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Hoang VA, Nishihama S, Yoshizuka K. Selective adsorption of lead(II) from aqueous solution. Environ Technol 2022; 43:2124-2134. [PMID: 33332236 DOI: 10.1080/09593330.2020.1866088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
Adsorptive separation of Pb(II) from aqueous solution containing Pb(II) and other heavy metals (Cu(II), Zn(II) and Cd(II)) has been investigated, using three adsorbents, such as an iminodiacetic acid-chelating resin (CR11) and Fe-based adsorbents (goethite and magnetite). Batchwise adsorption of Pb(II) and other metal ions in single metal system and multi-components system was carried out with varying parameters, such as pH, time and initial concentrations of metals. CR11 possesses the highest adsorption ability for these metals, while the selectivity of individual metal is little. Goethite possesses selectivity for Pb(II) and Cu(II), and magnetite possesses selectivity for Pb(II), though the adsorption capacity for the metals is less than those with CR11. The kinetics of the adsorption of metals with all adsorbents is of pseudo-second-order, and the magnetite is revealed to have the fastest adsorption kinetics. The three adsorbents can be applied for chromatographic separation for these metals. The magnetite is feasible for selective separation of Pb(II), although complete elution cannot be achieved.
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Affiliation(s)
- Viet Anh Hoang
- Department of Chemical Engineering, Faculty of Environmental Engineering, The University of Kitakyushu, Kitakyushu, Japan
| | - Syouhei Nishihama
- Department of Chemical Engineering, Faculty of Environmental Engineering, The University of Kitakyushu, Kitakyushu, Japan
| | - Kazuharu Yoshizuka
- Department of Chemical Engineering, Faculty of Environmental Engineering, The University of Kitakyushu, Kitakyushu, Japan
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Ng SW. Resolvable polymorphism in an intergrowth of two modifications of tris(diethyldithiocarbamato)antimony. Acta Crystallogr C Struct Chem 2021; 77:610-614. [PMID: 34607983 DOI: 10.1107/s205322962100886x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 08/24/2021] [Indexed: 12/28/2022]
Abstract
Tris(diethyldithiocarbamato-κS)antimony(III), [Sb(C5H10NS2)3], is tentatively presumed to comprise a triclinic and a monoclinic polymorph intergrown into each other. The geometry in the triclinic phase is a ψ-capped octahedron and that in the monoclinic phase is a ψ-pentagonal bipyramid. The study also identifies the polyhedral symbols for a reported pair of polymorphs of another SbIII coordination compound, as well as for those of published polymorphic modifications of other BiIII and PbII coordination compounds; the symbols in the pair differ in most of these examples. When differentiating related structures of such classes of coordination compounds, lone-pair stereochemistry may be another informative variable, as stereochemical activity is not always apparent from bond distances and angles only.
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Wang W, Liu X, Wang X, Zong L, Kang Y, Wang A. Fast and Highly Efficient Adsorption Removal of Toxic Pb(II) by a Reusable Porous Semi-IPN Hydrogel Based on Alginate and Poly(Vinyl Alcohol). Front Chem 2021; 9:662482. [PMID: 34395376 PMCID: PMC8355593 DOI: 10.3389/fchem.2021.662482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 07/19/2021] [Indexed: 11/13/2022] Open
Abstract
A porous semi-interpenetrating network (semi-IPN) hydrogel adsorbent with excellent adsorption properties and removal efficiency towards Pb(II) was prepared by a facile grafting polymerization reaction in aqueous medium using natural biopolymer sodium alginate (SA) as the main chains, sodium acrylate (NaA) as the monomers, and poly(vinyl alcohol) (PVA) as the semi-IPN component. FTIR, TGA and SEM analyses confirm that NaA monomers were grafted onto the macromolecular chains of SA, and PVA chains were interpenetrated and entangled with the crosslinked network. The incorporation of PVA facilitates to form pores on the surface of hydrogel adsorbent. The semi-IPN hydrogel containing 2 wt% of PVA exhibits high adsorption capacity and fast adsorption rate for Pb(II). The best adsorption capacity reaches 784.97 mg/g, and the optimal removal rate reaches 98.39% (adsorbent dosage, 2 g/L). In addition, the incorporation of PVA improved the gel strength of hydrogel, and the storage modulus of hydrogel increased by 19.4% after incorporating 2 wt% of PVA. The increase of gel strength facilitates to improve the reusability of hydrogel. After 5 times of regeneration, the adsorption capacity of SA-g-PNaA decreased by 23.2%, while the adsorption capacity of semi-IPN hydrogel only decreased by 10.8%. The adsorption kinetics of the hydrogel in the initial stage (the moment when the adsorbent contacts solution) and the second stage are fitted by segmentation. It is intriguing that the adsorption kinetics fits well with both pseudo-second-order kinetic model and pseudo-first-order model before 60 s, while only fits well with pseudo-second-order adsorption model in the whole adsorption process. The chemical complexing adsorption mainly contribute to the efficient capturing of Pb(II).
