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Article
Chemistry, Multidisciplinary
Bei Li et al.
Summary: Small-sized NiO/Ni particles with heterojunctions were constructed on N-doped hollow carbon spheres using SiO2 as a sacrificing template. The NHCS@NiO/Ni exhibited excellent microwave absorbability with a minimum reflection loss of -44.06 dB and a wider efficient absorption bandwidth of 4.38 GHz, surpassing most reported hollow absorbers. The outstanding performance was attributed to the balanced dielectric loss and optimized impedance matching characteristic of NHCS@NiO/Ni due to the presence of NiO/Ni heterojunctions.
Article
Chemistry, Multidisciplinary
Zhen Zhang et al.
Summary: This study reports a multifunctional thermal management material with high thermal conductivity, efficient electromagnetic wave absorption, and compressibility. The material achieves high thermal conductivity and outstanding electromagnetic wave absorption performance through a vertically aligned carbon fiber framework and a horizontally segregated magnetic network, along with good impedance matching.
Article
Chemistry, Multidisciplinary
Tianbao Zhao et al.
Summary: In this study, Mo2C/C hollow spheres with different structures were prepared and their microwave absorption behavior was investigated. Results showed that MoC1-x/C double-shell hollow spheres with alpha-phase molybdenum carbide exhibited the best microwave absorption properties.
Article
Engineering, Biomedical
Da-Wang Zhao et al.
Summary: Zinc alloys are a new generation material for orthopedic applications due to their physiological effects and degradation properties. However, excessive release of zinc ions during degradation and the inflammatory microenvironment hinder osseointegration. Therefore, it is crucial to modulate the release rate of zinc alloys and give them anti-inflammatory and osteogenic effects through surface modification technology.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Chemistry, Physical
Yuxuan Zeng et al.
Summary: Sonodynamic therapy (SDT) has attracted attention for treating deep-seated tumors or infections due to its non-invasiveness and high tissue-penetrating ability. This study develops a defective homojunction porphyrin-based metal-organic framework (MOF) that greatly enhances sonocatalytic ability for SDT of MRSA-infected osteomyelitis. The MOF structure is modified using acetic acid and benzoic acid, and the defect-induced homojunction structure is found to improve the SDT effect by enhancing ultrasound-triggered reactive oxygen species production.
Article
Chemistry, Multidisciplinary
Biao Zhao et al.
Summary: This study presents the preparation of two biphasic high-entropy (HE) oxides by controlling crystal phases and structural defects. The HE effects in these complex-phase ceramics induce beneficial defects for microwave dissipation. Stress concentrations and lattice distortions at the interface of spinel and perovskite planes result in numerous point defects and stacking faults. By precise regulation of the components' phase, synergistic effects are achieved in rock salt/spinel HE oxides. The intense polarization driven by structural defects and multi-phases leads to excellent microwave absorption performance, with a minimal reflection loss of -54.5 dB. This research provides valuable guidelines for the design of microwave absorbers using HE oxides.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yuan Li et al.
Summary: Interlayer interactions in 2D materials play a crucial role in promoting catalytic performance. This study demonstrates that asymmetric doping of metal nanoparticle clusters in g-C3N4 enhances catalytic efficiency by inducing microwave excitation of interlayer electron delocalization, leading to improved interlayer migration and enhanced microwave disinfection and pneumonia therapy. Hence, structurally modulated asymmetric doping of 2D materials can provide effective solutions for microwave-based disinfection and pneumonia therapy.
Article
Chemistry, Multidisciplinary
Lihua Wu et al.
Summary: A biomimetic nanozyme catalyst with rapid and efficient self-bacteria-killing and wound-healing performances was synthesized. It exhibited excellent antibacterial properties against Staphylococcus aureus by capturing surrounding oxygen species to produce radical oxygen species. Additionally, it promoted wound healing by upregulating fibroblast proliferation and angiogenesis genes.
Article
Chemistry, Multidisciplinary
Xinci Zhang et al.
