Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Xinyan Li,Teng Wang,Guilan Zhang,Xin Wen,Xinchuan Ma,Gang Xie,Lan Ma,Liyun Zhang
Developing an anti-fouling and multifunctional membrane with efficient separation performance is great potential for alleviating water crisis. Here, combining the heterogeneous β-FeOOH/Ag catalyst layer, intercepted GO nanosheets layer, and porous polyvinylidene fluoride (PVDF) substrate, a multi-layer composite membrane (β-FeOOH@GO/AgNWs) was designed and fabricated by the polyphenol (TA)-metal (Fe 3 + ) crosslinking and inductive effect. Hence, the β-FeOOH@GO/AgNWs membrane possesses robust physical and chemical stability, superhydrophilicity (water contact angle ∼0°) and underwater superoleophobicity (underwater oil contact angle >150°). Due to the construction of heterojunctions of β-FeOOH/Ag, the β-FeOOH@GO/AgNWs membrane achieved the degradation of various dyes under the photo-Fenton system, the degradation rate constant is 0.0986 min −1 . Meanwhile, the synergistic effect of multi-layer structure can efficiently intercept the various soluble dyes by electrostatic effect, π-π action and layered channels, the reject rate recached above 97.89 % under the acidic and neutral environment. Faced the membrane fouling phenomenon during the separation process, the flux and rejection of fouled membrane recovered to above 95.1 % and 97.9 % after photo-Fenton cleaning for 10 min. Moreover, the β-FeOOH@GO/AgNWs membrane also realized efficient separation performance for various oil-in-water emulsions, the flux reached 329.2 ± 25–486.1 ± 15 L m −2 h −1 bar −1 , the corresponding separation efficient was above 99 %. Similarly, the photo-Fenton cleaning strategy also regenerated the fouled composite membrane, the flux recovery rate was above 95 %. Therefore, we think that β-FeOOH@GO/AgNWs membrane can bring a new thinking of developing the multifunctional membrane to achieve complex wastewater remediation.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Engineering Research Express
·
2023
·Vol. 5
·期 1
·015080
·
IF 1.7
Kunpeng Gao,Qianjin Wang,Junqi Tang,Yingkai Liu
Resistive-type strain sensors have been widely studied because of their high precision and convenient measurement. But the high sensitivity and large strain range of this kind of sensor conflict with each other. It is difficult to prepare a sensor with high sensitivity and a large tensile range at the same time. Here, we propose a method to use AgNWs/Ag microparticles (AgMPs) and PDMS to simultaneously manufacture two strain sensors with different principles, a crack-based sensor and a composite-based sensor. On the one hand, the crack-based sensor has a low detection limit of 0.5% strain and high sensitivity of GF ≈ 90 at the strain of 0 ∼ 50%. It is suitable for the detection of small strains and can detect throat vibration when speaking. On the other hand, the composite-based sensor has a large strain range of 0 ∼ 240% and excellent stability. After 1000 cycles of stretching-releasing at 50% strain, the resistance change rate remains unchanged. It is suitable for the detection of large strains. Moreover, the sensitivity and working range of the composite-based sensor can be adjusted by changing the ratio and total amount of AgNWs/AgMPs composites. It can accurately monitor the different bending angles of the elbow joint and a people's walking status and pace. The strain sensor prepared by this method has great practical value in wearable devices and electronic skin.
研究领域:
材料科学
·
生物医学工程
·
柔性电子
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Yubin Li,Guoliang Dai,Jie Fan,Hong Xiao
Visible light transparent and low infrared emission materials have great prospects in infrared camouflage, building energy efficiency, passive radiation heating and many other fields, yet their manufacture remains a formidable challenge. inspired by the overlap of branches and fallen leaves in winter, we applied bionic principles to build a conductive network combining AgNWs and MXene on a transparent PET substrate, and developed an optically transparent, infrared-low-emission flexible conductive film. The prepared MA 10/133 film has a visible light transmittance of not less than 71 %, a sheet resistance of 12.03Ω·sq −1 , and average emissivities of 0.37 and 0.18 in two infrared atmospheric windows of 3–5 μm and 8–14 μm, and demonstrates excellent visible transparency and infrared camouflage performance. In addition, in the field of personal thermal management, with superior passive radiant heating performance, MA 10/133 film covered simulated human skin is 4.5°C and 1.5°C higher than those covered by cotton and woolen fabrics. Stable and controllable Joule heating performance can be used as an effective complement to passive radiant heating performance, with a maximum saturation temperature of 74.7°C at a driving voltage of 5 V, which is sufficient to cope with colder outdoor environments. These properties make composite films promising candidates for military thermal camouflage, outdoor life jackets and smart, energy-efficient windows.