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Affiliation(s)
- Wenbo Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, China
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Xiangyu Liu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, China
| | - Xue Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, China
| | - Li Zong
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Yuru Kang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Aiqin Wang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
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Issarangkura Na Ayutthaya P, Yeerum C, Kesonkan K, Kiwfo K, Grudpan K, Teshima N, Murakami H, Vongboot M. Determination of Lead Employing Simple Flow Injection AAS with Monolithic Alginate-Polyurethane Composite Packed In-Valve Column. Molecules 2021; 26:4397. [PMID: 34361553 DOI: 10.3390/molecules26154397] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 11/30/2022] Open
Abstract
A simple flow injection FlameAAS for lead determination with an alginate-polyurethane composite (ALG-PUC) monolithic in-valve column has been developed. The ALG-PUC monolithic rod was prepared by mixing methylene diphenyl diisocyanate with polyol and sodium alginate with the ratio of 2:1:1 by weight for a 5 min polymerization reaction. It was then put into a column (0.8 cm i.d × 11 cm length) situated in a switching valve for the FI set up. A single standard calibration could be obtained by plotting the loaded µg Pb2+ vs. FI response (absorbances). The loaded µg Pb2+ is calculated: μg Pb2+ = FRload × LT × CPb2+, where the FR load is the flow rate of the loading analyte solution (mL min−1), LT is the loading time (min), and CPb2+ is the Pb2+ concentration (µg mL−1). A linear calibration equation was obtained: FI response (absorbances) = 0.0018 [µg Pb2+] + 0.0032, R2 = 0.9927 for 1–150 µg Pb2+, and RSD of less than 20% was also obtained. Application of the developed procedure has been demonstrated in real samples.
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Liang J, Gvilava V, Jansen C, Öztürk S, Spieß A, Lin J, Xing S, Sun Y, Wang H, Janiak C. Cucurbituril-Encapsulating Metal-Organic Framework via Mechanochemistry: Adsorbents with Enhanced Performance. Angew Chem Int Ed Engl 2021; 60:15365-15370. [PMID: 33974329 PMCID: PMC8362037 DOI: 10.1002/anie.202100675] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/24/2021] [Indexed: 12/25/2022]
Abstract
The first examples of monolithic crystalline host-guest hybrid materials are described. The reaction of 1,3,5-benzenetricarboxylic acid (H3 BTC) and Fe(NO3 )3 ⋅9 H2 O in the presence of decamethylcucurbit[5]uril ammonium chloride (MC5⋅2 NH4 Cl⋅4 H2 O) directly affords MC5@MIL-100(Fe) hybrid monoliths featuring hierarchical micro-, meso- and macropores. Particularly, this "bottle-around-ship" synthesis and one-pot shaping are facilitated by a newly discovered Fe-MC5 flowing gel formed by mechanochemistry. The designed MC5@MIL-100(Fe) hybrid material with MC5 as active domains shows enhanced CH4 and lead(II) uptake performance, and selective capture of lead(II) cations at low concentrations. This shows that host-guest hybrid materials can exhibit synergic properties that out-perform materials based on individual components.
