ADVANCED ENGINEERING MATERIALS
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2024
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IF 3.4
Yufei Huang,Jia Zhao,Guojing Chen,Xuhui Han,Chunpeng Chai,Huiling Ma
Thin-thickness and lightweight electromagnetic wave (EMW) absorption materials are critically needed for stealth technology in the military stealth field. The special structure of a material is important for improving its good EMW absorption. Herein, a series of porous metal–organic framework-derived LaCo/C-decorated Ti 3 C 2 T x (LaCo/C/Ti 3 C 2 T x ) composites are prepared by carbonization at high temperatures. Impressively, the minimum reflection loss of LaCo/C/Ti 3 C 2 T x –2 is −47.72 dB at 10.26 GHz (thickness 2.3 mm), and the optimal effective absorption bandwidth is 5.45 GHz (thickness 1.9 mm). The excellent EMW absorption properties are due to multiple electromagnetic loss mechanisms, such as polarization loss, magnetic loss, and multiple reflections and scattering. This work provides a new route for the application of Ti 3 C 2 T x -based derivatives.
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高影响因子
Food Bioscience
·
2024
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IF 4.8
Ting Yao,Xianxiang Zeng,Yuying Zou,Tao Luo,Xueying Tao,Hengyi Xu
Novel food packaging materials with antimicrobial properties must be developed to ensure that fresh agricultural products are free from microbial contamination during the process from “farm” to “table”. Herein, we synthesized an antimicrobial composite packaging film by employing a green in situ synthesis method. The method involves the in situ reduction of zinc oxide nanoparticles (ZnONPs) on the substrate Ti 3 C 2 T x by Lactobacillus plantarum fermentation broth, which was then blended with polyvinyl alcohol and vanillin to obtain the polyvinyl alcohol/vanillin/Ti 3 C 2 T x /ZnONPs (PVA/VAN/T-Z) composite film. The incorporation of crosslinker VAN and antimicrobial material Ti 3 C 2 T x /ZnONPs did not affect the transparency and color of the film, but improved its mechanical strength, hydrophobicity, and antimicrobial ability of the film. Antimicrobial experiments demonstrated that the PVA/VAN/T-Z composite film exhibited significant antimicrobial activity against bacteria (Gram-negative E. coli and Gram-positive S. aureus ) and fungi isolated from peppers. Furthermore, pepper preservation experiments demonstrated that the PVA/VAN/T-Z composite film exhibited commendable antimicrobial and preservation performance compared to commercially available film. As a novel antimicrobial packaging material, the multifunctional PVA/VAN/T-Z composite film has a broad application prospect in food preservation.
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JOURNAL OF LUMINESCENCE
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2024
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IF 3.3
Hui Zhang,Zhenyang Wang,Zhixing Chen,Xingyue Zhang,Yuanming Zhou,Fei Mei
The two-dimensional transition metal carbide MXenes, often designated by Ti 3 C 2 T x , have garnered significant interest on account of their distinctive optoelectronic characteristics. In this paper, PEDOT:PSS/Ti 3 C 2 T x composite hole transport layer (HTLs) was prepared by adding the MXenes material Ti 3 C 2 T x into PEDOT:PSS, and quasi-two-dimensional perovskite light-emitting diodes (PeLEDs) were fabricated and investigated. While the addition concentration of Ti 3 C 2 T x was 0.25 mg/mL, the optimal device shows the maximum luminance of 6250 cd/m 2 , and the current efficiency of 6.17 cd/A, which is 133 % and 112 % higher than the reference device without Ti 3 C 2 T x , respectively. It is indicated that the additive incorporation of Ti 3 C 2 T x in PEDOT:PSS can improve the efficiency of hole injection and conductivity of hole transport layer, and passivate the defects of perovskite film, thus enhancing the optoelectronic performance of PeLEDs. The findings of this study indicate that the PEDOT:PSS/Ti 3 C 2 T x composite HTLs has considerable potential for application in PeLEDs.