研究领域:
材料科学
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光电子学
·
红外技术
·
仿生学
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热管理
·
柔性电子学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Lan Ma,Teng Wang,Yan Wan,Guilan Zhang,Xinyan Li,Minghang Jiang,Liyun Zhang
Developing a novel type of high-performance catalytic separation membrane with multifunctional remediation towards efficiently complex wastewater has been an anticipated goal. Inspired by the natural soil filtration system, we successfully constructed a soil-root-like Fe(Ⅲ)-MOF/AgNWs heterostructured membrane (AgNWs/CMC@NMB) with photo-fenton degradation property through a facile self-assembly approach under vacuum. Herein, sodium carboxymethyl cellulose(CMC) and silver nanowires (AgNWs) acted as the root, which were boned with the soil-like of the nubbly NH 2 -MIL-88B(Fe) aggregation by electrostatic force and hydrogen bonding interaction to form a stable soil-like heterostructured membrane. The resultant AgNWs/CMC@NMB membrane revealed remarkable selective wettability (water contact angles (WCAs) ∼0°, underwater oil contact angles (UWOCAs) > 155°), and exhibited splendid removal efficiency (>99 %) for insoluble oils under separation flux of 1343 L m −2 h −1 bar −1 . Profiting from a soil-root-like porous filter structure, AgNWs/CMC@NMB membrane achieved concurrent treatment of the insoluble oils and soluble dyes by one-step efficient filtration, notably, the disposal efficiency for anionic and cationic dyes by soil-root-like structure reached above 96.7 %. Moreover, acting like roots in the soil to transport water and stabilize the soil, AgNWs facilitated electron transfer of the photo-Fenton system of Fe-MOF and enhanced the photocatalytic degradation capacity of composite membrane for the organic contaminant , which also endowed the photo-induced regeneration of fouled membrane. Overall, the construction of Fe(Ⅲ)-MOF/AgNWs composite membrane with a Soil-Root-like heterostructure emerged as a feasible route to achieve the complex sewage remediation.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Chen Chen,Fructueux Modeste Amona,Junhao Chen,Xiaohan Chen,Yongding Ke,Shuangcheng Tang,Jinming Xu,Xi Chen,Yipeng Pang
Wound healing is a complex biological process that can trigger inflammation and oxidative stress and impair myofibrillogenesis and angiogenesis. Several advanced wound-dressing nanocomposite materials have been designed to address these issues. Here, we designed a new multifunctional styrene–ethylene–butylene–styrene/silver nanowire (SEBS/AgNWs)-based nanocomposite film with antimicrobial, antioxidant, and anti-inflammatory properties to promote wound healing. The porous morphological structure of SEBS/AgNWs enhances their antimicrobial, antioxidant, and anti-inflammatory properties. SEBS/AgNWs significantly inhibited the growth of Staphylococcus aureus, methicillin-resistant Staphylococcus aureus, and Escherichia coli strains, effectively wiping out ABTS•+, DPPH•, hydrogen peroxide (H2O2), and hydroxyl (•OH) radicals, showing their effective ROS-scavenging properties. It further showed significant antioxidant properties by increasing the levels of enzyme-like catalase (CAT), superoxide dismutase (SOD), and glutathione (GSH), while decreasing malonaldehyde (MDA) levels. Additionally, SEBS/AgNWs reduced the expression of interleukin-1β (IL-1β), IL-6, and tumor necrosis factor-α (TNF-α), while increasing levels of transforming growth factor- β (TGF-β), vascular endothelial growth factor-A (VEGF), and CD31 in wound healing. This suggests that applying a multifunctional nanoplatform based on SEBS/AgNWs could enhance wound healing and improve patient outcomes in wound care management.
