Journal of the Taiwan Institute of Chemical Engineers
·
2026
·
IF 6.3
Zhenying Li,Yanze Yang,Xu Chen,Yulu Hu,Xia Sun,Jiliang Xie,Tao Yang
Background:As a typical refractory cationic dyes, Rhodamine B (RhB), poses a significant challenge in aquatic environment. Methods:To address this issue, this study fabricated a novel TBO-PSPH/MXene composite membrane by covalently grafting the silane-based N-halamine poly[5,5-dimethyl-3-(3’-triethoxysilylpropyl)hydantoin](PSPH) onto the surface of MXene, followed by the intercalation of the polycyclic dye Toluidine Blue O (TBO) into MXene interlayers. The composite membrane was characterized by XRD, XPS, FT-IR, N 2 adsorption /desorption, AFM and FESEM. Signifiicant Findings:The results demonstrated that the intercalation of TBO significantly enhanced structural stability of the membrane as well as the incorporation of PSPH reduced the surface negative charges and improved hydrophilicity of the membrane. Separation experiments with a 15 mg/L RhB solution at pH 1 and room temperature (RT) demonstrated a high rejection of 97.3% and a water flux of 4.63 L/(m²·h·bar). Notably, the incorporation of 10% NaCl significantly enhanced membrane performance, elevating RhB rejection to 98.9% while increasing water flux to 6.29 L/(m²·h·bar). The separation mechanism is attributed to synergistic effects of electrostatic repulsion, size-sieving, steric hindrance, and adsorption. This work provides a promising strategy for developing high-performance MXene membranes for treating challenging dye wastewater under various conditions.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Hecheng Yao,Shuyi Li,Chaohuan Yang,Chenchen Liao,Yuchan Li,Zhimin Guo,Guoyong Wang,Yan Liu
With the growing emphasis on personalized health management, point-of-care testing has garnered significant interest, creating a pressing demand for biosensors that are both highly sensitive and user-friendly. Herein, we develop a dual-function sensor on a Janus fabric for monitoring sweat glucose and lactate. The Janus material provides the critical function of unidirectional sweat transport for efficient collection while also being endowed with antibacterial properties and breathability to ensure user comfort during extended wear. The electrochemical electrode was fabricated via a sequential process of screen-printing, electropolymerization of Prussian blue, and modification with MXene and specific enzymes. The incorporation of MXene significantly reduces the electrical impedance of the electrode, thereby enhancing its electrochemical performance. The sensor offers broad detection ranges (0–500 μM for glucose and 0–25 mM for lactate) with low detection limits (0.6 μM and 0.145 mM, respectively). Furthermore, the detection sensors exhibit outstanding long-term stability, excellent reproducibility, and strong anti-interference capability. Moreover, the integrated sensor successfully monitored changes in glucose and lactate concentrations in human sweat, demonstrating significant potential for applications in health management and exercise monitoring.
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CERAMICS INTERNATIONAL
·
2023
·Vol. 50
·期 1
·2459-2466
·
IF 5.2
Xin Liu,Hanmei Zhang,Tao Shen,Jianbo Sun
SnO 2 nanoparticles@Ti 3 C 2 T x MXene have been successfully synthesized by a flexible solvothermal method. The Ti 3 C 2 T x MXene was evenly anchored by the SnO 2 nanoparticles (∼5 nm) through the controllable assembly heterojunction . Ti 3 C 2 T x MXene contributed to the improvement of material conductivity compared to SnO 2 nanoparticles. The combination of SnO 2 @Ti 3 C 2 T x exhibits excellent sensitivity and selectivity to NO 2 at room temperature (RT). Compared with pure Ti 3 C 2 T x MXene, the sensitivity of TCS1.5 nanocomposite increases more than 20 times to 300 ppm NO 2 at RT. In order to explore the sensing mechanism of SnO 2 @Ti 3 C 2 T x nanocomposite to NO 2 , nitrogen adsorption-desorption isotherm technology and DFT calculations were performed. They demonstrated that the high specific surface area, well-proportioned heterogeneous structure of SnO 2 @Ti 3 C 2 T x MXene, and the vital ionic bonds of Sn–N and O–N formed between substrate and NO 2 gas had beneficial effect on improving the gas response capability.
