CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Tianle Liu,Shitian Zhao,Guokun Yang,Mingsheng Chen,Junhui Kou,Weijian Wang,Guosheng Jiang,Shaojun Zheng
Prominent thermal management, electromagnetic interference(EMI) shielding, and anti-ionizing radiation capabilities are essential trends in developing flexible materials. In this study, we developed a novel flexible MXene/polyvinyl alcohol/ microencapsulated phase change material (MPM) phase change composite film with a sandwich structure using an alternating vacuum filtration method. This film demonstrates good toughness, strength, stability, and durability. Incorporating microencapsulated phase change material(MEPCMs) enhances the enthalpy of the films (110.2J/g). Additionally, due to the incorporation of phase change microcapsules with a unique barium sulfate-based (BaSO 4 ) as the wall material, the films not only possess EMI shielding performance(39.7 dB), but also exhibits resistance to ionizing radiation(4.62 cm 2 g −1 ). Notably, the film can convert light and electrical energy into heat and store this heat as latent heat within the MEPCMs, enabling multi-source thermal management capability. The ease of preparation and exceptional performance of MPM make it highly suitable for a wide range of industrial and wearable applications.
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ACS Applied Energy Materials
·
2024
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IF 5.4
Shengxue Yan,Rui Huang,Hansai Liu,Shaohua Luo
Supercapacitors (SCs) are promising energy supply systems for various electronics. In this work, we detailed the in situ growth of FeCo2S4 on MXene for asymmetric SCs. Notably, the digital model was first built to explore the relationship between wt (FeCo2S4) and capacitance performance, realizing the maximum theoretical capacity (3635.7 F g–1) prediction. Furthermore, it was discovered that the synergistic effect of the FeCo2S4/MXene heterojunction could dramatically improve conductivity and structural stability, which accelerated charge transmission at the electrode/electrolyte interface, resulting in a significant enhancement in electrochemical performance. The FeCo2S4/MXene electrode exhibited a higher capacitance of 2415.3 F g–1 and a prominent long-term stability of about 90.5%. And the FeCo2S4/MXene//AC declared an impressive energy density of 68.7 Wh kg–1 at a power density of 800 W kg–1. The FeCo2S4/MXene composite systems have great potential for advanced SC systems due to their facile assembly and remarkable electrochemical performance.
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ACS Applied Nano Materials
·
2024
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IF 5.3
Yuzheng Li,Chengxiao Xu,Daming Li,Yingjie Zhang,Guoxu Ni,Songshi Xu,Bo Liu,Peipei Huo
Layered bimetallic hydroxide (LDH) has garnered significant attention due to its outstanding redox activity, making it a highly promising candidate as an anode material for sodium-ion batteries. In this study, a CoSn-LDH@MXene nanocomposite was skillfully fabricated through a one-step hydrothermal and ultrasonic treatment, involving the integration of CoSn-LDH microspheres onto Ti3C2 MXene nanosheets. CoSn-LDH was incorporated into the MXene interlayers via electrostatic adsorption, ensuring uniform dispersion, thereby preventing further MXene stacking and simultaneously increasing the interlayer distance. The exceptional electrical conductivity of MXene, combined with the abundant active sites provided by CoSn-LDH, synergistically enhances ion and electron transfer, resulting in the remarkable electrochemical performance of CoSn-LDH@MXene nanocomposites in sodium storage. An initial specific capacity of 976.1 mAh g–1 was achieved at 0.1 A g–1, with a remarkable capacity retention of 97.29% observed even after 100 cycles at 0.5 A g–1. The superior electrochemical performance of the CoSn-LDH@MXene nanocomposites can be attributed to the synergistic interplay between the robust redox-active LDH structure and the highly conductive MXene network. These findings suggest that CoSn-LDH@MXene nanocomposites hold significant promise for the advancement of sodium storage materials.
