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Oh MJ, Kownacki I, Kubicki M. Solvent-Free and Efficient Synthesis of Silatranes via an Organocatalytic Protocol under Mild Conditions. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2024; 12:2049-2057. [PMID: 38333205 PMCID: PMC10848291 DOI: 10.1021/acssuschemeng.3c07293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/29/2023] [Accepted: 01/02/2024] [Indexed: 02/10/2024]
Abstract
The organocatalytic approach to the formation of silatranyl cages permitted the design of a solvent-free and efficient protocol for the preparation of various organosilatranes. We discovered that amidine derivatives efficiently catalyze the conversion of trialkoxysilanes into organosilatranes, and their catalytic activity is related to the pKBH+ values. NMR studies of equimolar reactions of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) and 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) with selected substrates allowed proposing a reliable scheme for the transesterification process and silatranyl cage formation. In addition, green chemistry metrics for the scaled-up synthesis of vinylsilatrane (3k) were appointed. Finally, a scheme for the industrial production of silatrane derivatives with DBU and solvent regeneration was proposed, supported by a catalyst recycling experiment.
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Affiliation(s)
- Myong Joon Oh
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Center for Advanced Technology, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Ireneusz Kownacki
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Center for Advanced Technology, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Maciej Kubicki
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
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Gupta H, Singh R, Kaur V. In-situ generation of fluorescent silica nano-aggregates of silatranyl appended furfural Schiff base and its application to the spectrofluorimetric analysis of phenolic brominated flame retardants in aqueous medium. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 278:121338. [PMID: 35567821 DOI: 10.1016/j.saa.2022.121338] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 04/07/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
A silatranyl appended furfural Schiff base (Silt-FUR) has been synthesized and characterized by spectroscopic techniques, elemental analysis and mass spectrometry. The dissolution of Silt-FUR in methanol-water (90:10 v/v) results in the formation of fluorescent nano-aggregates due to the hydrolysis of the silatranyl ring. The formation of nano-aggregates has been confirmed by dynamic light scattering, scanning electron microscopy and transmission electron microscopy. The nano-aggregates exhibit quenching of fluorescence in the presence of phenolic brominated flame retardants such as 3,3',5,5'-tetrabromobisphenol A, 2,4-dibromophenol, 2,4,6-tribromophenol, and pentabromophenol. Density-Functional Theory and NMR titration suggest that acid-base pair formation between azomethinic functionality and flame retardants is the main cause of quenching of fluorescent signal as it causes photoinduced electron transfer. Due to the excellent spectrofluorimetric response of Silt-FUR nano-aggregates to detect brominated phenols, a spectrofluorimetric method has been standardized for the quantification of brominated flame retardants. The detection limit for pentabromophenol obtained is 0.432 µM under optimal experimental conditions, and the linear range of the determination is 0.0495-1.35 µM. Thus, the in-situ generation of nano-aggregates offers a user-friendly method for the detection, quantification and extraction of the brominated phenols with exceptionally high sensitivity and selectivity for pentabromophenol.
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Affiliation(s)
- Harshita Gupta
- Department of Chemistry, Panjab University, Sector-14, Chandigarh 160014, India
| | - Raghubir Singh
- Department of Chemistry, DAV College, Sector 10, Chandigarh 160011, India.
| | - Varinder Kaur
- Department of Chemistry, Panjab University, Sector-14, Chandigarh 160014, India.