Summary: This study achieves the uniform dispersion of Ni-single metal atoms (Ni-SAs) within hierarchically porous carbon nanoflowers (Ni-SA/HPCF) through spatial confinement of Ni ions in metal-organic frameworks (MOFs) and subsequent carbonization process. The Ni-SA/HPCF exhibits unexpected electromagnetic wave (EMW) absorption properties with high surface area and abundant mesopores. The uniformly dispersed Ni-SAs break local symmetry of the electronic structure, enhance electrical conductivity, and the unique 3D hierarchical porous morphology improves the impedance matching property, synergistically improving the EMW absorption performance of the Ni-SA/HPCF.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ruitao Li et al.
Summary: Dielectric ceramics are essential in electronic systems, and this research introduces a novel non-perovskite relaxor ferroelectric, Bi6Ti5WO22, which exhibits ultralow loss and highly tunable permittivity, making it highly promising for various applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Congyang Mao et al.
Summary: Confering catalytic defects in sonosensitizers is crucial for enhancing sonodynamic therapy. In this study, 2D catalytic planar defects were designed within Ti3C2 sheets to overcome this challenge. These planar slip dislocations with abundant Ti3+ species can activate O-2, resulting in a significant amount of O-1(2) generation and a high bactericidal capability under ultrasound stimulation. It was found that the 2D catalytic planar defects can intervene in electron transfer through the phonon drag effect, leading to a dramatic decrease in O-2 activation energy.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jianfang Li et al.
Summary: A rapid and effective therapeutic strategy for treating osteomyelitis is reported, utilizing ferroelectric polarization interfacial engineering of BiFeO3/MXene (Ti3C2) triggered by ultrasound. The ferroelectric polarization induced by ultrasound leads to the formation of a piezoelectric field, and the sonoluminescence effect stimulates BiFeO3/Ti3C2 to produce photogenerated carriers. With the synergistic action of the polarization electric field and Schottky junction, the separation of electrons and holes is accelerated, improving the utilization of polarized charges and photogenerated charges, and enhancing the yield of reactive oxygen species. This approach efficiently kills Staphylococcus aureus in a short time with the assistance of ultrasonic heating.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Binhong Qu et al.
Summary: Ultrasensitively selective detection of trace polycyclic aromatic hydrocarbons (PAHs) like phenanthrene (PHE) is achieved by constructing atomically dispersed Zn sites on g-C3N4 nanosheets through thermal polymerization of a Zn-cyanuric acid-melamine supramolecular precursor. The resulting sZn-CN exhibits a wide detection range, ultralow detection limit, and ultrahigh selectivity toward PHE based on the PHE-CN dual ratiometric fluorescence method. The superior detection performance is attributed to the selective adsorption of PHE on the atomic Zn(II)-N-5 sites and the fluorescence quenching mechanism involving the inner filter effect (IFE) and photogenerated electron-transfer process.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Ran Ji et al.
Summary: In this study, TiO2/Fe/C nanocomposites were used as advanced heat conduction-microwave absorption integrated materials (HCMWAIMs) to solve the problems of electromagnetic interference and heat dissipation in miniaturized electronics. The TiO2/Fe/C nanocomposites were prepared through a simple one-step pyrolyzation route and exhibited excellent comprehensive capabilities. It is expected that these nanocomposites will find efficient applications in electronic devices.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Wenchan Sun et al.
Summary: CuCeOx material is applied to treat infectious bacterial osteomyelitis using microwave irradiation. The material generates heat and reactive oxygen species, increasing the thermal sensitivity and permeability of bacterial membranes. Copper ions penetrate the bacterial membrane, react with H2O2, and produce a toxic hydroxyl group, leading to bacterial death. This method effectively treats Staphylococcus aureus-induced osteomyelitis and provides a safe and effective solution for deep tissue infections.
Article
Chemistry, Physical
Bo Jiang et al.
