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Song X, Xu C, Yao W, Wen J, Wei Q, Li Y, Feng X. Study on the Controllable Preparation of Nd3+ Doped in Fe3O4 Nanoparticles for Magnetic Protective Fabrics. Molecules 2023; 28:molecules28073175. [PMID: 37049938 PMCID: PMC10096039 DOI: 10.3390/molecules28073175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/31/2023] [Accepted: 03/31/2023] [Indexed: 04/05/2023] Open
Abstract
Magnetic protective fabrics with fine wearability and great protective properties are highly desirable for aerospace, national defense, and wearable protective applications. The study of the controllable preparation method of Nd3+ doped in Fe3O4 nanoparticles with supposed magnetic properties remains a challenge. The characterization of the microstructure, elemental composition, and magnetic properties of NdFe2O4 nanoparticles was verified. Then, the surface of NdFe2O4 was treated with glyceric acid to provide sufficient –OH. Subsequently, the connection of the nanoparticle by the succinimide group was studied and then grafted onto cotton fabrics as its bridging effect. The optimal loading rate of the functional fabrics with nanoparticles of an average size of 230 nm was 1.37% after a 25% alkali pretreatment. The color fatness to rubbing results showed better stability after washing and drying. The corresponding hysteresis loop indicated that the functional fabrics exhibited typical magnetism behavior with a closed “S” shape and a magnetic saturation value of 17.61 emu.g−1 with a particle size of 230 nm. However, the magnetic saturation value of the cotton fabric of 90 nm was just 4.89 emu.g−1, exhibiting controllable preparation for the aimed electromagnetic properties and great potential in radiation protective fields. The electrochemical properties of the functional fabrics exhibited extremely weak electrical conductivity caused by the movement of the magnetic dipole derived from the NdFe2O4 nanoparticles.
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Affiliation(s)
- Xiaolei Song
- Fujian Key Laboratory of Novel Functional Textile Fibers and Materials, Minjiang University, Fuzhou 350108, China
- Faculty of Clothing and Design, Minjiang University, Fuzhou 350108, China
| | - Congzhu Xu
- Faculty of Clothing and Design, Minjiang University, Fuzhou 350108, China
| | - Wendong Yao
- Faculty of Clothing and Design, Minjiang University, Fuzhou 350108, China
| | - Jieyun Wen
- Faculty of Clothing and Design, Minjiang University, Fuzhou 350108, China
| | - Qufu Wei
- Fujian Key Laboratory of Novel Functional Textile Fibers and Materials, Minjiang University, Fuzhou 350108, China
- College of Textile and Clothing, Jiangnan University, Wuxi 214122, China
| | - Yonggui Li
- Fujian Key Laboratory of Novel Functional Textile Fibers and Materials, Minjiang University, Fuzhou 350108, China
- Faculty of Clothing and Design, Minjiang University, Fuzhou 350108, China
| | - Xinqun Feng
- Fujian Key Laboratory of Novel Functional Textile Fibers and Materials, Minjiang University, Fuzhou 350108, China
- College of Fashion and Design, Donghua University, Shanghai 201620, China
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Facile construction of core-shell Carbon@CoNiO 2 derived from yeast for broadband and high-efficiency microwave absorption. J Colloid Interface Sci 2022; 625:415-424. [PMID: 35724464 DOI: 10.1016/j.jcis.2022.06.012] [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: 04/18/2022] [Revised: 05/28/2022] [Accepted: 06/04/2022] [Indexed: 11/20/2022]
Abstract
Manufacturing dielectric/magnetic composites with hierarchical structure is regard as a promising strategy for the progress of high-performance microwave absorption (MA) materials. In this paper, the nano-grass structured CoNiO2 magnetic shell was uniformly anchored on the yeast-derived carbon microspheres by in-situ one-pot synthesis method. Profiting from the unique nano-grass and core-shell structure, capable dielectric/magnetic loss, along with improved impedance matching, the prepared absorber realizes desirable MA performance. The minimum reflection loss (RLmin) reaches up to -44.06 dB at 6.56 GHz. Moreover, the effective absorption bandwidth (EAB, reflection loss (RL) < -10 dB) accomplishes 7.04 GHz under a low filler loading of 20 wt%. This work endeavors a valuable insight for designing innovative core-shell structured materials with high-efficiency MA and broad bandwidth.
