1
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Huang S, Wen K, Liu Y, Wu C, Du X, Liang C, Ma Q, Liu Y. Optimized design, fabrication, and enhanced performance of honeycomb sandwich structure for excellent impact resistance and broadband microwave absorption. J Colloid Interface Sci 2025; 681:365-375. [PMID: 39612668 DOI: 10.1016/j.jcis.2024.11.160] [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: 09/04/2024] [Revised: 11/10/2024] [Accepted: 11/21/2024] [Indexed: 12/01/2024]
Abstract
Lightweight microwave absorbing structures have wide applications in aerospace and military equipment. In general, honeycomb sandwich structure is regarded as an ideal choice. However, traditional honeycomb sandwich structure designs have limitations in improving absorption bandwidth, and their impact resistance remains unremarkable. Herein, a novel microwave absorbing honeycomb sandwich structure (MAHSS) has been thoroughly investigated through both theoretical and experimental validations. The MAHSS is crafted using a glass fiber (GF)/epoxy composite that is coated with reduced graphene oxide (RGO) for enhanced performance. The middle honeycomb layer of MAHSS is arranged transversely to add more interface. When the honeycomb core has 2 layers and a wall thickness of 2.4 mm in MAHSS, the maximum achievable bandwidth is 13.6 GHz, while the minimum reflection loss (RLmin) reaches -24.02 dB under TE mode. The mechanical properties of the MAHSS were evaluated by compression test and drop weight impact testing. The MAHSS exhibits excellent compression and impact resistance, accompanied by self-recovery performance post-unloading. It still did not penetrate under an impact energy of 150 J, absorbing up to 123 J of energy. This work provides theoretical guidance and technical support for designing and preparing structural and functional integration microwave absorption materials.
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Affiliation(s)
- Shaoliang Huang
- Shanxi Province Key Laboratory of Functional Polymer Composite Materials, College of Materials Science and Engineering, North University of China, Taiyuan 030051, China.
| | - Kai Wen
- Shanxi Province Key Laboratory of Functional Polymer Composite Materials, College of Materials Science and Engineering, North University of China, Taiyuan 030051, China.
| | - Yancheng Liu
- Shanxi Province Key Laboratory of Functional Polymer Composite Materials, College of Materials Science and Engineering, North University of China, Taiyuan 030051, China
| | - Congya Wu
- Shanxi Province Key Laboratory of Functional Polymer Composite Materials, College of Materials Science and Engineering, North University of China, Taiyuan 030051, China
| | - Xiaomei Du
- Shanxi Province Key Laboratory of Functional Polymer Composite Materials, College of Materials Science and Engineering, North University of China, Taiyuan 030051, China
| | - Chaobo Liang
- Shanxi Province Key Laboratory of Functional Polymer Composite Materials, College of Materials Science and Engineering, North University of China, Taiyuan 030051, China
| | - Quanjin Ma
- School of System Design and Intelligent Manufacturing, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yaqing Liu
- Shanxi Province Key Laboratory of Functional Polymer Composite Materials, College of Materials Science and Engineering, North University of China, Taiyuan 030051, China.
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2
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Du L, Li Y, Zhou Q, Zhang L, Shi T, Wang X, Zhang J, Zhao J, Wang J, Fan X. Facilitative preparation of graphene/cellulose aerogels with tunable microwave absorption properties for ultra-lightweight applications. J Colloid Interface Sci 2025; 679:987-994. [PMID: 39418901 DOI: 10.1016/j.jcis.2024.10.057] [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: 08/02/2024] [Revised: 10/05/2024] [Accepted: 10/11/2024] [Indexed: 10/19/2024]
Abstract
Graphene aerogels, as a novel type of carbon-based composite material, have shown great potential in the field of wave absorption due to its characteristics of high conductivity, adjustable structure and good corrosion resistance. It is of great significance to precisely control the dielectric properties of graphene aerogel composites by effectively adjusting their microstructures through the preparing process design, ultimately leading to improve their wave-absorbing performances. In this study, two kinds of graphene/cellulose aerogel composites with three-dimensional porous structures, were successfully prepared using graphene and short staple cellulose as raw materials via the freeze-drying method based on the dissolution-regeneration strategy. A comparative analysis was conducted to examine the differences of microstructures, dielectric properties and corresponding electromagnetic wave absorption performances, which reveals that the graphene/cellulose aerogel composites with graphene nanosheets incorporated into the cellulose matrix realize superior absorbing performances. The graphene/cellulose aerogel composite with a 32 wt% graphene addition realizes effective electromagnetic wave absorbing (reflection loss less than -10 dB) in the whole X-band (8-12.4 GHz) in a relatively large thickness range (3.9-4.7 mm). The densities of the proposed aerogel are no more than 0.02 g/cm3, demonstrating great potential for excellent lightweight microwave absorbing materials. The multiscale electromagnetic wave absorption mechanism is summarized, which would provide an important reference for designing ultra-lightweight absorbing materials with perfect absorption in wideband.
