CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Jiadong Li,Caiyun Liang,Chuanwei Lin,Yuna Wang,Yongjiu Liang,Dewen Dong
MXene-based aerogel has shown great application potential in electromagnetic interference (EMI) shielding because of its low density and low reflection efficiency. However, the fabrication of MXene-based aerogels for EMI shielding with exceptional elasticity, compressibility, and durability remains a challenge because of the limited mechanical property and oxidation behavior of MXene. Here, MXene/carboxymethylcellulose sodium composite aerogels were prepared by using unidirectional freezing combined with binary organosilane cross-linking. The composite aerogel with a MXene content of 90 % displayed an exceptional EMI shielding efficiency (45.8 dB) at a super low density (19.75 mg/cm 3 ), and the density-normalized shielding efficiency achieved a high level of 11,595 dB·cm 2 /g. The modification of organosilanes endowed the cross-linking network formed in the composite aerogel with great elasticity and compressibility. The organosilanes also helped the aerogel build a superhydrophobic surface, leading to a contact angle of 151.5°. Given the excellent superhydrophobicity and mechanical properties, the aerogel could maintain its EMI shielding performance after being dipped in water or compressed for 100 times. Furthermore, the aerogel prepared in this study possessed thermal insulation performance and piezoresistive feature. This study provides a convenient strategy to fabricate multifunctional MXene-based aerogels with low density, elasticity, and durability, which shows great application potential in the fields of EMI protection, thermal management, wearable devices, and smart sensors.
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ACS Applied Polymer Materials
·
2024
·
IF 4.4
Yadi Zhang,Haikuan Yuan,Xinyi Chen,Zhenlin Jiang,Jie Lu,Fan Xin
MXene has a multilayer structure, which can be peeled and layered into single or multilayer nanosheets, and it possesses multiple functional groups that can be easily modified. MOF-303, a kind of metal–organic framework material, was synthesized by the solvent hydrothermal method using aluminum ion as the center metal and 3,5-pyrazole dicarboxylic acid as the organic ligand. In this paper, MOF-303 was grown in situ on Ti3C2Tx MXene to synthesize the MXene@MOF-303 composite, which combined the advantages of both MXene and MOF-303. Using the MXene@MOF-303 composite as blending fillers and a polyacrylonitrile (PAN) ultrafiltration (UF) membrane as the substrate, an MXene@MOF-303/poly(vinyl alcohol) (PVA)/PAN composite membrane was fabricated. The composites and membranes were characterized by FTIR, XRD, SEM, and the pervaporation desalination of the composite membrane was also tested. The experimental results showed that the incorporation of MXene@MOF-303 composites improved the separation performance of the PVA membrane. The MXene@MOF-303/PVA/PAN composite membrane, loaded with 0.5 wt % of MXene@MOF-303, achieved a high flux of 15.87 kg·m–2·h–1 and a rejection of 99.84% when desalinating 3.5 wt % NaCl solution at 35 °C by pervaporation.
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Small
·
2024
·
IF 13
Shilin Chen,Dafeng Zheng,Qiulan Cen,Chang Geun Yoo,Lei Zhong,Dongjie Yang,Xueqing Qiu
Solar-driven interfacial evaporation is recognized as a sustainable and effective strategy for desalination to mitigate the freshwater scarcity issue. Nevertheless, the challenges of oil contamination, salt accumulation, and poor long-term stability of the solar desalination process limit its applications. Herein, a 3D biomass-based multifunctional solar aerogel evaporator is developed for water production with fabricated chitosan/lignin (CSL) aerogel as the skeleton, encapsulated with carbonized lignin (CL) particles and Ti 3 C 2 Ti X (MXene) nanosheets as light-absorbing materials. Benefitting from its super-hydrophilic wettability, interconnected macropore structure, and high broadband light absorption (ca. 95.50%), the prepared CSL-C@MXene-20 mg evaporator exhibited a high and stable water evaporation flux of 2.351 kg m −2 h −1 with an energy conversion efficiency of 88.22% under 1 Sun (1 kW m −2 ) illumination. The CSL-C@MXene-20 mg evaporator performed excellent salt tolerance and long-term solar vapor generation in a 3.5 wt.% NaCl solution. Also, its super-hydrophilicity and oleophobicity resulted in superior salt resistance and anti-fouling performance in high salinity brine (20 wt.% NaCl) and oily wastewater. This work offers new insight into the manufacture of porous and eco-friendly biomass-based photothermal aerogels for advanced solar-powered seawater desalination and wastewater purification.
