CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xiaoyan He,Yanling Liang,Jing Li,Yuanyuan Lu,Xin Tian,Zhiqiang Wang,Runze Cao,Penggai Ma,Shuo Ma,Xiaoquan Lu
Solar interfacial evaporation technology, as an emerging sustainable water purification strategy, provides both an economical and environmentally friendly way to solve water resource problems. However, it still faces certain limitations and challenges in treating polluted wastewater containing volatile organic compounds (VOCs). In this paper, MXene-TiO 2 -Ag composites were embedded into a polyvinyl alcohol (PVA) hydrogel system using kapok fibres as biomass templates, and a bifunctional and environmentally friendly solar evaporation system (MTAH) was successfully constructed for both efficient solar freshwater production and phenol removal (typical VOC). The MTAH evaporator demonstrated excellent evaporation performance with an evaporation rate as high as 3.09 kg m −2 h −1 and a photothermal conversion efficiency as high as 93.16 % under 1 solar light intensity. The self-growth property of TiO 2 on the MXene surface endowed the evaporator with the ability of photocatalytic degradation of pollutants. In addition, the incorporation of trace Ag nanoparticles played positive roles, which not only significantly enhanced the photothermal conversion performance of MXene, but also broadened the light response range of TiO 2 and effectively suppressed the complexation of photogenerated electron-hole pairs. The MTAH evaporator shows an excellent removal rate of 91.84 % for high VOC concentrations (100 ppm phenol), effectively avoiding secondary contamination of the condensate. The finding paved the course for the sustainable and eco-friendly solution for freshwater scarcity.
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高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Shiyuan Gao,Huibin Yin,Yongjun Xu,Jianfeng Lu
MXene aerogel based composite phase change materials exhibit great promise for solar thermal utilization, yet their mechanical strength and heat transfer property need to be further boosted. In this work, MXene/cellulose nanofibers (CNF)/poly(ethylene glycol) (PEG) composite phase change material (MCP) with robust and high thermal properties is successfully developed. MXene/CNF (MC) aerogels are constructed through CNF-assisted three-dimensional assembly of MXene nanosheets and incorporation of Al 3+ crosslinking, which afforded mechanical strength enhancement induced by metal ion coordination and hydrogen bonding interactions. With MC aerogel as the support framework, MCP has phase change enthalpy of no less than 167.1 J·g −1 , and the phase change enthalpy only decreases by 2.89 % after 500 cycles, showing high enthalpy and excellent thermal cycle stability. The electric field distribution of MXene during the photothermal conversion process is demonstrated by finite-difference time-domain (FDTD) simulation, which visually reveals the localized surface plasmon resonance effect of MXene. The highly vertically oriented 3D MXene framework effectively strengthens the directional heat transfer of the MCP, leading to the rapid completion of photothermal conversion and heat transfer processes, and thus realizing a photothermal conversion efficiency of more than 90 %. The MCP developed in this study is a valuable material for solar thermal energy storage in practical applications.
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DIAMOND AND RELATED MATERIALS
·
2025
·
IF 5.1
Jianhua Zhou,Shuang Ao,Kai Lu,Anguo Xiao
The multifunctional electromagnetic interference (EMI) shielding materials have become more and more indispensable due to serious electromagnetic radiation pollution and harsh wild environments. Herein, hydrophobic MXene/CNTs/oxidized sodium alginate/collagen (MCAC) composite aerogel with excellent EMI shielding, Joule heating and thermal insulation performance was prepared via unidirectional freeze-drying and dip-coating with PDMS. The 1D 2D conductive network between MXene and CNTs endowed hydrophobic MCAC composite aerogel with high electrical conductivity (178.45 S/m), excellent EMI shielding effectiveness (61.47 dB at a thickness of 2 mm) and low-voltage-driven Joule heating (up to 90 °C at 6 V). Furthermore, hydrophobic MCAC composite aerogel also exhibited superhydrophobicity (contact angle of 157.2°) and extraordinary thermal insulation performance. This work provides a forward-looking idea for building multifunctional EMI shielding materials with superior EMI SE, which have potential applications in aerospace, portable electronic devices, and defense industries.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Wei Zhou,Tianqin Huang,Ying Zhao,Di Kang,Chuhan Huang,Meng Ding