Summary: In this study, novel bamboo-like carbon nanotubes wrapped with controllable-sized Co magnetic nanoparticles were successfully prepared. The electromagnetic wave absorbing properties of the material were effectively tuned by adjusting filler loading, calcination temperature, and template usage. The optimized Co@CNT exhibited superior absorption performance and improved stability through hydrophobic modification.
Article
Chemistry, Physical
Lijia Xu et al.
Summary: The design of lightweight and efficient electromagnetic wave absorbing materials (EWAMs) is crucial for information security and target stealth. Hollow carbon-based confined structures have garnered attention due to their unique electromagnetic wave absorption characteristics. This paper reviews the recent progress on carbon-based hollow EWAMs, covering pure carbon materials, carbon-based composites, design strategies, synthetic methods, and the structure-function relationship of EWAMs. The challenges and prospects for practical applications of hollow carbon-based structures are also discussed.
Article
Chemistry, Multidisciplinary
Wenchao Wang et al.
Summary: This research demonstrates a synergistic strategy of porosity, vacancy, and shallow-state engineering in graphitic carbon nitride (g-C3N4) photocatalyst to enhance its efficiency. By thermally treating the catalyst and doping it with phosphorus, the photocatalyst shows an 800% increase in hydrogen generation and a 5-fold increase in quantum efficiency. The improved performance is attributed to the long-lived shallow charge trapping, which is a result of proton-feeding to the coordinated phosphorus site during the photocatalytic reaction.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Xiaobo Feng et al.
Summary: The successful treatment of osteomyelitis remains a challenge in the field of orthopedics. Researchers have developed a piezoelectric-enhanced sonosensitizer that effectively eliminates bone infection and suppresses inflammation and bone loss.
Article
Materials Science, Multidisciplinary
Jialiang Pan et al.
Summary: This study focuses on the synthesis of uniform Fe3O4 nanoflakes (FNFs) and their composites for microwave absorption. The FNFs, as well as FNFs/CNT and FNF@PPy composites, exhibit excellent microwave absorption performances. These materials provide potential candidates for various microwave absorption applications.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xu Zhang et al.
Summary: Defect engineering modified graphite carbon nitride (g-C3N4) with dual defect sites, -C N groups and N vacancies, has been found to significantly enhance the photocatalytic production of H2O2. The dual defect sites form an electron-rich structure and lead to a more localized charge density distribution, which improves light absorption, carrier separation, selectivity, and activity of H2O2 generation. The N vacancies effectively adsorb and activate O-2, while the -C N groups facilitate the adsorption of H+, synergistically promoting H2O2 generation. The modified g-C3N4 achieved a high H2O2 generation rate and apparent quantum efficiency, surpassing previously reported g-C3N4-based photocatalysts.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Xinci Zhang et al.
Summary: This study reports a method to synthesize three-dimensional honeycomb-like M-NxC materials with excellent electromagnetic wave absorption properties. Theoretical calculations explain the mechanism of dielectric loss, providing insights for the design of efficient electromagnetic wave absorbing materials.
NANO-MICRO LETTERS
(2022)
Review
Chemistry, Multidisciplinary
Ming Qin et al.
Summary: Comprehensive views on dielectric loss mechanisms provide important guidance for understanding the attenuation behavior of materials. Current researches focus more on materials synthesis rather than in-depth mechanism study. Therefore, further research on in-depth mechanisms, emphasis on new dielectric loss mechanisms, and new modulation strategies are needed to achieve simple and effective EM wave attenuation behavior modulation.
Article
Engineering, Environmental
Baoxin Fan et al.
Summary: This study presents a method to prepare ultrathin carbon nitride hollow structures using a salt-assisted freeze-drying and calcining strategy. The structure of the hollow structures can be modulated by changing the salt type, precursor/salt mass ratio, and calcining temperature. The results show that the ultrathin hollow micro-polyhedrons have high conductivity and permittivity, contributing to enhanced absorption and impedance matching.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Kang Zhang et al.