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Affiliation(s)
- Lifei Du
- College of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China.
| | - Yuekun Li
- College of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Qian Zhou
- College of Science, Xi'an University of Posts and Telecommunications, Xi'an 710121, China.
| | - Liangqing Zhang
- College of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Tiantian Shi
- College of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Xinlei Wang
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Jinshang Zhang
- College of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Jing Zhao
- College of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Jiong Wang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
| | - Xiaomeng Fan
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China.
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3
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Wu T, Ren F, Guo Z, Wang J, Zong Z, Wang L, Jin Y, Chen Z, Ren P. Hierarchical Assembly of Ternary MOF-Derived Sandwich Composites for High-Efficiency Tunable Electromagnetic Wave Absorption. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2407599. [PMID: 39478353 DOI: 10.1002/smll.202407599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2024] [Revised: 09/30/2024] [Indexed: 12/28/2024]
Abstract
The proliferation of electronic devices drives the adoption of electromagnetic wave (EMW) absorbing materials to mitigate electromagnetic pollution. Metal-organic frameworks (MOFs) reveal great potential in EMW absorption field due to their unique pore structure and outstanding physicochemical properties. However, single MOFs are difficult to achieve both efficient absorption and wide frequency coverage owing to the limited electromagnetic properties and structural composition. Herein, a sandwich-like ternary MOF composite is successfully synthesized through a hierarchical assembly strategy. Following high-temperature treatment, the materials are converted into nitrogen-doped porous carbon with magnetic metals, non-magnetic metal oxides, and carbon nanotubes on the surface (labeled as TiO2/C@Co/N/C@CNT). The unique sandwich structure of the resulting derivatives provides a multi-level microstructure and multi-component synergistic effects, significantly enhancing electromagnetic wave absorption capabilities and broadening the effective absorption bandwidth (EAB). At 1.8 mm matching thicknesses, the material achieves a reflection loss of -56.3 dB and a 6.6 GHz EAB. Adjusting the matching thicknesses to 2.3 and 3.1 mm extends the EAB to 6.1-18 GHz, with absorption peaks of -47.6 and -47.1 dB. This work offers a novel guidance for constructing advanced MOF-derived materials with ultra-broadband EAB and strong EMW absorption through meticulous structural design and multiple components combination.
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Affiliation(s)
- Tong Wu
- School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, 710048, China
| | - Fang Ren
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, 710048, China
| | - Zhengzheng Guo
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, 710048, China
| | - Jiaqi Wang
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, 710048, China
| | - Ze Zong
- School of Aeronautics and Astronautics, Robotic Satellite Key Laboratory of Sichuan Province, Sichuan University, Chengdu, 610065, China
| | - Lunwu Wang
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, 710048, China
| | - Yanling Jin
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, 710048, China
| | - Zhengyan Chen
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, 710048, China
| | - Penggang Ren
- School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, 710048, China
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, 710048, China
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4
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Jiao Y, Song Q, Yang X, Yuan R, Zhao D, Zhao Y, Shen Q, Li H. Strong and weak interface synergistic enhance the mechanical and microwave absorption properties of alumina. J Colloid Interface Sci 2024; 680:1007-1015. [PMID: 39549345 DOI: 10.1016/j.jcis.2024.11.044] [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: 09/02/2024] [Revised: 10/27/2024] [Accepted: 11/07/2024] [Indexed: 11/18/2024]
Abstract
Multifaceted balance makes the design of ceramics difficult but is urgently needed. This work purposes to grow uniform edge-rich graphene (ERG) on alumina (Al2O3/ERG) in-situ, then constructs a discontinuous conductive, strengthening and toughening network of crosslinked ERG by mixing Al2O3/ERG with Al2O3 and sintering. Under the guarantee of the tight-bound covalent interface, ERG and doping Al2O3 strengthen and toughen the ceramic by synergistic effect of weak and strong interface. And doping Al2O3 interrupts the conductive network of ERG to improve the impedance matching and endow material with moderate electromagnetic wave (EMW) loss capacity. The optimal flexural strength and fracture toughness of the composite ceramic reach 333.04 MPa and 12.43 MPa⋅m1/2, respectively. Meanwhile, it can absorb 80 % or more of the incident EMW in X-band with a matching thickness of 2 mm. This work takes full advantage of ERG to prepare load-bearing EMW absorbing ceramics, which expands the idea for material design.
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Affiliation(s)
- Yameng Jiao
- State Key Laboratory of Solidification Processing, Shannxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an 710072, China
| | - Qiang Song
- State Key Laboratory of Solidification Processing, Shannxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Xu Yang
- State Key Laboratory of Solidification Processing, Shannxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an 710072, China
| | - Ruimei Yuan
- Academy of Advanced Interdisciplinary Research, Xidian University, China
| | - Di Zhao
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China
| | - Yuanxiao Zhao
- State Key Laboratory of Solidification Processing, Shannxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an 710072, China
| | - Qingliang Shen
- State Key Laboratory of Solidification Processing, Shannxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Hejun Li
- State Key Laboratory of Solidification Processing, Shannxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an 710072, China.
