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Al-Kamal AK, Hammad M, Yusuf Ali M, Angel S, Segets D, Schulz C, Wiggers H. Titania/graphene nanocomposites from scalable gas-phase synthesis for high-capacity and high-stability sodium-ion battery anodes. NANOTECHNOLOGY 2024; 35:225602. [PMID: 38373356 DOI: 10.1088/1361-6528/ad2ac7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 02/18/2024] [Indexed: 02/21/2024]
Abstract
In sodium-ion batteries (SIBs), TiO2or sodium titanates are discussed as cost-effective anode material. The use of ultrafine TiO2particles overcomes the effect of intrinsically low electronic and ionic conductivity that otherwise limits the electrochemical performance and thus its Na-ion storage capacity. Especially, TiO2nanoparticles integrated in a highly conductive, large surface-area, and stable graphene matrix can achieve an exceptional electrochemical rate performance, durability, and increase in capacity. We report the direct and scalable gas-phase synthesis of TiO2and graphene and their subsequent self-assembly to produce TiO2/graphene nanocomposites (TiO2/Gr). Transmission electron microscopy shows that the TiO2nanoparticles are uniformly distributed on the surface of the graphene nanosheets. TiO2/Gr nanocomposites with graphene loadings of 20 and 30 wt% were tested as anode in SIBs. With the outstanding electronic conductivity enhancement and a synergistic Na-ion storage effect at the interface of TiO2nanoparticles and graphene, nanocomposites with 30 wt% graphene exhibited particularly good electrochemical performance with a reversible capacity of 281 mAh g-1at 0.1 C, compared to pristine TiO2nanoparticles (155 mAh g-1). Moreover, the composite showed excellent high-rate performance of 158 mAh g-1at 20 C and a reversible capacity of 154 mAh g-1after 500 cycles at 10 C. Cyclic voltammetry showed that the Na-ion storage is dominated by surface and TiO2/Gr interface processes rather than slow, diffusion-controlled intercalation, explaining its outstanding rate performance. The synthesis route of these high-performing nanocomposites provides a highly promising strategy for the scalable production of advanced nanomaterials for SIBs.
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Affiliation(s)
- Ahmed K Al-Kamal
- Institute for Energy and Materials Processes-Reactive Fluids (EMPI-RF), University of Duisburg-Essen, Duisburg, Germany
- Materials Engineering Department, Faculty of Engineering, Mustansiriyah University, Baghdad, Iraq
| | - Mohaned Hammad
- Institute for Energy and Materials Processes-Particle Science and Technology (EMPI-PST), University of Duisburg-Essen, Duisburg, Germany
| | - Md Yusuf Ali
- Institute for Energy and Materials Processes-Reactive Fluids (EMPI-RF), University of Duisburg-Essen, Duisburg, Germany
| | - Steven Angel
- Institute for Energy and Materials Processes-Reactive Fluids (EMPI-RF), University of Duisburg-Essen, Duisburg, Germany
| | - Doris Segets
- Institute for Energy and Materials Processes-Particle Science and Technology (EMPI-PST), University of Duisburg-Essen, Duisburg, Germany
- CENIDE, Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, Duisburg, Germany
| | - Christof Schulz
- Institute for Energy and Materials Processes-Reactive Fluids (EMPI-RF), University of Duisburg-Essen, Duisburg, Germany
- CENIDE, Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, Duisburg, Germany
| | - Hartmut Wiggers
- Institute for Energy and Materials Processes-Reactive Fluids (EMPI-RF), University of Duisburg-Essen, Duisburg, Germany
- CENIDE, Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, Duisburg, Germany
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Sukhadeve GK, Gedam RS. Visible light assisted photocatalytic degradation of mixture of reactive ternary dye solution by Zn-Fe co-doped TiO 2 nanoparticles. CHEMOSPHERE 2023; 341:139990. [PMID: 37648162 DOI: 10.1016/j.chemosphere.2023.139990] [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: 04/24/2023] [Revised: 08/16/2023] [Accepted: 08/25/2023] [Indexed: 09/01/2023]
Abstract
The current study deals with the synthesis of novel Zn, and Fe co-doped TiO2 photocatalyst by the sol-gel method at room temperature. The prepared photocatalysts are characterized by several standard analytical tools. X-ray diffraction (XRD) and Raman analysis verifies the tetragonal anatase phase of TiO2 in all synthesized nanoparticles. The morphology and chemical composition of ZFT_2.5 were confirmed using the Field-Emission Scanning Electron Microscope (FE-SEM) and energy dispersive X-ray (EDAX) analysis respectively. X-ray photoelectron spectroscopy (XPS) measurements verify the binding energies of a host and dopant material. The High resolution transmission electron microscopy (HR-TEM) reveals the presence of spherical nanoparticles in ZFT_2.5 photocatalyst with a diameter ranging from 8 to 20 nm. The absorption spectra of the prepared nanoparticles exhibit strong absorption in visible light. The synergistic effect created by Zn and Fe blocked the light induced charge carriers and delayed the recombination probability. The photocatalyst ZFT_2.5 was tested for photocatalytic degradation against the mixture of the three cationic dyes [rhodamine B (RhB), malachite green (MG), and methylene blue (MB)] under exposure of visible light. Total organic carbon (TOC) study was performed to evaluate the organic character of the photodegradate dye solution.
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Affiliation(s)
- G K Sukhadeve
- Department of Physics, Visvesvaraya National Institute of Technology, Nagpur, 440010, India
| | - R S Gedam
- Department of Physics, Visvesvaraya National Institute of Technology, Nagpur, 440010, India.
