JOURNAL OF MEMBRANE SCIENCE
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2022
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IF 10.53
Saidi Wang,Zhaoyi Wang,Yiyi Fan,Xiuxia Meng,Fukai Wang,Naitao Yang
The reverse electrodialysis (RED) is a potential technique to harvest osmotic energy caused by different salinities. Owing to the negative surface-charged controlling effects of nanofluidic channel in 2D membrane, the power density has been achieved with high energy conversion efficiency for cations (Na + with the counterpart of Cl − ). However, anion-selective nanofluidic channel is rare but still required for promising application of RED due to its high higher diffusion rate resulting in desirable osmotic power energy. In this work, we constructed a two-dimensional layered MXene membrane with positive charge via amination strategy of 3-aminopropyltriethoxysilane (APTES) toward anion selectivity for efficient osmotic power harvesting. The power density of the resultant membrane can achieve a maximum of 10.98 W m −2 at a natural salinity gradient, higher than the commercial benchmark of 5 W m −2 . Under regulating environmental conditions including operation temperatures, pH and the existence of pollutants (heavy metal ions and organic pollution) of the simulated electrolyte solution, a higher power density of 20.66 W m −2 can be reached through Cl − transmembrane transport. During 10-h testing, the attenuation of output power density was just 3%. The applicable stability still maintains under the contaminative environment of heavy metal ions or organic pollution. These results will bring an innovative design of anion-selective membrane for osmotic energy conversion and widen the practical application in ion selectivity.
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DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2020
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IF 7.1
Guanghui Yang,Jinlai Zhao,Shaozhen Yi,Xuejuan Wan,Jiaoning Tang
Conventional fluorescent probes are either easily photobleached or non-biodegradable, which often leads to the unstable fluorescence signal output and long-term biological toxicity. Therefore, the development of novel fluorescent materials with both excellent photostability and biodegradability is of great significance for further broadening their application in numerous research fields. In this work, Nb 2 C quantum dots (Nb 2 C QDs) with pristine crystallographic structures of Nb 2 C MXene phases and surface oxygen-containing species are synthesized by an ultrasound assisted physicochemical exfoliation in tetrapropylammonium hydroxide. Detailed analyses indicate that the Nb 2 C QDs not only possess excellent chemical- and photo-stable fluorescence emission but also achieve successful application in fluorescence sensing of heavy metal ions and fluorescence imaging. More importantly, it is confirmed that the Nb 2 C QDs present high biocompatibility and unique biodegradation property responsive to human myeloperoxidase, implying the application safety of Nb 2 C QDs in vivo . Under the background of ever-growing and stringent requirements for biosafety and technical stability, the chemical- and photo-stability, biocompatibility, biodegradability, and most importantly the promising fluorescence sensing/imaging characteristic of the obtained Nb 2 C QDs may argue well for their future applications in environmental monitoring, biomedical diagnosis, visual display, and anti-counterfeiting.
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高影响因子
APPLIED SURFACE SCIENCE
·
2021
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IF 6.707
Jingran Huang,Junnan Tao,Guiwu Liu,Lei Lu,Hua Tang,Guanjun Qiao
Constructing heterojunction photocatalyst with a suitable band energy structure and well-defined interfacial contact is considered to be an effective way for solar-to-hydrogen conversion. CdS with suitable band structure is expected to be an excellent candidate in photocatalytic water splitting to produce hydrogen, but fast recombination of photo-generated carries usually hinders its applications. Nb 2 CT X , with lower Fermi energy level than Ti 3 C 2 T X , has been used as co-catalyst for photocatalysis due to its excellent electroconductivity and hydrophilicity. In this work, a one-step solvothermal method is used to grow in-situ one-dimensional (1D) CdS nanorods on two-dimensional (2D) Nb 2 CT X under the action of electrostatically driven self-assembly, ensuring the intimate contact at the CdS/Nb 2 CT X interface to form the 1D/2D Schottky heterojunction. Correspondingly, the CdS/Nb 2 CT X composite helps to accelerate the separation of electron-hole and charge transfer of CdS, and thus improving its photocatalytic performance. The optimized CdS/Nb 2 CT X composite (CdS/Nb 2 CT X -60) presents enhanced photocatalytic activity with hydrogen production rate of 5.3 mmol·g −1 ·h −1 under visible light, which is 1.7 times higher than that of pristine CdS.