Mn-Fe Prussian blue analogues (PBAs) are a Faradaic material with high theoretical capacity due to their unique frame structure and adequate ion diffusion channels, demonstrating excellent salt adsorption performance as electrode materials in hybrid capacitive deionization (HCDI). However, Mn-Fe PBAs generally suffer from poor cycling reversibility and capacity retention during the phase transition from octahedral to tetragonal phases caused by Jahn-Teller distortion. Moreover, the electrical conductivity of PBAs is relatively inferior resulting in insufficient energy efficiency for practical desalination applications. In this study, a ternary-metal PBA hollow sphere is proposed to be integrated in the layered Ti 3 C 2 T x MXene structure by an electrostatic interaction as the Faradaic electrodes of HCDI. The hollow sphere structure of PBA and the incorporation of Co in the ternary-metal PBA facilitate ion diffusion and mitigate structural distortion during charging/discharging processes. Furthermore, the ternary-metal PBA hollow spheres serve as the spacer to alleviate the self-stacking of MXene while benefiting from the enhanced electrical conductivity provided by MXene. Through the synergy between PBAs and MXene, the PBA/MXene composite exhibits fast ion transport, high salt adsorption capacity (185.25 mg g −1 at 20 mA g −1 ), and cycling stability (capacity retention of 100 % over 80 cycles). This new composite material offers a new strategy for the composite direction of functional PBA and MXene, harnessing the strengths of both materials to advance the development of HCDI technology.
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ADVANCED COMPOSITE MATERIALS
·
2024
·
IF 1.8
Shuai Qi,Sai Gong,Chang Liu,Shenzhen Li,Bo Li,Shiwei Xie,Xiao Zhang
Intrinsic self-healing waterborne polyurethane (WPU) is an environmentally friendly, economically viable, and practical novel intelligent material. However, the key to achieving practical applications lies in the remote activation of repair in self-healing materials and the excellent mechanical properties of the matrix. In this study, we introduce quadruple hydrogen bonding in the polyurethane backbone. We have incorporated a novel two-dimensional sheet-like material, MXene, to achieve visible light remote-driven self-healing of material hydrogen bonds while enhancing the material’s mechanical properties. By utilizing the MXene supernatant, this approach not only resolves the issues of poor stability and easy sedimentation of MXene nanosheets in water-based polymers but also helps to prevent resource wastage. Our research results demonstrate that the composite film exhibits a tensile strength of 6.55 MPa and a fracture elongation of 604%. Additionally, quadruple hydrogen bonds in the WPU chains enable rapid self-healing of microcracks under visible light irradiation at 300 mW/cm2, with complete disappearance within 80 min.
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ACS Applied Polymer Materials
·
2024
·
IF 4.4
Xuanlin Qiu,Chuanpeng Li,Yuchen Sun,Yu Liu,Xingwei Wang,Shuang Sun,Qiangliang Yu,Bo Yu,Meirong Cai,Feng Zhou
Further exploration of MXene’s potential in self-healing materials is promising, given its exceptional surface properties and adaptability to various modifications. In this study, the surface of MXene was functionalized with 2,5-diaminobenzenesulfonic acid (2,5-DBSFA) and 1-{3-[(N-n-butyl) aminoformamido] propyl}-3-cetyl imidazolium bromide (M16) successively, resulting in the successful preparation of functionalized MXene (f-MXene). It was added as an anticorrosion and wear-resistant filler to the self-healing epoxy resin coating with dynamic disulfide bonds, and the corrosion and friction behaviors of the coating were explored. Under heating at 170 °C for 10 min, the self-healing performance of the EP coating was significantly improved, with |Z|0.01Hz increasing from 6.77 × 106 to 1.54 × 108 Ω·cm2. This significant increase