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Energetic Materials Frontiers
·
2022
·Vol. 3
·期 4
·199-208
·
IF 0
Bo Yang,Peng-fei Tang,Rui Li,Xiao-dong Li,Guang-cheng Yang
Reactive combustion catalysts (RCCs) are emerging materials for the combustion control of ammonium perchlorate (AP)-based propellants owing to their unique ability to control burning rates, high atomic utilization, and high-energy output. This paper reported that the combustion of AP-based propellants can be greatly enhanced by applying vanadium carbide (V 2 C) MXene as RCCs because of its combined advantages of unique reactivity and high chemical energy storage. The decomposition of AP in the presence of V 2 C MXene involves both direct reaction decomposition and catalytic decomposition. V 2 C MXene preferentially reacts with AP as fuel, releasing its chemical energy in the form of heat and forming VO x /C nanosheets. The VO x /C nanosheets formed in situ can serve as catalysts to promote thermal decomposition of the remaining AP. Unlike other combustion catalysts, the direct redox reaction between V 2 C MXene and AP dominates the decomposition of AP. Compared with other RCCs that mainly work through catalytic decomposition, V 2 C MXene exhibits a greatly increased burning rate, a shorter to-steady-state-combustion time, and greater energy release.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Hao Li,Zeping Li,Sisi Liu,Min Li,Xiaoyan Wen,Jihoon Lee,Shusen Lin,Ming-Yu Li,Haifei Lu
All-inorganic CsPbBr 3 perovskite quantum dots (QDs) are considered as a new generation of photoelectric material for the implementations in photodetection owing to their remarkable optoelectronic properties and optimized stability. However, the combination of the abundant trap states and unfavorable carrier transportation poses a critical hurdle for the fabrication of high- performance photodetectors. In this study, a facile strategy to significantly enhance the performance of CsPbBr 3 QD photodetectors via evenly blending 2D Ti 3 C 2 T X nanosheets is systematically demonstrated. The uniformly distributed Ti 3 C 2 T X nanosheets successfully confine incident fugacious photons throughout CsPbBr 3 QD thin films as a result of the spontaneously intensified surface electromagnetic fields, and the transportation of photogenerated carriers from CsPbBr 3 QDs are simultaneously accelerated due to the high conductivity and well-matched work function of the nanosheets. Meanwhile, the hot electrons excited from the nanosheets can also partially contribute to the increase in photocurrent, and thereby the performance of the device sensitively develops as a function of the concentration of the nanosheets. Correspondingly, a 300% enhancement is equally observed with external quantum efficiency and responsivity of the CsPbBr 3 QD/MXene nanosheet photodetectors in comparison with the pristine one under 490 nm light illumination for a long period of 4 months in the atmospheric environment.
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CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2018
·Vol. 27
·期 4
·877-883
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IF 1.712
Runlin Han,Yongli Xie,Xufeng Ma
MXene is a novel 2D lamellar material with excellent hydrophilicity and permselectivity . MXene was introduced in the P84 polymer matrix and the matrix was crosslinked with triethylenetetramine (TETA) to improve the permselectivity and solvent resistance of the polyimide membrane. The membrane was characterized with SEM, AFM and ATR-FTIR, and effects of MXene content on the membrane morphology and separation performance are investigated. The membrane prepared with 18% P84 and 1% MXene shows high rejection (100%) to gentian violet (408) and high flux (268 L·m −2 ·h −1 ) at 0.1 MPa and ambient temperature. MXene endows the membrane with much water channel and denser functional layer which improves the membrane performance obviously. The membrane shows excellent solvent resistance to dimethylformamide (DMF), acetone and methanol after crosslinking with TETA during the 18 days of immersion.
