BioNanoScience
·
2026
·Vol. 16
·期 8
·518
·
IF 4
Wu Hecan,He Xinglin,Zeng Zhaoyubo
A multifunctional cotton-based fabric was prepared by alginate-assisted in situ growth of zinc oxide (ZnO) nanoparticles on commercial cotton using a water-bath process (90 °C, 3 h). The ZnO/cotton composite fabric (ZNCF) showed increased surface hydrophobicity, with a water contact angle (WCA) of up to 117°, compared with rapid water absorption by untreated cotton. In a skin-contact heat-dissipation test, the surface temperature of the arm covered with ZNCF was 2.8 °C higher than that covered with conventional cotton, indicating improved heat transfer from skin to fabric. Under simulated sunlight, ZNCF reduced surface heating by 10.7 °C relative to conventional cotton. UV-vis spectra showed enhanced absorption in the 200–400 nm region, supporting UV-shielding behavior under the tested spectral condition. ZNCF also promoted methylene blue degradation under light irradiation and inhibited the growth of Escherichia coli and Staphylococcus aureus in OD-based and agar-plate antibacterial assays. Combustion-residue observation further showed a larger and denser residue for ZNCF than for untreated cotton. This study provides a simple alginate-assisted route for preparing protective and functional thermal-management cotton textiles.
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Nanoscale
·
2025
·
IF 5.1
Kaishen Chen,Duoduo Yang,Yiping Cheng,Jianyong Luo,Zhiyu Liu,Weiwei Xing,Shusheng Pan,Chengyun Zhang
Conventional photocatalytic materials, predominantly in powder form, face challenges such as difficulty in recovery and secondary pollution, limiting their practical applications. In this study, a three-dimensional porous graphene framework (3DGF) nanostructure was induced on the surface of polyimide (PI) using laser processing, providing abundant binding sites for zinc oxide (ZnO). By adjusting the laser parameters, 3DGF nanostructures with varying crystallinity and framework characteristics were fabricated, and sea urchin-like ZnO nanoflowers were grown on the surface through a hydrothermal method. Different ZnO morphologies, such as orchid-like nanoflowers and nanorods, were achieved by varying the precursor concentrations. Under UV LED irradiation, 3DGF@ZnO/HMTA (2 : 2) exhibited remarkable photocatalytic degradation efficiencies of 89.62%, 100%, and 92.96% for methylene blue (MB), rhodamine B (RhB), and methyl orange (MO) within 90, 120, and 180 min, respectively. After multiple cycles of RhB photodegradation, the efficiency remained at 96.53%, and even after 20 tape adhesion tests, the photocatalytic degradation efficiency for RhB was sustained at 89.81%. The superior performance and stability highlight the potential of 3DGF@ZnO/HMTA for sustainable water pollution remediation.
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PubMed
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Haobo Zhu,Zhuo Wang,Lu Yuan,Junke Xie,Yalan Guo
Self-warning coatings are functional materials capable of converting subtle microscopic corrosion signals into macroscopically detectable optical responses; however, the high cost of conventional fillers and the complexity of core–shell fabrication hinder their large-scale application. To address this, we developed a composite material based on self-assembled ZnO quantum dots@ZIF-8 (ZnO QDs@ZIF-8) for low-cost corrosion monitoring of bronze artifacts. The material was synthesized via ultrasound-assisted preparation of ZnO quantum dots, followed by one-step encapsulation with ZIF-8 using 2-methylimidazole, resulting in a uniform core–shell structure. This process is simple and efficient (completed within 1 h at a cost of $0.05 per gram), and the resulting composite enables highly sensitive detection of Cu2+ through a fluorescence quenching mechanism (LOD = 78 nM). When integrated into an acrylic coating, the material can convert invisible corrosion signals into visible optical changes, achieving self-warning of corrosion. This offers a scalable solution for cultural heritage preservation and holds potential for extension to industrial monitoring systems.
