MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Guoliang Zhang,Cong Xue,Ruxangul Jamal,Tursun Abdiryim,Feng Xu,Qian Cheng
L-Tyrosine (L-Tyr) is one of the 21 essential amino acids for the human body. Its accurate detection is of great clinical and practical significance in monitoring, food quality and safety. Functional groups critically govern electrochemical sensor performance by mediating target adsorption. Conventional poly (3,4-ethylenedioxythiophene) (PEDOT)-based sensors face limited flexibility and active site accessibility. Amino-grafted PEDOT was developed by in situ growth on Ti 3 C 2 T X nanosheets, incorporating small-sized Au nanoparticles to create a highly conductive and active substrate for selective detection of L-Tyr. The resulting molecularly imprinted electrochemical sensor, fabricated on the PEDOT-CH 2 NH 2 /Ti 3 C 2 T X /Au NPs/GCE platform, exhibited enhanced catalytic activity and efficient L-Tyr enrichment. The combination of components improved electron transfer, MIP stability, and imprinting cavity accessibility. The sensor demonstrated a broad linear range (10 −6 –100 μM) with an ultralow detection limit (3.64 × 10 −6 μM), and exhibited excellent selectivity, reproducibility, and operational stability. Practical tests in milk matrices confirmed high recovery rates (96.65 %–101.35 %), showcasing its potential for use in complex food systems and it also has detection capabilities similar to those of standard methods. This work provides a sensitive and reliable strategy for amino acid monitoring in food, with significant applications in food safety assurance.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Yizhi Ma,Yunxiang Yuan,Hongchao Zhang,Luning Sun,Sainan Wei
The development of electromagnetic wave-absorbing materials has attracted much attention in recent years, as the broad application of electronic devices in communication and military radar operations has brought about serious problems such as electromagnetic pollution and interference. In this study, a bimetallic MOF/MXene based electromagnetic nanocomposite CoNi@Ti 3 C 2 T x /CNT/TiO 2 (CNTCT) is developed. The composite system with multiple heterogeneous interfaces is successfully constructed by constructing a porous few-layer MXene substrate through the H 2 O 2 etching technique, combined with electrostatic self-assembly of CoNi-MOF-74 and a high-temperature annealing process. The porous MXene provides high surface area and defect sites, the CNT/TiO 2 hetero-interface generated by pyrolytic reduction effectively promotes the multi-polarization mechanism, and the magnetic CoNi component significantly enhances the magnetic loss performance through the natural/exchange resonance and eddy current loss to realize the high-performance broadband electromagnetic wave absorption. CNTCT-3 composites obtained −73.82 dB RL min at 9.74 GHz (matched thickness of 2.53 mm) and 3.79 GHz EAB; when the thickness was reduced to 1.93 mm, the EAB was expanded to 5.65 GHz. This work provides insights into potential applications of novel MXene-derived composites in electromagnetic wave absorption through dielectric-magnetic synergistic effects and structural modulation applications.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Fang Liu,Jiali Wang,Wei Chen,Xiaoying Zhang,Shengting Li,Jinping Li,Yu-Fei Song,Jinfeng Chu,Guang Liu
Magnesium hydride (MgH 2 ) is broadly deemed as one of the most prospective solid-state hydrogen storage materials. However, its large-scale application is hindered by several drawbacks, including an excessive dehydrogenation temperature (>300 °C), sluggish kinetic behavior, and inevitable agglomeration and growth during cycling. To address these challenges, two-dimensional few-layered laminated titanium carbide catalyst (FL-Ti 3 C 2 T x ) was synthesized via LiF/HCl etching followed by liquid-phase ultrasonic exfoliation. These FL-Ti 3 C 2 T x nanosheets exhibit efficient catalytic activity for MgH 2 hydrogen storage. The incorporation of 5 wt% FL-Ti 3 C 2 T x significantly reduces the initial dehydrogenation temperature of MgH 2 from 325 °C to 199 °C, while enabling the dehydrogenated sample to reabsorb hydrogen at room temperature. The MgH 2 + 5 wt% FL-Ti 3 C 2 T x composite demonstrates remarkable kinetic performance, releasing 6.5 wt% H 2 within 8 min at 300 °C and uptaking 5.49 wt% H 2 within 1 min at 100 °C. Even after 50 cycles of consecutive dehydrogenation and rehydrogenation, the composite retained a hydrogen storage capacity of 6.90 wt%, corresponding to a 95.30 % capacity retention rate. Microstructure analysis and theoretical calculations reveal that the unique lamellar morphology of FL-Ti 3 C 2 T x not only provides abundant active sites and hydrogen diffusion paths, but also effectively suppresses the agglomeration and growth of Mg/MgH 2 matrix during the hydrogen absorption and desorption. More importantly, the in-situ formed Ti/TiH 2 functions as a “hydrogen pump” accelerating hydrogen diffusion, prolonging the Mg H bond length, and weakening the interaction between Mg and H. These factors synergistically enhance the absorption/desorption kinetics of MgH 2 .