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高影响因子
ADVANCED ENGINEERING MATERIALS
·
2026
·
IF 3.6
Jianming Zhao,Peitao Xie,Yiming Zhong,Hanqing Guo,Yunpeng Qu,Yulin Wu,Juan Song
Metacomposite development faces significant challenges in achieving epsilon-near-zero (ENZ) permittivity within radio frequencies while overcoming severe dispersion limitations. To address this, Ti 3 C 2 T x MXene/polyimide nanocomposites were fabricated through mechanical mixing and pressure molding. By varying MXene content, a 3D conductive network was engineered, achieving electrical percolation. Below the threshold, dielectric behavior followed Debye relaxation, while above it, negative permittivity exhibited Drude-type dispersion. Notably, near the percolation threshold (∼78 vol%), ENZ properties emerged at 501 MHz with a unique Debye–Drude coexistence. Equivalent circuit analysis revealed a capacitive-to-inductive transition, further elucidating the low-dispersion behavior. This study introduces a novel Debye–Drude copolarization model, providing a theoretical framework for designing low-dispersion negative permittivity materials with broad electromagnetic applications.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Qianxi Fan,Ziyi Tang,Jia An,Jincai Peng,Yufei Liu
Hydrogel-based flexible electronics have attracted increasing interest due to their mechanical compliance and versatile electrical characteristics. In this work, we develop ultra-stretchable MXene-doped semi-interpenetrating polymer network (semi-IPN) hydrogels with excellent mechanical robustness (elongation at break up to 1210%) and electrical conductivity (1 S/m), enabling reliable sensing over both small (1%–5%) and large (10%–50%) strain ranges with linear responses. The underlying sensing mechanism is attributed to the synergistic evolution of the MXene-based electronic network and ionic migration channels under mechanical deformation. Based on these properties, hydrogel-based resistors and capacitors were fabricated and systematically evaluated under uniaxial stretching. Notably, the resistor and capacitor exhibit opposite strain-dependent behaviors, which allows mutual electrical compensation when integrated into a classic RC architecture. Leveraging this antagonistic coupling, we design a stretch-insensitive hydrogel low-pass filter whose cut-off frequency remains stable under mechanical deformation. Furthermore, benefiting from the hydrogel’s softness, stretchability, and robust signal output, its applicability in epidermal sensing is demonstrated through stable detection of facial expressions and joints motions. This work presents a versatile material–device strategy for constructing stable signal-processing components and multifunctional soft electronic systems.
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Materials Today Advances
·
2026
·
IF 8
Huanyan Dai,Yingxin Zhang,Zhiyan Wu,Xin Wei,Xi Li,Yifu Bian,Shichen Zhang,Zhimin Xu,Bing Han
Bone defects accompanied by inadequate energy supply remain a critical challenge, driving the development of biomaterials that actively regulate mitochondrial energy metabolism. The unique physicochemical and antioxidant properties of MXenes have attracted extensive attention in bone tissue engineering. However, whether MXene modulates mitochondrial bioenergetics to drive osteogenesis in bone marrow-derived mesenchymal stem cells (BMSCs) has yet to be fully elucidated. Here, a series of polycaprolactone (PCL) scaffolds incorporating Ti 3 C 2 MXene nanosheets (0, 0.5, 1.0, and 2.0 wt%) were fabricated via three-dimensional (3D) printing. Among these, the 1.0 wt% MXene scaffold (P1.0M) achieved a favorable combination of interconnected porous architecture, improved mechanical properties, and enhanced hydrophilicity. In vitro , P1.0M promoted the adhesion, proliferation, and osteogenic differentiation of BMSCs. Mechanistically, P1.0M enhanced mitochondrial bioenergetics, as evidenced by increased oxidative phosphorylation (OXPHOS), adenosine triphosphate (ATP) production, and mitochondrial membrane potential (ΔΨm), while effectively scavenging reactive oxygen species (ROS) to preserve mitochondrial integrity under oxidative stress. Furthermore, P1.0M enhanced cellular bioenergetics and osteogenesis in a protein kinase B (AKT)-dependent manner. In vivo , P1.0M accelerated bone repair in rat tibial defects. Collectively, these findings position this mitochondrial energy metabolism-targeted scaffold as a promising strategy for energy-demanding bone defects.
