CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Wei Zheng,Zequn Yang,Jiefeng Chen,Mingguang Zhang,Hongxiao Zu,Ruiyang Qin,Wenqi Qu,Jianping Yang,Lijian Leng,Hailong Li
Utilization of monolithic mineral sulfide-based sorbent for the fix-bed elemental mercury (Hg 0 ) removal is regarded as a predominant predicament in the field of Hg 0 abatement. In this work, a general and facile route was exploited to establish CuS particles decorated 3D porous Ti 3 C 2 T x MXene aerogel via divalent Cu 2+ cations induced assembly combined with subsequent high-temperature sulfurization treatment, during which, uniform CuS particles were homogeneously anchored throughout the Ti 3 C 2 T x substrate. The obtained 3D CuS/Ti 3 C 2 T x MXene aerogel exhibited satisfactory textural property, hierarchical pore structure and strong interaction between Ti 3 C 2 T x MXene and CuS. Meanwhile, the inherent restacking of Ti 3 C 2 T x MXene nanosheet and serious agglomeration of CuS can also be effectively avoided in the formation of aerogel. Those structural advantages originating from this novel gelation process favorably contributes to satisfactory Hg 0 mass transfer and sufficient utilization of CuS active ligands, which largely strengthens Hg 0 removal performance and broadens the fix-bed application of mineral sulfides. Consequently, the Hg 0 capture capacity and adsorption rate of CuS/Ti 3 C 2 T x MXene aerogel reached 90596.4 g m −3 and 120.64 g m −3 min −1 , respectively, far outbalancing those of the reported in-situ selenized copper foam with excellent Hg 0 removal activity. The impressive Hg 0 sequestration performance is attributed to its relatively large specific surface area, layered pore channel, and highly dispersed CuS particles, largely boosting Hg 0 mass transfer and following sequestration. Moreover, other mineral sulfides/Ti 3 C 2 T x MXene aerogels can also be constructed by just replacing divalent metal cations, which makes the initial effort towards the fix-bed utilization of mineral sulfides-based aerogel for vapor-phase Hg 0 immobilization.
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DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Qing Feng,Mingyuan Dou,Zhenpeng Li,Jing Yang,Shuai Zou,Lixia Wei,Fuchuan Huang
The two-dimensional nano MXenes have unique microstructures and physicochemical properties, showing great potential in enhancing or replacing traditional metal processing lubricants. Here, a stable oil-in-water emulsion was constructed by coassembling Ti3C2TX MXene modified with phosphonic acid containing C10 alkyl chain and Tween 80 at the oil–water interface. The emulsion exhibits efficient friction-reducing and antiwear performance as well as corrosion resistance. The effect originates from the formation of a physical adsorption film and tribochemical reaction film stabilized by the interlocking of long carbon chains on the friction interface. This study provides a model of “material functionalization-interface synergy” for developing metal processing lubricants.
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DOI
PubMed
高影响因子
Small
·
2025
·
IF 12.1
Ilya Korolev,Anna Bondar,Arina Pavlova,Ksenia Maleeva,Valentina Minisheva,Grigory Ovinov,Ekateriva V. Skorb,Evgeny Smirnov
Portable electrochemical sensors are essential for real-time ion detection in environmental and clinical analysis, with ion-selective electrodes (ISEs) serving as a key platform due to their reliance on polymer membranes (ISMs) and conductive materials for selective recognition. This study compares traditional carbon fiber ISEs (CF-ISEs) with MXene-based alternatives. CF-ISEs use Ag/AgCl with polyelectrolyte transducers (PSS/PEI), while MXene-modified CF-ISEs (MXCF-ISEs) replace polyelectrolytes with MXene to enhance sensitivity. 1) MXene-only electrodes (no additional layers) are fabricated on glass and 2) screen-printed MXene ISEs (SPMXEs) are fabricated on flexible substrates (PVC) for Ca 2 ⁺-ions sensing. All designs are tested in complex media like milk, sparkling and seawater, demonstrating robust performance. MXene's high conductivity and compatibility with printing techniques enable cost-effective sensors without sacrificing accuracy, even without complex modifications. These results highlight MXene's potential to replace conventional materials in next-generation portable sensors, particularly for point-of-care diagnostics and environmental monitoring, where flexibility, sensitivity, and low-cost production are critical.
