ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Junlin Chen,Xiang Chen,Zhifeng Hao,Zhuorui Wu,Mohamed S. Selim,Jian Yu,Yingming Huang
To solve the problem of ice condensation and adhesion, it is urgent to develop new anti-icing and deicing technologies. This study presented the development of a highly efficient photothermal-enhanced superhydrophobic PDMS/Ni@Ti3C2Tx composite film (m-NMPA) fabricated cost-effectively and straightforwardly. This film was fabricated utilizing PDMS as a hydrophobic agent, adhesive, and surface protector, while Ni@Ti3C2Tx as a magnetic photothermal filler innovatively. Through a simple spraying method, the filler is guided by a strong magnetic field to self-assemble into an eyelash-like microstructure array. The unique structure not only imparts superhydrophobic properties to the surface but also constructs an efficient “light-capturing” architecture. Remarkably, the m-NMPA film demonstrates outstanding superhydrophobic passive anti-icing and efficient photothermal active deicing performance without the use of fluorinated chemicals. The micro-/nanostructure of the film forms a gas layer, significantly delaying the freezing time of water. Particularly under extreme cold conditions (−30 °C), the freezing time is extended by a factor of 7.3 compared to the bare substrate. Furthermore, under sunlight exposure, surface droplets do not freeze. The excellent photothermal performance is attributed to the firm anchoring of nickel particles on the MXene surface, facilitating effective “point-to-face” photothermal synergy. The eyelash-like microarray structure enhances light-capturing capability, resulting in a high light absorption rate of 98%. Furthermore, the microstructure aids in maintaining heat at the uppermost layer of the surface, maximizing the utilization of thermal energy for ice melting and frost thawing. Under solar irradiation, the m-NMPA film can rapidly melt approximately a 4 mm thick ice layer within 558 s and expel the melted water promptly, reducing the risk of secondary icing. Additionally, the ice adhesion force on the surface of the m-NMPA film is remarkably low, with an adhesion strength of approximately 4.7 kPa for a 1 × 1 cm2 ice column. After undergoing rigorous durability tests, including xenon lamp weathering test, pressure resistance test, repeated adhesive tape testing, xenon lamp irradiation, water drop impact testing, and repeated brushing with hydrochloric acid and particles, the film’s surface structure and superhydrophobic performance have remained exceptional. The photothermal superhydrophobic passive anti-icing and active deicing technology in this work rely on sustainable solar energy for efficient heat generation. It presents broad prospects for practical applications with advantages such as simple processing method, environmental friendliness, outstanding anti-icing effects, and exceptional durability.
研究领域:
材料科学
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能源科学
·
表面工程
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PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Yue Sun,Zhuo Liu,Yuchi Zhang,Le Han,Yan Xu
Photoexcitation is an effective method to promote specific gas sensing performance of semiconductor for electronic device. In this work, an interlayered Ti 3 C 2 T X /TiO 2 /ZnO ternary nanoarchitecture was successfully prepared via sequential etching-intercalation and pyrolysis methods, for which the ZIF-8 nanoparticles were initially incorporated into the adjacent interlayers of laminated Ti 3 C 2 T X MXene derived from HF-etching of Ti 3 AlC 2 MAX phase. The resultant multilayered Ti 3 C 2 T X /ZIF-8 nanocomposite was pyrolyzed at 400 o C to form Ti 3 C 2 T X /TiO 2 /ZnO ternary heterostructure , showing high triethylamine (TEA) sensing performance with R a /R g = 98 at 270 o C under 620 nm red-light irradiation, which is 3.1 times higher than that of the value measured under darkness. A rapid response/recovery time of 17 s/86 s is achieved, and it shows excellent TEA sensing selectivity and long-term cyclic stability. The close-stacked nano-/microstructure of Ti 3 C 2 T X /TiO 2 /ZnO effectively contribute to the diffusion and permeation of gas molecules, as well as the photogeneration and migration of charge carriers, leading to its outstanding photoactivated TEA sensing performance. This work provides a feasible approach to exploring high-performance Mxene hybrids for ultrasensitive TEA monitoring.