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高影响因子
Journal of Materials Research and Technology-JMR&T
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2021
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IF 5.039
Yanting Wang,Ting-Ting Li,Bing-Chiuan Shiu,Xuefei Zhang,Hao-Kai Peng,Ching-Wen Lou,Jia-Horng Lin
With the rapid development of wearable electronic products and smart devices, there is an urgent need to develop efficient electromagnetic interference (EMI)shielding materials to eliminate the resulting radiation pollution. Herein, hydrophobic and multi-responsive conductive composite film with core-shell structure and sandwich structure are constructed via simple in-situ polymerization and dip coating methods. The thin silicone coating can enhance the bonding fastness of the substrate and the conductive functional layer and endow the composite film excellent waterproof performance. The composite film with a thickness of 45 μm exhibits outstanding electrical conductivity of 62.15 S/cm and EMI shielding effectiveness (EMI SE) of 37.71 dB. Surprisingly, the composite film also exhibits good waterproof performance and excellent electro-optical thermal response, and has good stability in complex environments. This work proves the advantages of constructing multiple conductive interfaces inside the nanofiber film, and provides a new preparation strategy for efficient multifunctional shielding materials, which is expected to be widely used in the next generation of wearable electronic devices and wearable smart clothing.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2021
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IF 13.273
Hui Zong,Le Hu,Zhenguo Wang,Ruijuan Qi,Ke Yu,Ziqiang Zhu
It is significant to exploit novel electrode materials because at present the severe capacity decline and slow ion kinetics limit the broad application of lithium-based batteries. Herein, we have prepared the metal–organic frameworks-derived CoP anchored on Ti 3 C 2 MXene (MOFs-CoP@MXene) and fully explored its synergy as an efficient bifunctional electrode for enhanced lithium storage for the first time. It is gratifying that the prepared MOFs-CoP@MXene provides a high capacity of 706.5 mAh g −1 after 200 cycles at 0.2 A g −1 , as the anode for lithium-ion batteries (LIBs). It can provide 585.8 mAh g −1 after 1000 cycles with 0.5 A g −1 . The MOFs-CoP@MXene anode has robust lithium-ion storage capacity, indicating that it can increase the charge transfer rate and improve Li + diffusion kinetics with enhanced electrochemical activity. As lithium-sulfur batteries (LSBs) cathode, MOFs-CoP@MXene/S shows 796.9 mAh g −1 after 300 cycles at 0.2C. MOFs-derived CoP coupling with MXene exhibits enhanced capture capacity of sulfur, facilitating the conversion of polysulfides. The results show that the MOFs-CoP@MXene composite prepared for the first time are feasible as both the anode of LIBs and the cathode of LSBs.
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高影响因子
ACS Applied Materials & Interfaces
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2022
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IF 10.383
Yun Shao,Kaiyi Dong,Xinyu Lu,Bingbing Gao,Bingfang He
Biomedical dressings have been comprehensively explored for wound healing; however, the complicated manufacturing process and mono-function of the dressing remain critical challenges for further applications. Here, a versatile extrusion three-dimensional (3D) printing strategy to prepare MXene and spidroin-incorporated microneedle scaffolds with photothermal responsive and self-healing properties for promoting wound healing is proposed. Inspired by the cactus, the microneedle scaffold is composed of a top porous scaffold, and microneedles whose inverse opal (IO) photonic crystal (PC) structure and the ample space between the scaffold gaps endow the microneedle scaffold with high drug-carrying capacity. Furthermore, the excellent electrical and photothermal properties of MXene allow the microneedle scaffold to perform sensitive wound movement monitoring and controlled drug release under near-infrared irradiation. Moreover, the extensive hydrogen bonding and Schiff base between the spidroin, polyurethane (PU), and aloe vera gel (avGel) molecules conferred high self-healing and mechanical performance to the microneedle scaffold. In vivo experiments with rat models of wounds have shown that drug-laden microneedle scaffolds under near-infrared (NIR) light can promote the recovery of full-skin wounds. These unique characteristics suggest that 3D-printed multifunctional microneedle scaffolds show great potential for applications in facilitating wound healing and will find widespread applications in wound management.
