Nano-Micro Letters
·
2021
·Vol. 13
·期 1
·1-13
·
IF 16.419
Qu Danyao,Jian Yingying,Guo Lihao,Su Chen,Tang Ning,Zhang Xingmao,Hu Wenwen,Wang Zheng,Zhao Zhenhuan,Zhong Peng,Li Peipei,Du Tao,Haick Hossam,Wu Weiwei
An organic solvent-assisted intercalation and collection (OAIC) approach for preparing Ti 3 C 2 T x (MXene) was developed.
The features of OAIC approach are the low requirement for facility, gram-level preparation with remarkable yield and easy control over the dimension of Ti 3 C 2 T x flakes.
The Ti 3 C 2 T x flakes prepared by OAIC approach showed the outstanding capacitive and rate performance.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2023
·
IF 9.5
Hongxin Tan,Jingren Gou,Xin Zhang,Li Ding,Haihui Wang
The electromagnetic interference (EMI) shielding abilities of MXene-based conductive nanocomposites are promising for ensuring the steady operation of electronic equipment and protecting people from electromagnetic radiation. The development of comprehensive membranes that satisfy all the essential requirements of excellent EMI shielding and infrared (IR) stealth performance remains a significant issue, despite the high EMI shielding capabilities of MXene-based composite membranes . Here, we report a sandwich-structured Ti 3 C 2 T x -MXene/reduced-graphene-oxide (MrG) membrane with high conductivities and abundant interior blowholes for high-performance EMI shielding and IR stealth. Taking advantage of the continuously conductive routes and distinctive porous structures, an 18-μm-thickness MrG membrane shows a high EMI shielding efficiency (EMI SE) of 89.1 dB and a satisfactory absolute EMI SE ( S S E /t) of up to 55282.8 d B ⋅ c m 2 ⋅ g − 1 , which is the best result for MXene-based nanocomposites with similar thickness. Moreover, the MrG membrane also exhibits superior thermal camouflage ability for objects in low-temperature circumstances (like winter) and high-temperature cases (like summer), demonstrating the great promise as high-performance EMI shielding membranes for IR stealth, security protection, and counter-surveillance.
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高影响因子
TALANTA
·
2026
·
IF 6.7
Feier Jiang,Dongmei Liu,Guang Yang,Miaomiao Hu,Cheng Ye,Xu Sun,Hui Sun,Maofeng Zhang
An ordered PMMA@Ti 3 C 2 T x -Ag composite array SERS substrate was fabricated using PMMA microsphere templates and in-situ AgNP immobilization. • Synergistic electromagnetic and chemical enhancement generated abundant hotspots and excellent SERS uniformity (RSD < 5%). • Ultrasensitive detection was achieved for CV and 4-ATP down to 10 −9 M, and for diquat/triazophos and thiram down to 10 −8 and 10 −7 M, respectively. • The platform enabled simultaneous pesticide identification and in-situ residue analysis on blueberry and cherry tomato surfaces below EU maximum residue limits. The rapid identification and quantitative detection of pesticides on a portable device is of vital importance for food safety evaluation and human health protection. However, conventional strategies for realizing the reliable, portable and sensitive detection of target analytes are still challenging. In this work, the ordered polymethyl methacrylate (PMMA) microspheres array were employed as template to fabricate PMMA@Ti 3 C 2 T x . Silver nanoparticles (AgNPs) were then uniformly immobilized onto the composite substrate through an in-situ route, generating abundant electromagnetic hotspots. Benefiting from the synergistic electromagnetic and chemical enhancement, a high-performance PMMA@Ti 3 C 2 T x -Ag composite array SERS substrate was successfully fabricated. The prepared array substrate exhibits excellent SERS performance with good uniformity (relative standard deviation, RSD < 5%) and satisfactory stability. It achieves the detection concentration of 10 −9 M for probe molecules of crystal violet (CV) and 4-aminothiophenol (4-ATP). For pesticide detection using standard solutions, the substrate realizes trace detection of diquat and triazophos down to 10 −8 M, while the detection concentration for thiram is 10 −7 M. Taking advantage of the unique molecular fingerprint signature of SERS, the platform enables simultaneous identification of various pesticide molecules. Further practical tests were carried out to perform in-situ analysis of pesticide residues on the surfaces of blueberries and cherry tomatoes. The detectable concentrations of target pesticides are well below the maximum residue limits stipulated by the European Union, demonstrating the great potential of the SERS platform for rapid screening applications in food safety monitoring. These results indicate the promising potential of the sensing platform for rapid on-site monitoring of pesticide residues in complex food matrices. For the spiked fruit-surface experiments, diquat and triazophos were detected down to 10 −7 M, whereas thiram was detected at 10 −6 M. Download: Download high-res image (363KB) Download: Download full-size image