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高影响因子
Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 16
·5737-5747
·
IF 5.7
Naying Shan,Zihao Guan,Zhiyuan Wei,Lulu Fu,Yang Zhao,Fang Liu,Lu Chen,Yanyan Xue,Zhipeng Huang,Mark G. Humphrey,Jun Xu,Chi Zhang
A stepwise approach was implemented in this research to synthesize the covalent linkage between graphene oxide (GO) and MXene for the first time. The preparatory procedure involves the exchange of surface functional groups on MXene, followed by the covalent modification of N-terminalized MXene with GO, making a pioneering advancement in the domain of nonlinear optics. The resulting nanohybrids, labeled as f-MXene-GO, underwent fully comprehensive characterization by crystallographic, spectroscopic, and microscopic techniques. Z-scan measurements revealed that f-MXene-GO features an optimized nonlinear optical (NLO) response in both nanosecond (ns) regimes at 532 nm and femtosecond (fs) regimes at 800 nm across the visible and near-infrared spectra, surpassing its precursor and physically blended samples. The transmittance of f-MXene-GO gradually diminishes with increasing incident energy, displaying enhanced reverse saturable absorption (RSA) and optical limiting effects upon ns pulse excitation. Conversely, f-MXene-GO demonstrates promoted saturable absorption (SA) under fs laser illumination. The effective electron transfer process from MXene to the grafted GO, validated by theoretical calculations, stimulates superior NLO absorption. These findings not only elucidate the intricate relationship between the structure and the NLO response across wide spectral regions and time scales but also provide invaluable insights into the untapped potential of MXene-based materials for NLO applications.
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Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-22
·
IF 36.3
Shao Runze,Wang Guilong,Chai Jialong,Lin Jun,Zhao Guoqun,Zeng Zhihui,Wang Guizhen
The Janus-type multifunctional ultra-flexible polytetrafluoroethylene-carbon nanotube-Fe 3 O 4 /MXene (FCFe/M) membranes were fabricated via a shear-induced in situ fibrillation technique followed by vacuum-assisted filtration.
Thanks to the strategic distribution of the MXene conductive reflection layer and the silk-like FCFe electromagnetic wave’s absorption layer, the membranes achieve robust electromagnetic interference shielding and effective antireflection through the absorption-reflection-reabsorption mechanism.
The membranes exhibit exceptional thermal management performance, including efficient heat dissipation and electrothermal/photothermal conversion capabilities, further enhancing their promising potential for applications in flexible wearable technologies.
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ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Zhanying Yu,Xiyu Wang,Xinlong He,Runjing Li,Aimin Zhang,Jihai Zhang
Zinc is an ideal energy storage material because of its low toxicity, nonflammability, and good biocompatibility. However, the commercial application is seriously hindered due to problems such as dendrite growth, hydrogen evolution, and interface passivation caused by “dead zinc” in the process of cyclic deposition. Herein, a nanoscale deposition dispersion model is designed in order to achieve directional deposition and uniform distribution of zinc ions for the growth of interfacial dendrites. Liquid metal GaIn was combined with Mxene for this nanostructure, which provides a rapid ion transfer channel to achieve lower overpotentials, a more uniform electric field distribution, and stronger corrosion resistance in a core–shell structure to achieve interface reaction suppression. The material was coated on the surface of the zinc metal as an artificial protective layer. It has a better cycle life at 1 mA·cm–2 compared with the bare Zn metal anode, achieving a long cycle time of 1100 h and an ultralow voltage lag (28.1 mV). It maintains the stability for 1000 cycles at 1 mA·cm–2 after assembling the complete battery. This provides a way to improve the performance of zinc-ion secondary batteries and paves the way for the next generation of energy storage devices.