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Qiang R, Feng S, Chen Y, Ma Q, Chen B. Recent progress in biomass-derived carbonaceous composites for enhanced microwave absorption. J Colloid Interface Sci 2021; 606:406-423. [PMID: 34392035 DOI: 10.1016/j.jcis.2021.07.144] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 07/27/2021] [Accepted: 07/29/2021] [Indexed: 12/18/2022]
Abstract
Carbonaceous microwave absorbing materials are in vital demand due to the extensive electromagnetic pollution in 5G network era and urgent requirements for stealth technology in national defense domain. Rather than the complicated vapor deposition method, a simple biomass-derived approach sheds light on the mass production of carbon materials for its ubiquitous, environmental-friendly, cost-off, and sustainable advantages. Herein, a concise review of recent advances in designing carbonaceous materials for EM attention is provided with particular stress on the biomass categories and the synthetic method. The three dimensional (3D) interconnected network of carbon materials are highlighted in analysis regarding the biomass selection, functional process, pore-forming strategy and the microwave absorption performance of the corresponding composites. Nature fiber-derived carbon materials, possessing high-aspect ratio fiber structure, are also discussed due to their potential in weaving manufacture and diverse application for flexible cloaking fabric. In the end, the current challenge and the directional perspective for utilizing biomass-derived carbon absorbing materials with effective EM properties are outlined.
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Affiliation(s)
- Rong Qiang
- School of Textiles, Zhongyuan University of Technology, Zhengzhou 450007, China; Henan Collaborative Innovation Center of Textile and Garment Industry, Zhengzhou 450007, China.
| | - Shuaibo Feng
- School of Textiles, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Yi Chen
- School of Textiles, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Qian Ma
- School of Textiles, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Bowen Chen
- School of Textiles, Zhongyuan University of Technology, Zhengzhou 450007, China
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Banerjee P, Kumar NS, Franco A, Swain AK, Chandra Babu Naidu K. Insights into the Dielectric Loss Mechanism of Bianisotropic FeSi/SiC Composite Materials. ACS OMEGA 2020; 5:25968-25972. [PMID: 33073123 PMCID: PMC7558038 DOI: 10.1021/acsomega.0c03409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/17/2020] [Indexed: 06/11/2023]
Abstract
High magnitudes of permittivity with the permeability of the materials help to absorb electromagnetic waves more efficiently. Snoek's limit directly puts a constraint on the enhancement of the permeability of the material. However, the incorporation of the lossy material may help to enhance the permittivity abruptly. In this study, we prepared a FeSi/SiC composite material with the mechanical ball milling method and investigated its enhancement of the dielectric behavior. The bianisotropic nature was observed along with the phase purity in the morphological studies. The Cole-Cole relaxation mechanisms were observed to validate a complex relaxation mechanism with 104 times higher dielectric loss in the composite material. The detection of the Warburg capacitance using the impedance technique sheds new light on the ion diffusion mechanism in the metallic composite materials.
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Affiliation(s)
- Prasun Banerjee
- Department
of Physics, Gandhi Institute of Technology
and Management (GITAM) University, Bengaluru, Karnataka 560034, India
| | | | - Adolfo Franco
- Instituto
de Fisica, Universidade Federal de Goias, Goiania 74690-900, Brazil
| | | | - Kadiyala Chandra Babu Naidu
- Department
of Physics, Gandhi Institute of Technology
and Management (GITAM) University, Bengaluru, Karnataka 560034, India
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