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高影响因子
MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 11
·1-13
·
IF 5.3
Zhao Zhihua,Su Zijie,Lv Zhenli,Shi Pu,Jin Guixin,Wu Lan
Bi 2 S 3 /Ti 3 C 2 T x nanomaterials were successfully prepared through a simple hydrothermal method. Various methods were used for their characterization, including XRD, XPS, SEM, EDS, and BET, along with testing their gas-sensing properties. The results showed that the response value to 100 ppm ammonia at room temperature reached 107%, which was 14.1 times higher than that of pure few-layer MXene. After undergoing anti-humidity interference testing, we observed that Bi 2 S 3 /Ti 3 C 2 T x exhibited a higher response value in real-time monitoring of ammonia as humidity increased. Specifically, under 90% humidity conditions, its response value reached 1.32 times that of normal humidity conditions. This exceptional moisture resistance ensures that the sensor can maintain stability, and even exhibit superior performance, in harsh environments. Therefore, it possesses excellent selectivity, high-moisture-resistance, and long-term stability, making it significant in the field of medical and health monitoring. Graphical abstract
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PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Qiyue Jia,Hongyu Gao,Wenling Du,Jiaxin Bai,Mei Li,Jiansheng Liu,Zhanli Chai
Expediting the separation and transfer of photogenerated carriers is crucial for plasmonic materials to improve the performance of photocatalysts. However, it remains a significant challenge to strengthen the local surface plasma resonance (LSPR) through the modulation of surface functional groups. Herein, Ti 3 C 2 T x MXene is combined with two typical semiconductor materials to form Ti 3 C 2 T x /CdS (TCS) with dominated surface O x groups and Ti 3 C 2 T x /C 3 N 4 (TCN) with surface-terminated F x species. The obtained TCS composite shows a higher photocatalytic performance (96.7 %) than TCN (86.7 %) and the corresponding bare catalysts in the degradation of tetracycline within 60 min under visible-light irradiation. Moreover, the degradation rate of Ti 3 C 2 T x /CdS composite decreases by only 2.3 % after 4 cycles photocatalytic process, which is more stable than Ti 3 C 2 T x /C 3 N 4 (3.3 %) and CdS (39.3 %). The improved photocatalytic activity and stability mainly result from the enhanced LSPR effect of Ti 3 C 2 T x MXene. In particular, the better performance of TCS compared to TCN indicates that the LSPR effect is highly related to the surface-terminated [O]/[F] ratio. These results directly provide a strategy to enhance the electric field dynamics of MXene materials for improving photocatalytic performance.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Jiamin Xiao,Wei Wan,Jiaxin He,Junrong Luo,Yushuang Wang,Jie Gu,Tingna Xiao,Ruqing Wan,Ye Chen,Yuejun Ouyang
The rapid advancement of flexible electronics is driving an urgent demand for polymer-based composites that synergistically possess high dielectric performance and superior mechanical properties. This study presents Ti 3 C 2 T x MXene/millable polyurethane (MPU) composite films fabricated via a combined mixing and hot-pressing approach, with a systematic investigation into the effects of MXene content on their properties. The dielectric constant increased linearly with filler content, attaining a value of 11.71 at 1 kHz for the composite with 12 wt% filler. An optimal balance was achieved at 8 wt% loading, yielding a dielectric constant of 11.13 (a 17.3 % enhancement over the neat MPU matrix value of 9.49) coupled with a low dielectric loss of 0.037. The breakdown strength peaked at 69.5 kV/mm for the 6 wt% composite (a 21.5 % improvement) and remained high at 60.2 kV/mm for the 8 wt% composite (a 5.2 % increase). Mechanical properties were significantly enhanced, with the elongation at break reaching a maximum of 682.7 % (94.8 % increase) and 614.1 % (75.3 % increase) at 10 wt% and 8 wt% loadings, respectively. Thermal stability was also enhanced, as evidenced by a 14.4 °C increase in the temperature for 5 % weight loss (to 276.1 °C) for the 10 wt% composite. Microstructural analysis revealed that the uniform dispersion of MXene enhanced interfacial polarization, the hot-pressing-induced orientation of lamellar planes elongated the electrical tree path, and a hydrogen-bonding network formed between the surface functional groups (–O, –OH) of MXene and MPU synergistically improved interfacial stress transfer and thermal stability. This work demonstrates the synergistic optimization of electrical, mechanical, and thermal properties via gradient filler content control, offering a novel strategy for designing high-performance flexible electronic materials.