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Small Structures
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2024
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IF 13.9
Ziying Ji,Yiran Wu,Lu Liu,Wei Zheng,Meng Wu,Yuexia Li,Zhengming Sun,Guobing Ying
The 2D Ti 3 C 2 T x MXene has a large specific surface area, abundant functional groups, and low work function, which has potential in the field of photocatalytic materials. However, the manufacturing of controllable films with high photocatalytic properties and desirable transmittance is a challenging task. Herein, low-cost, large-scale, and rapid preparation of Ti 3 C 2 T x /TiO 2 flexible composite films have been successfully prepared by inkjet printing technology, which can be applied in complex and special environments, as well as in photoelectrically controllable places for photocatalytic performance. With the increase of the anatase TiO 2 , the transmittance of Ti 3 C 2 T x /TiO 2 films increases from 55.37% to 73.27% at 780 nm, corresponding to the square resistance of 1.112–206.496 kΩ sq −1 and the figure of merit of 0.48–0.005. When the amount of anatase TiO 2 is 15%, the film has the best photocatalytic effect on methylene blue (MB) dye, reaching 68.94%. After five cycles of testing, the degradation efficiency of MB dye decreases by only 5.68%, showing that the film has good cycling stability. This work provides a new research direction for photoelectrically controllable photocatalytic degradation in complex and special environments.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Tao Tang,Le-Qing Fan,Xiao-Yun Fu,Long Chen,Shi-Hua Lin,Xin-Yuan Song,Li-Na Wang,Fu-Da Yu,Yun-Fang Huang,Lan-Fang Que,Ji-Huai Wu
The electrochemical performances of lithium-ion capacitors (LICs) are severely hindered by the mismatch in reaction kinetics between the anode and cathode. Herein, to enhance the anode conductivity and improve the Li + ion diffusion rate for better kinetic matching, Ti 3 C 2 T x (MXene) sheets, known for their high electrical conductivity and excellent mechanical properties, were selected as a support for ZnSe. Simultaneously, the carbonization of hexadecyl trimethyl ammonium bromide reactant generated a carbon coating on the ZnSe surface. The results indicate that Ti 3 C 2 T x and the in-situ generated carbon reduce the aggregation of ZnSe particles, leading to the formation of ZnSe/Ti 3 C 2 T x /C composite with a large specific surface area of 46.5 m 2 g –1 . The synergistic effect of Ti 3 C 2 T x and carbon enhances the Li + ion storage performance of the ZnSe anode, achieving a remarkable reversible discharge specific capacity of 1006.3 mAh g –1 after 450 cycles at 0.2 A g –1 , along with improved Li + ion transfer capability. Ethylene glycol-reduced graphene oxide (EG-RGO) was also prepared; it has a large average discharge specific capacity of 84.7 mAh g –1 at 0.1 A g –1 . An optimized ZnSe/Ti 3 C 2 T x /C//EG-RGO LIC achieves a prominent energy density of 119.4–34.5 Wh kg –1 at a power density of 156.8–15525.0 W kg −1 , along with an impressive cycling span, retaining 84.1 % of its capacity after 5000-cycle test at 0.5 A g –1 .
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Journal of Energy Storage
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2024
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IF 8.9
Xianjie Liu,Fankai Lin,Zijiao Guo,Mingyong Liu,Yuena Jiang,Jiaxin Qiao,Ruiyu Mi,Xin Min,Zhaohui Huang
Based on the thermal energy storage and solar-thermal conversion of solid-liquid phase change materials (PCMs), they feature exceptional potential for energy-saving thermal insulation and solar energy utilization in buildings. However, the inherent low thermal conductivity, susceptibility to leakage and poor solar absorption of PCMs seriously restrict their practical applications. In this work, composite PCMs were fabricated by encapsulating paraffin with diatomite porous ceramics (DC) featuring hierarchical pore structures prepared by foaming and freeze-drying. Excellent sunlight absorption and solar-thermal conversion were achieved by spraying a Ti 3 C 2 T x coating on the DC-paraffin surface. The as-prepared DC 3 -PA with 55.85 % loading on paraffin possessed a satisfactory thermal storage capacity of 112.1 J/g, maintained excellent stability, and improved the thermal conductivity by 107.25 %. The solar-thermal conversion and storage efficiency of DC 3 /T-PA is as high as 95.24 % under 200 mW/cm 2 light intensity attributed to the large broad-band solar absorption and strong localized surface plasmon resonance (LSPR) effect of the Ti 3 C 2 T x coating. This strategy combining hierarchical porous structured ceramic encapsulation and Ti 3 C 2 T x coating surface modification was employed for obtaining high-performance shape-stable composite PCMs, which was expected to achieve potential applications in building energy efficiency, solar energy utilization, and thermal management.