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ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Yuenan Li,Shuaitong Liang,Shuoshuo Liu,Yinzhao Sun,Junping Miao,Yiding Lu,Kai Qian,Mengyao Lv,Changsheng Guo,Pengju Han,Xiang Li,Weili Shao,Jianxin He
Potassium metal batteries (KMBs) are a strong alternative to lithium-ion batteries due to their high energy density and low cost. However, uneven potassium deposition and dendrite growth can lead to short circuits, limiting their application. Research has demonstrated that loading potassium onto appropriate carriers such as porous carbon nanofibers (CNFs) can effectively suppress dendrite formation. In this study, we develop a dendrite-free potassium metal composite anode material, ZnO@CNFs, with porous CNFs as the conductive framework, to regulate potassium deposition via conversion reactions. We used cutting-edge analytical techniques and theoretical computations to explore the mechanism for enhancing K + deposition in the pores and improving electrolyte wetting efficiency in high-porosity structures. The spatial distribution of the ZnO component, coupled with its potassium-affinitive properties, generates a synergistic effect, effectively promoting the interface insertion/extraction dynamics of K + . These innovative approaches offer a significant technological pathway for the development of long-cycle-life KMBs.
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APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Shiqi Li,Liang Fu,Zhenping Qu,Mengyuan Qin,Lingling Zhou
Zn-based catalysts are attractive candidates for electrocatalytic CO 2 reduction to syngas, yet their unstable structure and narrow syngas ratio limit the application. In this work, the Ga 2 O 3 /ZnO (GZO) catalyst with stable dual active sites was prepared for tunable CO/H 2 ratio (0.21 ∼ 3.07) production over a wide potential range (−0.79 ∼ −1.29 V vs. RHE). The Ga 2 O 3 decoration could tailor the electronic structure of ZnO and boost the generation of oxygen vacancies (O V ) in the catalyst, thus enhancing the adsorption of CO 2 and the transportation of electrons, further improving CO selectivity at low potentials. Meanwhile, at high potential, Ga 2 O 3 would dominate the promotion of hydrogen evolution reaction (HER). As a result, the GZO catalyst led to the tunable syngas, and the syngas ratio varied upon changing the applied potentials and Ga 2 O 3 content. This work provided new possibilities for the development of advanced catalytic systems for various syngas industrial applications.
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Chinese Physics B
·
2025
·
IF 1.5
Zhi-Qiang Yu,Jin-Hao Jia,Mei-Lian Ou,Tang-You Sun,Zhi-Mou Xu
A facile sol-gel method and heating treatment process have been reported to synthesize the wurtzite phase ZnO nanofilms with the preferential growth orientation along the [001] direction on the FTO substrates. The as-prepared wurtzite phase ZnO nanofilms-based memristor with the W/ZnO/FTO sandwich has demonstrated a reliable nonvolatile bipolar resistive switching behaviors with an ultralow set voltage of about +3 V and reset voltage of approximately -3.6 V, high resistive switching ratio of more than two orders of magnitude, good resistance retention ability (up to 104 seconds), and excellent durability. Furthermore, the resistive switching behavior in the low-resistance state is attributed to the Ohmic conduction mechanism, while the resistive switching behavior in the high-resistance state is controlled by the trap-modulated space charge limited current (SCLC) mechanism. In addition, the conductive filament model regulated by the oxygen vacancies is proposed, where the absence of nonvolatile memory behavior can be attributed to the formation and rupture of conductive filaments in the W/ZnO/FTO memristor. This work demonstrates that the as-prepared wurtzite phase ZnO nanofilms-based W/ZnO/FTO memristor has promising prospects in future nonvolatile memory applications.