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DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Yongjin Tang,Jin Huang,Wei Xiao,Yang Li,Shuoqing Yan,Jun He
Layered MXene-based magnetoelectric composites have been extensively investigated and applied as microwave absorbing (MA) materials. Although multicomponent composite strategies have been proven to significantly improve the MA performance of materials, the fine structural design and optimization of the functional synergy of absorbers at intricate environments remain scientific issues worthy of further exploration. In this study, FeCo@C/Ti3C2Tx MXene composites were synthesized through a combination of chemical vapor deposition and electrostatic self-assembly techniques. The core–shell structure of ultrafine FeCo@C nanoparticles, with an average diameter of 13.51 nm, has effectively mitigated the adverse effects of harsh environmental conditions due to chemical stability of the carbon layer. Furthermore, the integration of ultrafine FeCo@C nanoparticles with a low filler loading contributed to the overall lightweight characteristic. Notably, the FeCo@C/Ti3C2Tx MXene composites with a 20 wt % filling ratio exhibit a minimum reflection loss (RLmin) of −31.6 dB at 1.7 mm and an effective absorption bandwidth of 5.76 GHz at 2.4 mm. The corresponding absorbing coating achieves a maximum reduction in the radar cross-section of 18.86 dBm2. The FeCo@C/Ti3C2Tx MXene composites exhibit the potential for applications in challenging environments, including high-temperature and humid conditions.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Xianhong Zheng
MXenes have attracted tremendous attention in the area of electrochemical energy-storage devices owing to their high electrical conductivity , pseudocapacitance and two-dimensional lamellar structure . Nevertheless, MXene flakes intrinsically tend to lie flat and restack, resulting in highly tortuous ion transport pathways and inferior ion accessibility. Herein, we develop a femtosecond laser ablation strategy to fabricate flexible and high-performance MXene ribbon supercapacitor electrodes. The fabricated MXene ribbons have porous edges with exposed continuous lamellar channels, which shortens the H + transport pathways, impregnates with sufficient electrolyte, benefits for H + intercalation and ion storage. The resultant MXene ribbons exhibit high specific capacitance (1308.3 mF/cm 2 ), good rate capability and long cycling life (95% capacitance retention and 92% coulombic efficiency after 30,000 cycles). This work provides a new strategy for the rational structure design of high-rate MXene-based supercapacitor electrodes and lays the foundation for the next generation high-performance energy storage devices.
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DOI
高影响因子
Small
·
2022
·Vol. 18
·期 26
·2200857
·
IF 15.153
Hao Cheng,Jiameng Wang,Yongqiang Yang,Huixian Shi,Jing Shi,Xiong Jiao,Peide Han,Xiaohong Yao,Weiyi Chen,Xiaochun Wei,Paul K Chu,Xiangyu Zhang
Light-assisted antibacterial therapy is a promising alternative to antibiotic therapy due to the high antibacterial efficacy without bacterial resistance. Recent research has mainly focused on the use of near-infrared light irradiation to kill bacteria by taking advantage of the synergistic effects rendered by hyperthermia and radical oxygen species. However, photocatalytic antibacterial therapy excited by visible light is more convenient and practical, especially for wounds. Herein, a visible light responsive organic-inorganic hybrid of ZnTCPP/Ti 3 C 2 T X is designed and fabricated to treat bacterial infection with antibacterial efficiency of 99.86% and 99.92% within 10 min against Staphylococcus aureus and Escherichia coli , respectively. The porphyrin-metal complex, ZnTCPP, is assembled on the surface of Ti 3 C 2 T X MXene to capture bacteria electrostatically and the Schottky junction formed between Ti 3 C 2 T X and ZnTCPP promotes visible light utilization, accelerates charge separation, and enhances the mobility of photogenerated charges, and finally increases the photocatalytic activity. As a result of the excellent bacteria capturing ability and photocatalytic antibacterial effects, ZnTCPP/Ti 3 C 2 T X exposed to visible light has excellent antibacterial properties in vitro and in vivo. Therefore, organic-inorganic materials that have been demonstrated to possess good biocompatibility and enhance wound healing have large potential in bio-photocatalysis, antibacterial therapy, as well as antibiotics-free treatment of wounds.