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5
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Wang W, Ibarlucea B, Huang C, Dong R, Al Aiti M, Huang S, Cuniberti G. Multi-metallic MOF based composites for environmental applications: synergizing metal centers and interactions. NANOSCALE HORIZONS 2024; 9:1432-1474. [PMID: 38984482 DOI: 10.1039/d4nh00140k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
The escalating threat of environmental issues to both nature and humanity over the past two decades underscores the urgency of addressing environmental pollutants. Metal-organic frameworks (MOFs) have emerged as highly promising materials for tackling these challenges. Since their rise in popularity, extensive research has been conducted on MOFs, spanning from design and synthesis to a wide array of applications, such as environmental remediation, gas storage and separation, catalysis, sensors, biomedical and drug delivery systems, energy storage and conversion, and optoelectronic devices, etc. MOFs possess a multitude of advantageous properties such as large specific surface area, tunable porosity, diverse pore structures, multi-channel design, and molecular sieve capabilities, etc., making them particularly attractive for environmental applications. MOF-based composites inherit the excellent properties of MOFs and also exhibit unique physicochemical properties and structures. The tailoring of central coordinated metal ions in MOFs is critical for their adaptability in environmental applications. Although many reviews on monometallic, bimetallic, and polymetallic MOFs have been published, few reviews focusing on MOF-based composites with monometallic, bimetallic, and multi-metallic centers in the context of environmental pollutant treatment have been reported. This review addresses this gap by providing an in-depth overview of the recent progress in MOF-based composites, emphasizing their applications in hazardous gas sensing, electromagnetic wave absorption (EMWA), and pollutant degradation in both aqueous and atmospheric environments and highlighting the importance of the number and type of metal centers present. Additionally, the various categories of MOFs are summarized. MOF-based composites demonstrate significant promise in addressing environmental challenges, and this review provides a clear and valuable perspective on their potential in environmental applications.
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Affiliation(s)
- Wei Wang
- Institute for Materials Science and Max Bergmann Center for Biomaterials, TUD Dresden University of Technology, Dresden, 01062, Germany.
| | - Bergoi Ibarlucea
- Institute for Materials Science and Max Bergmann Center for Biomaterials, TUD Dresden University of Technology, Dresden, 01062, Germany.
- TECNALIA, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastian, 20009, Spain
| | - Chuanhui Huang
- Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, TUD Dresden University of Technology, Mommsenstrasse 4, 01062 Dresden, Germany
| | - Renhao Dong
- Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, TUD Dresden University of Technology, Mommsenstrasse 4, 01062 Dresden, Germany
| | - Muhannad Al Aiti
- Institute for Materials Science and Max Bergmann Center for Biomaterials, TUD Dresden University of Technology, Dresden, 01062, Germany.
- Dresden Center for Nanoanalysis, Technische Universität Dresden, 01062 Dresden, Germany
| | - Shirong Huang
- Institute for Materials Science and Max Bergmann Center for Biomaterials, TUD Dresden University of Technology, Dresden, 01062, Germany.
| | - Gianaurelio Cuniberti
- Institute for Materials Science and Max Bergmann Center for Biomaterials, TUD Dresden University of Technology, Dresden, 01062, Germany.
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6
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Yan S, Shao S, Tang Y, Zhang X, Guo C, Wang L, Liu J, Wu L, Wang F. Ultralight Hierarchical Fe 3O 4/MoS 2/rGO/Ti 3C 2T x MXene Composite Aerogels for High-Efficiency Electromagnetic Wave Absorption. ACS APPLIED MATERIALS & INTERFACES 2024; 16:36962-36972. [PMID: 38959083 DOI: 10.1021/acsami.4c05903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Aerogel-based composites, renowned for their three-dimensional (3D) network architecture, are gaining increasing attention as lightweight electromagnetic (EM) wave absorbers. However, attaining high reflection loss, broad effective absorption bandwidth (EAB), and ultrathin thickness concurrently presents a formidable challenge, owing to the stringent demands for precise structural regulation and incorporation of magnetic/dielectric multicomponents with synergistic loss mechanisms within the 3D networks. In this study, we successfully synthesized a 3D hierarchical porous Fe3O4/MoS2/rGO/Ti3C2Tx MXene (FMGM) composite aerogel via directional freezing and subsequent heat treatment processes. Owing to their ingenious structure and multicomponent design, the FMGM aerogels, featured with abundant heterogeneous interface structure and magnetic/dielectric synergism, show exceptional impedance matching characteristics and diverse EM wave absorption mechanisms. After optimization, the prepared ultralight (6.4 mg cm-3) FMGM-2 aerogel exhibits outstanding EM wave absorption performance, achieving a minimal reflection loss of -66.92 dB at a thickness of 3.61 mm and an EAB of 6.08 GHz corresponding to the thickness of 2.3 mm, outperforming most of the previously reported aerogel-based absorbing materials. This research presents an effective strategy for fabricating lightweight, ultrathin, highly efficient, and broad band EM wave absorption materials.