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Materials Today Chemistry
·
2024
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IF 6.7
Jinyu Wang,Qianqian Qiao,Yuqi Feng,Yuhao Guo,Tao Liao,Linwei Li,Ying Kuang,Bingbing Jiang,Ziqiang Xu,Cao Li
In cancer treatment, although prodrugs have been developed to overcome obstacles such as undesirable pharmacokinetic performance and serious off-target toxicity of most chemotherapeutics, the combination of prodrugs with nanotechnology could be used to overcome the shortcomings of conventional prodrug strategies and facilitate more efficient drug delivery and accumulation of anticancer prodrugs at specific sites/tissues. Phototherapy is a method that uses near-infrared (NIR) light to achieve local and non-invasive tumor therapy. The combination of chemotherapy and phototherapy has shown many therapeutic advantages, including synergistic therapeutic effects and the reduction of toxic and side effects of drugs through dose reduction. In this work, a hydrazone linkage was reported to conjugate Ti 3 C 2 T x MXene nanosheets with doxorubicin hydrochloride (DOX) and methoxy poly(ethylene glycol) benzaldehyde (mPEG-CHO) through a chemical surface modification to form a two-dimensional (2D) nano-prodrug Ti 3 C 2 T x -DOX/PEG (TDP) for synergistic chemo-photothermal therapy. First, hydrazide functionalized Ti 3 C 2 T x was obtained. Then, the carbonyl group of DOX and the aldehyde group of mPEG-CHO can form a pH-responsive hydrazone bond with hydrazide-functionalized Ti 3 C 2 T x . The high surface area of Ti 3 C 2 T x could overcome the reduced drug loading caused by conjugation. Aqueous stability and biocompatibility were enhanced by the introduction of PEG, making the material capable of prolonged circulation in the body's bloodstream. By achieving excellent antitumor results with this nano-prodrug, we have added another brick to the edifice of Ti 3 C 2 T x MXene as an anticancer drug carrier, and given new vitality to the study of anticancer prodrugs combined with nanotechnology.
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Surfaces and Interfaces
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2025
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IF 6.3
Junxia Chen,Yuying Yang,Weigang Li,Zhenzhen Yang,Yizhou Wu,Yubai Chen,Qing Zhou
The synthesized FeVO 4 /MXene composite photocatalysts demonstrated exceptional photocatalytic activity in activating PMS, removing 100% of 2,4,6-trichlorophenol (2,4,6-TCP) within 20 minutes. The incorporation of MXene effectively reduced photogenerated electron-hole pairs recombination in FeVO₄, enhancing charge transfer efficiency. Mechanistic studies revealed that synthesized FeVO 4 /MXene generated more •OH and ¹O₂ through the reaction between h⁺ and PMS. Furthermore, the photogenerated electrons (e⁻) facilitated Fe redox cycling within the system. The FeVO 4 /MXene/PMS/Vis system not only achieved efficient separation of photogenerated charge carriers but also reduced the required PMS dosage by 75%. Remarkably, the FeVO₄/MXene composite maintained its structural integrity after five consecutive cycles while retaining 98% of its initial degradation efficiency for 2,4,6-TCP, demonstrating excellent durability and promising application potential.
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SENSORS AND ACTUATORS B-CHEMICAL
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2024
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IF 8
Zhaorui Zhang,Haiying Du,Huashuai Hu,Dongchen Tan,Jinkui Chu,Minghui Yang
Two-dimensional transition metal carbon nitrides (MXenes) are a prominent class of functional materials with significant potential for sensing applications. However, their conventional charge transfer mechanisms pose limitations for detecting nitrogen dioxide (NO 2 ). In this study, we successfully design-synthesized potassium titanate (KTO) nanoribbons by oxidizing and alkalizing monolayer Ti 3 C 2 T x MXene, targeting room-temperature NO 2 detection. The Ti 3 C 2 T x -derived KTO exhibited exceptional selectivity for NO 2 , achieving a remarkable response of 649.2 % for 50 ppm NO 2 , which is 550 times higher than that of the Ti 3 C 2 T x sensor (1.18 %). Additionally, the sensor demonstrated a detection limit as low as 5 ppb at room temperature, along with rapid response (1 s) and recovery times (2 s), and excellent linearity. Computational analysis showed that the abundant OH groups on the KTO surface contribute to strong selective adsorption (2.79 |eV|) and efficient electron transfer (0.91 |e|) for NO 2 . The unique proton conduction mechanism of KTO further reduced the activation energy for proton transport, enhancing NO 2 sensing performance. This study highlights the potential of Ti 3 C 2 T x -derived KTO nanomaterials for advanced room-temperature NO 2 detection and sensor technology development.