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Affiliation(s)
- Jun Liang
- Hoffmann Institute of Advanced MaterialsShenzhen Polytechnic7098 Liuxian Blvd, Nanshan DistrictShenzhen518055China
- Institut für Anorganische Chemie und StrukturchemieHeinrich-Heine-Universität Düsseldorf40204DüsseldorfGermany
| | - Vasily Gvilava
- Institut für Anorganische Chemie und StrukturchemieHeinrich-Heine-Universität Düsseldorf40204DüsseldorfGermany
| | - Christian Jansen
- Institut für Anorganische Chemie und StrukturchemieHeinrich-Heine-Universität Düsseldorf40204DüsseldorfGermany
| | - Secil Öztürk
- Institut für Anorganische Chemie und StrukturchemieHeinrich-Heine-Universität Düsseldorf40204DüsseldorfGermany
| | - Alex Spieß
- Institut für Anorganische Chemie und StrukturchemieHeinrich-Heine-Universität Düsseldorf40204DüsseldorfGermany
| | - Jingxiang Lin
- The School of Ocean Science and Biochemistry EngineeringFuqing Branch of Fujian Normal UniversityFuqing350300China
| | - Shanghua Xing
- Hoffmann Institute of Advanced MaterialsShenzhen Polytechnic7098 Liuxian Blvd, Nanshan DistrictShenzhen518055China
- Institut für Anorganische Chemie und StrukturchemieHeinrich-Heine-Universität Düsseldorf40204DüsseldorfGermany
| | - Yangyang Sun
- Institut für Anorganische Chemie und StrukturchemieHeinrich-Heine-Universität Düsseldorf40204DüsseldorfGermany
| | - Hao Wang
- Hoffmann Institute of Advanced MaterialsShenzhen Polytechnic7098 Liuxian Blvd, Nanshan DistrictShenzhen518055China
| | - Christoph Janiak
- Hoffmann Institute of Advanced MaterialsShenzhen Polytechnic7098 Liuxian Blvd, Nanshan DistrictShenzhen518055China
- Institut für Anorganische Chemie und StrukturchemieHeinrich-Heine-Universität Düsseldorf40204DüsseldorfGermany
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Tanui HK, Hussein AA, Luckay RC. Selective removal of iron(III), lead(II) and copper(II) ions by polar crude phytochemicals recovered from ten South African plants: identification of plant phytochemicals. Int J Phytoremediation 2020; 23:755-764. [PMID: 33290091 DOI: 10.1080/15226514.2020.1857332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This work consists of gathering the leaves of ten different South African plants from the local reserve. Black and green tea were sourced commercially. The plants were air dried and polar crude material extracted using deionized water. These crude phytochemicals were used as green chelators to remove metal ions from an aqueous solution. Iron(III), lead(II) and copper(II) ions were competitively removed from an eight metal ion solution with iron(III) being removed at more than 80% followed by lead(II) with greater than 40% removal and copper(II) with removal values of more than 20%. Metal ion removal was shown to be affected by change in pH of the solution, indicating that removal took place via the pH-swing mechanism. As the pH is increased, iron(III) is first removed followed by lead(II) and then copper(II). Iron(III) and lead(II) were selectively removed even at a 10-fold dilution level compared to the other metal ions present. Loading tests showed that iron(III) removal does not change, but for lead(II) and copper(II) there is a noticeable increase in removal with an increase in the amount of crude. The phytochemicals in the crude were identified using Liquid chromatography-tandem mass spectrometry (LC-MS/MS). Some crudes had similar phytochemicals (quercetin) while others had unique compounds. Statement of novelty It is the first time that crude polar phytochemicals from South African plants are used as green chelators. These green chelators selectively remove iron(III), lead(II) and copper(II) from a mix of eight different base metal ions. Iron(III) can be selectively removed at pH as low as 3.00 and, when iron(III) and lead(II) are 10 times more dilute compared to the other metal ions, iron(III) and lead(II) are still selectively removed. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) is used to identify some of the phytochemicals present in these plants.
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Affiliation(s)
- Hillary K Tanui
- Department of Chemistry and Polymer Science, Stellenbosch University, Matieland, Stellenbosch, South Africa
| | - Ahmed A Hussein
- Chemistry Department, Cape Peninsula University of Technology, Bellville, South Africa
| | - Robert C Luckay
- Department of Chemistry and Polymer Science, Stellenbosch University, Matieland, Stellenbosch, South Africa
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Habila MA, AlMasoud N, Alomar TS, AlOthman ZA, Yilmaz E, Soylak M. Deep Eutectic Solvent-Based Microextraction of Lead(II) Traces from Water and Aqueous Extracts before FAAS Measurements. Molecules 2020; 25:molecules25204794. [PMID: 33086622 PMCID: PMC7587555 DOI: 10.3390/molecules25204794] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/12/2020] [Accepted: 10/12/2020] [Indexed: 01/01/2023] Open
Abstract
Microextraction procedures for the separation of Pb(II) from water and food samples extracts were developed. A deep eutectic solvent composed of α-benzoin oxime and iron(III) chloride dissolved in phenol was applied as a phase separator support. In addition, this deep eutectic mixture worked as an efficient extractor of Pb(II). The developed microextraction process showed a high ability to tolerate the common coexisting ions in the real samples. The optimum conditions for quantitative recoveries of Pb(II) from aqueous extracts were at pH 2.0, conducted by adding 150 µL from the deep eutectic solvent. The quantitative recoveries were obtained with various initial sample volumes up to 30 mL. Limits of detection and limits of quantification of 0.008 and 0.025 µg L-1 were achieved with a relative standard deviation (RSD%) of 2.9, which indicates the accuracy and sensitivity of the developed procedure. Recoveries from the reference materials, including TMDA 64.2, TMDA 53.3, and NCSDC-73349, were 100%, 97%, and 102%, respectively. Real samples, such as tap, lake, and river water, as well as food samples, including salted peanuts, chickpeas, roasted yellow corn, pistachios, and almonds, were successfully applied for Pb(II) analysis by atomic absorption spectroscopy (AAS) after applying the developed deep eutectic solvent-based microextraction procedures.