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Mehmandoust M, Gumus ZP, Soylak M, Erk N. Electrochemical immunosensor for rapid and highly sensitive detection of SARS-CoV-2 antigen in the nasal sample. Talanta 2022; 240:123211. [PMID: 34999319 PMCID: PMC8730781 DOI: 10.1016/j.talanta.2022.123211] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/31/2021] [Accepted: 01/04/2022] [Indexed: 01/06/2023]
Abstract
A label-free electrochemical biosensing approach as an appropriate analysis technique for SARS-CoV-2 spike protein (SARS-CoV-2 S-protein) was investigated to facilitate the diagnosis of coronavirus in real samples. It is crucial to construct diagnostic features that can rapidly identify infected individuals to limit the spread of the virus and assign treatment choices. Therefore, a novel and selective method using SiO2@UiO-66 and a label-free electrochemical immunoassay for rapidly detecting spike protein. The development of innovative approaches for direct viral detection employing simplified and ideally reagent-free assays is a pressing and difficult topic. The absence of speedy and effective ways to diagnose viral diseases especially SARS-CoV-2 on demand has worsened the issue of combating the COVID-19 pandemic. The developed electrode illustrated a wide dynamic range of 100.0 fg mL-1 to 10.0 ng mL-1 with low limit detection. Therefore, the as-fabricated electrochemical SARS-CoV-2 S-protein sensor suggests an appropriate perspective in the point-of-care system, within 5.0 min, in nasal samples with satisfactory recovery.
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Affiliation(s)
- Mohammad Mehmandoust
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560, Ankara, Turkey; Sakarya University, Biomaterials, Energy, Photocatalysis, Enzyme Technology, Nano & Advanced Materials, Additive Manufacturing, Environmental Applications, And Sustainability Research & Development Group (BIOENAMS R&D Group), 54187, Sakarya, Turkey.
| | - Z Pinar Gumus
- Central Research Testing and Analysis Laboratory Research and Application Center, Ege University, Bornova, Izmir, 35100, Turkey
| | - Mustafa Soylak
- Erciyes University, Faculty of Sciences, Department of Chemistry, 38039, Kayseri, Turkey; Technology Research & Application Center (TAUM), Erciyes University, 38039, Kayseri, Turkey; Turkish Academy of Sciences (TUBA), Cankaya, Ankara, Turkey
| | - Nevin Erk
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560, Ankara, Turkey; Sakarya University, Biomaterials, Energy, Photocatalysis, Enzyme Technology, Nano & Advanced Materials, Additive Manufacturing, Environmental Applications, And Sustainability Research & Development Group (BIOENAMS R&D Group), 54187, Sakarya, Turkey.
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A DFT insight into the structure and electronic characteristics of group 14 bis-atranes and their analoges. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Keshta BE, Gemeay AH, Khamis AA. Impacts of horseradish peroxidase immobilization onto functionalized superparamagnetic iron oxide nanoparticles as a biocatalyst for dye degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:6633-6645. [PMID: 34455562 DOI: 10.1007/s11356-021-16119-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
To enhance the dye removal efficiency by natural enzyme, horseradish peroxidase (HRP) was immobilized onto amine-functionalized superparamagnetic iron oxide and used as a biocatalyst for the oxidative degradation of acid black-HC dye. The anchored enzyme was characterized by vibrating sample magnetometry, Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetry, scanning electron microscopy, Brunauer-Emmett-Teller and Barrett-Joyner-Halenda methods, nitrogen adsorption-desorption measurements, Zeta potential, energy dispersive X-ray spectroscopy, and transmission electron microscopy. The Michaelis constant values of free and immobilized HRP were determined to be 4.5 and 5 mM for hydrogen peroxide and 12.5 and 10 mM for guaiacol, respectively. Moreover, the maximum values of free and immobilized HRP were 2.4 and 2 U for H2O2, respectively, and 1.25 U for guaiacol. The immobilized enzyme was thermally stable up to 60°C, whereas the free peroxidase was stable only up to 40°C. In the catalytic experiment, the immobilized HRP exhibited superior catalytic activity compared with that of free HRP for the oxidative decolorization and removal of acid black-HC dye. The influence of experimental parameters such as the catalyst dosage, pH, H2O2 concentration, and temperature on the removal efficiency was investigated. The reaction followed second-order kinetics, and the thermodynamic activation parameters were determined.
