ACS Applied Nano Materials
·
2025
·
IF 5.5
Qinghuan Gao,Shuai Han,Minxing Zhao,Yanping Song,Zhao li,Jun Kang,Na Hong,Shihao Wang,Shichang Wang,Zhiyuan Yang,Yongfeng Wang,Nian Li,Zhenyang Wang
The growing demand for advanced energy storage systems has intensified the exploration of materials for supercapacitors (SCs). Zeolitic imidazolate frameworks (ZIFs) and their derivatives have emerged as promising candidates due to their unique structural and performance characteristics. This study demonstrates a laser-induced method for synthesizing ZnO/graphene composites with a porous structure derived from dopamine-coated ZIF-8. The simultaneous laser-induced carbonization of dopamine to form graphene and decomposition of ZIF-8 to generate ZnO resulted in a synergistic porous structure, significantly enhancing the charge transport ability and electrochemical performance of the ZnO/graphene composite. Following optimization, the ZnO/graphene composite electrode (ZPL-9) achieved a high specific capacitance of 331.8 mF cm–2 at a current density of 1 mA cm–2. Furthermore, the electrode retained 87% of its capacitance after 10,000 cycles at 5 mA cm–2, highlighting its robust cycle stability. A button-type symmetric SC was successfully assembled using the ZPL-9 electrode, achieving an energy density of 5.2 μWh cm–2 at a power density of 299.04 μW cm–2. The study not only provides insights into the application of MOF-based materials in energy storage but also demonstrates the potential of laser-induced methods for synthesizing high-performance electrode materials.
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DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Jijun Ding,Pengfei Zhao,Haixia Chen
Flexible pressure sensors have broad prospects in smart wearables, healthcare, and human-computer interaction. Nevertheless, flexible pressure sensors still face numerous thorny challenges. It has become a crucial problem to skillfully design and successfully achieve flexible pressure sensors with both a high sensing range and ultrahigh sensitivity. The sensor is designed and realized with inspiration drawn from the layered microstructure of human skin, and hierarchical structure flexible pressure sensors are fabricated, where PDMS microstructures/MWCNTs act as the top electrode, filter paper/ZnO nanostructures/MWCNTs act as the intermediate active layer, and an Ag interdigitated electrode acts as the bottom electrode. The sensing performance of the sensor is investigated to develop the application of pressure sensors for human health detection in daily life, and a pressure sensor array is prepared to investigate the detection of spatial pressure distribution. Sensors based on paper and PDMS can achieve low-pressure detection (30 Pa), high sensitivity (261.38 kPa–1), fast response time (∼73.8 ms), and excellent cyclic stability (10 000 cycles). Finally, the sensor demonstrates its functionality by lighting up a small lamp, which confirms that the as-prepared pressure sensor has excellent application scenarios and is beneficial for the development of flexible electronic devices.
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2025
·
IF 8.3
Ruobing Zheng,Yu Yang,Qian Chen,Jie Huan,Lili Zhu,Yuping Sun,Xuebin Zhu
Co 3 O 4 catalysts were grown on ZnO/carbon cloth (CC) by electrodeposition and then the ZnO layer was etched by KOH, and the electrocatalytic water oxygen evolution reaction was investigated. The introduction and etching of ZnO layer can enhance the specific surface area of Co 3 O 4 due to the increased interface between Co 3 O 4 layer and CC as well as the smaller grain size, leading to more active site exposure. Moreover, oxygen vacancies were increased obviously through the above processing, leading to the further improvement in oxygen evolution reaction performance. The porous Co 3 O 4 through ZnO etching was exhibited 337.40 and 385.40 mV at the current density of 10 and 40 mA cm −2 , respectively, and the Tafel slope of porous Co 3 O 4 through ZnO etching is 79.60 mV dec −1 . The results will provide a feasible route to optimize the oxygen evolution reaction performance of Co 3 O 4 catalysts.
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Biyan Chen,Yafeng Huang,Qingguang Xiao,Tianhao Wang,Yechen Hu,Xiufang Chen,Fengtao Chen,Wangyang Lu
Copper-based agents have been utilized widely in a range of commercial antibacterial products due to their superior release-killing antibacterial properties. However, the environmental concerns associated with the release of Cu2+ ions have restricted their application in textiles. In this study, Cu3P-ZnO nanocomposites with enzyme-like properties were synthesized through the phosphating of CuO-ZnO, which were employed to functionalize the surface of cotton fabric using a dipping–padding–drying method. The physicochemical properties of the functional cotton fabrics were characterized using various techniques. The antibacterial efficacy of Cu3P-ZnO/cotton was assessed against Gram-negative E. coli and Gram-positive S. aureus bacteria. Remarkably, Cu3P-ZnO/cotton demonstrated significant antibacterial activity and stability without necessitating auxiliary conditions; achieving >99% antibacterial effectiveness against both E. coli and S. aureus, while retaining 94.7% efficiency after 50 washing cycles. The underlying antibacterial mechanism was elucidated, revealing that reactive oxygen species (ROS), especially singlet oxygen (1O2), plays a crucial role in mediating the antibacterial action of Cu3P-ZnO/cotton in absence of light, whereas direct contact between Cu3P-ZnO and bacteria serve secondary functions in this process. This research provides valuable insights into the design of ROS-mediated antibacterial agents for applications in antimicrobial textiles.