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DOI
高影响因子
VACUUM
·
2024
·
IF 3.8
Chunjiao Liu,Xiaodong Li
MXene can generate high-temperature pulses (HTP) by the physical/chemical coupling effect under laser irradiance and is a good initiator for laser ignition. The main obstacle in the application on laser ignition of MXene based materials is the incomplete oxidation and reduced energy output resulting from the inert TiO 2 passivation layer. In this study, we proposed an efficient approach to significantly enhance the thermal oxidation and energy release under laser irradiance by decorating hydrophobic 1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFTE). The CFx produced by the decomposition of PFTE under laser irradiance can react with Ti atoms on the surface of MXene to prevent the formation of the oxide layer. This process releases a large amount of heat and completely oxidizes MXene. As expected, some rutile nano-crystals are distributed on the surface of fully oxidized MXene and the energy output of MXene/PFTE composite is 6.1–8.3 kJ/g which is much higher than pristine MXene. The mechanism of the thermal oxidation process is proposed to explain the enhanced energy output of the MXene/PFTE by thermal analysis and time-resolved emission spectrum (TR OES). Furthermore, the MXene/PFTE membrane significantly enhanced the laser ignitibility of 2,4,6,8,10,12-(hexanitrohexaaza)cyclododecane (CL-20) reducing the laser intensity and shortens the ignition time.
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DOI
高影响因子
ADVANCED ENGINEERING MATERIALS
·
2025
·
IF 3.3
Yuhao Luo,Qian Zhu,Lei Cao,Lanlan Fan,Feng Gu,Shixian Xiong
Flexible micro-supercapacitors (FSCs), with their outstanding flexibility and low weight, offer great potential for a wide range of applications in the field of flexible electronics. Herein, the few-layer Ti 3 C 2 T x MXene hybridized with commercial PEDOT:PSS dispersion are used as ink for aerosol jet printing (AJP) to fabricate interdigitated and double-helix electrodes on 2D polyethylene terephthalate (PET) films and 1D thermoplastic polyurethane fibers, respectively. By controlling the evaporation behavior of aerosol microdroplets during the printing process, a transformation from 2D Ti 3 C 2 T x MXene nanosheets to 3D wrinkled spherical structures on the surface of the flexible substrate is achieved, which increases the accessibility of ions to the electrochemical active sites. In addition, the introduction of PEDOT:PSS as a “bridge” connecting the Ti 3 C 2 T x MXene-wrinkled spheres not only enhances the electronic conductivity within the electrode but also improves the bending stability of the electrode. Consequently, the optimized MXene/PEDOT:PSS-based planar and fiber-architectured FSCs exhibit excellent areal capacitance and flexible stability. This work highlights the significant potential of AJP technology in developing electronic devices with fascinating functionalities on various flexible substrates.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Jingyu Song,Wentao Xu,Jinlin Li,Yongqian Shen,Yingying Shen,Rong Wang,Xueyan Du
A significant challenge metal nanoparticles (NPs) used for electromagnetic wave (EMW) is the precise regulation of the interplay between dielectric and magnetic losses through multi-scale interface engineering, as well as achieving a wide broadband for absorbing materials. In this study, Ti 3 C 2 T x MXene/Ni composites were successfully synthesized in situ via a simple and mild solvothermal method. The influence of the size of Ni NPs on the EMW absorption performance was investigated. The results demonstrate that the size of Ni NPs could be regulated by varying the Ti 3 C 2 T x MXene content, resulting in a synergistic balance between dielectric and magnetic losses, significantly improving wideband impedance matching (3.00–12.80 GHz). The Ti 3 C 2 T x MXene/Ni composites achieved a minimum reflection loss (RL m ᵢ n ) of −50.70 dB at 3.76 GHz, with an effective absorption bandwidth (EAB) of 3.20 GHz. Characterization results reveal that size-dependent permeability dispersion and dielectric relaxation behavior synergistically optimize both impedance matching and loss mechanisms. This study provides a novel design strategy for enhancing the electromagnetic attenuation performance of MXene-based composites.