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Affiliation(s)
- Shiyao Yan
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, P. R. China
| | - Shiping Shao
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, P. R. China
| | - Yunxiang Tang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, P. R. China
| | - Xin Zhang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, P. R. China
| | - Chan Guo
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, P. R. China
| | - Luxue Wang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, P. R. China
| | - Jiurong Liu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, P. R. China
| | - Lili Wu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, P. R. China
| | - Fenglong Wang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, P. R. China
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Abazari R, Ghorbani N, Shariati J, Varma RS, Qian J. Copper-Based Bio-MOF/GO with Lewis Basic Sites for CO 2 Fixation into Cyclic Carbonates and C-C Bond-Forming Reactions. Inorg Chem 2024; 63:12667-12680. [PMID: 38916987 DOI: 10.1021/acs.inorgchem.4c02036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
Several measures, including crude oil recovery improvement and carbon dioxide (CO2) conversion into valuable chemicals, have been considered to decrease the greenhouse effect and ensure a sustainable low-carbon future. The Knoevenagel condensation and CO2 fixation have been introduced as two principal solutions to these challenges. In the present study for the first time, bio-metal-organic frameworks (MOF)(Cu)/graphene oxide (GO) nanocomposites have been used as catalytic agents for these two reactions. In view of the attendance of amine groups, biological MOFs with NH2 functional groups as Lewis base sites protruding on the channels' internal surface were used. The bio-MOF(Cu)/20%GO performs efficaciously in CO2 fixation, leading to more than 99.9% conversion with TON = 525 via a solvent-free reaction under a 1 bar CO2 atmosphere. It has been shown that these frameworks are highly catalytic due to the Lewis basic sites, i.e., NH2, pyrimidine, and C═O groups. Besides, the Lewis base active sites exert synergistic effects and render bio-MOF(Cu)/10%GO nanostructures as highly efficient catalysts, significantly accelerating Knoevenagel condensation reactions of aldehydes and malononitrile as substrates, thanks to the high TOF (1327 h-1) and acceptable reusability. Bio-MOFs can be stabilized in reactions using GO with oxygen-containing functional groups that contribute as efficient substitutes, leading to an expeditious reaction speed and facilitating substrate absorption.
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Affiliation(s)
- Reza Abazari
- Department of Chemistry, Faculty of Science, University of Maragheh, P.O. Box 55181-83111 Maragheh, Iran
| | - Nasrin Ghorbani
- Department of Chemistry, Faculty of Science, University of Maragheh, P.O. Box 55181-83111 Maragheh, Iran
| | - Jafar Shariati
- Department of Chemical Engineering, Darab Branch, Islamic Azad University, P.O. Box 74817-83143 Darab, Iran
| | - Rajender S Varma
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, São Carlos 13565-905, São Paulo, Brazil
| | - Jinjie Qian
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, Zhejiang, P. R. China
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Guo S, Cai Y, Cheng L, Yuan Y, Wang Y, Yu H, Hu Z, Chen D, Yuan H. Ultraflexible Ultrathin 3D/1D Hierarchical Interpenetrating Ni-MOF/CNT Buckypaper Composites: Microstructures and Microwave Absorption Properties. ACS APPLIED MATERIALS & INTERFACES 2024; 16:32713-32726. [PMID: 38860983 DOI: 10.1021/acsami.4c05050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
Metal-organic frameworks (MOFs) have attracted attention due to their designable structures. However, recently reported MOF microwave-absorbing materials (MAMs) are dominated by powders. It remains a challenge to design MOF/carbon nanotube (CNT) composite structures that combine the mechanical properties of self-supporting flexibility with excellent microwave absorption. This work involves the hydrothermal approach to grow Ni-MOF of different microstructures in situ on the CNT monofilament by adjusting the molar ratio of nickel ions to organic ligands. Subsequently, an ultraflexible self-supporting Ni-MOF/CNT buckypaper (BP) is obtained by directional gas pressure filtration technology. The BP porous skeleton and the Ni-MOF with a unique porous structure provide effective impedance matching. The CNTs contribute to the conduction loss, the cross-scale heterogeneous interface generated by Ni-MOF/CNT BP provides rich interfacial polarization loss, and the porous structure complicates the microwave propagation path. All factors work together to give Ni-MOF/CNT BP an excellent microwave absorption capacity. The minimum reflection losses of Ni-MOF/CNT BPs decorated with granular-, hollow porous prism-, and porous prism-shaped Ni-MOFs reach -50.8, -57.8, and -43.3 dB, respectively. The corresponding effective absorption bandwidths are 4.5, 6.3, and 4.8 GHz, respectively. Furthermore, BPs show remarkable flexibility as they can be wound hundreds of times around a glass rod with a diameter of 4 mm without structural damage. This work presents a new concept for creating ultraflexible self-supported MOF-based MAMs with hierarchical interpenetrating porous structures, with potential application advantages in the field of flexible electronics.