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高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
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2024
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IF 8.1
Daqiang Zhao,Xu Zhou,Tianhao Cui,Gui-Gen Wang
The deposition of Ti 3 C 2 T x nanosheets onto an ultralight melamine sponge (MS) holds great appeal for constructing mechanically robust and high-performance electromagnetic interference (EMI) shielding composites. However, the full potential of Ti 3 C 2 T x materials for shielding performance is impeded by the insufficient affinity between Ti 3 C 2 T x nanosheets and MS. Herein, with the assistance of cellulose nanofibers (CNF), large-sized single-layer Ti 3 C 2 T x nanosheets were firmly attached to the MS skeleton and enveloped the pores. The obtained Ti 3 C 2 T x /MS composite sponges exhibit a unique multi-cavity structure. Moreover, hydrophobic modification was applied to the composites through the use of two-component silane coupling agents. The silane-modified multi-cavity structured composite sponges demonstrate significant enhancements in conductivity, mechanical strength , and environmental stability. Particularly, the incorporation of 17 wt% CNF leads to a 29.3 dB increases in shielding efficiency (SE) for the composite sponge. The enhancement can be attributed to the high reflectance of electromagnetic waves due to the highly conductive Ti 3 C 2 T x /CNF cavity-membranes, the multiple internal reflections within the multi-cavity structure, and the improved interfacial polarization loss capability facilitated by the abundance of MXene-CNF interfaces.
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ACS Applied Materials & Interfaces
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2024
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IF 8.3
Yunyu Ning,Juncheng Lv,Yuqing Li,Shuoyang Ming,Siqi Li,Siqi Zhen,Guangchao Yin,Hongsheng Jia,Junkai Zhang,Ming Lu
For the first time, an innovative pressure quenching technique is used to create the integrated electrode of the black phosphorus (BP) @Ti3C2Tx composite material, doing away with the requirement for adhesive additives and simplifying time-consuming processes. Through the formation of Ti–O–P bonds with BP, Ti3C2Tx MXenes can function as conductive additives and affect the interlayer gap. Additionally, we have found that there is a critical synthetic pressure threshold (300 kN) at which the performance of BP@Ti3C2Tx-integrated electrodes can be improved: too high of a pressure prevents lithium-ion transport because of mesopore reduction; too low of a pressure prevents Ti–O–P chemical bond formation between the two components; and suboptimal pressure does not allow for density enhancement for better electron conduction. The integrated electrode produced at 300 kN shows a discharge capacity of about 724.9 mA h/g at 0.1 A/g current density after 100 cycles, which is much larger than that obtained at 50 kN (270.2 mA h/g). Furthermore, the capacity can remain steady at 560.74 mA h/g even after 500 lengthy cycles at the high current density of 0.5 A/g. Significantly lower resistance (1.10 × 102 Ω at 300 kN; 2.02 × 103 Ω at 50 kN) and faster reaction kinetics are responsible for this improvement. This study offers a new, straightforward, and broadly useful technique for creating integrated electrodes and BP-based composite materials.
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PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2024
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IF 5.1
Ao Zhang,Wei Wang,Ruopeng Cui,An Du,Jinsheng Jia,Yonggang Huang,Chunlei Wan,Ruina Ma
The preparation of multifunctional microwave absorbing materials with the characteristics of stronger absorption, wider bandwidth, lighter weight, higher strength and thinner thickness is an urgent research direction. Due to the difficulty of controllable distribution of absorbers, excellent microwave absorption performance is usually accompanied by large absorber amount and thickness, which can result in microwave absorption composite materials lack flexibility, mechanical properties, and adaptability to the environment. In this study, Ti 3 C 2 T x /Fe 3 O 4 /glass fiber paper composite was prepared by vacuum-assisted filtration. The controllable pore structure constructed by glass fiber enables uniform distribution of MXene/Fe 3 O 4 and effectively spreading of MXene monolayer film, enhancing conductivity loss and interface loss. By controlling the diameter of glass fiber, the pore size and the distribution of absorber can be regulated, thereby achieving a minimum reflection loss of up to −57.2 dB at an ultra-low filling ratio of 1.66 wt%. With the addition amount of 1.90 wt%, the effective absorption bandwidth can cover the whole X-band. The ultra-low specific reflection loss exceeds most of fabric materials and MXene-based absorbers. Meanwhile, the composite material exhibited excellent mechanical properties with a tensile strength of 3.054 kN/m and a burst resistance of 290 kPa. In addition, the adhesion between the filler and the glass fiber was increased by adding acrylic resin-based aqueous adhesive, and the surface grafting functional group (-F) made the composite material superhydrophobic. This work provides a new strategy to synthesize multifunctional absorbing material with low filling ratio and strong environmental practicality.