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高影响因子
ELECTROCHIMICA ACTA
·
2026
·
IF 5.6
Yu-hang Ma,Yi-feng Ding,Liu-hong Yang,Jing Wen,Ke-fan Duan,Ge Dai,Feng-Feng Mo,Jia-feng Wang
The simultaneous monitoring of lactate and potassium ions (K⁺) in blood is critical for the management of critical conditions like crush syndrome, yet it remains a significant challenge. Herein, we present a novel integrated microfluidic electrochemical sensor for the dual-mode detection of these biomarkers. The sensor leverages a synergistic composite of Ti 3 C 2 T x MXene and electrodeposited gold nanoparticles (AuNPs) to create a highly sensitive sensing interface. The microfluidic chip, fabricated with polymethylmethacrylate (PMMA), incorporates two independent detection chambers functionalized with lactate oxidase (LOx) and a valinomycin-based ion-selective membrane, respectively. This design enables specific and parallel detection from a single sample. The fabricated sensor demonstrated excellent performance. In a KCl solution, the sensor exhibited a linear range of 1 μM to 10 mM and a low LOD of 1 μM. In the 1 × PBS configuration of lactate solution, the sensor showed a linear range of 10 μM to 16 mM and an LOD of 10 μM. When applied to the analysis of rat plasma samples, the sensor showed strong correlation with a commercial hematology analyzer, confirming its accuracy and practical utility. This work provides a promising platform for point-of-care testing, offering a fast, convenient, and reliable method for simultaneous biomarker monitoring.
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DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Xu Jin,Shufan Feng,Yanxun Cheng,Baogang Zhao,Jingyun Ma,Jixun Xie,Jiaoxian Yu
Transition metal carbides (M x C y ) have recently emerged as promising candidates for sodium-ion battery (SIB) anodes, among which Mo 2 C stands out due to its metallic conductivity and favorable Na + migration characteristics. Nevertheless, substantial volume expansion and severe particle agglomeration during cycling impair structural integrity and cycling stability, thereby hindering its practical application. To tackle these intrinsic limitations, we synthesized morphology-modulated Mo 2 C/MXene composites by adjusting the mass ratio of Mo source to MXene precursors. One of these composites forms a 3D hierarchical porous framework, in which Mo 2 C nanocrystals are uniformly anchored on conductive Ti 3 C 2 T x MXene sheets, and is named Mo 2 C / MXene-S. MXene acts as an effective electron-transport network and mechanical buffer to alleviate volume fluctuation of Mo 2 C and suppress structural pulverization. Benefiting from the synergistic effect, the Mo 2 C/MXene-S anode exhibits reversible capacities of 406.5/143.6 mA h g −1 at 0.1/2 A g −1 and retains 296.1 mA h g −1 at 1 A g −1 after 1500 cycles. Kinetic analysis shows that Na + storage is dominated by surface-controlled pseudocapacitance. Density Functional Theory (DFT) calculations demonstrate that the composite optimizes Na + adsorption and reduces the diffusion energy barrier. The Na 3 V 2 (PO 4 ) 3 //Mo 2 C/MXene full cell displays stable cycling, offering an effective strategy for developing high-performance SIB anodes.
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高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·123534
·
IF 7.5
Fanshen Meng,Dongliang Zhang,Zihang Zhang,Yu Lin
Traditional oil absorption and oil-water separation methods have significant shortcomings such as low efficiency, high cost and environmentally unfriendly, developing efficient oil absorption and recyclable recovery materials has become more desirable for industrial applications. Herein, we fabricate the anisotropic polyimide (PI)/Ti 3 C 2 T x MXene composite aerogels with highly elastic mechanical performance and outstanding flame retardancy, thermal insulation and oil absorption properties via an unidirectional freeze drying method. The introduction of strong hydrogen bonding interactions between Ti 3 C 2 T x and PI matrix is beneficial to the structure integrity and mechanical properties of the composite aerogels. The samples show excellent mechanical properties along the axial direction and highly elastic properties along the radial direction. The compressive modulus and strength of the T 1 P 4 composite aerogel are 5.16 and 0.55 MPa, respectively, and only the minimal plastic deformation and low energy loss coefficient can be observed for the composite aerogel even after 500 compression cycles. Moreover, the PI/Ti 3 C 2 T x composite aerogels has low thermal conductivity, superior flame retardancy and thermal insulation, and excellent oil absorption properties. The surface temperature is 40.6 °C for the T 2 P 1 composite aerogel with 15 mm thickness after annealing on the hot stage at 180 °C for 5 min. The water contact angle of the T 1 P 4 composite aerogel is 123°, and the oil absorption capacity of lubricant oil is 1126%. Furthermore, the composite aerogel exhibits stable oil absorption capacity even after 50 cycles, which demonstrates great potential for practical applications in cyclic oil absorption.
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高影响因子
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