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Affiliation(s)
- Siyu Guo
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, P. R. China
| | - Yanzhi Cai
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, P. R. China
| | - Laifei Cheng
- Science and Technology on Thermostructure Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Yibing Yuan
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, P. R. China
| | - Yuhan Wang
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, P. R. China
| | - Haiming Yu
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, P. R. China
| | - Zhongyi Hu
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, P. R. China
| | - Dengpeng Chen
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, P. R. China
| | - Hudie Yuan
- College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, P. R. China
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9
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Wei J, Shao G, Huang X. Freeze-Cast Ni-MOF Nanobelts/Chitosan-Derived Magnetic Carbon Aerogels for Broadband Electromagnetic Wave Absorption. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38624131 DOI: 10.1021/acsami.4c03543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
The exceptional benefits of carbon aerogels, including their low density and tunable electrical characteristics, infuse new life into the realm of creating ultralight electromagnetic wave absorbers. The clever conceptualization and straightforward production of carbon-based aerogels, which marry aligned microporous architecture with nanoscale heterointerfaces and atomic-scale defects, are vital for effective multiscale microwave response. We present an uncomplicated synthesis method for crafting aligned porous Ni@C nanobelts anchored on N, S-doped carbon aerogels (Ni@C/NSCAs), featuring multiscale structural intricacies─achieved through the pyrolysis of freeze-cast Ni-MOF nanobelts and chitosan aerogel composites. The well-ordered porous configuration, combined with multiple heterointerfaces adopting a "nanoparticles-nanobelts-nanosheets" contact schema, along with a wealth of defects, adeptly modulates conductive, polarization, and magnetic losses to realize an equilibrium in impedance matching. This magnetically doped carbon aerogel showcases an impressive effective absorption bandwidth of 8.96 GHz and a minimum reflection loss of -68.82 dB, while maintaining an exceptionally low filler content of 1.75 wt %. Additionally, the applied coating exhibits an astonishing radar cross-section reduction of 51.7 dB m2, signifying its superior radar wave scattering capabilities. These results offer key insights into the attainment of broad-spectrum microwave absorption features by enhancing the multiscale structure of current aerogels.
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Affiliation(s)
- Jiawen Wei
- NUIST-TianChang Research Institute, Nanjing University of Information Science & Technology, Nanjing 210044, China
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Gaofeng Shao
- NUIST-TianChang Research Institute, Nanjing University of Information Science & Technology, Nanjing 210044, China
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Xiaogu Huang
- NUIST-TianChang Research Institute, Nanjing University of Information Science & Technology, Nanjing 210044, China
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China
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10
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Meng L, Wang J, Qi J, Liu X, Li L, Yun J, Wang G, Yan J, Bai J. Yolk-shell construction of Co 0.7Fe 0.3 modified with dual carbon for broadband microwave absorption. J Colloid Interface Sci 2024; 659:945-958. [PMID: 38219313 DOI: 10.1016/j.jcis.2024.01.052] [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: 10/19/2023] [Revised: 01/05/2024] [Accepted: 01/08/2024] [Indexed: 01/16/2024]
Abstract
The rational and effective combination of multicomponent materials and the design of subtle microstructure for efficient microwave absorption are still challenging. In this study, carbon-coated CoFe with heterogeneous interfaces was space-restricted in the void space of hollow mesoporous carbon spheres through a facile approach involving electrostatic adsorption and annealing, and a high-performance microwave absorber (MAs) (denoted as Co0.7Fe0.3@C@void@C) was successfully prepared. The heterostructure, three-dimensional lightweight porous morphology, and electromagnetic synergy strategy enabled the Co0.7Fe0.3@C@void@C material with yolk-shell structure to exhibit surprising microwave absorption properties. When the annealing temperature and filler loading were 550° C and 15 wt%, respectively, the composites exhibited an effective absorption bandwidth (EAB) of 7.16 GHz at 2.48 mm and a minimum reflection loss of -24.1 dB at 2.11 mm. A maximum EAB of 7.21 GHz at 2.37 mm could be achieved for the composite prepared with an annealing temperature of 650° C. In addition, radar cross-section experiments demonstrated, the potential practical applicability of Co0.7Fe0.3@C@void@C. This work expands a new avenue to develop high-performance and lightweight MAs with ingenious microstructure.
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Affiliation(s)
- Lizheng Meng
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Jiahao Wang
- School of Information Science and Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Junyao Qi
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Xiangling Liu
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Ling Li
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Jiangni Yun
- School of Information Science and Technology, Northwest University, Xi'an 710127, People's Republic of China; Department of Physics, McGill University, Montreal, Quebec H3A 2T8, Canada
| | - Gang Wang
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China.
| | - Junfeng Yan
- School of Information Science and Technology, Northwest University, Xi'an 710127, People's Republic of China.