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高影响因子
JOURNAL OF FOOD SCIENCE
·
2025
·Vol. 90
·期 9
·e70571
·
IF 3.4
Xiaoya Meng,Zhongyu Li,Zili Xia,Dongdong Chen,Zijing Yuan,Yang Han,Heng Zhang,Xia Sun,Jun Seop Lee,Usmanova Surayo Rakhmatzhanovna,Bobokalonov Jamshed Tolehmurodovich,Wenping Zhao
An electrochemical aptasensor based on Ti 3 C 2 T x (MXene) and cDNA-PAA was established for sensitive detection of aflatoxin B1 (AFB1) in peanuts. The high specific surface area of Ti 3 C 2 T x (MXene) contributed to improve electrochemical efficiency and enhancing sensor stability which were characterized by the Randles−Sevcik equation. The self-made polyacrylic acid (PAA) nanogel was added with aptamer complementary chain (cDNA) to form cDNA-PAA nano gel composite, which could realize the synergistic amplification of the difference between the electrochemical signals before and after the addition of AFB1. The sensing effect of cDNA-PAA was validated using DPV. Methylene blue (MB) was modified at the proximal 3′ termini of the aptamer (Apt-MB), meanwhile AuNPs was used to immobilize Apt-MB and improve the efficiency of electrochemical reactions. The competition between AFB1 and cDNA-PAA combined with Apt MB resulted in a significant change in the electrochemical signal current. In addition, the constructed electrochemical aptasensor had a lower detection limit of 1.0 × 10 −3 ng/L for AFB1 under optimal detection conditions, and a detection range of 1 to 1000 ng/L. Moreover, peanuts with different concentrations of AFB1 were used as actual detection samples. Through the constructed sensor detection, the spiked recovery rates within the spiking range of 50 to 500 ng/mL were 97.76% to 101.84% ( n = 3).