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DOI
PubMed
高影响因子
ACS Applied Nano Materials
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2025
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IF 5.5
Qianfang Sun,Bingbing Lai,Xiaoyu Wang,Bo Dai,Xuejun Liu,Wenjing Lou
Hydrogels, owing to their outstanding hydrophilicity and remarkable ability to mitigate creep and leakage issues, serve as ideal lubricants. The introduction of nanomaterials such as MXene and graphene oxide (GO) can further enhance the mechanical strength and tribological properties of hydrogels. In this study, MXene/GO-PVA composite hydrogel lubricants were prepared by incorporating the two nanomaterials of MXene and GO into the PVA hydrogel by the chemical cross-linking method, and their tribological properties were systematically investigated. Furthermore, the lubrication mechanism of the MXene/GO-PVA hydrogel was investigated and deduced through multiple analytical techniques. Compared with the base hydrogel and single-component hydrogel, the MXene/GO-PVA hydrogel exhibits the best tribological performance: its coefficient of friction is reduced by 50.68%, and its wear volume is decreased by 63.99% relative to the PVA hydrogel. The inherent low interlayer shear strength and interlayer slip characteristics of MXene and GO, combined with their surface-abundant hydrophilic groups and the synergistic effects generated within the three-dimensional PVA hydrogel network, collectively contribute to the excellent lubrication performance. This study offers insights into the development of high-performance water-based lubricants.
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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
Yang Zhang,Kangxin Qi,Xiangxiang Pi,Qingqing Tang,Qingquan Xue,Wei Chen,Diwei Gu,Jian Xu,Shenao Zhang,Yusen Wang,Yunxia Liang,Bin Sun,Wangyang Lu
Developing miniaturization, adaptability and weavability wire-shaped supercapacitor (F-SC) with admirable electrochemical performance and exceptional mechanical properties, has been a pivotal issue for wearable system. Here, we fabricated flexible F-SCs assembled by heterogeneous polyaniline (PANI)/bacterial cellulose (BC)/Ti 3 C 2 T x (PBT) hybrid fiber. BC nanofibers , as both reinforcement and spacer, can link with the adjacent Ti 3 C 2 T x flakes together to enhance the mechanical properties and prevent the restacking of Ti 3 C 2 T x flakes to accelerate the ion diffusion. And the PANI nanoparticle plays a crucial role in providing more active sites to improve the electrochemical performance. Besides, the continuous Ti 3 C 2 T x sheet arrangement in hybrid fiber guarantees favorable conductivity and forms a smooth pathway for electron migration. Thus, the PBT fiber shows high mechanical property (123.42 MPa), mass capacitance of 337 F g −1 in 1 A g −1 , superior rate performance (129 F g −1 at 10 A g −1 ) and exceptional cycling stability (84.1 % capacitance retention after 10,000 cycling). Moreover, the solid-state symmetric F-SC displays capacitance of 259 F g −1 , 86 % capacitance retention after 10,000 cycles, maximum energy density of 7.28 Wh kg −1 and favorable mechanical endurance, which displays a promising future in smart wearable system.
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高影响因子
Fundamental Research
·
2025
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IF 6.3
Zhong Wang,Tuo Zang,Ye Ziyu,Siyuan Zhang,Guojian Li,Xiaoming Liu,Qiang Wang,Shuang Yuan
Precise anchoring and high-density utilization of platinum single atoms (Pt SA ) remain critical challenges in advancing efficient hydrogen production via water electrolysis. Here, we present an innovative magnetic-field-assisted electrodeposition strategy for the controllable synthesis of high-density Pt SA on two-dimensional MXene substrates. Application of a 0.6 T magnetic field significantly enhanced Pt SA deposition kinetics, yielding a 2.1-fold increase in the deposition rate. Numerical simulations confirmed that magnetohydrodynamic (MHD) effects induced by the magnetic field were the primary mechanism driving this enhanced deposition efficiency. The optimized Pt SA -0.6@MXene/NF catalyst exhibited outstanding hydrogen evolution reaction (HER) performance in 1 M KOH, achieving an ultralow overpotential of 12 mV at 10 mA cm −2 , along with a Tafel slope of 29 mV dec −1 . Notably, the catalyst demonstrated 66.1-fold higher Pt mass activity (3458.7 A g −1 ) compared to commercial Pt/C (52.3 A g −1 ) at a 50 mV overpotential. Density functional theory (DFT) calculations revealed that the high-density Pt SA configuration synergistically enhances MXene's electrical conductivity while lowering the d-band center, thereby optimizing the energy barrier for hydrogen intermediate (H*) adsorption. This work provides a novel strategy for regulating the magnetic-field-assisted deposition of Pt SA catalysts, offering a new avenue for designing high-performance water electrolysis catalysts.