indicates that functionalized MXene can act as an effective repair agent in the EP matrix, working together with dynamic disulfide bonds to promote self-healing of microcracks or damage. Moreover, the tribological test results indicate that the addition of f-MXene not only enhances the self-healing ability but also improves the coating’s tribological properties. The introduction of f-MXene into the EP coating results in improved resistance to wear and friction, in which the average coefficient of friction decreased from 0.53 to 0.33 and wear rate has decreased 53.3%. This is attributed to the excellent mechanical and chemical properties of MXene, which can improve the stress distribution of the coating and form a self-lubricating film during friction.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Ziyi Li,Jia Xiong,Hang Song,Shuchang Liu,Yufei Huang,Yangqiang Huang,Geoffrey I. N. Waterhouse,Ziyun Wang,Yu Mao,Zhiwu Liang,Xiao Luo
To enhance the photocatalytic efficiency of ZIF-67 (Zeolitic Imidazolate Framework-67), we integrated it with Ti 3 C 2 T x MXene through in-situ synthesis and assessed the effects of different MXene concentrations on photocatalytic activity. We identified ZIF-67/Ti 3 C 2 T x MXene as the optimal catalyst (denoted as ZT-450), yielding CO, CH 4 , and H 2 at 62.7, 6.7, and 7.3 μmol g −1 , respectively. The CO productive rate achieved by ZT-450 exhibits a substantial enhancement, outperforming both ZIF-67 and Ti 3 C 2 T x by factors of 16.1 and 4.8, respectively. After introducing Ti 3 C 2 T x in ZIF-67, CO 2 adsorption ability achieves 127.90 μmol g −1 , much higher than those of pure ZIF-67 and Ti 3 C 2 T x . Combining Density Functional Theory (DFT) calculations, we established that introducing Ti 3 C 2 T x in ZIF-67 facilitates rapid electron transfer and improves light absorption, CO 2 activation. In-situ DRIFTS measurements of photocatalytic CO 2 reduction reaction (CO 2 RR) on ZIF-67/Ti 3 C 2 T x MXene composite were employed to reveal the emergence of intermediates such as *COOH, *CHO, *OCH 3 , etc ., and elucidate the mechanism accordingly. This research contributes to the advancement of photocatalytic CO 2 RR, offering insights into applying Ti 3 C 2 Tx MXene in photocatalysis.
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LANGMUIR
·
2025
·
IF 3.9
Lin Wang,Wei Liu,Xianrui Chen,Zhenzhen Wu,Xiuqing Guan,Yanping Lai,Zipei Zhang,Jingcheng Hao
The shelf life of delicate fruits, such as raspberries, is a significant challenge in food packaging. Although natural polysaccharide-based films are safe and biodegradable, their poor mechanical strength, high water sensitivity, and weak barrier properties often limit their use. This study incorporated konjac glucomannan (KGM) and gallic acid-modified MXene (MXene@GA) and carefully designed natural deep eutectic solvents (NADES) to develop a novel biobased nanocomposite film. The NADES systems were composed of glycine-citrate-caffeic acid, l-carnitine-citrate-caffeic acid, and amidosulfonic acid-citrate-caffeic acid. Moreover, they act as green plasticizers and help tailor the internal structures and surface properties of the films. The resulting films exhibited enhanced strength, ultraviolet protection, water resistance, and antioxidant activity. The incorporation of MXene@GA and NADES promoted better dispersion and interaction with the polymer matrix, further enhancing the mechanical and barrier properties. The final nanocomposite films were applied for raspberry preservation, which effectively extended the shelf life of the fruits at room temperature and under 4 °C storage conditions while maintaining fruit quality. This study provides a practical and innovative solution for developing safe and multifunctional food packaging materials for perishable products.
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PubMed
高影响因子
Nano-Micro Letters
·
2022
·Vol. 14
·期 1
·1-16
·
IF 23.655
Cheng Haoran,Pan Yamin,Wang Xin,Liu Chuntai,Shen Changyu,Schubert Dirk W.,Guo Zhanhu,Liu Xianhu
Ni-MXene/MF foam is synthesized via an electrostatic assembly and dip-coating process.
The “micro-capacitor” structure of Ni/MXene and the 3D porous structure of MF endow the foam excellent impedance matching and wave absorption performance.
The excellent heat insulation, infrared stealth, and flame-retardant performances are achieved.