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PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Xuechun Wang,Yanxiang Sang,Hongjie Zhang,Benyan Zheng,Bibo Wang,Yuan Hu,Ruiying Wu
As a wound management strategy, this study developed a nanocomposite hydrogel based on the photothermal therapy and photodynamic therapy of nanomaterials, as well as the effects of Bletilla striata polysaccharide (BSP). In this research, MXene nanosheets loaded with indocyanine green were embedded into a hydrogel doped with BSP. By combining the photothermal effect and photodynamic effect, the treatment of wounds infected with Staphylococcus aureus was achieved under 808 nm near-infrared light irradiation (NIR). The characterization results of the hydrogel showed that it had good adhesiveness with an adhesive strength of 629 KPa ± 15.52 KPa and excellent biocompatibility; the swelling rate after 48 h was 485.53 % ± 0.26 %. In terms of antibacterial performance, the hydrogel had an antibacterial rate of over 90 % against Staphylococcus aureus . In addition, it could significantly promote the deposition of collagen and angiogenesis in infected wounds. When applied to wound treatment, the wound closure rate reached 98 % after 14 days, the collagen fraction of the healed wound was 87.63 % ± 1.81 %, and the epidermis thickness was 130.33 μm ± 1.25 μm. This indicated that the nanocomposite hydrogel dressing could effectively promote wound healing.
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PubMed
高影响因子
APPLIED CLAY SCIENCE
·
2021
·
IF 5.467
Guangyong Zeng,Ke Wei,Haiyan Zhang,Jun Zhang,Qingquan Lin,Xiaojie Cheng,Arijit Sengupta,Yu-Hsuan Chiao
The oily wastewater is one of the major waste streams generated due to industrialization. The membrane technology has prominent advantages in the field of oily wastewater treatment . In present investigation, halloysite nanotubes (Hal) and polydopamine (PDA) were utilized to synergistically modify MXene followed by the fabrication of a series of Hal@MXene-PDA two-dimensional (2D) composite membranes by vacuum filtration. Observing the morphology of the membrane and exploring the change in interlayer space by scanning electron microscope (SEM), atomic force microscope (AFM) and X-ray diffraction (XRD), it was confirmed that, the composite membrane was successfully modified. The results revealed that, the Hal@MXene-PDA composite membrane exhibits higher hydrophilicity compared to the virgin membrane. The pure water flux using the composite membrane was found to be 5036.2 L·m −2 ·h −1 ·bar −1 , and the rejections of petroleum ether and lubricating oil were evaluated as 99.8%. The modified membrane(M6) also shows good anti-fouling ability in the anti-fouling cycle test and hence can be considered as a potential candidate for oil-water separation.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 4
·2597-2609
·
IF 4.682
Zhai Wangyi,Cao Yuanming,Li Yifei,Zheng Min,Wang Zuoshan
The exploration of novel and multifunctional coatings through composite nanomaterials design is crucial for developing next-generation polyester fabrics. Herein, we report an efficient approach of self-assembling MoO 3– x QDs on MXene (Ti 3 C 2 T x ) to fabricate multifunctional polyester fabrics. In a typical preparation, MoO 3– x QDs with an average size of 5 nm were uniformly distributed on the surface of MXene nanoflakes upon UV light. Then, polyester fabrics were coated with MoO 3– x QDs/MXene by dipping. The results demonstrated that the coated fabric had a decreasing trend in the electrostatic half-period from more than 60 s (untreated fabric) to 0.15 s and had excellent washing fastness. In addition, a similar phenomenon was found in smoke suppression, with the coated fabric producing 36.16% less smoke. More importantly, the sterilization rate of the coated fabric had reached 99% to E. coli and S. aureus under sunlight owing to the strong response of MoO 3– x QDs/MXene. This work provides a novel and facile strategy to design multifunctional coatings.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2021
·
IF 7.46
Rongyang Liu,Li Jiang,Zizhen Yu,Xufeng Jing,Xiu Liang,Dan Wang,Bo Yang,Chengxing Lu,Wei Zhou,Shangzhong Jin
Recent years, two-dimensional transition metal carbonitrides, MXene, have emerged as SERS substrates due to their unique optical and electrical properties. In order to combine the advantages of metal nanoparticles and MXene for SERS substrates, this paper prepared an MXene (Ti 3 C 2 T x ) -Ag nanoparticles (NPs) hybrid biosensor through in-situ electrostatic self-assembly method, in which the citrate-coated Ag NPs are loaded on the negatively surface of Ti 3 C 2 T x flakes through positively charged PDDA polymer. The characterizations show that a large number of Ag NPs uniformly adsorb on both side of Ti 3 C 2 T x nanosheets. The prepared platform exhibits excellent SERS performance, long-term stability and good uniformity by detecting 4-MBA molecules. The electromagnetic field distribution was simulated to theoretically show the Raman enhancement mechanism of this platform. In order to explore the possible application of the sensor in clinical diagnosis and monitoring of biological environment, the platform was used for biomolecule detection. The detection limit of adenine molecules can be as low as 10 −8 M. For dopamine molecules with concentration ranging from 5 × 10 -6 M to 5 × 10 −8 M, the SERS results show a linear relationship between peak intensity and concentration of dopamine molecules. The biosensor was applied for serum detection. The results suggest that MXene-PDDA-Ag NPs hybrid platform could be used as a sensitive and uniform biosensor for label-free quantitative detection of bio-molecular based on SERS method, which could be applied in the field of biotechnology.