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JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Weijie Lin,Yuanhaobo Yang,Jiaxing Zhang,Qin Yang,Yingchun Gu,Runfang Fu,Bin Yan,Sheng Chen
The integration of electrochromic and energy storage functionalities into a single device offers a promising pathway toward smart energy management, yet the practical application of electrochromic supercapacitors (ECSCs) is hindered by the poor electrical conductivity, sluggish ion diffusion, and inadequate cycling stability of transition metal oxide electrodes, such as WO 3 . Although various nanostructuring and hybrid strategies have been explored, achieving a simultaneous enhancement in optical modulation, switching speed, and long-term durability remains challenging. To address these issues, we herein report a facile self-assembly strategy to construct conductive MXene-based heterostructures with WO 3 ·2H 2 O nanoparticles, yielding WO 3 ·2H 2 O/MXene (WM) composite thin-film electrodes. The optimal heterostructure (WM-7.5) exhibits enhanced conductivity and enriched electroactive sites, facilitating rapid ion/electron transport. This results in significantly improved optical modulation ( ΔT = 62% at 700 nm) and accelerated switching kinetics (coloration/bleaching times of 4.5/4.0 s). Moreover, MXene serves as a conductive scaffold that buffers volume changes and suppresses active material aggregation, endowing the electrode with exceptional cycling durability (82% capacitance retention after 10,000 cycles). Furthermore, a complementary ECSC device assembled using WM-7.5 and Prussian Blue achieves a high optical modulation ( ΔT = 61%), and fast switching (1.6/2.4 s). This work provides a general and effective route for designing high-performance, multifunctional ECSCs through rational heterostructure engineering.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Di Wu,Liya Lin,Jian Yang,Xin Jing
Overcoming the mechanical deterioration typically induced by polydopamine (PDA)-assisted dispersion of nanofillers remains a challenge in conductive hydrogels. Herein, we proposed an acid-hydrolysis nanoengineering strategy that transforms this interfacial trade-off into synergistic enhancement. First, PDA and waterborne polyurethane (WPU) are sequentially introduced to effectively inhibit MXene restacking through combined coordination and hydrogen bonding. Then, the acid-catalyzed hydrolysis step is applied to hydrolyze the amide bonds of polyacrylamide to in situ generate an acid induced network reconstruction accompanied by the formation of carboxyl/imide related functional groups and increased network densification, directly countering the mechanical compromise. Consequently, the obtained hydrogel (H-PUDMP) exhibits remarkable integrated properties: high fracture strain (1782%), enhanced fracture stress (0.43 MPa), and good conductivity (6.09 mS·cm–1). Moreover, the hydrogel displays a segmented temperature-resistance response, enabling broad-range and self-compensating temperature sensing. Moreover, it is capable of monitoring human motion in real time as a wearable sensor. When being assembled into a TENG, it achieves an output of 210 V and a power density of 5.13 W·m–2, demonstrating self-powering capability. Based on these superior sensing capabilities, the hydrogel is integrated into a Bluetooth-enabled smart glove, which successfully demonstrates accurate gesture recognition. Therefore, this acid-catalyzed hydrolysis strategy provides a paradigm for nanoengineering hydrogel electronics, transcending the conventional trade-offs between conductivity, mechanical strength, and functionality.
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PubMed
高影响因子
Nature Communications
·
2026
·
IF 18.1
Yu Hang,Xu Rongming,Ren Jiachun,Yuan Ling,Cui Zheng,Zhang Weiming,Wang Zhuyuan,Lv Lu,Zhang Xiwang,Pan Bingcai
Ion-separation membranes that combine high selectivity with high permeability are important for various practical applications. Molecular functionalization of sub-nanochannel membranes is widely used to improve ion separation selectivity; however, it often reduces ion permeation. Herein, inspired by the structural features of biological ion channels, we introduce a channel-entrance-directional functionalization strategy that integrates selective recognition with rapid ion transport. By directionally anchoring α-cyclodextrin molecules at the entrances of sub-nanochannel in two-dimensional MXene (Ti 3 C 2 T x ) lamellar membranes, we construct biomimetic ion channels in which entrance-localized recognition sites guide ion separation while unobstructed pathways enable rapid monovalent cation transport. The resulting membranes exhibit mono-/divalent cation selectivity exceeding 10 3 while preserving high permeability for monovalent ion, thereby surpassing the selectivity-permeability trade-off limit of reported ion-separation membranes. Combined experiments and simulations reveal that alterations in ion transport pathways caused by differences in ion hydration structures within sub-nanochannels are the primary mechanism for ion separation. This mechanism contrasts with conventional interpretation that primarily attributes ion separation to differences in ion-molecule binding energies. This work establishes channel-entrance engineering as a useful strategy for the design of ion-separation membranes for mono-/divalent cation separation in brine upgrading and resource-recovery.
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