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Affiliation(s)
- Mohamed A Habila
- Advanced Materials Research Chair, Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Najla AlMasoud
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Taghrid S Alomar
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Zeid A AlOthman
- Advanced Materials Research Chair, Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Erkan Yilmaz
- Department of Analytical Chemistry, Faculty of Pharmacy, Erciyes University, 38039 Kayseri, Turkey
- Nanotechnology Research and Application Center (ERNAM), Erciyes University, 38039 Kayseri, Turkey
| | - Mustafa Soylak
- Department of Chemistry, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
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Mahmoudi G, Abedi M, Lawrence SE, Zangrando E, Babashkina MG, Klein A, Frontera A, Safin DA. Tetrel Bonding and Other Non-Covalent Interactions Assisted Supramolecular Aggregation in a New Pb(II) Complex of an Isonicotinohydrazide. Molecules 2020; 25:molecules25184056. [PMID: 32899863 PMCID: PMC7571010 DOI: 10.3390/molecules25184056] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 12/31/2022] Open
Abstract
A new supramolecular Pb(II) complex [PbL(NO2)]n was synthesized from Pb(NO3)2, N’-(1-(pyridin-2-yl)ethylidene)isonicotinohydrazide (HL) and NaNO2. [PbL(NO2)]n is constructed from discrete [PbL(NO2)] units with an almost ideal N2O3 square pyramidal coordination environment around Pb(II). The ligand L− is coordinated through the 2-pyridyl N-atom, one aza N-atom, and the carbonyl O-atom. The nitrite ligand binds in a κ2-O,O coordination mode through both O-atoms. The Pb(II) center exhibits a hemidirected coordination geometry with a pronounced coordination gap, which allows a close approach of two additional N-atoms arising from the N=C(O) N-atom of an adjacent molecule and from the 4-pyridyl N-atom from the another adjacent molecule, yielding a N4O3 coordination, constructed from two Pb–N and three Pb–O covalent bonds, and two Pb⋯N tetrel bonds. Dimeric units in the structure of [PbL(NO2)]n are formed by the Pb⋯N=C(O) tetrel bonds and intermolecular electrostatically enforced π+⋯π− stacking interactions between the 2- and 4-pyridyl rings and further stabilized by C–H⋯π intermolecular interactions, formed by one of the methyl H-atoms and the 4-pyridyl ring. These dimers are embedded in a 2D network representing a simplified uninodal 3-connected fes (Shubnikov plane net) topology defined by the point symbol (4∙82). The Hirshfeld surface analysis of [PbL(NO2)] revealed that the intermolecular H⋯X (X = H, C, N, O) contacts occupy an overwhelming majority of the molecular surface of the [PbL(NO2)] coordination unit. Furthermore, the structure is characterized by intermolecular C⋯C and C⋯N interactions, corresponding to the intermolecular π⋯π stacking interactions. Notably, intermolecular Pb⋯N and, most interestingly, Pb⋯H interactions are remarkable contributors to the molecular surface of [PbL(NO2)]. While the former contacts are due to the Pb⋯N tetrel bonds, the latter contacts are mainly due to the interaction with the methyl H-atoms in the π⋯π stacked [PbL(NO2)] molecules. Molecular electrostatic potential (MEP) surface calculations showed marked electrostatic contributions to both the Pb⋯N tetrel bonds and the dimer forming π+⋯π− stacking interactions. Quantum theory of atoms in molecules (QTAIM) analyses underlined the tetrel bonding character of the Pb⋯N interactions. The manifold non-covalent interactions found in this supramolecular assembly are the result of the proper combination of the polyfunctional multidentate pyridine-hydrazide ligand and the small nitrito auxiliary ligand.