研究领域:
材料科学
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纳米技术
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化学传感器
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光化学
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DOI
高影响因子
ACS Sensors
·
2019
·
IF 6.944
Hanhan Xie,Penghui Li,Jundong Shao,Hao Huang,Yue Chen,Zhenyou Jiang,Paul K. Chu,Xue-Feng Yu
A reliable surface-enhanced Raman scattering (SERS) substrate composed of two-dimensional (2D) MXene (Ti3C2Tx) nanosheets and gold nanorods (AuNRs) is designed and fabricated for sensitive detection of organic pollutants. The AuNRs are uniformly distributed on the surface of the 2D MXene nanosheets because of the strong electrostatic interactions, forming abundant SERS hot spots. The MXene/AuNR SERS substrate exhibits high sensitivity and excellent reproducibility in the determination of common organic dyes such as rhodamine 6G, crystal violet, and malachite green. The detection limits are 1 × 10–12, 1 × 10–12, and 1 × 10–10 M, and relative standard deviations determined from 13 areas on each sample are 18.1, 10.1, and 15.6%, respectively. In the determination of more complex organic pesticides and pollutants, the substrate also shows excellent sensitivity and quantitative detection, and the detection limits for thiram and diquat of 1 × 10–10 and 1 × 10–8 M, respectively, are much lower than the contaminant levels stipulated by the US Environmental Protection Agency. The MXene/AuNR composite constitutes an efficient SERS platform for reliable and high-sensitivity environmental analysis and food safety monitoring.
研究领域:
材料科学
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环境科学
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分析化学
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DOI
PubMed
高影响因子
Analytical Methods
·
2024
·Vol. 16
·期 24
·3867-3877
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IF 2.7
Xin Yao,Liyu Yang,Siyi Yang,Jinhui Shen,Danqun Huo,Huanbao Fa,Changjun Hou,Mei Yang
A Ti3C2Tx/MoS2/MWCNT@rGONR nanocomposite was prepared for the first time for building a sensitive electrochemical aptasening platform to simultaneously detect kanamycin (Kana) and chloramphenicol (Cap). Owing to their accordion-like structure, rich surface groups, and high charge mobility, Ti3C2Tx/MoS2/MWCNT@rGONR composites provided a spacious covalent immobilization surface and a better electrochemical aptasensing platform. The aptamers of Kana and Cap used in sensors enhance the selectivity. Furthermore, TiP, an ion exchanger, was used for loading more different metal ions functioning as labels to form a sandwich-type sensor together with Ti3C2Tx/MoS2/MWCNT@rGONR, improving the electrochemical sensitivity and obtaining a highly distinguishable signal readout. Under the optimized conditions, the sensor has good detection limits of 0.135 nmol L−1 and 0.173 nmol L−1 for Kana and Cap, respectively, at the same linearity concentration of 0.5–2500 nmol L−1. Finally, it was successfully applied for detection in milk and fish meat, and the results were compared with the standard method HPLC, indicating its great potential for food safety monitoring.
研究领域:
分析化学
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食品安全
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生物传感技术
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DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Ziheng Ye,Feihua Liu,Xiaoai Ye,Kaizheng Gao,Jingjing Luo,Xiangli Liu,Weiwei Zhao
Ti 3 C 2 T x MXene with outstanding physicochemical properties have shown huge potential in electromagnetic interference (EMI) shielding applications. However, the poor chemical stability and mechanical fragility have seriously hindered their practical use. Herein, we developed a novel pyrimidine-containing polyimide (PPI) and constructed Ti 3 C 2 T x /PPI (MP) composite films . The incorporation of PPI not only suppresses the oxidation of Ti 3 C 2 T x by forming Ti-N x interactions between the nitrogen-rich pyrimidine rings of PPI and the Ti centers of Ti 3 C 2 T x , but also enhances mechanical strength and durability of the composite film across a wide temperature range (-196–250 ℃). Compared with Ti 3 C 2 T x film, the MP film exhibits significantly improved oxidation resistance , which the EMI SE of MP film did not decrease after 14 days in 80 ℃/80 RH environment when the weight ratio of Ti 3 C 2 T x and PPI reaches 11:4. Merely 1.4 dB decrease in EMI SE of the MP film was revealed after 200,000 bending cycles with a radius of 2 mm, and the EMI SE remained virtually unchanged after bending in liquid N 2 . Moreover, the composite film demonstrates excellent thermal management properties, including rapid thermal response, efficient electrothermal conversion, excellent durability and stability. The combination of desirable EMI shielding ability, ultrahigh flexibility, superior stability and durability, as well as ideal thermal management performance gives this material excellent potential for various applications.