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Nature Communications
·
2024
·Vol. 15
·期 1
·1-11
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IF 14.7
Liu Xianhu,Zhang Wenrui,Zhang Xin,Zhou Zhengui,Wang Chunfeng,Pan Yamin,Hu Bin,Liu Chuntai,Pan Caofeng,Shen Changyu
The rational use and conversion of energy are the primary means for achieving the goal of carbon neutrality. MXenes can be used for photothermal conversion, but their opaque appearance limits wider applications. Herein, we successfully develop visible-light transparent and UV-absorbing polymer composite film by solution blending the MXene with polyethylene and then vacuum pressing. The resulting film could be quickly heated to 65 °C under 400 mW cm −2 light irradiation and maintained over 85% visible-light transmittance as well as low haze (<12%). The findings of the indoor heat insulation test demonstrate that the temperature of the glass house model covered by this film was 6-7 °C lower than that of the uncovered model, revealing the potential of transparent film in energy-saving applications. In order to mimic the energy-saving condition of the building in various climates, a typical building model with this film as the outer layer of the window was created using the EnergyPlus building energy consumption software. According to predictions, they could reduce yearly refrigeration energy used by 31-61 MJ m −2 , and 3%-12% of the total energy used for refrigeration in such structures. This work imply that the film has wide potential for use as transparent devices in energy-related applications.
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PubMed
高影响因子
Journal of Semiconductors
·
2024
·Vol. 45
·期 5
·052601
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IF 4.8
Chuqiao Hu,Ruiqing Chai,Zhongming Wei,La Li,Guozhen Shen
Two-dimension (2D) van der Waals heterojunction holds essential promise in achieving high-performance flexible near-infrared (NIR) photodetector. Here, we report the successful fabrication of ZnSb/Ti3C2Tx MXene based flexible NIR photodetector array via a facile photolithography technology. The single ZnSb/Ti3C2Tx photodetector exhibited a high light-to-dark current ratio of 4.98, fast response/recovery time (2.5/1.3 s) and excellent stability due to the tight connection between 2D ZnSb nanoplates and 2D Ti3C2Tx MXene nanoflakes, and the formed 2D van der Waals heterojunction. Thin polyethylene terephthalate (PET) substrate enables the ZnSb/Ti3C2Tx photodetector withstand bending such that stable photoelectrical properties with non-obvious change were maintained over 5000 bending cycles. Moreover, the ZnSb/Ti3C2Tx photodetectors were integrated into a 26 × 5 device array, realizing a NIR image sensing application.
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CARBON
·
2024
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IF 10.5
Jinyi Wu,Dan Liu,Yuxuan Sun,Bokun Wei,Kun Dai,Yiqing Sun,Fei Zhang,Chuanbing Li,Jie Xue,Zifu Zhu,Xiaobo Gao,Qingbin Zheng
Solar steam generation (SSG) has been considered as a promising method to produce fresh water from seawater. Due to high light absorption and excellent chemical stability, carbon nanotube (CNT) has been widely used for SSG. However, it is still challenge to simultaneously realize high water evaporation rate and energy efficiency for CNT based solar steam generator. Herein, ultralight anisotropic Ti 3 C 2 T x MXene/carbon nanotube (A-Ti 3 C 2 T x /CNT) aerogels are designed and fabricated for highly efficient SSG. The combination of CNT and Ti 3 C 2 T x MXene endows the hybrid aerogel with high light absorption and effective localized surface plasmon resonance (LSPR), resuting in enhanced light-to-heat conversion efficiency. The porous structure of aerogel leads to multiple scattering and absorption, further contributing to the photothermal conversion process. Moreover, the low thermal conductivity of aerogel structure effectively reduces the heat loss to environment. Through tailoring the anisotropic channel, the A-Ti 3 C 2 T x /CNT hybrid aerogel with average channel size of 80 μm possesses most efficient water transport due to the capillary effect and formation of intermediate water. Therefore, the A-Ti 3 C 2 T x /CNT hybrid aerogel exhibits high average light absorption of 95.68% in the wavelength range of 200–2500 nm, excellent water evaporation rate of 2.10 kg m −2 h −1 under 1 sun irradiation (1 kW m −2 ) with a high energy efficiency of 93.4%, and remarkable durability with 7 days continuous water evaporation. The A-Ti 3 C 2 T x /CNT hybrid aerogel also shows high resistance to salt crystallization due to its high salt transport flux of 1.90 kg m −2 h −1 . This work offers a prospective strategy for constructing highly efficient solar steam generator with stable performance for practical application in seawater desalination.