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Affiliation(s)
- Ghodrat Mahmoudi
- Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh P.O. Box 55181-83111, Iran
- Correspondence: (G.M.); (A.K.); (D.A.S.)
| | - Marjan Abedi
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil P.O. Box 56199-11367, Iran;
| | - Simon E. Lawrence
- School of Chemistry, Analytical and Biological Chemistry Research Facility, Synthesis and Solid State Pharmaceutical Centre, University College Cork, College Road, T12 K8AF Cork, Ireland;
| | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy;
| | - Maria G. Babashkina
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln, Greinstraße 6, D-50939 Köln, Germany;
| | - Axel Klein
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln, Greinstraße 6, D-50939 Köln, Germany;
- Correspondence: (G.M.); (A.K.); (D.A.S.)
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crta de Valldemossa km 5.7, 7122 Palma de Mallorca Baleares, Spain;
| | - Damir A. Safin
- Institute of Chemistry, University of Tyumen, Volodarskogo Str. 6, 625003 Tyumen, Russia
- West-Siberian Interregional Scientific and Educational Center, 625003 Tyumen, Russia
- Innovation Center for Chemical and Pharmaceutical Technologies, Ural Federal University named after the First President of Russia B.N. Eltsin, Mira Str. 19, 620002 Ekaterinburg, Russia
- Correspondence: (G.M.); (A.K.); (D.A.S.)
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Xiong C, Wang S, Hu P, Huang L, Xue C, Yang Z, Zhou X, Wang Y, Ji H. Efficient Selective Removal of Pb(II) by Using 6-Aminothiouracil-Modified Zr-Based Organic Frameworks: From Experiments to Mechanisms. ACS Appl Mater Interfaces 2020; 12:7162-7178. [PMID: 31942788 DOI: 10.1021/acsami.9b19516] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We report an efficient, reusable, and selective 6-aminothiouracil (ATA)-modified Zr(IV)-based adsorbent (defined as UiO-66-ATA(Zr)) for lead ion removal in water. The adsorption equilibrium time and the maximum sorption capacity of UiO-66-ATA(Zr) for Pb(II) are, respectively, 120 min and 386.98 mg/g at pH 4 and 298 K. The Pb(II) removal rate reaches 96% at 60 min and exceeds 99% at the equilibrium state in the pH range of 2.0-5.8. Hill and pseudo-second-order models can well describe the sorption process. Pb(II) adsorbing onto UiO-66-ATA(Zr) is an irreversible, favorable chemisorption process with multimolecule participation and film diffusion control. The calculations of density functional theory, the experimental results, and the characterization analyses suggest that the binding mechanisms are the chelation and ion-exchange/electrostatic interactions between hydroxyl/amino/sulfhydryl groups of UiO-66-ATA(Zr) and Pb(II). Besides, UiO-66-ATA(Zr) has a better affinity to Pb(II) than the coexisting ions in water and an excellent repeatability at eight cycles of adsorption. Moreover, the thermodynamic study shows that UiO-66-ATA(Zr) adsorbing Pb(II) is an endothermic reaction. Thus, UiO-66-ATA(Zr) is a prospective sorbent for Pb(II) removal under the initiative of environmental protection and water purification, and this work may also provide an idea for industrial catalysis.