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DOI
高影响因子
COMPOSITES PART B-ENGINEERING
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2025
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IF 14.2
Nuo Xu,Zhihong Ma,Jinzhi Ouyang,Mingkun Jia,Tianyu Zhao,Fengjuan Wang,Wenxiang Xu,Shaohua Chen
Balancing strength and toughness with synergistic enhancement remains a critical challenge in developing high-performance carbon fiber (CF) composites. Deep-sea nautilus exhibits a superior strength-toughness balance compared with shallow-water nacre, attributed to its exceptionally large platelet aspect ratio, densely distributed nano-asperities, and higher organic matrix content that jointly give rise to enhanced interfacial shear resistance through coupled adhesion-friction mechanisms. Inspired by this naturally optimized architecture, we develop a biomimetic “brick-and-mortar” interphase using MXene@TiO 2 assembled with polydopamine/polyethyleneimine (PDA/PEI) nanolayers. Unlike conventional “brick-and-mortar” interphases, the micro-convex TiO 2 nanoparticles on MXene surfaces provide mechanical interlocking and more homogenized stress transfer, while PDA/PEI layers ensures strong chemical adhesion, enabling the simultaneous enhancement of interfacial strength and toughness. The resulting CF-MXene@TiO 2 /epoxy composite exhibits a 66.9 % increase in interfacial shear strength (75.6 ± 3.3 MPa) and a 71.9 % rise in interfacial fracture toughness G ic = 91.3 ± 5.9 J/m 2 , compared to the desized CF. Flexural strength and interlaminar shear strength are also improved by 31.6 % and 46.9 %, respectively. Mechanistic analysis indicates that the synergistic interaction between the micro-convex “brick” (MXene@TiO 2 nanosheet) and the “mortar” (PDA/PEI nanolayer) optimizes the interfacial microstructure, effectively suppressing crack propagation and promoting superior interfacial strength and toughness. This work provides a rational biomimetic strategy to overcome the strength-toughness trade-off and offers potential applications in aerospace, marine, and other high-performance CF composite structures.
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高影响因子
Small
·
2025
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IF 12.1
Xiaojie Li,Mengxia Shen,Jiaojiao Sun,Chuanyin Xiong,Yujun Liu,Lin Hou,Feiguo Hua
Aerogel-based composites have demonstrated considerable potential for applications in the field of electromagnetic wave (EMW) absorption. Nevertheless, the development of such materials featuring precisely engineered microstructures, balanced magnetic/dielectric multicomponent systems, and integrated multifunctionality remains a major challenge. In this work, an MXene/lignocellulose-derived carbon framework/Fe composite carbon aerogel is successfully fabricated through a component-structure systematized strategy. By integrating ice-crystal-template-directed assembly with subsequent carbonization, a 3D porous interpenetrating network is formed by cellulose-derived carbon skeletons and MXene conductive nanosheets, which significantly enhances multiple EMW scattering and interfacial polarization. As a multifunctional molecular cross-linker, lignosulfonate (LS) not only reinforced hydrogen bonding and electrostatic interactions but also effectively anchors magnetic particles, thereby achieving a synergistic enhancement of dielectric and magnetic loss mechanisms. Following precise optimization of component ratios, the sample achieves a minimum reflection loss ( RL min ) of −51.2 dB and an effective absorption bandwidth (EAB) of 4.12 GHz at a thickness of only 1.4 mm. Moreover, the aerogel displays favorable hydrophobic-oleophilic properties and thermal insulation. This work thus provides a feasible strategy for the development of lightweight, high-performance, and multifunctional aerogel-based EMW absorbing materials.
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DOI
PubMed
高影响因子
Green Chemical Engineering
·
2025
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IF 7.6
Guangcai Zhao,Shuo Meng,Zhongyuan Zheng,Jian Guo,Lu Chen,Hongli Zheng,Peng Zhang,Jia Yu,Lujie Zuo,Hongbin Zhao,Ting He
Vanadium-based compounds are promising cathodes for aqueous zinc-ion batteries owing to their high capacity derived from multi-electron redox reactions. However, their practical application is often hampered by poor rate capability, caused by low electrical conductivity and sluggish Zn 2+ diffusion kinetics. Herein, we propose a precise amorphization strategy applied to conductive V 2 CT x MXene to overcome these limitations. Starting from exfoliated few-layer V 2 CT x , a controlled annealing process in argon induces a crystalline-to-amorphous transition, which effectively elevates the valence state of surface vanadium, creates abundant active sites for Zn 2+ storage, and expands the interlayer spacing to facilitate ion diffusion. Meanwhile, the intrinsic conductive V-C-V framework remains intact, ensuring rapid electron transport. As a result, the amorphous a-V 2 CT x cathode delivers remarkable electrochemical performance: a high reversible capacity of 543 mAh/g at 1 A/g, exceptional rate capability (494 mAh/g at 30 A/g), and outstanding cycling stability over 3000 cycles with a minimal decay rate of 0.012% per cycle. This work demonstrates the great potential of phase engineering MXenes for developing high-performance energy storage materials.
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高影响因子
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