1
|
Lu T, Li D, Feng J, Zhang W, Kang Y. Efficient extraction performance and mechanisms of Cd 2+ and Pb 2+ in water by novel dicationic ionic liquids. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119767. [PMID: 38109826 DOI: 10.1016/j.jenvman.2023.119767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/12/2023] [Accepted: 12/03/2023] [Indexed: 12/20/2023]
Abstract
Ten novel hydrophobic dicationic ionic liquids (DILs) were synthesized and applied for the extraction of heavy metals in aqueous solutions. Their physicochemical properties were measured at ambient temperature, and the leaching behaviors of the as-prepared DILs in water were assessed by TOC analysis. Metal extraction experiments were carried out to evaluate the extraction performances of the DILs. It was found that the extraction rates of up to 0.45 and 0.53 mg·(g·min)-1 were achieved with 100 mg DILs for 5 mL of 5 mg/L Cd2+ and Pb2+ solutions. Besides, the extraction efficiencies of Cd2+ and Pb2+ were respectively up to 95.48% and 98.46%, when the volumes of the simulated wastewater were expanded by a factor of 20 at a constant extraction phase ratio (1000 mg DILs for 50 mL of 5 mg/L Cd2+ or Pb2+ solutions). The reusability of the novel DILs was successfully proved by the back-extraction experiments with 0.5 M HNO3. Finally, taking Cd2+ extraction as an example, the extraction mechanism based on FTIR analysis and quantum chemical calculations showed that both S and O atoms in the anions of DILs had physical and quasi-chemical interactions with Cd2+, which were stronger than the electrostatic attraction.
Collapse
Affiliation(s)
- Tangzheng Lu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Dan Li
- Tianjin Key Laboratory of Advanced Electromechanical System Design and Intelligent Control, School of Mechanical Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Jiayi Feng
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Wenlong Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Yong Kang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China.
| |
Collapse
|
2
|
Antony A, Thomas T, Augustine C. On the coordination chemistry of a bacterial siderophore cepabactin from a theoretical perspective. J Mol Model 2023; 29:167. [PMID: 37126124 DOI: 10.1007/s00894-023-05565-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 04/18/2023] [Indexed: 05/02/2023]
Abstract
Iron is one of the essential metals required by almost all living organisms. However, nature has certain constraints in distributing this element among tissues. Since polymeric oxide-bridged Fe (III) is the prominent source of Fe (III) ions, the insolubility of Fe (III) ions in aqueous systems reduces the direct uptake by cells. Secondly, the free-Fe entities which generate .OH radicals pave the way to the destruction of the cells. Hence, a protective coordination environment via sophisticated chemical systems is required for the acquisition of Fe, its successive transport, storage, and effective utilization in various tissues. Siderophores are polydentate ligands used by bacterial cells for Fe acquisition, with a relatively high affinity for Fe (III) ions. Secreted from the bacterial cells into the external aqueous medium, they sequester Fe to give a soluble complex which re-enters the organism at a specific receptor. Once it gets inside the cell, the Fe is released from the complex and utilized for essential biochemical reactions. The medicinal applications of these natural ligands, developing progressively in various research groups, necessitate the theoretical aspects of their coordination chemistry. This research paper deals with the coordination chemistry of one of the siderophores, cepabactin (Cep). The chemical computations confirm that the FeIII(Cep)3 complex is octahedral and high spin. The oxygen atoms of Cep, which are hard and negatively charged, thus act as electron donors in the FeIII(Cep)3 complex formation. This in turn makes the siderophores relatively less attractive towards Fe (II) ions.
Collapse
Affiliation(s)
- Arsha Antony
- Department of Chemistry, St. Berchmans College, Mahatma Gandhi University, Kottayam, India
| | - Tiju Thomas
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai, India
| | - Cyril Augustine
- Department of Chemistry, St. Berchmans College, Mahatma Gandhi University, Kottayam, India.
| |
Collapse
|
3
|
The effects of biologically important divalent and trivalent metal cations on the cyclization step of dopamine autooxidation reaction: a quantum chemical study. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
4
|
Highly Fluorescent Carbon Dots as a Potential Fluorescence Probe for Selective Sensing of Ferric Ions in Aqueous Solution. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9110301] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This paper’s emphasis is on the development of a fluorescent chemosensor for Fe3+ ions in an aqueous solution, using hydrophilic carbon dots (O-CDs). A simple, cost-effective, and environmentally friendly one-step hydrothermal synthesis method was used to synthesize fluorescent hydrophilic O-CDs from Oxalis corniculata (Family; Oxalidaceae). The graphitic structure and size distribution of the O-CDs was verified by X-ray diffraction, Raman spectroscopy, and high-resolution transmission electron microscopy studies. The resulting O-CDs had a near-spherical shape and an adequate degree of graphitization at the core, with an average diameter of 4.5 nm. X-ray photoelectron and Fourier transform infrared spectroscopy methods revealed the presence of several hydrophilic groups (carbonyl, amine, carboxyl, and hydroxyl, along with nitrogen and oxygen-rich molecules) on the surface of O-CDs. The synthesized hydrophilic O-CDs with excitation wavelength-dependent emission fluorescence characteristics showed a high quantum yield of about 20%. Besides this, the hydrophilic O-CDs exhibited a bright and controllable fluorescence with prolonged stability and photo-stability. These fluorescent hydrophilic O-CDs were used as a nanoprobe for the fluorometric identification of Fe3+ ions in an aqueous solution, with high sensitivity and selectivity. By quenching the blue emission fluorescence of this nanosensor, a highly sensitive Fe3+ ion in the range of 10–50 µM with a minimum detection limit of 0.73 µM was achieved. In addition, the developed nanosensor can be used to sense intracellular Fe3+ ions with high biocompatibility and cellular imaging capacity, and it has a lot of potential in biomedical applications.