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Affiliation(s)
- Basem E Keshta
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Ali H Gemeay
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Abeer A Khamis
- Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
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6
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Singh H, Taya N, Agarwal J, Singh R, Kaur V. Dichiral [4.4.3.0
1,5
]tridecane copper(II) cluster derived from a tripodal ligand having unsymmetrical podands and the linker: Synthesis, structure, surface grafting and catalytic aspects. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hemant Singh
- Department of Chemistry Panjab University Chandigarh India
| | - Navneet Taya
- Department of Chemistry Panjab University Chandigarh India
| | - Jyoti Agarwal
- Department of Chemistry Panjab University Chandigarh India
| | | | - Varinder Kaur
- Department of Chemistry Panjab University Chandigarh India
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Kaur P, Singh R, Kaur V. Dual role of silatranized Schiff base as a fluorimetric probe and a linker to functionalize graphene oxide for the selective detection and adsorption of zinc ions. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119859] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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8
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Gemeay AH, Keshta BE, El-Sharkawy RG, Zaki AB. Chemical insight into the adsorption of reactive wool dyes onto amine-functionalized magnetite/silica core-shell from industrial wastewaters. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:32341-32358. [PMID: 31707614 DOI: 10.1007/s11356-019-06530-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 09/12/2019] [Indexed: 06/10/2023]
Abstract
Fe3O4 NPs are synthesized by the co-precipitation technique. Moreover, the pristine was coated by silica layer and then functionalized by 3-aminopropyltrimethoxysilane (APTS). The sample possessed saturation magnetization with value equals 37 emu/g which made them to easily separate using external magnet. FT-IR, TGA, EDX, and VSM confirmed the aminosilane loading. The surface topography and composition were characterized using XRD, TEM, SEM, BJH, and BET methods. Where adsorption capacity of the surface toward the removal of four commercial reactive wool dyes (RD), Itowol black (IB), Itowol Red (IR), Sunzol black (SB), and Lanasol blue (LB) have been investigated. The influence variables such as pH, adsorbent dose, dye concentration, and temperature were calculated. Where experimental results fitted to Langmuir isotherm model with qmax equals 161.29, 151.51, 123.45, and 98.20 mg/g, for IR, LB, SB, and IB respectively. The results showed that the RD adsorption described by pseudo-second-order kinetics. The calculated thermodynamic parameters indicated that RD adsorption onto Fe3O4@SiO2-NH2 was spontaneous and exothermic in nature. The possible mechanisms monitoring RD adsorption on the surface included hydrogen bonding and electrostatic interactions. The reusability of adsorbent carried with four cycles without releasing of magnetite and thus excluding the potential hazardous of nanomaterial to the environment. Graphical abstract.
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Affiliation(s)
- Ali H Gemeay
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Basem E Keshta
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Rehab G El-Sharkawy
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Ahmed B Zaki
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
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10
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Chachkov D, Ismagilova R, Vereshchagina Y. Mechanism of Reactions of 1-Substituted Silatranes and Germatranes, 2,2-Disubstituted Silocanes and Germocanes, 1,1,1-Trisubstituted Hyposilatranes and Hypogermatranes with Alcohols (Methanol, Ethanol): DFT Study. Molecules 2020; 25:molecules25122803. [PMID: 32560499 PMCID: PMC7356647 DOI: 10.3390/molecules25122803] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/11/2020] [Accepted: 06/15/2020] [Indexed: 11/21/2022] Open
Abstract
The mechanism of reactions of silatranes and germatranes, and their bicyclic and monocyclic analogues with one molecule of methanol or ethanol, was studied at the Density Functional Theory (DFT) B3PW91/6-311++G(df,p) level of theory. Reactions of 1-substituted sil(germ)atranes, 2,2-disubstituted sil(germ)ocanes, and 1,1,1-trisubstituted hyposil(germ)atranes with alcohol (methanol, ethanol) proceed in one step through four-center transition states followed by the opening of a silicon or germanium skeleton and the formation of products. According to quantum chemical calculations, the activation energies and Gibbs energies of activation of reactions with methanol and ethanol are close, their values decrease in the series of atranes–ocanes–hypoatranes for interactions with both methanol and ethanol. The reactions of germanium-containing derivatives are characterized by lower activation energies in comparison with the reactions of corresponding silicon-containing compounds. The annular configurations of the product molecules with electronegative substituents are stabilized by the transannular N→X (X = Si, Ge) bond and different intramolecular hydrogen contacts with the participation of heteroatoms of substituents at the silicon or germanium.