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高影响因子
SOLAR ENERGY
·
2021
·
IF 5.742
Xiaobo Chen,Yefei Zhuang,Qingyu Shen,Xiaoyu Cao,Wen Yang,Peizhi Yang
Low electrocatalytic activity and/or high charge transfer resistance of counter electrodes (CEs) in quantum-dot-sensitized solar cells (QDSSCs) are the main reasons for the low photovoltaic performance . Herein, the CoS nanoparticles are anchored on the MXene (Ti 3 C 2 T x ) via a simple in-situ hydrothermal reaction process. It is the first attempt to use the MXene/CoS as a highly electrocatalytic CE for QDSSCs . The QDSSCs with a MXene/CoS CE shows a significant enhancement in cell performances and yields a promising power conversion efficiency (PCE) of 8.09% compared with that of the QDSSCs with bare CoS (5.77%) and bare MXene (4.25%) CEs. The significant enhancement of PCE value is mainly attributed to the synergistic effects of the unique layered morphology of conductive MXene nanosheets and its cocatalysis with CoS nanoparticles. The coupling of layered MXene with small CoS nanoparticles (~15 nm) provides abundant catalytic active sites. The improved mesoporous morphology contributes a high specific surface area and fast electron transfer channels for S x 2− reduction. Consequently, the MXene/CoS nanocomposite can be utilized as an effective agent to boost up the photovoltaic performance of QDSSCs.
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高影响因子
DIAMOND AND RELATED MATERIALS
·
2025
·
IF 5.1
Jinpu Fang,Youliang Cheng,Xinyi Cheng,Changqing Fang,Jing Chen,Xin Zhang,Yuzhen Wang,Yanli Du,Xingbo Yao
Cu 2+ -containing wastewater causes serious risks to environmental and human health, necessitating efficient Cu 2+ removal. The electrosorption has present a promising alternative pattern in the field of wastewater treatment containing metal ions, however, it is still a challenge to develop appropriate electrode materials to efficiently remove Cu 2+ in wastewater. Thus, the Ti 3 C 2 T x /cellulose acetate composite films were prepared by incorporating less-layered Ti 3 C 2 T x into cellulose acetate matrix via a casting method in this work. Their morphology, microstructure, electrochemical performances and adsorption mechanism were investigated by scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Brunauer–Emmett–Teller method, electrochemical workstation, Lagergren and pseudo-second order kinetic models, Freundlich and Langmuir adsorption models. These results showed that less-layered Ti 3 C 2 T x nanosheets were stacked orderly in the composite films where cellulose acetate filled the interlayer space and then expanded this spacing. The sample of CT-1 had the highest specific surface area of 3.83 m 2 /g with the average pore size of 16.86 nm. Additionally, the sample of CT-3 had the highest specific capacitance. Interestingly, the sample of CT-2 with moderate specific surface area, average pore size and specific capacitance exhibited the maximum electrosorption capacity of 3.39 mg/g at an applied voltage of 1.0 V in a 10 mg/L CuSO 4 solution, corresponding to a removal efficiency of 21.55 %. The adsorption process followed pseudo-first-order kinetics and Langmuir isotherm model, indicating that it was dominated by monolayer chemisorption. Therefore, these findings demonstrate the successful development of Ti 3 C 2 T x /cellulose acetate composite films as novel electrosorption materials, providing a viable strategy for wastewater treatment containing Cu 2+ that aligns with environmental sustainability objectives.