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Advanced Composites and Hybrid Materials
·
2024
·Vol. 7
·期 2
·1-16
·
IF 23.2
Zhao Yao,Miao Baoji,Nawaz Muhammad Asif,Zhu Qingsong,Chen Qiuling,Reina Tomas Ramirez,Bai Jinbo,He Delong,Al-Tahan Mohammed A.,Arsalan Muhammad
With the widespread application of communication equipment with electromagnetic signal transmission to cause electromagnetic radiation pollution, there is an urgent need for high-performance electromagnetic shielding materials. Here, an ultrathin, flexible, alternating multilayered, and conductive gradient-structured cellulose nanofiber–MXene/silver nanowire (CNF-MXene/AgNW) nanocomposite paper with high mechanical strength, strong electromagnetic interference (EMI) shielding, and outstanding thermal management was constructed via the alternating vacuum filtration (AVF) process. The extensive hydrogen bonding interactions between MXene, CNF, and AgNW enhance the interfacial adhesion and conductive synergy between layers, resulting in excellent tensile strength of 194.3 MPa and fracture strain of 7.62% of nanocomposite paper. The alternating conductive gradient structure of the nanocomposite paper greatly increases the interlayer multiple reflections and absorption of electromagnetic waves, resulting in a high conductivity of 3237.35 S cm −1 and excellent electromagnetic shielding efficiency of 65.4 dB for the nanocomposite paper. Under an external low voltage of 3 V, the surface temperature of the nanocomposite paper reaches 107.2 ℃ within 10 s and can be stable for a long time. These results indicate that CNF-MXene/AgNW nanocomposite paper with a conductive gradient structure has potential applications in the fields of aerospace, communication engineering, and wearable devices.
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高影响因子
ADVANCED MATERIALS
·
2021
·Vol. 33
·期 10
·2005449
·
IF 30.849
Shuanghao Zheng,Hui Wang,Pratteek Das,Ying Zhang,Yuexian Cao,Jiaxin Ma,Shengzhong (Frank) Liu,Zhong-Shuai Wu
The future of mankind holds great promise for things like the Internet of Things, personal health monitoring systems, and smart cities. To achieve this ambitious goal, it is imperative for electronics to be wearable, environmentally sustainable, and safe. However, large-scale manufacture of self-sufficient electronic systems by exploiting multifunctional materials still faces significant hurdles. Herein, multitasking aqueous printable MXene inks are reported as an additive-free high-capacitance electrode, sensitive pressure-sensing material, highly conducting current collector, metal-free interconnector, and conductive binder. By directly screen printing MXene inks, MXene-based micro-supercapacitors (MSCs) and lithium-ion microbatteries (LIMBs) are delicately fabricated on various substrates. The as-prepared MSCs exhibit ultrahigh areal capacitance of 1.1 F cm −2 and the serially connected MSCs offer a record voltage of 60 V. The quasi-solid-state LIMBs deliver a robust areal energy density of 154 μWh cm −2 . Furthermore, an all-flexible self-powered integrated system on a single substrate based on the multitasking MXene inks is demonstrated through seamless integration of a tandem solar cell, the LIMB, and an MXene hydrogel pressure sensor. Notably, this integrated system is exceptionally sensitive to body movements with a fast response time of 35 ms. Therefore, this multipurpose MXene ink opens a new avenue for powering future smart appliances.
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Nano Materials Science
·
2025
·
IF 17.9
Diwen Jiang,Guoliang Liu,Haowen Zhang,Zhesheng Feng,Fanbin Meng,Yan Wang
Despite the potential of MXene-based textiles for wearable devices, their oxidative instability and weak interfacial adhesion hinder practical applications. In this study, a nickel-ion-assisted MXene@caffeic acid (MXene@CA, MC) composite dispersion was deposited onto carboxyl-aminated cotton fabric (CPCF) via dip-coating to fabricate a multifunctional composite textile (CPCF-Ni-MC). The presence of CA limits the oxidative degradation of MXene, ensuring the surface chemical activity of the MXene nanosheets. The nickel ions enhance the stability and quantity of the deposited dispersion on the fabric through covalent bonds and electrostatic interactions. The CPCF-Ni-MC composite fabric not only retains the original fabric’s excellent breathability, moisture permeability, washability, and flexibility but also exhibits superior electrical conductivity (289.18 S cm −1 ) and electromagnetic interference shielding effectiveness (66.8 dB). Furthermore, its rapid joule heating (reaching 112.1 °C within 49 s at 3.5 V) and ultralow infrared emissivity (0.21) enable adaptive thermal management. Additionally, the textile demonstrates exceptional environmental resistance with hydrophobic, flame-retardant properties, and UV-blocking capability (transmission rates <0.01 in the UVA and UVB regions). By achieving these diverse functionalities within a single textile through a low-cost and scalable manufacturing approach, CPCF-Ni-MC presents novel perspectives and strategies for the preparation of stable integrated multifunctional wearable devices.
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