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NANOTECHNOLOGY
·
2025
·Vol. 36
·期 24
·245501
·
IF 2.8
Ning Lian,Jiahang Huo,Wei Liu,Zhiheng Zhang,Xin Chen,Yuqing Du,Xinshou Wang,Jian Song,Gang Cheng
The detection of volatile organic compounds (VOCs), particularly acetone, is critical for applications in environmental monitoring and medical diagnostics, including diabetes detection. Conventional metal oxide semiconductor sensors face challenges such as poor selectivity, high operating temperatures, and limited stability. This study addresses these limitations by developing Pt-doped ZnO nanotubes (Pt–ZnO NTs) using a coaxial electrospinning and in-situ growth method. The process effectively incorporates ZIF-8-derived hollow ZnO structures and uniformly distributed Pt nanoparticles to enhance gas sensing performance. Key findings reveal that the 1% Pt–ZnO NTs sensor exhibits exceptional acetone sensitivity (Ra/Rg = 48.2 for 10 ppm), broad detection range (81.2 ppb–50 ppm), reduced operating temperature (240 °C), and robust selectivity against interfering gases. Advanced characterization and theoretical density functional theory analysis show that Pt doping increases oxygen vacancy concentration, enhances electron transport, and reduces the material's band gap, contributing to superior sensing capabilities. Additionally, the sensor demonstrates excellent stability, repeatability, and practical applicability in distinguishing diabetic and healthy exhaled breath samples. This research introduces a novel gas sensing platform that integrates metal–organic framework-derived structures and noble metal catalysts, offering significant advancements in sensitivity, selectivity, and reliability for VOC detection.
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高影响因子
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
·
2022
·
IF 1.404
Zhenying Chen,Wen Deng
In this research, four titanium-doped zinc oxide (TZO) thin films were deposited on quartz glass substrates by radio frequency (RF) magnetron sputtering. Three of the samples were annealed at 4 0 0 ∘ C for 40 mins in N 2 , Ar and vacuum, respectively. The microstructure and photoelectric properties of the films were characterized. The results showed that annealing in different atmospheres has a significant effect on the microstructure and photoelectric properties. The structure of all the annealed films remained polycrystalline, with a c -axis preferred orientation, and the crystallization quality was improved. In addition, the photoelectric properties were also significantly improved by annealing with the average transmittance in the visible region exceeding 90%, the resistivity reaching 3 . 3 2 × 1 0 − 4 Ω ⋅ cm . The conductivity enhancement was mainly attributed to the increased mobility of carriers. Annealing in argon had the best effect. Finally, the resistivity of all the samples experienced an initial negligible change followed by an increase as the temperature was raised from 10 to 350 K.
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.1
Xuan Weng,Guanbo Wang,Ming Li,Hai Jiang
Many electrochemical glucose sensors rely on enzymatic catalysts such as glucose oxidase (GOx). However, such enzyme-based sensors are susceptible to environmental perturbations, which can compromise sensitivity and measurement reproducibility. Here, we report a flexible, enzyme-free sweat-glucose sensor for wearable diagnostic systems by co-depositing hydrothermally prepared zinc oxide–cerium oxide/reduced graphene oxide (ZnO–CeO 2 /rGO) nanocomposites onto laser-scribed graphene electrodes (LSGE) patterned on polyimide (PI) films. Scanning electron microscope (SEM), X-ray diffraction (XRD), UV–vis spectroscopy, and Raman spectroscopy verified the formation and structural integrity of the hybrid nanocomposite. The electrochemical characterization, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS), indicated accelerated charge transfer after modification. Under optimized conditions, the biosensor quantified sweat glucose over 0.01–3.0 mM with a sensitivity of 32.5 μA·mM −1 cm −2 and a low detection limit of 14 μM. Proof-of-concept measurements on volunteers before and after meals further supported its feasibility for wearable and personalized healthcare diagnostics.
