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Kim SY, Kim KS, Jong UG, Kang CJ, Ri SC, Yu CJ. First-principles study on structural, electronic, magnetic and thermodynamic properties of lithium ferrite LiFe 5O 8. RSC Adv 2022; 12:15973-15979. [PMID: 35733680 PMCID: PMC9134028 DOI: 10.1039/d2ra01656g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 04/25/2022] [Indexed: 11/21/2022] Open
Abstract
Lithium ferrite, LiFe5O8 (LFO), has attracted great attention for various applications, and there has been extensive experimental studies on its material properties and applications. However, no systematic theoretical study has yet been reported, so understanding of its material properties at the atomic scale is still required. In this work, we present a comprehensive investigation into the structural, electronic, magnetic and thermodynamic properties of LFO using first-principles calculations. We demonstrate that the ordered α-phase with ferrimagnetic spin configuration is energetically favourable among various crystalline phases with different magnetic configurations. By applying the DFT + U approach with U = 4 eV, we reproduce the lattice constant, band gap energy, and total magnetization in good agreement with experiments, emphasizing the importance of considering strong correlation and spin-polarization effects originating from the 3d states of Fe atoms. We calculated the phonon dispersions of LFO with ferrimagnetic and non-magnetic states, and subsequently evaluated the Gibbs free energy differences between the two states, plotting the P–T diagram for thermodynamic stability of the ferrimagnetic against non-magnetic state. From the P–T diagram, the Curie temperature is found to be ∼925 K at the normal condition and gradually increase with increasing pressure. Our calculations explain the experimental observations for material properties of LFO, providing a comprehensive understanding of the underlying mechanism and useful guidance for enhancing performance of LFO-based devices. We systematically investigate the material properties of lithium ferrite LiFe5O8 – structural, magnetic, electronic, lattice vibrational properties and thermodynamic stability – using density functional theory calculations.![]()
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Affiliation(s)
- Su-Yong Kim
- Chair of Computational Materials Design (CMD), Faculty of Materials Science, Kim Il Sung University P.O. Box 76 Pyongyang Democratic People's Republic of Korea
| | - Kwang-Su Kim
- Institute of Functional Materials, Faculty of Materials Science, Kim Il Sung University P.O. Box 76 Pyongyang Democratic People's Republic of Korea
| | - Un-Gi Jong
- Chair of Computational Materials Design (CMD), Faculty of Materials Science, Kim Il Sung University P.O. Box 76 Pyongyang Democratic People's Republic of Korea
| | - Chung-Jin Kang
- Chair of Computational Materials Design (CMD), Faculty of Materials Science, Kim Il Sung University P.O. Box 76 Pyongyang Democratic People's Republic of Korea
| | - Song-Chol Ri
- Institute of Functional Materials, Faculty of Materials Science, Kim Il Sung University P.O. Box 76 Pyongyang Democratic People's Republic of Korea
| | - Chol-Jun Yu
- Chair of Computational Materials Design (CMD), Faculty of Materials Science, Kim Il Sung University P.O. Box 76 Pyongyang Democratic People's Republic of Korea
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Haider S, Agboola PO, Al-Khalli NF, Shakir I. Synthesis, characterization and environmental remediation studies of Bi-substituted Li-Co spinel ferrites. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2021. [DOI: 10.1080/16583655.2021.1978813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Sajjad Haider
- Department of Chemical Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia
| | - Philips O. Agboola
- College of Engineering, Al-Muzahmia Branch, King Saud University, Riyadh, Saudi Arabia
| | - Najeeb Faud Al-Khalli
- Electrical Engineering Department, College of Engineering, King Saud University, Riyadh, Saudi Arabia
| | - Imran Shakir
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA
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Dianey GCS, Kaur H, Dosanjh HS, Narayanan J, Singh J, Yadav A, Kumar D, Luu SDN, Sharma A, Singh PP, Alberto HAC. Sunlight powered degradation of pentoxifylline Cs 0.5Li 0.5FeO 2 as a green reusable photocatalyst: Mechanism, kinetics and toxicity studies. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125762. [PMID: 33819643 DOI: 10.1016/j.jhazmat.2021.125762] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/08/2021] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
The degradation of Pentoxifylline (PXF) was achieved successfully by green energy in a built-in solar photocatalytic system using hybrid LiCs ferrites (Li0.5Cs0.5FeO2) as magnetically recoverable photocatalysts. Kinetics showed a first-order reaction rate with maximum PXF removal of 94.91% at mildly acidic pH; additionally, the ferromagnetic properties of catalyst allowed recovery and reuse multiple times, reducing costs and time in degradation processes. The degradation products were identified by HPLC-MS and allowed us to propose a thermodynamically feasible mechanism that was validated through DFT calculations. Additionally, toxicity studies have been performed in bacteria and yeast where high loadings of Cs showed to be harmful to Staphylococcus aureus (MIC≥ 4.0 mg/mL); Salmonella typhi (MIC≥ 8.0 mg/mL) and Candida albicans (MIC≥ 10.0 mg/mL). The presented setup shows effectiveness and robustness in a degradation process using alternative energy sources for the elimination of non-biodegradable pollutants.