| | - Jintao Bai
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
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11
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Xie H, Li J, Yang R, Yang J, Wang T, Wang Q. Controllable fabrication of CoNi bimetallic alloy for high-performance electromagnetic wave absorption. RSC Adv 2024; 14:9791-9797. [PMID: 38528925 PMCID: PMC10961963 DOI: 10.1039/d3ra08896k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 03/14/2024] [Indexed: 03/27/2024] Open
Abstract
With the coming era of artificial intelligence (AI) dominated by high-tech electronics, developing high-performance microwave absorption materials (MAMs) is imperative to solve the problem of increasing electromagnetic inference and pollution. Herein, a metal-organic framework (MOF)-derived CoNi bimetallic alloy (CoNi/C) with an irregular rod-like structure is prepared by a thermal reduction method. Introducing the CoNi alloy facilitates the balance between conduction loss and polarization loss and forms good impedance matching, leading to excellent microwave absorption performance. Interestingly, the optimization of absorption performance can be further achieved by controllably modulating the molar ratio of Co and Ni (Co2+/Ni2+). As expected, the obtained CoNi/C delivers excellent microwave absorption performance with a minimum reflection loss (RLmin) of -50.80 dB at 10.40 GHz and an effective absorption bandwidth (EAB) of 3.28 GHz (8.91-12.19 GHz) with a filler loading of 50 wt% at 2.0 mm. In addition, the CoNi/C can reach a maximum EAB of 4.77 GHz (12.99-17.76 GHz) at a low thickness of 1.5 mm, spanning nearly the entire Ku band. The CoNi3/C also exhibits an impressive RLmin of -44.84 dB at 3.28 GHz in the S band. This work offers a novel strategy to modulate the magnetic/electric properties of MOF-derived MAMs.
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Affiliation(s)
- Hai Xie
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences Beijing 100049 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Jinmei Li
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Rui Yang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Juan Yang
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Tingmei Wang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences Beijing 100049 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Qihua Wang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences Beijing 100049 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
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12
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Liu X, Wang J, Zhong J, Meng L, Yun J, Bai J, Wang G, Yan J. Construction of Hierarchical Yolk-Shell Co/N-Dope C@void@C@MoS 2 Composites with Multiple Heterogeneous Interfaces toward Broadband Electromagnetic Wave Absorption. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7415-7429. [PMID: 38303129 DOI: 10.1021/acsami.3c16307] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
The synthesis of materials with a multicomponent hierarchical structure is an essential strategy for achieving high-performance electromagnetic wave (EMW) absorption. However, conventional design strategies face challenges in terms of the rational construction of specific architecture. In this study, we employ a combined space-restricted and hierarchical construction strategy to surface-plant MoS2 nanosheets on yolk-shell structural carbon-modified Co-based composites, leading to the development of high-performance Co/NC@void@C@MoS2 absorbers with advanced architecture. The surface-planted MoS2 nanosheets, the Co/NC magnetic yolk, and the dielectric carbon shell work together to enhance the impedance matching characteristics and synergistic loss capabilities in the composites. Experimental results indicate that Co/NC@void@C-700@MoS2 exhibited the best absorption performance with an effective absorption bandwidth of 7.54 GHz (at 2.05 mm) and a minimum reflection loss of -60.88 dB (at 1.85 mm). Furthermore, radar cross-section simulation results demonstrate that Co/NC@void@C-700@MoS2 effectively suppresses the scattering and transmission of EMWs on perfect electric conductor substrates, implying its superior practical application value. This study provides inspiration and experimental basis for designing and optimizing EMW absorption materials with hierarchical yolk-shell architecture.
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Affiliation(s)
- Xiangling Liu
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Jiahao Wang
- School of Information Science and Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Jiahao Zhong
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Lizheng Meng
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Jiangni Yun
- School of Information Science and Technology, Northwest University, Xi'an 710127, People's Republic of China
- Department of Physics, McGill University, Montreal, Quebec H3A 2T8, Canada
| | - Jintao Bai
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Gang Wang
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Junfeng Yan
- School of Information Science and Technology, Northwest University, Xi'an 710127, People's Republic of China
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13
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Wang S, Liu Q, Li S, Huang F, Zhang H. Joule-Heating-Driven Synthesis of a Honeycomb-Like Porous Carbon Nanofiber/High Entropy Alloy Composite as an Ultralightweight Electromagnetic Wave Absorber. ACS NANO 2024. [PMID: 38286018 DOI: 10.1021/acsnano.3c11408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
High entropy alloys (HEA) have garnered significant attention in electromagnetic wave (EMW) absorption due to their efficient synergism among multiple components and tunable electronic structures. However, their high density and limited chemical stability hinder their progress as lightweight absorbers. Incorporating HEA with carbon offers a promising solution, but synthesizing stable HEA/carbon composite faces challenges due to the propensity for phase separation during conventional heat treatments. Moreover, EMW absorption mechanisms in HEAs may be different from established empirical models due to their high-entropy effect. This underscores the urgent need to synthesize stable and lightweight HEA/carbon absorbers and uncover their intrinsic absorption mechanisms. Herein, we successfully integrated a quinary FeCoNiCuMn HEA into a honeycomb-like porous carbon nanofiber (HCNF) using electrostatic spinning and the Joule-heating method. Leveraging the inherent lattice distortion effects and honeycomb structure, the HCNF/HEA composite demonstrates outstanding EMW absorption properties at an ultralow filler loading of 2 wt %. It achieves a minimum reflection loss of -65.8 dB and boasts a maximum absorption bandwidth of up to 7.68 GHz. This study not only showcases the effectiveness of combining HCNF with HEA, but also underscores the potential of Joule-heating synthesis for developing lightweight HEA-based absorbers.