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Abdelmaksoud M, Mohamed A, Sayed A, Khairy S. Physical properties of PVDF-GO/black-TiO 2 nanofibers and its photocatalytic degradation of methylene blue and malachite green dyes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:30613-30625. [PMID: 33587272 DOI: 10.1007/s11356-021-12618-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
Black TiO2 and graphene oxide (GO) have attracted intensive attention as an effective catalyst on visible light driven for photodegrading of dyes. In this study, nano-black TiO2 was prepared by a simple hydrogenation of the anatase titanium oxide, and the graphene oxide was prepared by applying the modified Hummers method. The diffuse reflectance spectroscopy has been investigated to find out the optical energy gaps of the treated and nano-black samples. The prepared powders and nanofiber membranes are carefully examined to ensure their single phase and compound structure formation as well as to measure the equivalent crystallite size and particle distributions. The optimum degradation efficiency of malachite green and methylene blue dyes occurred at pH values of 8 and 10, respectively. The maximum photocatalytic degradation efficiencies of malachite green (MG) and methylene blue (MB) were found to be 74 and 39%, respectively, under visible light after 30 min. The degradation efficiency of MG is peaked at pH 8 and 20 mg of the nano-black TiO2. The stability and flexibility of the nanofibers allow their application in a continuous system and can be reused after several cycles.
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Affiliation(s)
- Muhammed Abdelmaksoud
- Physics Department, Faculty of Science, Cairo University, Giza, Egypt
- Faculty of Nanotechnology for Postgraduate Studies, Cairo University, El-Sheikh Zayed, 12588, Egypt
| | - Alaa Mohamed
- Department of Mechatronics, Canadian International College, Fifth Settlement, New Cairo, Egypt.
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
| | - Abderrahman Sayed
- Physics Department, Faculty of Science, Cairo University, Giza, Egypt
- Faculty of Nanotechnology for Postgraduate Studies, Cairo University, El-Sheikh Zayed, 12588, Egypt
| | - Sherif Khairy
- Physics Department, Faculty of Science, Cairo University, Giza, Egypt
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Peng T, Xu J, Chen R. A novel multilayer brookite TiO2 electrode for improved performance of pure brookite-based dye sensitized solar cells. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2019.136902] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dual-Bandgap Effect of Photonic Crystals on TiO2 Photocatalytic Activity in Ultraviolet and Visible Light Regions. CATALYSIS SURVEYS FROM ASIA 2018. [DOI: 10.1007/s10563-018-9259-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Cheng G, Xu F, Xiong J, Wei Y, Stadler FJ, Chen R. A novel protocol to design TiO2-Fe2O3 hybrids with effective charge separation efficiency for improved photocatalysis. ADV POWDER TECHNOL 2017. [DOI: 10.1016/j.apt.2016.12.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Enhanced adsorption and photocatalysis capability of generally synthesized TiO2-carbon materials hybrids. ADV POWDER TECHNOL 2016. [DOI: 10.1016/j.apt.2016.06.026] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Enhanced Visible Light Photocatalytic Activity of Ag and Zn Doped and Codoped TiO2 Nanoparticles. J CLUST SCI 2016. [DOI: 10.1007/s10876-016-1044-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zhang X, Zhang Y, Liu D, Feng J, Zhou L, Yang Y, Guo X, Li X. Enhanced visible-light-induced photocatalytic activity of anatase TiO2 nanocrystallite derived from CMK-3 and tetrakis(dimethylamino)titanium. RSC Adv 2016. [DOI: 10.1039/c6ra02655a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Anatase TiO2 nanocrystallite enriched in oxygen vacancies and traces of N-dopants has been synthesized from CMK-3 and tetrakis(dimethylamino)titanium.
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Affiliation(s)
- Xiaoyin Zhang
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
- University of Chinese Academy of Sciences
| | - Ye Zhang
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
| | - Dawei Liu
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
- University of Chinese Academy of Sciences
| | - Junpeng Feng
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
- University of Chinese Academy of Sciences
| | - Ligong Zhou
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
| | - Ying Yang
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
| | - Xiangyun Guo
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
| | - Xuekuan Li
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
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Li W, Wang Q, Huang L, Li Y, Xu Y, Song Y, Zhang Q, Xu H, Li H. Synthesis and characterization of BN/Bi2WO6 composite photocatalysts with enhanced visible-light photocatalytic activity. RSC Adv 2015. [DOI: 10.1039/c5ra15417k] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bi2WO6 modified with few-layer BN was synthesized by an impregnation method. The as-prepared BN/Bi2WO6 photocatalysts exhibited a higher photocatalytic activity for the degradation of Rhodamine B (RhB) than the pure Bi2WO6.
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Affiliation(s)
- Weibin Li
- School of Environment
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Qi Wang
- School of Environment
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Liying Huang
- Institute for Energy Research
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Yeping Li
- Institute for Energy Research
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Yuanguo Xu
- Institute for Energy Research
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Yanhua Song
- Institute for Energy Research
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Qi Zhang
- Hainan Provincial Key Lab of Fine Chemistry
- Hainan University
- Haikou
- P.R. China
| | - Hui Xu
- School of Environment
- Jiangsu University
- Zhenjiang 212013
- P. R. China
- Institute for Energy Research
| | - Huaming Li
- Institute for Energy Research
- Jiangsu University
- Zhenjiang 212013
- P. R. China
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