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Affiliation(s)
| | - Harpeet Kaur
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara 144411, India
| | - H S Dosanjh
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara 144411, India
| | - Jayanthi Narayanan
- Division of Nanotechnology, Universidad Politécnica del Valle de México, 54901 Tultitlán, Mexico
| | - Jashanpreet Singh
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara 144411, India.
| | - Alpa Yadav
- Department of Applied Chemistry, School of Vocational Studies & Applied Sciences, Gautam Budha University, Greater Noida, Uttar Pradesh 201308, India
| | - Deepak Kumar
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara 144411, India
| | - Son D N Luu
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam
| | - Ajit Sharma
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara 144411, India
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Wu J, Yang Y, Guo R, Zhu H, Wang X. Low temperature hydrothermal stripping synthesis and electrochemical properties of β-LiFe5O8 nanoparticles. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2020.108431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Köferstein R. Thermoanalytical, optical, and magnetic investigations on nanocrystalline Li0.5Fe2.5O4 and resulting ceramics prepared by a starch-based soft-chemistry synthesis. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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6
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Enhanced photocatalytic and antibacterial activities of RGO/LiFe5O8 nanocomposites. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.112063] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Park CM, Kim YM, Kim KH, Wang D, Su C, Yoon Y. Potential utility of graphene-based nano spinel ferrites as adsorbent and photocatalyst for removing organic/inorganic contaminants from aqueous solutions: A mini review. CHEMOSPHERE 2019; 221:392-402. [PMID: 30641380 PMCID: PMC7373271 DOI: 10.1016/j.chemosphere.2019.01.063] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/07/2019] [Accepted: 01/08/2019] [Indexed: 05/02/2023]
Abstract
Toxic substances such as heavy metals or persistent organic pollutants raise global environmental concerns. Thus, diverse water decontamination approaches using nano-adsorbents and/or photocatalysts based on nanotechnology are being developed. Particularly, many studies have examined the removal of organic and inorganic contaminants with novel graphene-based nano spinel ferrites (GNSFs) as potential cost-effective alternatives to traditionally used materials, owing to their enhanced physical and chemical properties. The introduction of magnetic spinel ferrites into 2-D graphene-family nanomaterials to form GNSFs brings various benefits such as inhibited particle agglomeration, enhanced active surface area, and easier magnetic separation for reuse, making the GNSFs highly efficient and eco-friendly materials. Here, we present a short review on the state-of-the-art progresses on developments of GNSFs, as well as their potential application for removing several recalcitrant contaminants including organic dyes, antibiotics, and heavy metal ions. Particularly, the mechanisms involved in the adsorptive and photocatalytic degradation are thoroughly reviewed, and the reusability of the GNSFs is also highlighted. This review concludes that the GNSFs hold great potential in remediating contaminated aquatic environments. Further studies are needed for their practical and large-scale applications.
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Affiliation(s)
- Chang Min Park
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
| | - Young Mo Kim
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222, Wangsimni-Ro, Seoul 04763, Republic of Korea
| | - Dengjun Wang
- National Research Council Research Associate at the U.S. Environmental Protection Agency, 919 Kerr Research Drive, Ada, OK 74820, USA
| | - Chunming Su
- Groundwater, Watershed and Ecosystem Restoration Division, National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 919 Kerr Research Drive, Ada, OK 74820, USA.
| | - Yeomin Yoon
- Department of Civil and Environmental Engineering, University of South Carolina, Columbia, 300 Main Street, SC 29208, USA.
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Waitz S, Suchomski C, Brezesinski T, Marschall R. Ordered Mesoporous LiFe
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Thin‐Film Photoanodes for Water Splitting. CHEMPHOTOCHEM 2018. [DOI: 10.1002/cptc.201800154] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Stefanie Waitz
- Faculty of ChemistryGeorg-August-University Göttingen Tammannstrasse 4 37077 Göttingen Germany
- Institute of Physical ChemistryJustus-Liebig-University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
| | - Christian Suchomski
- Institute of Physical ChemistryJustus-Liebig-University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
| | - Torsten Brezesinski
- Institute of NanotechnologyKarlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Roland Marschall
- Institute of Physical ChemistryJustus-Liebig-University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
- Chair of Physical Chemistry IIIUniversity of Bayreuth Universitätsstrasse 30 95447 Bayreuth Germany
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Liu X, Zhang X, Zhao C, Shu X, Fang D, Wang J, Song Y. Preparation of Y2SiO5:Pr3+,Li and Na2NbxTa2−xO6/(Au/RGO) composites and investigation into visible-light driven photocatalytic hydrogen production. NEW J CHEM 2018. [DOI: 10.1039/c8nj01768a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A three-component photocatalytic system is constructed by using Na2NbxTa2−xO6 as the main catalyst, Y2SiO5:Pr3+,Li as the up-conversion luminescence agent and Au/RGO as the co-catalyst.
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Affiliation(s)
- Xudong Liu
- College of Chemistry
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Xu Zhang
- College of Chemistry
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Cheng Zhao
- College of Chemistry
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Xiaoqing Shu
- College of Chemistry
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Dawei Fang
- College of Chemistry
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Jun Wang
- College of Chemistry
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Youtao Song
- College of Environment
- Liaoning University
- Shenyang 110036
- P. R. China
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