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Journal of Nanomaterials
·
2017
·Vol. 2017
·期 1
·6329072
·
IF 1.871
Bitao Fan,Qiufang Yao,Chao Wang,Ye Xiong,Qingfeng Sun,Chunde Jin
Spawns structure of rod-like ZnO wrapped in the cellulose nanofibers was successfully fabricated through a facile one-step hydrothermal method, and their electromagnetic wave absorption properties were investigated. The structure and properties of the composite aerogel were characterized. The enlarged morphology images showed that the as-prepared cellulose nanofiber/ZnO samples were spawns structure of rod-like ZnO wrapped in the cellulose nanofibers. The composite aerogel in a wax matrix exhibited excellent electromagnetic wave absorption performance over 2–18 GHz. The widest absorption bandwidth of 30 wt% contained with reflection loss values less than −10 dB was up to 12 GHz (6–18 GHz) at the thickness of 5.5 mm and the minimum reflection loss value reached −26.32 dB at 15.2 GHz when the thickness of the absorber was 3 mm.
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PACKAGING TECHNOLOGY AND SCIENCE
·
2018
·Vol. 31
·期 11
·747-753
·
IF 1.808
Hong-Biao Chen,Chang-Ying Hu
Polypropylene nanocomposites have great potential applications in food packaging and the evaluation of the migration of nanoparticles is important for the food safety. Three types of polypropylene (homopolymer of polypropylene, PPH; blockcopolymer of polypropylene, PPB; random copolymer of polypropylene, PPR) nanocomposite films with or without coupling agent were tested in 3% acetic acid as food simulant. The migration amount of zinc was quantified by inductively coupled plasma atomic emission spectroscopy. The surface morphology and crystallinity were explored by field emission scanning electron microscopy, atomic force microscopy, and differential scanning calorimetry, respectively. The results showed that the incorporation of titanate coupling agent could inhibit ZnO-NPs migration from the films since titanate coupling agent could improve the interface between ZnO-NPs and PP molecular chain segment. Furthermore, the migration rate of zinc was dependent on the degree of crystallinity ( X c ) of PP and their order of the maximum migration rate was PPH, PPB and PPR. The notable phase separation could be observed from the morphology of nano-ZnO/PPH, while ZnO-NPs could be well dispersed in the PPR matrix. Thus, ZnO-NPs restricted the molecular chain segment of PPH and reduced its X c from 88.6% to 73.2%. The results demonstrated that titanate coupling agent and PPR could inhibit the migration of ZnO-NPs significantly.
研究领域:
食品安全
·
聚合物纳米复合材料
·
材料科学
·
迁移研究
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高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Fan-Bo Meng,Xiangrong Chen,Yiwen Shi,Zelin Hong,Hanshan Zhu,Awais Muhammad,Ashish Paramane,Yufen Wang,Ruobin Huang,Xuejiao Deng
The interface insulation plays a key role in the long-distance high-voltage direct current (HVDC) cables. In this paper, four core–shell ZnO suspensions formed by different alkane coating were prepared for spraying on the factory joint interface. The chemical, electrical, and simulation studies were performed on synthesized nanoparticles and factory joint samples. Results show that the alkane-coated ZnO exhibits a noticeable surface halo and the thermal weight loss ratio increases with the increase of the alkane chain. Moreover, with the increase in the sprayed C1-ZnO concentration (coated by trimethoxymethylsilane) from 0.005 to 0.1 wt%, the insulating properties of the samples show an increasing trend at first and then decrease. Furthermore, as the encapsulated alkane chain increases, a very small concentration of 0.01 wt% of ZnO suspension (C6-ZnO) coated with hexyltrimethoxysilane was found to be a highly effective spray reagent, which can significantly reduce the DC electrical conductivity, increase the DC breakdown strength, and remarkably inhibit the space charge accumulation at the interface. The microscopic characterization showed a good dispersion of nanoparticles at the interface. The space charge simulation and molecular simulation results elucidated the mechanism of the interfacial nanoparticles to suppress the space charge and insulation property improvement. This approach provides a new solution for realizing 500 kV or higher voltage DC cables to achieve long-distance connections and breakpoint repairs or improve other polymer interface insulation.
研究领域:
电气工程
·
材料科学
·
高电压绝缘技术
·
纳米复合材料
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危险品化学品经营许可证（带存储）