Summary: This study presents a facile method to improve the microwave absorption properties of ferrites through direct fluorination. The fluorinated Fe3O4 (F-Fe3O4) exhibits a unique 'magnetoelectric collaborative resonance' (MDR) effect, with double dielectric and magnetic resonance peaks at 14.8 and 16.6 GHz. The smaller energy gap derived from fluorine doping facilitates electron hopping and accumulation, inducing magnetic exchange interactions and the Maxwell-Wagner effect. As a result, F-Fe3O4 shows improved microwave absorption properties compared to pristine Fe3O4.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Wenhuan Huang et al.
Summary: In this study, a high-temperature explosion strategy was used to successfully assemble hierarchical porous carbon sponge with Co-Fe decoration. The as-constructed hybrid material exhibited superior electromagnetic wave absorption performance. Off-axis electron holography and X-ray absorption spectroscopy analysis revealed the presence of polarized nanodomain and the mutual interaction between metal clusters and carbon matrix responsible for the improved absorption.
NANO-MICRO LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Minghang Li et al.
Summary: Heterogeneous interface design is a feasible way to enhance the electromagnetic wave absorbing performance of dielectric materials. This study proposes a Ti3C2Tx/MoS2 self-rolling rod-based foam, which shows excellent interfacial polarization and high electromagnetic wave absorption performance at ultralow density.
Article
Chemistry, Multidisciplinary
Zheng Cheng et al.
Summary: Intelligent microwave absorption materials with dynamically adjustable microwave absorption performance have great significance in future civil and military applications. A new type of reduced graphene oxide/VO2 composite aerogels has been developed, which exhibits switchable microwave absorption performance based on the phase change behavior of VO2. The electrical conductivity and permittivity of the composite material change significantly with temperature, resulting in off/on switchable microwave absorption performance. The composite material can switch between two modes, on to off and off to on, as temperature increases, and it demonstrates good cycling stability. Moreover, the maximum changes in effective absorption bands and RL values during the switch process exceed most current reports.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Fei Chen et al.
Summary: In this study, single-atom iron anchored nitrogen-rich g-C3N4 nanotubes were designed and synthesized as catalysts for eliminating organic pollutants. Eco-friendly peracetic acid was used as the oxidant for Fenton-like reactions. The constructed heterogenous system achieved enhanced degradation of various organic contaminants over a wide pH range, exhibiting ultrahigh and stable catalytic activity. The study provides opportunities for significantly improving catalytic efficiency by developing novel catalysts with multiple active units.
ADVANCED MATERIALS
(2022)
Article
Energy & Fuels
Gizem Yanalak et al.
Summary: New photocatalysts consisting of 2D/2D heterojunction of graphitic carbon nitride (gCN) and molybdenum disulfide (MoS2) semiconductors doped with nickel (Ni) or cobalt (Co) were fabricated for the photocatalytic hydrogen evolution reaction (HER) under visible light illumination. The prepared gCN/MoS2-Ni and gCN/MoS2-Co photocatalysts exhibited enhanced HER activities and stabilities compared to pristine gCN and binary gCN/MoS2 heterojunctions.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Yuan Li et al.
Summary: This study presents a new NIR light catalyst that enhances the sensitivity of bacteria to reactive oxygen species and heat, resulting in the effective killing of bacteria under mild conditions. The catalyst alters bacterial metabolic processes and disrupts protein structures, exhibiting synergistic antibacterial effects with clinical antibiotics. Additionally, the catalyst stimulates immune responses and reduces complications.
Article
Chemistry, Multidisciplinary
Lihong Wu et al.
Summary: A frequency-tuning strategy using pressure variations is developed to achieve dynamic frequency regulation of microwave absorbing materials. The fabricated carbon nanocoils/carbon foam (CNCs/CF) can be tuned from S-band to Ku-band through adjusting compression strain. The method opens up new possibilities for the applications of dynamically frequency-tunable MAMs.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Jun Li et al.
