II) cation by (4) from the aqueous media has been studied using the batch method. Various significant extraction parameters (mass, lead concentration, temperature, and time) have been evaluated. Analysis of equilibrium data shows linear fitting with the Langmuir isotherm. Uptake capacity was found to be 80 mg g−1 at 298.15 K. Kinetic studies show a pseudo-second-order reaction mechanism. The thermodynamic parameters of extractions were also calculated.","PeriodicalId":10590,"journal":{"name":"Complex Metals","volume":"26 1","pages":"57 - 68"},"PeriodicalIF":0.0,"publicationDate":"2014-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84218969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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