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高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 32
·17390-17399
·
IF 12.732
Tianshi Zhao,Chenguang Liu,Chun Zhao,Wangying Xu,Yina Liu,Ivona Z. Mitrovic,Eng Gee Lim,Li Yang,Ce Zhou Zhao
MXenes are a large class of two-dimensional (2D) materials widely studied recently since they have good water solubility and are able to tune the work function (WF) of materials without changing their electronic characteristics. Based on this, aqueous solution-processed indium-free zinc tin oxide (ZTO) thin-film transistors (TFTs) have been fabricated under an annealing temperature of 300 °C and successfully optimized. This optimization is achieved by fabricating a channel layer into a homojunction structure (MXene doped ZTO/ZTO) to form a two-dimensional electron gas (2DEG). Through doping the specific concentrations of Ti3C2Tx MXenes into the upper layer ZTO thin films, the TFTs exhibit enhanced field-effect mobilities (μFE) of 10.77 cm2 V−1 s−1 and 13.06 cm2 V−1 s−1 as well as a large on/off current ratio of more than 108. Moreover, compared with the undoped double-layer ZTO TFTs, the homojunction devices show better stability, mainly resulting from the transformation in leading conduction mode. Finally, through applying the homojunction channel on the solution-processed aluminum oxide (AlOx) dielectric layer, the μFE exhibits a further enhanced value of 28.35 cm2 V−1 s−1. This is the first report to apply MXenes to the channel layer of TFTs and to fabricate solution-processed ZTO thin films via an aqueous solvent under 300 °C.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2021
·Vol. 31
·期 24
·2010987
·
IF 18.808
Di Yang,Chunyu Zhao,Ruqian Lian,Lin Yang,Yizhan Wang,Yu Gao,Xu Xiao,Yury Gogotsi,Xudong Wang,Gang Chen,Yingjin Wei
The propensity of Li to form irregular and nonplanar electrodeposits has become a fundamental barrier for fabricating Li metal batteries. Here, a planar, dendrite-free Li metal growth on 2D Ti 3 C 2 T x MXene is reported. Ab initio calculations suggest that Li forms a hexagonal close-packed ( hcp ) layer on the surface of Ti 3 C 2 T x via ionic bonding and the lattice confinement. The ionic bonding weakens gradually after a few monolayers, resulting in a nanometers-thin transition region of hcp -Li. Above this transition region, the deposition is dominated by plating of body-centered cubic ( bcc ) Li via metallic bonding. Formation of a dense and planar Li metal anode with preferential growth along the (110) facet is explained by the lattice matching between Ti 3 C 2 T x and hcp -Li and then with bcc -Li, as well as preferred thermodynamic factors including the large dendrite formation energy and small migration barrier for Li. The prepared Li metal anode shows stable cycling in a wide current density range from 0.5 to 10.0 mA cm –2 . The LiFePO 4 ‖Li full cell fabricated with this Li metal anode exhibits only 9.5% capacity fading after 500 charge–discharge cycles at 1 C rate.
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高影响因子
Sustainable Materials and Technologies
·
2026
·
IF 9.7
Muhammad Muneeb Ahmad,Areena Fatima,Yunyun Ma,Munzar Badshah,Xiaoqin Ma,Zhaowei Qu,Lulu Huang,Lin Zhang,Vadivel Saravanan,Quansheng Xing,Zhaoyan Wang,Qiaosheng Pu
Solar-driven interfacial water evaporation offers a transformative and sustainable route to alleviate the global freshwater crises through localized photothermal conversion. Cellulose microfibers (CMFs), derived from abundant agricultural waste such as wheat straw, serve as a renewable and valuable reinforcing material in Ti 3 C 2 T x /alginate/CMFs hydrogel, enhancing its porous structure and water transport properties for efficient solar-driven water evaporation and desalination. A highly hydrophilic Ti 3 C 2 T x /alginate/CMFs hydrogel, optimized via a unique one-layer and two-layer freeze casting strategy, features a porous architecture with interconnected CMFs networks, enabling ultrafast water transport, broadband solar absorption, and high photothermal conversion for water evaporation. Under one-sun irradiation (1 kW m −2 ), the optimized hydrogel evaporator (MACMF-8) achieved an evaporation rate of 1.66 kg m −2 h −1 with an evaporation efficiency of 85.41%. The hydrogel exhibited excellent salt rejection, maintaining a high evaporation rate of 1.57 kg m −2 h −1 in 5 wt% NaCl solution with only a minor 3.13% decrease over a 10-day desalination period. Using a simple device under one-sun irradiation for 12 h, 18.48, 19.33, 19.83, and 19.81 kg m −2 of purified water were obtained from 5 wt% NaCl solution, simulated seawater, ponceau S, and crystal violet dye solution, respectively. Combining scalability, durability, and solar-driven operation, the Ti 3 C 2 T x /alginate/CMFs hydrogel represents a highly promising platform for sustainable water purification and desalination.
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高影响因子
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