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高影响因子
JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Shenglin Cheng,Yunfei Dong,Xuan Liu,Zengjie Wang,Xiang Li,Jilai Xue
Parasitic hydrogen evolution reaction (HER) and anode passivation are two intertwined challenges that profoundly limit the energy efficiency and operational lifespan of alkaline aluminum-air (Al-air) batteries. Here, we construct a uniform Ti 3 C 2 T x MXene functional layer on pure aluminum (Al) surface via a facile solution-immersion self-assembly process. The assembled MXene architecture acts a highly effective, selective interfacial regulator with state-dependent dual-functionality. During open-circuit standby, its unique 2D structure impedes water reduction, yielding a ∼46% reduction in the HER rate (from 0.129 to 0.070 ml cm −2 ·min −1 ). Conversely, during discharge, the intrinsically conductive MXene framework facilitates highly uniform anodic dissolution. Consequently, in static alkaline cells (10 mA cm −2 ), the MXene-Al anode delivers an exceptional specific capacity of 2216 mAh·g −1 and an energy density of 3303 Wh·kg −1 , substantially outperforming pure Al (1350 mAh·g −1 , 1818 Wh·kg −1 ). Furthermore, under cyclic on/off discharge with electrolyte flow, the functionalized anode extends operational lifetime by roughly one-third (from 82 to 111 h). Post-discharge characterization confirms that the MXene layer remains structurally intact on the Al surface after prolonged operation. These results establish solution-assembled MXene functional layers as a practical approach for simultaneously addressing HER and passivation in alkaline Al-air batteries.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Mengxiang Liu,Mengle Li,Ziqian Xu,Miao Li,Jiale Fan,Yu Zhang,Kaibo Yu,Zihan Kong,Tao Zhang,Xiaoxiao Huang
Interfacial polarization tuning via BO x F y modification and in situ N-doped carbon • Synergistic interfacial polarization for dielectric response and impedance matching • Minimum reflection loss of −58.97 dB with a bandwidth of 4.24 GHz Pristine Ti 3 C 2 T x MXene generally suffers from severe impedance mismatch arising from its excessive electrical conductivity, which fundamentally limits efficient electromagnetic wave (EMW) attenuation. Herein, an interfacial modulation strategy is proposed by integrating fluorinated boron oxide (BO x F y ) nanophases and in situ derived N-doped carbon into a Ti 3 C 2 T x MXene framework through a hydrothermal process. Distinct from conventional boron-containing modification, the introduced BO x F y species provide abundant polarization-active sites and tailor the local interfacial environment through the coexistence of B O and B F coordination, thereby improving dielectric polarization and impedance matching. Meanwhile, the in situ formed N-doped carbon establishes defect-rich conductive networks, enabling balanced conductive loss and dipolar polarization. More importantly, the synergistic coupling among BO x F y nanophases, N-doped carbon, and Ti 3 C 2 T x MXene constructs abundant heterogeneous interfaces and multiscale conductive pathways, facilitating interfacial polarization and electromagnetic energy dissipation. As a result, the optimized BN(1:1)-MXene achieves a minimum reflection loss of −58.97 dB at 1.77 mm and an effective absorption bandwidth of 4.24 GHz. Furthermore, radar cross-section simulations demonstrate remarkable electromagnetic scattering suppression with a maximum reduction of 32.05 dB m 2 at normal incidence. This work highlights the synergistic effects of interfacial modulation on electromagnetic attenuation, offering a promising strategy for high-performance MXene-based EMW absorbers. Download: Download high-res image (320KB) Download: Download full-size image
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Journal of Energy Storage
·
2026
·
IF 10.7
Kui Cao,Yue Han,Fanen Zeng,Xin Wu,Yang Sun,Zihao Zhang,Xiuna Xue,Yu Shen,Bing Xu
The emergence of Ti 3 C 2 T X as a novel two-dimensional transition metal carbide catalyst support has sparked widespread research interest due to its high electrical conductivity and tunable surface chemistry. To address the inherent interlayer stacking limitations of conventional Ti 3 C 2 T X , the single-layer Ti 3 C 2 T X (SL-Ti 3 C 2 T X ) support was prepared via selective etching of aluminum from bulk Ti 3 AlC 2 , followed by liquid-phase exfoliation of multilayered Ti 3 C 2 T X into nanosheets. Subsequently, a high-performance Pt/SL-Ti 3 C 2 T X composite electrocatalyst was synthesized by in situ reducing Pt 2+ into Pt nanoparticles (Pt NPs) through an ethylene glycol-mediated reduction method. Electron microscopy analyses demonstrated that Pt NPs (~2.89 nm size) uniformly loaded on the wrinkled surface of SL-Ti 3 C 2 T X nanosheets with thickness of 1.5 nm. Raman spectrum analysis revealed the functionalization of the support SL-Ti 3 C 2 T X (T X : O, -OH and F), while the strong metal-support interaction (SMSI) between Pt NPs and SL-Ti 3 C 2 T X was indicated through XPS patterns of the sample. With an electrochemical active surface area (ECSA) of 176 m 2 ·g −1 and a half-wave potential (E 1/2 ) of 0.874 V, the produced composite catalyst outperformed Pt‑carbon (Pt/C) catalyst in acidic electrolytes in terms of oxygen reduction reaction (ORR) performance. After undergoing 30,000 cycles of accelerated durability testing (ADT), the Pt/SL-Ti 3 C 2 T X catalyst maintained 77% of its initial activity, with a mass activity loss of only 22%, while the corresponding data for Pt/C are 51% and 48%, respectively. Based on its unique advantages including the single-layer structure and surface functionalization, SL-Ti 3 C 2 T X could be used as a high-performance catalyst support to produce highly active and stable electrocatalysts for ORR in energy conversion field.