研究领域:
材料科学
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高分子化学
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纳米复合材料
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电磁学
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热物理学
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DOI
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 38
·21771-21778
·
IF 12.732
Lan-Xin Li,Wu-Ji Sun,Hao-Yu Zhang,Jia-Liang Wei,Shu-Xian Wang,Jing-Hui He,Na-Jun Li,Qing-Feng Xu,Dong-Yun Chen,Hua Li,Jian-Mei Lu
The efficient electroreduction reaction of nitrate (NO3−RR) at low concentrations to ammonia is energetically favorable for ammonia production and environmentally essential to treat water contamination. Copper-based conjugated molecule electrocatalysts for the NO3−RR are advantageous in terms of their customizable Cu-coordinative micro-environment and facile preparation; however, they easily agglomerate due to their large π-conjugating system, which severely lowers the active site density and increases the internal resistance. This study demonstrates that Ti3C2Tx MXenes are promising supports to disperse and anchor a molecular catalyst (copper phthalocyanine, CuPc) to construct a CuPc@MXene electrocatalyst in order to significantly promote NO3−RR performance. 10% CuPc@MXene achieved higher ammonia selectivity (94.0%) and higher nitrate conversion (90.5%) compared to those of unsupported CuPc, and retained high ammonia selectivity (∼80%) after seven recycling tests. The combination of online differential electrochemical mass spectroscopy (DEMS) and density functional theory (DFT) calculations has showed that CuPc molecules are able to inhibit the hydrogen evolution reaction and effectively convert nitrate into ammonia through the ONH reaction pathway. The results showed that the MXene support is applicable to many metal phthalocyanines (MPcs, M = Fe, Co, Ni), demonstrating its potential in other electrochemical catalysis applications.
研究领域:
电化学
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环境科学
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材料科学
·
催化
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Kanru Fu,Zhengri Cong,Xinghao Wang,Haocheng Sun,Yong Zhang
Natural balsawood with quick-growing, light-weight and porous structure expects to be a carrier of self-supporting electrode for convenient pesticide residue analysis in food. In this work, the hydrangea-like Ni Ti layered double hydroxide (NiTi-LDH) is in-situ synthesized on the balsawood@few-layer Ti 3 C 2 T x nanosheets. The pyrolysis of such precursor leads to the carbonized balsawood@Ti 3 C 2 T x supported pompon-like Ni nanoparticles@N-doped carbon (CW@Ti 3 C 2 T x -NiNPs@NC), which demonstrates the two main structural advantages including the CW@Ti 3 C 2 T x with porous structure as the high-performance substrate and the NC immobilized the high-density distribution of NiNPs as the efficient electrocatalyst. These extraordinary characteristics of CW@Ti 3 C 2 T x -NiNPs@NC contribute to the outstanding electrochemical behaviors for detecting the low-concentration carbendazim (CBZ) pesticide, resulting in 0.36 nM of detection limit and the two-stage linear detection ranges including 1–250 nM and 0.25–20.00 μM. More importantly, such CW@Ti 3 C 2 T x -NiNPs@NC with free-cutting can be directly utilized as the quickly replaceable working electrode to create a prototype of portable sensor with the self-designed electronic system. Furthermore, a rapid sampling process matched such portable electrochemical sensor is proposed for the quick detection of residual CBZ on the surfaces of vegetables and fruits. Our research proposes a method to construct the high-performance self-supporting electrode on the basis of natural balsawood@Ti 3 C 2 T x nanosheets for electrochemical sensing.