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Affiliation(s)
- Denis Chachkov
- Kazan Department of Joint Supercomputer Center of Russian Academy of Sciences–Branch of Federal State Institution “Scientific Research Institute for System Analysis of the RAS”, Lobachevskogo 2/31, 420111 Kazan, Russia;
| | - Rezeda Ismagilova
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russia;
| | - Yana Vereshchagina
- Department of Physical Chemistry, A.M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russia;
- Correspondence: or
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Bargan A, Zaltariov MF, Vlad A, Dumitriu AMC, Soroceanu A, Macsim AM, Dascalu M, Varganici CD, Cazacu M, Shova S. Keto-enol tautomerism in new silatranes Schiff bases tailed with different substituted salicylic aldehyde. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2018.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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13
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Radi S, Abiad CE, Moura NMM, Faustino MAF, Neves MGPMS. New hybrid adsorbent based on porphyrin functionalized silica for heavy metals removal: Synthesis, characterization, isotherms, kinetics and thermodynamics studies. JOURNAL OF HAZARDOUS MATERIALS 2019; 370:80-90. [PMID: 29150138 DOI: 10.1016/j.jhazmat.2017.10.058] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 10/24/2017] [Accepted: 10/28/2017] [Indexed: 05/28/2023]
Abstract
The pollution of water resources due to the disposal of toxic heavy metals has been a growing global concern for the last decades. For this purpose, the search for effective and economic material based adsorbents is required, due to the efficiency of the process. In this work, a novel inorganic-organic hybrid material based on silica chemically modified with a porphyrin (SiNTPP), with a high metal removal efficiency, was developed. The new material was characterized using a set of suitable techniques such as 13C NMR of the solid state, elemental analysis, FTIR, nitrogen adsorption-desorption isotherm, BET surface area, BJH pore sizes and scanning electron microscopy (SEM). The new material surface exhibits good chemical and thermal stability based on the obtained thermogravimetric curves (TGA). An adsorption study was accomplished to investigate the effect of porphyrin-silica hybrid on the removal of Pb(II), Zn(II), Cd(II) and Cu(II) from aqueous solutions using a batch method. The effect of various parameters, such as initial metal concentration, pH, temperature, as well as the kinetics and thermodynamics for sorption on SiNTPP were investigated. The studies demonstrate that adsorption is fast, as proved by the equilibrium achievement within 25min. The metals removal from aqueous solution are better adapted to the Langmuir isotherm model than to the Freundlich model. The thermodynamic parameters (ΔG°, ΔH° and ΔS°) disclose that the process was endothermic and spontaneous in nature, and the adsorption process follows a pseudo-second order kinetics. The adsorbent can be regenerated continuously without affecting its extraction percentage. Its effectiveness is highly justified compared to previous described materials.
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Affiliation(s)
- Smaail Radi
- Laboratory of Applied Chemistry and Environment (LCAE), Department of Chemistry, Faculty of Sciences, University Mohamed Premier, Oujda, Morocco.