研究领域:
材料科学
·
生物医学工程
·
纳米技术
·
伤口护理
·
药学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Bai Jiang,Na Li,Yan Wang,Zuming Hu,Jing Zhu,Junrong Yu
In order to deal with the more complex electromagnetic radiation environment, there is highly desirable to manufacture a high-performance electromagnetic shielding material with excellent electromagnetic shielding efficiency, flexibility, thermal properties, fatigue resistance , and other qualities. In this paper, we fabricated an ultralight, flexible, and heat-resistant poly-m-phenylene isophthalamide (PMIA)/Ag nanowires(AgNWs)/Ni composite nanofiber film via electrospinning, spray coating, and electroless plating . Compared with different AgNWs spraying contents, the highest electromagnetic shielding effectiveness, about 96 dB with a thickness of ∼150 µm, is generated by spraying 33.333 mg/cm 2 AgNWs suspension. Additionally, because of the benefit of the PMIA, this PMIA/AgNW/Ni composite membrane maintains a constant EMI SE value (over 90 dB) after a high-temperature process under 200 °C, which only decreases by 3.33 %. The excellent performance of the material is due to its large porosity and sandwich structure, which can dissipate electromagnetic waves within the material, with only a very small portion of the electromagnetic waves passing through it. Therefore, this material has a potential application for use in diverse harsh settings.
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2024
·
IF 8.3
Chenglei He,Lingjun Zeng,Bai Xue,Xingxing Zhang,Liya Yu,Lan Xie,Qiang Zheng
Along with the increasingly serious electromagnetic interference (EMI) pollution, it is in urgent need of exploiting high-performance EMI shielding materials. However, the conventional experimental methods always require a series of tedious preparation and characterization processes, resulting in the long period and high cost. Herein, a fully connected neural network (FCNN) was applied to aid in exploiting silver nanowires/waterborne polyurethan/multi-walled carbon nanotubes (AgNWs/WPU/MWCNTs) EMI shielding aerogels with asymmetric structures to optimize new material evolution and reduce experiment burden. Firstly, the special AgNWs/WPU/MWCNTs aerogels were fabricated with various MWCNTs content (0 wt%, 2 wt%, and 4 wt%) and AgNWs mass (10 mg, 20 mg, 30 mg, and 40 mg) via a combination of directional freezing and spraying procedures, leading to 12 distinct samples. AgNWs/WPU/MWCNTs aerogels hold excellent EMI shielding properties and absorption-dominant shielding mechanism. The experimental EMI shielding effectiveness (SE) data at different frequency were leveraged to establish, train, and test the FCNN model based on Adam optimizer (Adam-FCNN). It is worth noting that Adam-FCNN model predictions are in good accordance with the EMI SE of the physically measured samples, with the lowest root mean square error RMSE of 0.7899, the highest correlation coefficient (R) of 0.9895, and excellent computational efficiency and reliability. Moreover, Adam-FCNN can accurately prognosticate EMI SE of unobtained AgNWs/WPU/MWCNTs aerogels in mechanics-intuitions to reduce repeated preparation and characterizing conditions. Thereby, Adam-FCNN soft model approach opens significant potential for alleviating the experimental burden, accelerating the discovery of innovative materials, and exploring the complex mechanism.
研究领域:
材料科学
·
人工智能辅助材料设计
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Jiayu Lu,Yihao Yu,Yan Zhang,Yanyan Wang,Zhangqi Han,Wei Wang,Dongming Qi
Coated electromagnetic interference (EMI) shielding textiles with conductive coatings could efficiently reflect and absorb electromagnetic waves (EMWs), and are widely used in various applications, including consumer electronics, medical technology, and the automotive industry. However, the accumulation of heat during operation may pose a fire risk, potentially damaging the coating and compromising its ability to provide effective electromagnetic protection under fire conditions. To address this issue, we designed a multi-layer nano coating incorporating flame retardants and conductive nanofillers, specifically AgNWs, MXene, and graphene. This coating could achieve sustainable EMI shielding capabilities under fire conditions. Especially, the A1-M1.5-G0.5 exhibited excellent flame retardancy, reducing the total heat release (THR) value from 3.9 ± 0.2 MJ·m −2 to 1.9 ± 0.1 MJ·m −2 , and the peak heat release rate (pHRR) value was 89 % lower than that of cotton fabric. Its initial EMI SE T reached 77.5 ± 2.4 dB, and even after 10 min of continuous flame exposure, the woven structure and conductive network remained intact, still providing 99.9 % shielding of EMWs. This flame-retardant coated EMI shielding fabric prevents the shielding performance failure of existing textiles due to combustion and maintains protection even in fire conditions, which carries significant practical value.