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高影响因子
Nanomaterials
·
2020
·Vol. 10
·期 9
·1666
·
IF 4.324
Hui Liu,Ling Li,Guangzhen Cui,Xinxin Wang,Zhi Zhang,Xuliang Lv
As a typical two-dimensional material, MXene possesses excellent conductivity and tunable interlayer space, which makes it have an impressive development potential in the field of electromagnetic (EM) waves absorbing materials. In this work, we fabricated a sandwich structure CoS@Ti3C2Txcomposite using a simple solvothermal process. The CoS nanoparticles are anchored on the Ti3C2TxMXene sheets, forming a heterolayered structure. The results demonstrate that the CoS@Ti3C2Txcomposites with the sandwich-like architecture showed excellent EM absorbing performance due to the synergistic effects of the conductivity loss, interface polarization, and dipole polarization. When the doping ratio was 40 wt %, the maximum reflection loss value of CoS@Ti3C2Txwas up to –59.2 dB at 14.6 GHz, and the corresponding effective absorption bandwidth (below –10 dB) reached 5.0 GHz when the thickness was only 2.0 mm. This work endows a new candidate for the design of MXene-based absorption materials with optimal performance.Keywords:MXene Ti3C2Tx;CoS nanoparticle;dielectric loss;microwave absorption
研究领域:
材料科学
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电磁材料
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纳米技术
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Guoqiang Zhou,Chaozheng Liu,Weimin Chen,Daotong Zhang,Hang Xiao,Tongtong Ma,Meichun Li,Changtong Mei
The rapid proliferation of portable smart electronics has significantly expanded the demand for flexible energy storage devices. Flexible supercapacitor (FSC), characterized by long lifetime, high power density, and portability, is an ideal power source for smart electronics. However, key challenges remain in developing robust, sustainable, and cost-effective electrode substrates and achieving rapid fabrication of FSCs with tailored electrode patterns. Herein, a mechanically strong wood-derived film is applied as the flexible substrate for stamping of Ti 3 C 2 T x inks to readily construct a high-performance in-plane FSC. The wood-derived film with a dense layered structure, high crystallinity, and fiber-oriented characteristics is prepared from natural vertical-section wood via cell wall softening engineering in combination with densification treatment, which exhibits excellent mechanical performance, flexibility, and foldability. By direct stamping Ti 3 C 2 T x inks on wood-derived film surface followed by drying, a flexible interdigitated electrode with stable electrical conductivity is achieved, enabling the rapid manufacturing of in-plane FSC. The developed FSC delivers favorable areal capacitance of 57.8 mF·cm −2 at 0.2 mA·cm −2 , and high energy density of 2.89 μWh·cm −2 at 60 μW·cm −2 . Furthermore, the FSC maintains stable capacitive behavior in the flexural state or after cyclic bending. Collectively, the integration of wood-derived film with Ti 3 C 2 T x inks for producing FSC via a stamping approach offers a sustainable strategy for the rapid manufacture of portable energy storage devices.
研究领域:
储能
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材料科学
·
柔性电子学
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纳米材料
·
可持续制造
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产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 17
·6086-6097
·
IF 5.7
Yuanhao Ning,Shuang Yang,Xianxian Sun,Shasha Wang,Lei Liang,Yuanjing Cheng,Ye Yuan,Yibin Li
Transition metal carbides and nitrides (MXenes) with excellent properties have broad prospects in electromagnetic wave absorption (EMA). In this paper, a unidirectional freeze-casting method was utilized to design a double-layer MXene absorber with orthogonal microstructures. The perpendicular and parallel samples (associated with the unidirectional freeze-casting direction), perform their respective roles in the designed double-layer absorber. The perpendicular sample with various attenuation techniques is employed as an electromagnetic wave attenuation layer, while the parallel sample with good impedance matching conditions is utilized as an impedance matching layer. Consequently, the entire absorber exhibits favorable EMA characteristics. Upon incidence of electromagnetic waves onto the parallel terminus, it is observed that the sample measuring 4.6 mm in thickness exhibits a minimal reflection loss (RLmin) of −60.8 dB at a frequency of 6.63 GHz, with a parallel end thickness accounting for 25%. In addition, the sample with a thickness of 2.6 mm displays a noteworthy maximal effective absorption bandwidth (EAB) amounting to 9.4 GHz, given a parallel end thickness of 20%. A thorough analysis of the impedance matching conditions and electromagnetic wave attenuation mechanisms of each sample reveals that the double-layer MXene absorbers with orthogonal microstructures can significantly increase the viability of MXenes in EMA.