| | - Chahrazad El Abiad
- Laboratory of Applied Chemistry and Environment (LCAE), Department of Chemistry, Faculty of Sciences, University Mohamed Premier, Oujda, Morocco
| | - Nuno M M Moura
- QOPNA and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Maria A F Faustino
- QOPNA and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - M Graça P M S Neves
- QOPNA and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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Adamovich SN. New atranes and similar ionic complexes. Synthesis, structure, properties. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4940] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Sergey N. Adamovich
- A. E. Favorsky Irkutsk Institute of ChemistrySB RAS 1 Favorsky Street 664033 Irkutsk Russian Federation
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15
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Supramolecular Hybrid Material Based on Engineering Porphyrin Hosts for an Efficient Elimination of Lead(II) from Aquatic Medium. Molecules 2019; 24:molecules24040669. [PMID: 30769770 PMCID: PMC6412391 DOI: 10.3390/molecules24040669] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/05/2019] [Accepted: 02/11/2019] [Indexed: 01/08/2023] Open
Abstract
Porphyrins show great promise for future purification demands. This is largely due to their unique features as host binding molecules that can be modified at the synthetic level, and largely improved by their incorporation into inorganic based materials. In this study, we assessed the efficacy of a hybrid material obtained from the immobilization of 5,10,15,20-tetrakis(pentafluorophenyl)-porphyrin on silica surface to remove Pb(II), Cu(II), Cd(II), and Zn(II) ions from water. The new organic-inorganic hybrid adsorbent was fully characterized by adequate techniques and the results show that the hybrid exhibits good chemical and thermal stability. From batch assays, it was evaluated how the efficacy of the hybrid was affected by the pH, contact time, initial metal concentration, and temperature. The adsorption kinetic and isotherms showed to fit the recent developed fractal-like pseudo-second-order model and Langmuir–Freundlich model respectively. The highest adsorption capacities for Pb(II), Cu(II), Cd(II), and Zn(II) ions were 187.36, 125.17, 82.45, and 56.23 mg g−1, respectively, at pH 6.0 and 25 °C. This study also shows that metal cations from real river water samples can be efficient removed in the presence of the new adsorbent material.
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Fang H, Chen L, Zeng L, Yang Z, Zhang J. Stability, Stimuli-Responsiveness, and Versatile Sorption Properties of a Dynamic Covalent Acylhydrazone Gel. GLOBAL CHALLENGES (HOBOKEN, NJ) 2019; 3:1800073. [PMID: 31565362 PMCID: PMC6607176 DOI: 10.1002/gch2.201800073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/17/2018] [Indexed: 06/10/2023]
Abstract
Gel adsorbents are promising for pollutant removal from the wastewater. Herein, an acylhydrazone gel is developed from acylhydrazide-terminated pentaerythritol (PAT) and 2,4,6-triformylphloroglucinol (TFP) based on dynamic covalent acylhydrazone chemistry. PAT-TFP gel is stable under various conditions, while it shows reversible Cu2+ adsorption and desorption. PAT-TFP gel is studied as a versatile adsorbent for the capture of a range of (bulky) organic contaminants and heavy metal ions from aqueous solutions. Fast and good adsorption capacities are achieved for various dyes (rhodamine B and methyl orange), amines (aniline, p-chloroaniline, 4-methylaniline, and p-aminobenzoic acid), phenols (phenol, 1-naphthol, p-methylphenol, and bisphenol A), and metal ions (Cu2+, Cr3+, and Hg2+). The maximum adsorption capacity is 107.5 mg g-1 for Cu2+ and the equilibrium adsorption time is 30 min. PAT-TFP gel can be regenerated efficiently and used repeatedly.