Collapse
|
5
|
Kaviani S, Shahab S, Sheikhi M, Khaleghian M, Al Saud S. Characterization of the binding affinity between some anti-Parkinson agents and Mn2+, Fe3+ and Zn2+ metal ions: A DFT insight. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
6
|
Abstract
Scale deposition is a pertinent challenge in the oil and gas industry. Scales formed from iron sulfide are one of the troublous scales, particularly pyrite. Moreover, the use of biodegradable environmentally friendly chemicals reduces the cost compared to the conventional removal process. In this work, the chelating abilities of four novel chemicals, designed using the in silico technique of density functional theory (DFT), are studied as potential iron sulfide scale removers. Only one of the chemicals containing a hydroxamate functional group had a good chelating ability with Fe2+. The chelating strength and ecotoxicological properties of this chemical were compared to diethylenetriaminepentaacetic acid (DTPA), an already established iron sulfide scale remover. The new promising chemical surpassed DTPA in being a safer chemical and having a greater binding affinity to Fe2+ upon optimization, hence, a better choice. The presence of oxime (-NHOH) and carbonyl (C=O) moieties in the new chemical showed that the bidentate form of chelation is favored. Moreover, the presence of an intramolecular hydrogen bond enhanced its chelating ability.
Collapse
|
7
|
Dash D, Baral M, Kanungo B. Synthesis of a new tetradentate chelator with 1-Hydoroxy-2(1H)-pyridinone (HOPO) as chelating unit: Interaction with Fe (III), solution thermodynamics and DFT studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128796] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
8
|
Kaviani S, Izadyar M, Housaindokht MR. A DFT study on the metal ion selectivity of deferiprone complexes. Comput Biol Chem 2020; 86:107267. [PMID: 32470911 DOI: 10.1016/j.compbiolchem.2020.107267] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/13/2020] [Accepted: 04/14/2020] [Indexed: 12/21/2022]
Abstract
In this work, systematic density functional theory (DFT) calculations were performed to study the interactions of various metal ions (Al3+, Fe3+, Co2+, Ni2+, Cu2+, and Zn2+) and the clinically useful chelating agent called deferiprone (DFP) at the M05-2X/6-31G(d) level of theory. The thermodynamic parameters of metal-deferiprone complexes were determined in water. Based on the obtained data, the theoretical binding energy trend is as follows: Al3+ > Fe3+ > Cu2+ > Ni2+ > Co2+ > Zn2+, confirming that [Al(DFP)3] has the most interaction energy. Moreover, Natural bond orbital analysis was employed to determine and analyze the natural charges on different atoms and charge transfer between the metal ions and ligands (oxygen atoms) as well as the interaction energy (E(2)) values. The calculated value of ƩE(2) (donor-acceptor interaction energy) for [Al(DFP)3] complex is higher than other complexes, which is according to energy analysis. To confirm the type of effective interactions and bonding properties in the water, the quantum theory of atoms in molecules (QTAIM) analysis was applied. QTAIM analysis confirmed that the strongest M - O bond is found in the [Al(DFP)3] complex. The calculated topological properties at the bond critical points, such as the ratio of the kinetic energy density to the potential energy density, -G(r)/V(r), electronic energy density, H(r), confirm that M - O bonds in the Al-deferiprone complex are non-covalent, while in other complexes, they are electrostatic and partially covalent.
Collapse
Affiliation(s)
- Sadegh Kaviani
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohammad Izadyar
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
| | | |
Collapse
|
9
|
DFT study of the application of polymers cellulose and cellulose acetate for adsorption of metal ions (Cd2+, Cu2+ and Cr3+) potentially toxic. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02926-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
10
|
Yan H, Hider RC, Ma Y. Synthesis, characterisation and quantum chemical studies of a new series of iron chelatable fluorescent sensors. Mol Phys 2019. [DOI: 10.1080/00268976.2018.1533147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Huihui Yan
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
| | - Robert C. Hider
- Institute of Pharmaceutical Science, King’s College London, London, UK
| | - Yongmin Ma
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China
| |
Collapse
|
11
|
Kaviani S, Shahab S, Sheikhi M, Ahmadianarog M. DFT study on the selective complexation of meso-2,3-dimercaptosuccinic acid with toxic metal ions (Cd2+, Hg2+ and Pb2+) for pharmaceutical and biological applications. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|