Summary: In this work, an atomic-layer Fe2O3-modified two-dimensional (2D) porphyrinic metal-organic framework (MOF) was prepared, which exhibited a unique interfacial electron-withdrawing effect via charge transfer pathways. The photocatalytic antibacterial efficacy of 2D MOF-Fe2O3 reached up to 99.9% after light irradiation for 20 min. The study provides insight into developing highly effective photocatalysts by optimizing charge transfer pathway using electron-withdrawing modulator.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Xue He et al.
Summary: This study developed a novel porous graphene-like heterostructure through carbonization of pomelo peel and prussian blue analogues. The magnetic particles derived from prussian blue and its analogue were uniformly distributed in the N-doped carbon nanosheets, resulting in enhanced magnetic loss and improved interfacial polarization. The optimized sample exhibited high reflection loss and broad effective bandwidth, attributed to the unique structure of magnetic particle-embedded carbon nanosheets which optimized impedance matching and enhanced electromagnetic wave attenuation. The environmentally friendly method presented in this study offers potential for low-cost and high-performance microwave absorbers from biowastes.
Article
Nanoscience & Nanotechnology
Yue Wu et al.
Summary: This study synthesized CuS@rGO aerogels and investigated their pore structure, absorption properties, radar cross section, and infrared emissivity by modulating the additive amounts and reduction methods. The results showed that the aerogels exhibited excellent absorption performance in the ultrabroad bandwidth, effectively reduced the radar cross section, and possessed thermal insulation and infrared stealth versatility.
NANO-MICRO LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Huiping Zhu et al.
Summary: In this study, a microwave-responsive MoO2/WO3 heterojunction was developed for the effective treatment of MRSA-infected osteomyelitis. The composite exhibited enhanced MW thermal effect and MW catalysis, resulting in the formation of radical oxygen species and an interfacial electrical field under MW irradiation. These characteristics of MoO2/WO3 hold promise for the treatment of deep-tissue infections.
Article
Chemistry, Multidisciplinary
Shubin Wei et al.
Summary: In this study, a rapid and noninvasive therapeutic strategy was developed using Prussian blue as a microwave-responsive material to effectively treat bacteria-induced osteomyelitis. The released Fe2+ and Fe3+ from PB could easily penetrate bacterial membrane by microwave, react with H2O2 and GSH inside bacteria, leading to the final death of the bacteria due to the synergistic action of microwave, microwave thermal effect and Fe2+/Fe3+ induced Fenton reaction/GSH consumption. This study provides novel insight for designing remote and noninvasive antibacterial systems for treating deep bacteria-infected diseases.
Article
Chemistry, Multidisciplinary
Jieni Fu et al.
Summary: MW-responsive engineered pseudo-macrophages (M-Fe3O4/Au NPs) are able to clear Staphylococcus aureus infections, induce M2 polarization of macrophages, and enhance osteogenic differentiation of MSCs under MW irradiation. Fe3O4/Au NPs generate reactive oxygen species and heat under MW irradiation, promoting the production of ROS and reducing inflammatory cytokines secretion in MSCs. The engineered pseudo-macrophages show promise for treating bacterial infections and promoting osteogenic differentiation in deep tissues under MW irradiation.
ADVANCED MATERIALS
(2021)
Review
Nanoscience & Nanotechnology
Honghong Zhao et al.
Summary: Magnetic carbon-based composites are ideal for electromagnetic absorption, but their properties are highly dependent on precursors. Therefore, it is necessary to develop methods to effectively regulate the electromagnetic properties of these composites.
NANO-MICRO LETTERS
(2021)
Article
Multidisciplinary Sciences
Hamza K. Khattak et al.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2019)
Article
Chemistry, Multidisciplinary
Zhengchen Wu et al.
ADVANCED FUNCTIONAL MATERIALS
(2019)
Article
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Yuan Li et al.
ADVANCED FUNCTIONAL MATERIALS
(2019)
Article
Materials Science, Ceramics
Jieyi Yu et al.
CERAMICS INTERNATIONAL
(2018)
Article
Chemistry, Multidisciplinary
Changhui Fu et al.
Review
Chemistry, Multidisciplinary
Yong Wang et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2012)