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Affiliation(s)
- Haobin Fang
- MOE Laboratory of Polymeric Composite and Functional MaterialsSchool of Materials Science and EngineeringSchool of Chemical Engineering and TechnologySun Yat‐Sen UniversityGuangzhou510275China
| | - Lingyu Chen
- MOE Laboratory of Polymeric Composite and Functional MaterialsSchool of Materials Science and EngineeringSchool of Chemical Engineering and TechnologySun Yat‐Sen UniversityGuangzhou510275China
| | - Lihua Zeng
- MOE Laboratory of Polymeric Composite and Functional MaterialsSchool of Materials Science and EngineeringSchool of Chemical Engineering and TechnologySun Yat‐Sen UniversityGuangzhou510275China
| | - Zujin Yang
- MOE Laboratory of Polymeric Composite and Functional MaterialsSchool of Materials Science and EngineeringSchool of Chemical Engineering and TechnologySun Yat‐Sen UniversityGuangzhou510275China
| | - Jianyong Zhang
- MOE Laboratory of Polymeric Composite and Functional MaterialsSchool of Materials Science and EngineeringSchool of Chemical Engineering and TechnologySun Yat‐Sen UniversityGuangzhou510275China
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Adamovich SN, Vchislo NV, Oborina EN, Ushakov IA, Rozentsveig IB. Novel α,β-unsaturated imine derivatives of 3-aminopropylsilatrane. MENDELEEV COMMUNICATIONS 2017. [DOI: 10.1016/j.mencom.2017.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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18
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Radi S, Toubi Y, El-Massaoudi M, Bacquet M, Degoutin S, Mabkhot YN. Efficient extraction of heavy metals from aqueous solution by novel hybrid material based on silica particles bearing new Schiff base receptor. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.08.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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19
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Radi S, Tighadouini S, Bacquet M, Degoutin S, Dacquin JP, Eddike D, Tillard M, Mabkhot YN. β-Keto-enol Tethered Pyridine and Thiophene: Synthesis, Crystal Structure Determination and Its Organic Immobilization on Silica for Efficient Solid-Liquid Extraction of Heavy Metals. Molecules 2016; 21:E888. [PMID: 27399659 PMCID: PMC6274414 DOI: 10.3390/molecules21070888] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 06/23/2016] [Accepted: 07/01/2016] [Indexed: 11/16/2022] Open
Abstract
Molecules bearing β-keto-enol functionality are potential candidates for coordination chemistry. Reported herein is the first synthesis and use of a novel designed ligand based on β-keto-enol group embedded with pyridine and thiophene moieties. The product was prepared in a one-step procedure by mixed Claisen condensation and was characterized by EA, m/z, FT-IR, (¹H, (13)C) NMR and single-crystal X-ray diffraction analysis. The new structure was grafted onto silica particles to afford a chelating matrix which was well-characterized by EA, FT-IR, solid-state (13)C-NMR, BET, BJH, SEM and TGA. The newly prepared organic-inorganic material was used as an adsorbent for efficient solid-phase extraction (SPE) of Cu(II), Zn(II), Cd(II) and Pb(II) from aqueous solutions and showed a capture capacity of 104.12 mg·g(-1), 98.90 mg·g(-1), 72.02 mg·g(-1), and 65.54 mg·g(-1), respectively. The adsorption capacity was investigated, in a batch method, using time of contact, pH, initial concentration, kinetics (Langmuir and Freundlich models), and thermodynamic parameters (ΔG°, ΔH° and ΔS°) of the system effects.
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Affiliation(s)
- Smaail Radi
- Laboratoire de Chimie Appliquée et Environnement (LCAE), Faculté des Sciences, Université Mohamed I, Oujda 60 000, Morocco.
- Centre de l'Oriental des Sciences et Technologies de l'Eau (COSTE), Université Med I, Oujda 60 000, Morocco.
| | - Said Tighadouini
- Laboratoire de Chimie Appliquée et Environnement (LCAE), Faculté des Sciences, Université Mohamed I, Oujda 60 000, Morocco.
| | - Maryse Bacquet
- Unité Matériaux et Transformations (UMET) - UMR CNRS 8207 Université Lille 1, 59655 Villeneuve d'Ascq Cedex, France.
| | - Stephanie Degoutin
- Unité Matériaux et Transformations (UMET) - UMR CNRS 8207 Université Lille 1, 59655 Villeneuve d'Ascq Cedex, France.
| | - Jean-Philippe Dacquin
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000 Lille, France.
| | - Driss Eddike
- Laboratoire de Chimie du Solide Minéral et Analytique, Faculté des Sciences, Université Mohamed I, Oujda 60 000, Morocco.
| | - Monique Tillard
- Institut Charles Gerhardt-AIME, UMR 5253, CC1502, Université de Montpellier, 2 place Eugène Bataillon, 34095 Montpellier Cedex 5, France.
| | - Yahia N Mabkhot
- Department of Chemistry, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
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Hexacoordinate Silicon Compounds with a Dianionic Tetradentate (N,N′,N′,N)-Chelating Ligand. INORGANICS 2016. [DOI: 10.3390/inorganics4020008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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