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Heliyon
·
2024
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IF 3.4
Song Lin,Lixin Wen,Hong Zhao,Donghua Huang,Zuwei Yang,Qinge Zou,Ling Jiang
Since the p53 protein is an important promising biomarker of lung tumor and colorectal tumor, it is very essential to design a highly effective mean to monitor the degree of p53 for the early clinical analysis/therapy of the related tumors. In this work, a sandwich-type electrochemical immunosensing (SES) platform is proposed for the first time to detect p53 via synthesizing Ti 3 C 2 T x MXene nanoribbons (Ti 3 C 2 T x Nb) and ferrocene/gold nanoparticles (Fc/Au) respectively as the sensing substrate and signal-amplifier. The superior electrical property and large surface area of Ti 3 C 2 T x Nb are beneficial to assemble the initial p53-antibodies (Ab 1 ), while the synthesized Fc/Au is devoted to assemble the secondary p53 antibodies (Ab 2 ) and gives a magnified signal. By adopting the Fc molecules as the probes, the experiments reveal the response current of Fc resulted from the SES structure increases along with the p53 increase from 1.0 to 200.0 pg mL −1 . A considerable low detection limit (1.0 pg mL −1 ) is achieved after optimizing several key conditions, it is thus confirmed the as-proposed SES mean exhibits significant application in the detection of p53 protein and other targets.
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PubMed
高影响因子
Applied Materials Today
·
2024
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IF 7.2
Qianqian Qiao,Jinyu Wang,Bingjiao Li,Yuhao Guo,Tao Liao,Ziqiang Xu,Ying Kuang,Cao Li
Photothermal therapy (PTT)-based combination therapy is an effective approach to cancer treatment. However, there is a possibility of tumor development due to the inflammation caused by PTT. In addition, hyperthermia can cause damage to normal tissues. This work reported a drug delivery/cascade enzyme system based on Ti 3 C 2 T x MXene nanosheets. Ultra-small, degradable mesoporous silica nanoparticles (DS-MSN) were prepared to load phloretin (Phl), which has anti-inflammatory, antioxidant, and anticancer properties. Subsequently, glucose oxidase (GOx) was adsorbed on the surface of DS-MSN. The nanoparticles were then modified on Ti 3 C 2 T x MXene nanosheets and finally treated with polyethylene glycol (PEG) to obtain the multifunctional system named Ti 3 C 2 T x -Phl@DS-MSN-GOx-PEG (TPDMGP). The high near-infrared photothermal conversion efficiency of Ti 3 C 2 T x made it suitable for PTT. GOx and Ti 3 C 2 T x formed a cascade enzyme system inside cancer cells: Ti 3 C 2 T x exhibited catalase (CAT)-like activity that decomposed intracellular hydrogen peroxide (H 2 O 2 ) into O 2 , which was provided to GOx for enhanced starvation therapy. GOx in the presence of O 2 produces H 2 O 2 , for the oxygen production of Ti 3 C 2 T x . Meanwhile, DS-MSN could be degraded in the reducing environment inside cancer cells as it contains disulfide bonds in its backbone, thus releasing Phl for chemotherapy. Such a combination therapy strategy could achieve a satisfactory therapeutic outcome by low-temperature PTT while evading normal tissue damage by high temperature. The anti-inflammatory effects of both Ti 3 C 2 T x and Phl enabled TPDMGP to eliminate the inflammation caused by PTT via the scavenging of reactive oxygen species (ROS). The multifunctional system is expected to generate new paradigms for cancer PTT.
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APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Dongao Liu,Lei Li,Quanxin Gong,Gui Du,Yuhua Xue,Guisheng Li,Shengjuan Li
Developing high-performance and cost-effective microwave-absorbing materials for large-scale production is crucial in addressing the current electromagnetic pollution problem. This has become a focus of scientific research. This study proposes a cost-effective freeze-thaw method to enable large-scale production of MXene-based flexible films. This method streamlines the preparation process and produces ultrathin flexible MXene/CNF composite films with a multidimensional layered structure. The multidimensional layered structure provides additional scattering and reflecting paths for electromagnetic waves, increasing the interaction time between electromagnetic waves and the material. Additionally, the redistributed interfacial charge enhances the dielectric loss and electromagnetic shielding performance for the shielding material, thereby improving microwave absorption efficiency. Owing to these advantages, the MXene/CNF composite films prepared using the freeze-thaw method exhibit excellent electromagnetic shielding and mechanical properties. The conductivity of the composite film can reach 165.9 S cm −1 with a shielding effectiveness of 54.7 dB, and a high efficiency of 99.74 %. According to the simulations using a finite element method (FEM), the arrangement and rotation angles of all CNF layers significantly affect the electromagnetic shielding effectiveness of the MXenen/CNF composite films.
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危险品化学品经营许可证（带存储）