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Affiliation(s)
- Chao Xiong
- Fine Chemical Industry Research Institute, School of Chemistry , Sun Yat-Sen University , Guangzhou 510275 , P. R. China
| | - Shixing Wang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Metallurgical and Energy Engineering , Kunming University of Science and Technology , Kunming , Yunnan 650093 , P. R. China
| | - Peng Hu
- Fine Chemical Industry Research Institute, School of Chemistry , Sun Yat-Sen University , Guangzhou 510275 , P. R. China
| | - Liyun Huang
- Fine Chemical Industry Research Institute, School of Chemistry , Sun Yat-Sen University , Guangzhou 510275 , P. R. China
| | - Can Xue
- School of Chemical Engineering and Technology , Sun Yat-Sen University , Zhuhai 519082 , P. R. China
| | - Zujin Yang
- School of Chemical Engineering and Technology , Sun Yat-Sen University , Zhuhai 519082 , P. R. China
| | - Xiantai Zhou
- School of Chemical Engineering and Technology , Sun Yat-Sen University , Zhuhai 519082 , P. R. China
| | - Yongqing Wang
- Fine Chemical Industry Research Institute, School of Chemistry , Sun Yat-Sen University , Guangzhou 510275 , P. R. China
| | - Hongbing Ji
- Fine Chemical Industry Research Institute, School of Chemistry , Sun Yat-Sen University , Guangzhou 510275 , P. R. China
- School of Chemical Engineering and Technology , Sun Yat-Sen University , Zhuhai 519082 , P. R. China
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10
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Tayade SB, Markad D, Kumbhar AS, Erxleben A, Chakravarty D. Coordination polymers of Cd II and Pb II derived from bipyridine-glycoluril: influence of metal-ion size and counter-ions. Acta Crystallogr C Struct Chem 2019; 75:1084-1090. [PMID: 31380791 DOI: 10.1107/s2053229619008325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 06/12/2019] [Indexed: 01/29/2023]
Abstract
Two new one-dimensional (1D) coordination polymers (CPs), namely catena-poly[[[aquacadmium(II)]-bis(μ-4b,5,7,7a-tetrahydro-4b,7a-epiminomethanoimino-6H-imidazo[4,5-f][1,10]phenanthroline-6,13-dione)] bis(perchlorate) dihydrate], {[Cd(C14H10N6O2)2(H2O)](ClO4)2·2H2O}n or {[Cd(BPG)2(H2O)](ClO4)2·2H2O}n, 1, and catena-poly[[lead(II)-bis(μ-4b,5,7,7a-tetrahydro-4b,7a-epiminomethanoimino-6H-imidazo[4,5-f][1,10]phenanthroline-6,13-dione)] bis(perchlorate) dihydrate], {[Pb(C14H10N6O2)2](ClO4)2·2H2O}n or {[Pb(BPG)2](ClO4)2·2H2O}n, 2, have been synthesized using bipyridine-glycoluril (BPG; systematic name: 4b,5,7,7a-tetrahydro-4b,7a-epiminomethanoimino-6H-imidazo[4,5-f][1,10]phenanthroline-6,13-dione), a urea-fused tecton, in a mixed-solvent system. The CdII ion in 1 is heptacoordinated and the PbII ion in 2 is hexacoordinated, with the CdII ion adopting a pentagonal bipyramidal geometry and the PbII ion adopting a distorted octahedral geometry. Both CPs form infinite linear chain structures which are hydrogen bonded to each other leading to the formation of three-dimensional supramolecular network structures. Topological analysis of CPs 1 and 2 reveals that the structures exhibit 1D chain-like arrangements in an AB-AB sequence and shows platonic uniform 2-connected uninodal topologies. Furthermore, a comparative analysis of a series of structures based on the BPG ligand indicates that the size of the metal ion and the types of counter-ions used have a great influence on the resulting frameworks and properties.
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Affiliation(s)
- Sakharam B Tayade
- Department of Chemistry, Savitribai Phule Pune University, Ganeshkhind, Pune, Maharashtra 411 007, India
| | - Datta Markad
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, Manauli PO, S.A.S. Nagar, Mohali, Punjab 140 306, India
| | - Avinash S Kumbhar
- Department of Chemistry, Savitribai Phule Pune University, Ganeshkhind, Pune, Maharashtra 411 007, India
| | - Andrea Erxleben
- School of Chemistry, National University of Ireland (NUI), Galway, Ireland
| | - Debamitra Chakravarty
- Central Instrumentation Facility, Savitribai Phule Pune University, Ganeshkhind, Pune, Maharashtra 411 007, India
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11
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Lo M, Diaw AKD, Gningue-Sall D, Oturan MA, Chehimi MM, Aaron JJ. A novel fluorescent sensor based on electrosynthesized benzene sulfonic acid-doped polypyrrole for determination of Pb(II) and Cu(II). LUMINESCENCE 2019; 34:489-499. [PMID: 30972923 DOI: 10.1002/bio.3626] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 12/17/2018] [Accepted: 02/08/2019] [Indexed: 01/22/2023]
Abstract
To develop conducting organic polymers (COPs) as luminescent sensors for determination of toxic heavy metals, a new benzene sulfonic acid-doped polypyrrole (PPy-BSA) thin film was electrochemically prepared by cyclic voltammetry (CV) on flexible indium tin oxide (ITO) electrode in aqueous solution. PPy-BSA film was characterized by FTIR spectrometry, X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The optical properties of PPy-BSA were investigated by ultraviolet (UV)-visible absorption and fluorescence spectrometry in dimethylsulfoxide (DMSO) diluted solutions. PPy-BSA fluorescence spectra were strongly quenched upon increasing copper(II) ion (Cu2+ ) and lead(II) ion (Pb2+ ) concentrations in aqueous medium, and linear Stern-Volmer relationships were obtained, which indicated the existence of a main dynamic fluorescence quenching mechanism. BSA-PPy sensor showed a high sensitivity for detection of both metallic ions, Cu2+ and Pb2+ , with very low limit of detection values of 3.1 and 18.0 nM, respectively. The proposed quenching-fluorimetric sensor might be applied to the determination of traces of toxic heavy metallic ions in water samples.