研究领域:
材料科学
·
纺织工程
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
VACUUM
·
2024
·
IF 3.8
Xianjie Tang,Guoyou Gan,Xianglei Yu,Zhuo Qian,Junpeng Li
Silver nanowire transparent electrodes (TCEs) are promising candidates for various applications. This is because of their excellent optoelectronic properties and thermal conductivity . However, the mechanical characteristics of silver nanowires (AgNWs) are not very prominent. In recent years, metal oxide surface modifications have been used to enhance the properties of AgNWs. Meanwhile, most of them have aimed at improving the macroscopic parameters, making little mention of theoretical guidance concerning the modification mechanism and bonding mode. To address this issue, composites of Ag 2 O nanoparticles grown on the surface of PVP@AgNWs were prepared in the present work through a straightforward liquid-phase synthesis approach, while guaranteeing the initial dispersion. The mechanism of the sodium borohydride (NaBH 4 ) modifier on the surface of PVP@AgNWs and the growth mode between Ag 2 O and the PVP@AgNWs surface were analyzed using XPS , TEM , and other characterization techniques. This supports the subsequent introduction of metal oxide nanoparticles to modify AgNWs.
研究领域:
材料科学
·
纳米技术
·
表面化学
·
光电学
✓ 已验证
DOI
高影响因子
Nanoscale
·
2015
·Vol. 7
·期 32
·13694-13701
·
IF 7.394
Yuanyuan Song,Yaoquan Jiang,Liyi Shi,Shaomei Cao,Xin Feng,Miao Miao,Jianhui Fang
Natural biomass based cellulose nanopaper is becoming a promising transparent substrate to supersede traditional petroleum based polymer films in realizing future flexible paper-electronics. Here, ultrathin, highly transparent, outstanding conductive hybrid nanopaper with excellent mechanical flexibility was synthesized by the assembly of nanofibrillated cellulose (NFC) and silver nanowires (AgNWs) using a pressured extrusion paper-making technique. The hybrid nanopaper with a thickness of 4.5 μm has a good combination of transparent conductive performance and mechanical stability using bamboo/hemp NFC and AgNWs cross-linked by hydroxypropylmethyl cellulose (HPMC). The heterogeneous fibrous structure of BNFC/HNFC/AgNWs endows a uniform distribution and an enhanced forward light scattering, resulting in high electrical conductivity and optical transmittance. The hybrid nanopaper with an optimal weight ratio of BNFC/HNFC to AgNWs shows outstanding synergistic properties with a transmittance of 86.41% at 550 nm and a sheet resistance of 1.90 ohm sq−1, equal to the electronic conductivity, which is about 500 S cm−1. The BNFC/HNFC/AgNW hybrid nanopaper maintains a stable electrical conductivity after the peeling test and bending at 135° for 1000 cycles, indicating remarkably strong adhesion and mechanical flexibility. Of importance here is that the high-performance and low-cost hybrid nanopaper shows promising potential for electronics application in solar cells, flexible displays and other high-technology products.
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2023
·
IF 8.4
Guinan Chen,Jiahao Li,Nanjun Li,Chenglong Guo,Peng Jin,Liangjun Chen,Yongwu Peng
Thermal bimorph actuators have important applications in artificial muscles, switches, and microsensors for robotics and biomimetic devices. To broaden the adaptability of environments, it is essential to fabricate thermal actuators with multiple stimulus responses, including electricity, near-infrared (NIR) light, and ultraviolet (UV) light, with fast and large deformations . Herein, a thermal actuator with programmable stimuli response was designed by combining silver nanowires (AgNWs) with Ti 3 C 2 T x MXene . Due to the synergistic effect of AgNWs with high plasmonic properties and electrical conductivity as well as Ti 3 C 2 T x MXene with good flexibility and photothermal properties, the obtained actuator can roll up for 2200° at a low driving voltage (2 V) and shows a fast response speed of 0.4 s for a bending angle of 360° under NIR light. More remarkably, the obtained thermal actuator can curl 360° in 1.2s under UV light which has never been reported before. We believe that such thermal actuators are attractive for a wide range of innovative technologies involving soft-bodied robots, intelligent grippers, bionic worms, and information cryptography.
研究领域:
材料科学
·
智能设备
·
仿生学
✓ 已验证
产品关联
DOI
高影响因子
Metals
·
2023
·Vol. 13
·期 4
·738
·
IF 2.9
Xianjie Tang,Guoyou Gan,Xianglei Yu,Junpeng Li
A synthetic method was developed to produce silver nanowires. The method utilized TBAC (tetrabutylammonium chloride) instead of conventional metal halides as crystal seed additives to obtain purer silver nanowires. Our synthesis strategy relies on accelerating the rate of seed–wire conversion. The method allows for the control of the nanowire aspect ratio by tuning the ratio of Ag+ions to polyvinylpyrrolidone (PVP) monomer units and the molar mass of TBAC. The observed synthesis improvements meet the basic requirements of current industrial manufacturing.
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）