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CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xiaoning Yu,Haoqi Pan,Qing He,Jing Yang,Mingming Xiao,Jin Xu,Wei Wang,Xianjun Yu,Si Shi
The inhibitory immune microenvironment of pancreatic cancer prevents the infiltration and activation of antitumor immune cells. Therefore, breaking the barrier of pancreatic cancer immune microenvironment is the key to activate antitumor immunity, but there is still no effective method reported so far. Immunogenic cell death (ICD) of tumor cells is considered to be an effective method to activate antitumor immunity. Accordingly, we designed and synthesized a dual-gated nanodrug based on MXene, which can not only specifically target pancreatic cancer cells and induce ICD, but also effectively regulate the immune microenvironment. Tumor cells undergo ferroptosis, a typical kind of ICD, which allowed a large number of tumor-associated antigens (TAA) to be released from the cytoplasm into the microenvironment. Dendritic cells (DCs) were attracted and promoted maturation. Activated DCs processed and presented TAA to T cells, which was a necessary process for T cell activation and ultimately heated up the cold tumor immune microenvironment of pancreatic cancer. In general, our work is an interesting and important exploration, aiming to apply MXene nanoparticles with great potential to the treatment of pancreatic cancer, and provide new ideas and directions for the biomedical application of related materials.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Yangyang Dai,Tian Fang,Shumin Li,Yuanyuan Wang,Suyue Zhong,Wenjun Su,Jian Li
While mixed matrix membranes (MMMs) containing two-dimensional (2D) layered materials (such as, GO, g-C 3 N 4 and MXene , etc.) have revealed potential application prospects for gas separation applications, it still faces a serious challenge to enhance the performance of CO 2 separation. Owing to the structural defects of g-C 3 N 4 nanosheets produced during the exfoliation process, which has greatly reduced the gas selectivity. Herein, we describe the construction of g-C 3 N 4 -MXene/Pebax MMM composed by MXene modified the structural defects in g-C 3 N 4 nanosheets to surmount the low gas selectivity of g-C 3 N 4 membrane. However, the stacking of nanosheets on each other hinder the gas transport channels. The TiO 2 nanoparticles derived in-situ from MXene semi-oxidation can support an intermediate layer between g-C 3 N 4 nanosheet and MXene nanosheet to expand the gas transport channels. Eventually, a novel g-C 3 N 4 -TiO 2 @MXene/Pebax MMM was obtained that exhibited maximum CO 2 permeability of 1673.69 Barrer in separation of CO 2 /CH 4 , CO 2 /N 2 selectivity of 45.13, and CO 2 /CH 4 selectivity of 47.76, exceeding the bond 2008 limit on Robeson. What's more, the MMM within 100 h (1 bar and 298 K) are measured to have outstanding separation performance. Overall, this concept offers a novel strategy to enhance CO 2 separation by MXene modified defects in g-C 3 N 4 nanosheets.
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ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Zhaochuan Yu,Chao Deng,Jianglei Sun,Xing Zhang,Yuqian Liu,Chao Liu,Farzad Seidi,Jingquan Han,Qiang Yong,Huining Xiao
Currently, multifunctional MXene-integrated wearable textiles (MWTs) are particularly appealing due to their various applications such as health monitoring, smart protection, and medical treatment. However, scalable manufacture of durable, stable, and high-performance multifunctional MWTs still face challenges due to the poor oxidation stability of MXene and low utilization of precursor titanium aluminum carbide (MAX). Herein, an improved preparation strategy for zinc ion (Zn 2+ ) intercalation is proposed to create high antioxidative MXene (ZM) and exceptionally conductive and printable gel ink based on MXene sediments (ZMS-ink), while multifunctional wearable textiles are fabricated using spray-coating and screen-printing techniques on cellulosic nonwoven textiles (CNWs), achieving the complete utilization of MXene precursor. Benefiting from the inherent disordered stacking and porous structure of CNWs, along with the highly conductive ZM and ZMS-ink, as-prepared smart, wearable and green-based pressure sensor offered proper breathability, high sensitivity (2602.26 kPa −1 ), wide sensing range (0–141 kPa), and excellent cycling stability (>5000 cycles). Additionally, the sensor exhibited efficient photothermal/photodynamic therapy antibacterial activity and exceptional electromagnetic interference shielding performance (57.5 dB). Therefore, this work paves the way for the future development of integrated and scalable multifunctional wearable devices building on the environmental-friendly CNWs incorporated with fully utilized MAX, offering a green and cost-effective approach.