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Affiliation(s)
- Momath Lo
- Faculté des Sciences, Université Cheikh Anta Diop, Dakar-Fann, Sénégal.,Laboratoire Géomatériaux et Environnement, Université Paris-Est, Marne-la-Vallée Cedex 2, France.,CNRS, ICMPE (UMR 7182), Université Paris Est, Thiais, France
| | - Abdou K D Diaw
- Faculté des Sciences, Université Cheikh Anta Diop, Dakar-Fann, Sénégal
| | | | - Mehmet A Oturan
- Laboratoire Géomatériaux et Environnement, Université Paris-Est, Marne-la-Vallée Cedex 2, France
| | | | - Jean-Jacques Aaron
- Laboratoire Géomatériaux et Environnement, Université Paris-Est, Marne-la-Vallée Cedex 2, France
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12
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Radzyminska-Lenarcik E, Witt K. Sorption of Cu(II), Zn(II) and Pb(II) Ions in an Aqueous Solution on the PVC-Acetylacetone Composites. Polymers (Basel) 2019; 11:E513. [PMID: 30960497 DOI: 10.3390/polym11030513] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/11/2019] [Accepted: 03/11/2019] [Indexed: 11/30/2022] Open
Abstract
The possibility of removing Cu(II), Zn(II) and Pb(II) ions by sorption on new PVC-based composite materials with different contents of acetylacetone (acac) and porophor was investigated. Composites were characterized using a scanning electron microscope and by infrared spectral analysis (FTIR). Sorption tests were conducted at 20 °C. It has been shown that the equilibrium is established in about 4 h. The reduction in ion concentration in the solution depended on the content of both acac and porophor in the composite. The maximal reduction in ion concentration ranged from 8% to 91%, 10–85% and 6–50% for Cu(II), Zn(II) and Pb(II) ions, respectively, depending on the composite composition. The best results were obtained for the composite containing 30% w/w of acac and 10% of porophor. For this composite, the sorption capacity after 4 h sorption for Zn(II), Cu(II) and Pb(II) ions was 26.65, 25.40, and 49.68 mg/g, respectively. Kinetic data were best fitted with a pseudo–second-order equation.
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13
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Cheng L, Cao Y. A two-dimensional organic-inorganic hybrid perovskite-type semiconductor: poly[(2-azaniumylethyl)trimethylphosphanium [tetra-μ-bromido-plumbate(II)]]. Acta Crystallogr C Struct Chem 2019; 75:354-358. [PMID: 30833532 DOI: 10.1107/s2053229619001712] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 01/30/2019] [Indexed: 11/10/2022]
Abstract
Recently, with the prevalence of `perovskite fever', organic-inorganic hybrid perovskites (OHPs) have attracted intense attention due to their remarkable structural variability and highly tunable properties. In particular, the optical and electrical properties of organic-inorganic hybrid lead halides are typical of the OHP family. Besides, although three-dimensional hybrid perovskites, such as [CH3NH3]PbX3 (X = Cl, Br or I), have been reported, the development of new organic-inorganic hybrid semiconductors is still an area in urgent need of exploration. Here, an organic-inorganic hybrid lead halide perovskite is reported, namely poly[(2-azaniumylethyl)trimethylphosphanium [tetra-μ-bromido-plumbate(II)]], {(C5H16NP)[PbBr4]}n, in which an organic cation is embedded in inorganic two-dimensional (2D) mesh layers to produce a sandwich structure. This unique sandwich 2D hybrid perovskite material shows an indirect band gap of ∼2.700 eV. The properties of this compound as a semiconductor are demonstrated by a series of optical characterizations and indicate potential applications for optical devices.