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Affiliation(s)
- Shipeng Wang
- Anhui Key Laboratory of Magnetic Functional Materials and Devices, School of Materials Science and Engineering, Anhui University, Hefei, Anhui, 230601, P. R. China
| | - Qiangchun Liu
- School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000, P. R. China
| | - Shikuo Li
- Anhui Key Laboratory of Magnetic Functional Materials and Devices, School of Materials Science and Engineering, Anhui University, Hefei, Anhui, 230601, P. R. China
| | - Fangzhi Huang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, 230601, P. R. China
| | - Hui Zhang
- Anhui Key Laboratory of Magnetic Functional Materials and Devices, School of Materials Science and Engineering, Anhui University, Hefei, Anhui, 230601, P. R. China
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14
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Feng S, Zhang H, Wang H, Zhao R, Ding X, Su H, Zhai F, Li T, Ma M, Ma Y. Fabrication of cobalt-zinc bimetallic oxides@polypyrrole composites for high-performance electromagnetic wave absorption. J Colloid Interface Sci 2023; 652:1631-1644. [PMID: 37666195 DOI: 10.1016/j.jcis.2023.08.195] [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: 06/06/2023] [Revised: 08/28/2023] [Accepted: 08/30/2023] [Indexed: 09/06/2023]
Abstract
Composite materials that combine magnetic and dielectric losses offer a potential solution to enhance impedance match and significantly improve microwave absorption. In this study, Co3O4/ZnCo2O4 and ZnCo2O4/ZnO with varying metal oxide compositions are successfully synthesized, which are achieved by modifying the ratios of Co2+ and Zn2+ ions in the CoZn bimetallic metal-organic framework (MOF) precursor, followed by a high-temperature oxidative calcination process. Subsequently, a layer of polypyrrole (PPy) is coated onto the composite surfaces, resulting in the formation of core-shell structures known as Co3O4/ZnCo2O4@PPy (CZCP) and ZnCo2O4/ZnO@PPy (ZCZP) composites. The proposed method allows for rapid adjustments to the metal oxide composition within the inner shell, enabling the creation of composites with varying degrees of magnetic losses. The inclusion of PPy in the outer shell serves to enhance the bonding strength of the entire composite structure while contributing to conductive and dielectric losses. In specific experimental conditions, when the loading is set at 50 wt%, the CZCP composite exhibits an effective absorption bandwidth (EAB) of 5.58 GHz (12.42 GHz-18 GHz) at a thickness of 1.53 mm. Meanwhile, the ZCZP composite demonstrates an impressive minimum reflection loss (RLmin) of -71.2 dB at 13.04 GHz, with a thickness of 1.84 mm. This study offers a synthesis strategy for designing absorbent composites that possess light weight and excellent absorptive properties, thereby contributing to the advancement of electromagnetic wave absorbing materials.
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Affiliation(s)
- Shixuan Feng
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Hao Zhang
- Technical Center, Xi'an Aerospace Sunvalor Chemical Co., Ltd, Xi'an 710086, PR China
| | - Haowen Wang
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Rui Zhao
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Xuan Ding
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Huahua Su
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Futian Zhai
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Tingxi Li
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China.
| | - Mingliang Ma
- School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, PR China.
| | - Yong Ma
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China.
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15
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Su X, Wang J, Han M, Liu Y, Zhang B, Huo S, Wu Q, Liu Y, Xu HX. Broadband electromagnetic wave absorption using pure carbon aerogel by synergistically modulating propagation path and carbonization degree. J Colloid Interface Sci 2023; 652:780-788. [PMID: 37619257 DOI: 10.1016/j.jcis.2023.08.113] [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: 07/22/2023] [Revised: 08/15/2023] [Accepted: 08/18/2023] [Indexed: 08/26/2023]
Abstract
Carbon materials were widely used as electromagnetic (EM) wave absorption due to their advantages of light weight, environmental resistance and high electrical conductivity. However, conventional means were typically available by combining carbon and other materials to achieve effective absorption. Herein, a novel strategy using pure carbon aerogel with oriented structure was reported to enhance the EM wave absorption by synergistically modulating the wave propagation path and carbonization degree. The aerogel contained proposed modified carbon nanofibers (MCNF) derived from bacterial cellulose (BC), and core-shell carbon nanofibers @ reduced oxide graphene (CNF@RGO). The oriented structure was induced by the temperature field, which manifests anisotropic EM constitutive parameters (εx ≠ εz) at different directions of incident wave. The carbonization degree was adjusted by varying the carbonization temperature. At the carbonization temperature of 700 °C, the maximum reflection loss and effective absorption bandwidth reached -53.94 dB and 7.14 GHz, respectively, enabling the aerogel to outperform its previous counterparts. To clarify the EM wave mode-of-action in conjunction, physical models of the aerogel were established in addition to finite element simulation and theoretical analysis. Notably, the aerogel with a density of 3.6 mg/cm3 featured ultra-light weight, superhydrophobicity, superior compressibility, and thermal insulation. Our work offers an efficient strategy for designing broadband and multifunctional EM wave absorption materials (EWAMs), promising great potentials in complex stealth equipment.