研究领域:
材料科学
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电磁工程
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纳米技术
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Ting Yao,Xianxiang Zeng,Tao Luo,Xueying Tao,Hengyi Xu
Microbial contamination poses a serious threat to human health and socioeconomics, and is a major problem for global public health. Herein, we fabricated Ti 3 C 2 T x /ZnONPs composite by using Lactobacillus plantarum fermentation broth to reduce ZnONPs in situ on few-layer Ti 3 C 2 T x MXene after etching and delamination treatment. Antibacterial experiments showed that the Ti 3 C 2 T x /ZnONPs composite exhibited significant antibacterial and antibiofilm activity against both Gram-negative E. coli and Gram-positive S. aureus . Moreover, the exploration of the antibacterial mechanisms demonstrated that Ti 3 C 2 T x /ZnONPs could inhibit and kill bacteria by disrupting bacterial cell wall/membrane, causing leakage of intracellular contents, interfering with metabolism and inducing oxidative stress. The synergistic effect of multiple antibacterial mechanisms can effectively prevent the evolution of resistance. Overall, as a novel inorganic antibacterial material, Ti 3 C 2 T x /ZnONPs composite holds a promising application in the antimicrobial field.
研究领域:
材料科学
·
纳米技术
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微生物学
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生物医学工程
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产品关联
DOI
高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2025
·
IF 7.8
Donghai Wu,Chenchen Yi,Guanghua Lu,Chao Zhou,Jun Hou
Pharmaceuticals and personal care products (PPCPs) pose potential risks to aquatic ecosystems and human health. This work developed an ozonation-assisted electrochemical filtration (OAEF) system using a Ti 3 C 2 T x /CNTs composite membrane electrode and systematically investigated its efficiency, mechanisms, and practicality for PPCPs removal. The results suggest that the excellent adsorption and hydrophilic properties of Ti 3 C 2 T x , combined with its formation of an optimized membrane structure when mixed with CNTs, significantly enhanced the pollutant adsorption capacity and water permeation flux of fabricated electrode. Ozone incorporation in the electrochemical filtration process facilitated pollutant abatement, achieving approximately 99 % degradation and 42 % mineralization of fluoxetine (FLX), a representative PPCP. Moreover, the OAEF system demonstrated broad pH suitability and good stability, effectively detoxifying FLX-contaminated wastewater. The analysis of oxidants and electrode component evolution in the OAEF system, combined with density functional theory (DFT) calculations, revealed that enhanced mass transfer and electron transport promoted electro-peroxone initiation and reactive oxygen species (ROS) generation, thereby improving pollutant elimination and regenerating the adsorption capacity of electrode. Further analysis of 34 PPCPs treatment using quantitative structure-activity relationship (QSAR) models indicated that adsorption on the Ti 3 C 2 T x /CNTs was primarily influenced by pollutant solubility, C O bond content, dipole moment, and molecular weight, while degradation was significantly impacted by aromatic ring content, highest occupied molecular orbital (HOMO) energy, lowest unoccupied molecular orbital (LUMO) energy, and solubility. Additionally, the Ti 3 C 2 T x /CNTs membrane electrode exhibited satisfied fouling mitigation during the treatment of real surface water, suggesting that the OAEF process is feasible for practical applications.
研究领域:
环境科学
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水处理技术
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材料科学
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DOI
高影响因子
危险品化学品经营许可证（带存储）