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Affiliation(s)
- Ling Cheng
- College of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, People's Republic of China
| | - Yingjie Cao
- College of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, People's Republic of China
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14
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Jin Y, Wang X, Zang T, Hu Y, Hu X, Ren G, Xu X, Qu J. Biosorption of Lead(II) by Arthrobacter sp. 25: Process Optimization and Mechanism. J Microbiol Biotechnol 2017; 26:1428-38. [PMID: 27197671 DOI: 10.4014/jmb.1603.03074] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
In the present work, Arthrobacter sp. 25, a lead-tolerant bacterium, was assayed to remove lead(II) from aqueous solution. The biosorption process was optimized by response surface methodology (RSM) based on the Box-Behnken design. The relationships between dependent and independent variables were quantitatively determined by second-order polynomial equation and 3D response surface plots. The biosorption mechanism was explored by characterization of the biosorbent before and after biosorption using atomic force microscopy (AFM), scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction, and Fourier transform infrared spectroscopy. The results showed that the maximum adsorption capacity of 9.6 mg/g was obtained at the initial lead ion concentration of 108.79 mg/l, pH value of 5.75, and biosorbent dosage of 9.9 g/l (fresh weight), which was close to the theoretically expected value of 9.88 mg/g. Arthrobacter sp. 25 is an ellipsoidalshaped bacterium covered with extracellular polymeric substances. The biosorption mechanism involved physical adsorption and microprecipitation as well as ion exchange, and functional groups such as phosphoryl, hydroxyl, amino, amide, carbonyl, and phosphate groups played vital roles in adsorption. The results indicate that Arthrobacter sp. 25 may be potentially used as a biosorbent for low-concentration lead(II) removal from wastewater.
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Affiliation(s)
- Yu Jin
- College of Resource and Environment, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Xin Wang
- College of Resource and Environment, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Tingting Zang
- College of Resource and Environment, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Yang Hu
- College of Resource and Environment, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Xiaojing Hu
- College of Resource and Environment, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Guangming Ren
- College of Resource and Environment, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Xiuhong Xu
- College of Resource and Environment, Northeast Agricultural University, Harbin 150030, P.R. China
| | - Juanjuan Qu
- College of Resource and Environment, Northeast Agricultural University, Harbin 150030, P.R. China
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15
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Geiger DK, Parsons DE, Zick PL. Crystal structures of three lead(II) acetate-bridged di-amino-benzene coordination polymers. Acta Crystallogr Sect E Struct Rep Online 2014; 70:566-72. [PMID: 25552994 PMCID: PMC4257386 DOI: 10.1107/s1600536814025380] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 11/19/2014] [Indexed: 11/11/2022]
Abstract
The structures of three lead(II) coordination polymers are reported. One exhibits a two-dimensional structure, whereas the other two are one-dimensional. All three exhibit bidentate bridging acetate and monodentate benzene-1,2-diamine ligands. The extended structures reveal extensive hydrogen-bonding networks involving the diamine and acetate ligands. Poly[tris(acetato-κ2O,O′)(μ2-acetato-κ3O,O′:O)tetrakis(μ3-acetato-κ4O,O′:O:O′)bis(benzene-1,2-diamine-κN)tetralead(II)], [Pb4(CH3COO)8(C6H8N2)2]n, (I), poly[(acetato-κ2O,O′)(μ3-acetato-κ4O,O′:O:O′)(4-chlorobenzene-1,2-diamine-κN)lead(II)], [Pb(CH3COO)2(C6H7ClN2)]n, (II), and poly[(κ2O,O′)(μ3-acetato-κ4O,O′:O:O′)(3,4-diaminobenzonitrile-κN)lead(II)], [Pb(CH3COO)2(C7H7N3)]n, (III), have polymeric structures in which monomeric units are joined by bridging acetate ligands. All of the PbII ions exhibit hemidirected coordination. The repeating unit in (I) is composed of four PbII ions having O6, O6N, O7 and O6N coordination spheres, respectively, where N represents a monodentate benzene-1,2-diamine ligand and O acetate O atoms. Chains along [010] are joined by bridging acetate ligands to form planes parallel to (10-1). (II) and (III) are isotypic and have one PbII ion in the asymmetric unit that has an O6N coordination sphere. Pb2O2 units result from a symmetry-imposed inversion center. Polymeric chains parallel to [100] exhibit hydrogen bonding between the amine and acetate ligands. In (III), additional hydrogen bonds between cyano groups and non-coordinating amines join the chains by forming R22(14) rings.
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Affiliation(s)
- David K Geiger
- Department of Chemistry, SUNY-College at Geneseo, Geneseo, NY 14454, USA
| | - Dylan E Parsons
- Department of Chemistry, SUNY-College at Geneseo, Geneseo, NY 14454, USA
| | - Patricia L Zick
- Department of Chemistry, SUNY-College at Geneseo, Geneseo, NY 14454, USA
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