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Affiliation(s)
- Xiaogang Su
- Key Laboratory of Functional Nanocomposites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China; Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China.
| | - Jun Wang
- Key Laboratory of Functional Nanocomposites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China
| | - Mengjie Han
- Key Laboratory of Functional Nanocomposites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China
| | - Yanan Liu
- Key Laboratory of Functional Nanocomposites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China
| | - Bin Zhang
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Siqi Huo
- Center for Future Materials, University of Southern Queensland, Springfield 4300, Australia
| | - Qilei Wu
- Science and Technology on Electromagnetic Compatibility Laboratory, China Ship Development and Design Centre, Wuhan 430070, China
| | - Yaqing Liu
- Key Laboratory of Functional Nanocomposites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China.
| | - He-Xiu Xu
- Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China.
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16
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Wang C, Feng X, Shang S, Liu H, Song Z, Zhang H. Adsorption of methyl orange from aqueous solution with lignin-modified metal-organic frameworks: Selective adsorption and high adsorption capacity. BIORESOURCE TECHNOLOGY 2023; 388:129781. [PMID: 37730139 DOI: 10.1016/j.biortech.2023.129781] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/07/2023] [Accepted: 09/11/2023] [Indexed: 09/22/2023]
Abstract
The lignin-based metal-organic framework (UIO-g-NL) was prepared by a Schiff base reaction of aminated lignin and the zirconium cluster-based MOF (UIO-66-NH2) as an adsorbent of methyl orange (MO). The results showed that UIO-g-NL maintained the original crystal structure and aminated lignin was successfully introduced after functionalization. UIO-g-NL selectively adsorbed MO from a mixed solution 50 mg/L MO and 50 mg/L methylene blue (MB), with an adsorption efficiency of nearly 100%. In a mixed solution 250 mg/L MB and 250 mg/L MO, UIO-g-NL adsorbed both dyes with 1120.70 mg/g for MB and 961.54 mg/g for MO. Hydrogen bonding, π-π and NH-π interactions, and electrostatic attraction contribute to the MO adsorption by UIO-g-NL. In the MO/MB mixture, MO adsorption by UIO-g-NL follows the pseudo-second-order kinetic and Freundlich isotherm models, which is an endothermic, spontaneous, and feasible adsorption process. Furthermore, the MO adsorption efficiency of UIO-g-NL remained high (>90%) after six re-use cycles.
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Affiliation(s)
- Chao Wang
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Lab. of Biomass Energy and Material, Jiangsu Province, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China
| | - Xuezhen Feng
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Lab. of Biomass Energy and Material, Jiangsu Province, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China
| | - Shibin Shang
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Lab. of Biomass Energy and Material, Jiangsu Province, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China
| | - He Liu
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Lab. of Biomass Energy and Material, Jiangsu Province, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China
| | - Zhanqian Song
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Lab. of Biomass Energy and Material, Jiangsu Province, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China
| | - Haibo Zhang
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Lab. of Biomass Energy and Material, Jiangsu Province, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China.
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17
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Wang YQ, Ding R, Zhang YC, Liu BW, Fu Q, Zhao HB, Wang YZ. Gradient Hierarchical Hollow Heterostructures of Ti 3C 2T x@rGO@MoS 2 for Efficient Microwave Absorption. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37366118 DOI: 10.1021/acsami.3c06860] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Heterostructure engineering has emerged as a promising approach for creating high-performance microwave absorption materials in various applications such as advanced communications, portable devices, and military fields. However, achieving strong electromagnetic wave attenuation, good impedance matching, and low density in a single heterostructure remains a significant challenge. Herein, a unique structural design strategy that employs a hollow structure coupled with gradient hierarchical heterostructures to achieve high-performance microwave absorption is proposed. MoS2 nanosheets are uniformly grown onto the double-layered Ti3C2Tx MXene@rGO hollow microspheres through self-assembly and sacrificial template techniques. Notably, the gradient hierarchical heterostructures, comprising a MoS2 impedance matching layer, a reduced graphene oxide (rGO) lossy layer, and a Ti3C2Tx MXene reflective layer, have demonstrated significant improvements in impedance matching and attenuation capabilities. Additionally, the incorporation of a hollow structure can further improve microwave absorption while reducing the overall composite density. The distinctive gradient hollow heterostructures enable Ti3C2Tx@rGO@MoS2 hollow microspheres with exceptional microwave absorption properties. The reflection loss value reaches as strong as -54.2 dB at a thin thickness of 1.8 mm, and the effective absorption bandwidth covers the whole Ku-band, up to 6.04 GHz. This work provides an exquisite perspective on heterostructure engineering design for developing next-generation microwave absorbers.
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Affiliation(s)
- Yan-Qin Wang
- Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory for Eco-Friendly Polymer Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Rong Ding
- Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory for Eco-Friendly Polymer Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Yu-Chuan Zhang
- Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory for Eco-Friendly Polymer Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Bo-Wen Liu
- Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory for Eco-Friendly Polymer Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Qiang Fu
- College of Polymer Science & Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Hai-Bo Zhao
- Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory for Eco-Friendly Polymer Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Yu-Zhong Wang
- Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory for Eco-Friendly Polymer Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
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