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CARBON
·
2025
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IF 11.6
Mingjun Zou,Yixin Zeng,Xinwei Wang,Shujuan Liu,Qian Ye,Feng Zhou
Conventional hydrogels typically exhibit poor mechanical properties, high water loss, and susceptibility to swelling and structural degradation. Nanocomposite hydrogels offer a promising solution, demonstrating considerable potential for marine antifouling applications. Herein, polyethyleneimine (PEI) was successfully grafted onto MXene surfaces via tannic acid-mediated self-assembly polymerization through Schiff-base or Michael addition reactions. The resulting MX-PEIS exhibited effective antibacterial and anti-algal properties. Nanocomposite hydrogels were then synthesized via heat-initiated free radical polymerization. The MX-PEIS/Gel hydrogel demonstrated outstanding antifouling performance, achieving an antimicrobial rate of 95 % and a 99 % enhancement in anti-algal activity compared to the blank hydrogel. This improvement was attributed to the synergistic effects of MX-PEIS nanosheets and the hydrogel's surface hydration, which inhibited biofilm formation by killing, suppressing, and preventing the adhesion of bacterial and microalgal cells. Furthermore, the incorporation of MX-PEIS nanosheets significantly enhanced mechanical properties, increasing tensile stress from 0.07 MPa to 0.16 MPa and tensile strain from 581.2 % to 1022.4 %. Additionally, the modified hydrogel exhibited improved water retention, anti-swelling, and lubrication properties, contributing to greater structural stability and an extended service life.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
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IF 4.9
Lanlan Gao,Hong Wang,Yunlei Zhou,Zhipeng Tian,Huanshun Yin,Jun Wang
MXene-based Ti 3 C 2 T X composite aerogels (βCD-MXene-SA) were prepared using thin layers of MXene and sodium alginate (SA) as matrix materials, β-cyclodextrin (β-CD) as surface modifier, and epichlorohydrin as cross-linker. The βCD-MXene-SA was characterized by scanning electron microscopy, X-ray diffraction and Fourier transform infrared (FTIR) spectroscopy, and the results demonstrated that the βCD-MXene-SA had a larger specific surface area and a more developed pore structure. In addition, the maximum adsorption capacity of this βCD-MXene-SA for dibutyl phthalate (DBP) under the optimal adsorption conditions was 25 mg/g. The adsorption kinetics showed that the adsorption process was in good agreement with both kinetic models. The adsorption isotherms were consistent with the Langmuir and Freundlich adsorption isotherm models, suggesting that the adsorption of DBP by βCD-MXene-SA was the result of the combined effect of physisorption and chemisorption. The adsorption process may include monolayer adsorption on homogeneous surfaces and multilayer adsorption on multilayer surfaces. Outside, the ecotoxicological effects of DBP on crops were explored. The results showed that the treated wastewater could promote the growth of green beans, indicating that the toxicity of wastewater was significantly reduced after adsorption treatment.
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CARBON
·
2025
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IF 11.6
Min Chao,Bei Zhang,Jiahua Yang,Chunjia Luo,Chaobo Liang,Luke Yan
The electromagnetic absorption properties of single optimized wave-absorbing materials limit their practical applications in complex environments such as aerospace and military protection. Therefore, it is of great significance to develop composite materials that combine high temperature resistance, flame retardancy and other properties with efficient wave-absorbing properties. In this study, MXene/CB/PI (MCP) aerogels were successfully prepared by using polyimide (PI) as the polymer matrix and carbon black (CB) and MXene as the conductive fillers. The porous structure of the aerogel enhances the multiple reflections and propagation path length of electromagnetic waves. The conductive network facilitates the conversion of electromagnetic waves into electric currents for efficient conductive loss and multiple heterogeneous interfaces enhance the interfacial polarization. Therefore, the prepared MCP aerogel has excellent microwave absorption properties, with a minimum reflection loss (RL min ) of −56.3 dB and an effective absorption bandwidth (EAB) that completely covers the X-band (4.2 GHz). In addition, MCP aerogel also exhibits: excellent thermal stability (Weight loss is only noticeable above 520 °C), good flame retardancy (LOI up to 43.7 %) and good hydrophobicity (water contact angle of about 110°). MCP aerogel materials combine multiple functions and are expected to play an important role in aerospace and other fields.
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