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高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2026
·
IF 5.9
Qi-qi Jing,Zhi Huang,Yan-ying Liu,Qian Zhang
This work proposed a novel mechanism linking Cu(OH) 2 to MXene material, which promotes the development of 2D-dimensional material in TC degradation. • The optimized system enhances the efficiency by generating ·O 2 − and 1 O 2 , ·OH. ·O 2 − plays a significant role in TC degradation. • The catalyst maintain 87.94% activity over 4 times recycle, outperforming existing materials. • Performance of the strategy is friendly to environment, the metabolite is CO 2 and H 2 O. Ti 3 C 2 T x has emerged as a promising electrocatalyst for environmental remediation, yet its practical application is often limited by insufficient active site exposure and poor operational stability. In this study, we developed out-of-plane Cu-functionalized Ti 3 C 2 T x nanosheets (Ti 3 C 2 Tx@Cu) decorated with Cu(OH) 2 clusters of approximately 5-30 nm in size, which significantly enhance the electrocatalytic degradation of tetracycline hydrochloride (TC). Comprehensive theoretical and experimental analyses confirm that the spontaneously anchored Cu species not only improve electrical conductivity but also markedly boost catalytic activity. The optimized Ti 3 C 2 Tx@Cu catalyst achieves complete degradation of TC within 30 min, outperforming pristine Ti 3 C 2 T x. Mechanistic investigations reveal that the introduction of Cu promotes the predominant generation of superoxide radicals (·O 2 − ), shifting the degradation pathway from a combined effect of ·OH, ·O 2 − and 1 O 2 in the pure Ti 3 C 2 T x system to a ·O 2 − dominated process in the Ti 3 C 2 Tx@Cu system. This work provides an effective strategy for enhancing MXene-based electrocatalysts and underscores their potential in addressing antibiotic contamination, thereby contributing to public health and environmental sustainability.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Rong Ma,Xiaochun Tao,Shuo Li,Chenglong Chen,Qinqin Liu,Shaosheng Rao,Juan Yang
Two-dimensional (2D/2D) heterojunction photocatalysts hold great promise for solar-driven antibacterial disinfection owing to their unique interfacial architectures and tunable electronic properties. However, insufficient interfacial electronic coupling and ineffective charge separation still hinder their practical performance. Here, a sulfur-doped g-C 3 N 4 /Ti 3 C 2 Tx-MXene (SCN/MXene) 2D/2D heterojunction is rationally designed to enable efficient charge separation and transfer, delivering superior solar-driven antibacterial activity with remarkable stability. Combined experimental and theoretical analyses reveal that sulfur doping modulates the electronic structure of g-C 3 N 4 , elevates its Fermi level, and strengthens interfacial electronic coupling with Ti 3 C 2 Tx-MXene, thereby enhancing the built-in electric field and facilitating charge transfer across the interface. Moreover, S-doping induces interfacial charge redistribution, enhancing O 2 adsorption and activation at Ti sites and thereby accelerating the generation of reactive oxygen species (ROS). Consequently, SCN/MXene achieves nearly complete inactivation of Escherichia coli , Staphylococcus aureus , and methicillin-resistant Staphylococcus aureus within 60 min under solar irradiation, outperforming most of the state-of-the-art photocatalysts.
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高影响因子
危险品化学品经营许可证（带存储）