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INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2025
·Vol. 26
·期 3
·1348
·
IF 4.9
Yansen Li,Jingyao Chen,Chaojie Yang,Wenhao Fan,Qirong Chen,Nan Yang,Pingye Deng,Wenlei Zhai,Zhiyong Yan,Feng Wang
A novel photoelectrochemical (PEC) biosensor was proposed by preparing Au NP/MXene–BiOCl Moiré superlattice nanosheets as the probes. Upon irradiation with visible light, the probe exhibited excellent electrical conductivity as well as high photoelectric conversion efficiency. Benefitting from the excellent PEC property of the hybrid probe, sensitive and accurate detection of protein kinase activity was demonstrated with a limit of detection of 0.0029 U mL−1. This study verifies the great PEC potential of MXene hybrid nanomaterials.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Yijiao Zhang,Yanming Wang,Haiying Huo,Pu Zhang,Xiaoliang Zhang,Hongwei Che,Jingbo Mu,Zhixiao Zhang,Ping Li,Chunxia Wu
A 2D/1D/0D ternary heterostructure was fabricated that combined the accumulative merits of each component to exhibit superior performance through synergistic effects. This study adopted a strategy based on integrating 2D MXene, 1D tubular MnO 2 , and 0D Ag nanospheres into one electrode to obtain a ternary heterogeneous layered structure composite electrode. Utilizing the collaborative and intensive outcomes from MXene, MnO 2 , and Ag, the resulting MXene/MnO 2 /Ag composite electrode achieved an exemplary specific capacitance of 880.8 F g −1 at 2 A g −1 . In this study, an asymmetric supercapacitor (ASC) was developed and fabricated using the MXene/MnO 2 /Ag composite for the anode, commercial activated carbon as the cathode. Consequently, in a two-electrode setup, the resulting devices displayed an admirable specific capacitance of 112.5 F g −1 at 3 A g −1 . After being cycled 5000 times, the device maintained 85.0 % of its original capacitance under charge-discharge conditions. Furthermore, the ASC device demonstrated a pronounced energy density of 39.9 Wh g −1 during cycling with a corresponding power density of 2955.8 W kg −1 . These results showed that the dimensionally combined MXene/MnO 2 /Ag nanoarchitectonic electrodes offered considerable application potential for enhancing energy storage in supercapacitors.
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CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Yijun Fu,Jiahao Liu,Junyi Zou,Sijun Xu,Yanhong Wei,Wei Zhang,Dawei Li
The power supply system is an important part of modern electronic equipment. Traditional batteries have disadvantages such as large volume and poor flexibility. Nanogenerators possess characteristics such as miniaturization, sustainable power supply, and independence from external energy sources. In this work, a piezo-triboelectric hybridized nanogenerator is developed. Barium titanate (BaTiO 3 ) and MXene (Ti 3 C 2 ) are incorporated into the electrospinning process of polyacrylonitrile (PAN), resulting in an electrospun PAN/BaTiO 3 /MXene nanofibrous membrane with significantly enhanced piezoelectric properties in comparison with the pure PAN fibrous membrane. Meanwhile, the electronegative properties of the PAN/BaTiO 3 /MXene nanofibrous membrane are augmented as the negative layer during contact and separation friction. The piezoelectric output voltage of the PAN/BaTiO 3 /MXene nanofibrous membrane reaches up to 6.4 V. When a nickel-copper conductive fabric is used as the positive layer, the piezo-triboelectric hybridized nanogenerator produces an output voltage of 11.3 V, an output current of 300nA, and a maximum output power density of 3.4 mW·m −2 over a contact-separation area of only 2 × 2 cm 2 . In addition, given that MXene itself exhibits excellent photothermal conversion ability, the PAN/BaTiO 3 /MXene nanofibrous membrane can be quickly heated up to about 54℃ under near-infrared irradiation at a power of 0.8 W·cm −2 , highlighting its potential in photothermal-therapy applications.
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