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DOI
高影响因子
Polymers
·
2025
·Vol. 17
·期 10
·1356
·
IF 4.9
Yumeng Guo,Qian Wang,Guoming Sun,Ying Zheng
Developing an oral fibrous barrier membrane that prevents bacterial invasion while possessing antibacterial properties and facilitating fluid decompression remains a significant clinical and scientific challenge. In this study, we developed a novel Janus membrane by modifying a polypropylene (PP) fibrous membrane with dopamine and zinc oxide nanoparticles (ZnO-NPs). Fabricated via a simple floating immersion method, this asymmetric bilayer structure consists of a hydrophobic PP layer and a hydrophilic PP/dopamine@30 nm ZnO layer, providing both antibacterial properties and enhanced fluid filtration. The mechanical properties of the PP/ZnO membrane were significantly enhanced, with an increase in the Young’s modulus and ultimate tensile strength, indicating improved strength. Antibacterial activity againstStreptococcus mutans(S. mutans) demonstrated a significant reduction in biofilm formation on the PP/dopamine@30 nm ZnO surface compared to unmodified PP. Water flux tests confirmed a stable, high filtration rate, with increased permeability under rising pressure. In vivo experiments with miniature pigs confirmed reduced bacterial presence on the sterile side of the membrane. These findings highlight the potential of the membrane for oral exudate filtration, extending filtration time and minimizing infection risks under strict sterility conditions. Further improvements in barrier properties are necessary to optimize its clinical performance.
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DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2015
·
IF 6.723
Zhaoxiang Zhong,Zhe Xu,Ting Sheng,Jianfeng Yao,Weihong Xing,Yong Wang
Porous membranes/filters that can remove airborne fine particulates, for example, PM2.5, with high efficiency at low energy consumption are of significant interest. Herein, we report on the fabrication of a new class of unusual superior air filters with ultrahigh efficiency and an interesting antibacterial functionality. We use atomic layer deposition (ALD) to uniformly seed ZnO on the surface of expanded polytetrafluoroethylene (ePTFE) matrix, and then synthesize well-aligned ZnO nanorods with tunable widths and lengths from the seeds under hydrothermal conditions. The presence of ZnO nanorods reduces the effective pore sizes of the ePTFE filters at little expense of energy consumption. As a consequence, the filters exhibit exceptional dust removal efficiencies greater than 99.9999% with much lower energy consumption than conventional filters. Significantly, the presence of ZnO nanorods strongly inhibits the propagation of both Gram positive and negative bacteria on the filters. Therefore, the functionalized filters can potentially overcome the inherent limitation in the trade-off effect and imply their superiority for controlling indoor air quality.
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DOI
高影响因子
FIBERS AND POLYMERS
·
2020
·Vol. 21
·期 3
·505-512
·
IF 1.797
Gao Dangge,Liu Jingjing,Lyu Leihong,Li Yajuan,Ma Jianzhong,Baig Warda
Ag deposited ZnO (Ag/ZnO) nano materials with different Ag molar content were prepared via chemical precipitation method. The morphology of nano ZnO was rod like, while the size was 170 nm in length and 30 nm in diameter. Silver nanoparticles were found to be spherical with the diameter about 15 nm. When it deposited on the surface of the nano ZnO, the size of the nano ZnO was almost unchanged when the doping amount is 2.5 %. All the samples were treated on cotton fabric, and the laden fabric had excellent performance on hydrophobicity, including UV resistance, antibacterial activity and anti-mildew. The contact angle of fabric loaded with 3 % Ag/ZnO was 139 compare to nano ZnO, which was 103°. The fabric loaded with Ag/ZnO had superior performance of UV resistance. With the increase of depositing amount, the antibacterial rates were promoted; the antibacterial rates against S. aureus , E. coil , and C. albicans of fabric with 3 % Ag/ZnO were promoted to 91 %, 96 % and 98 %. Moreover, Ag/ZnO gave cotton fabrics good anti-mildew performance, especially A. flavus , and its anti-mildew effect could reach 0 grade.
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2021
·
IF 6.707
Xueer Ning,Aize Hao,Yali Cao,Na lv,Dianzeng Jia
The highly efficient piezocatalysts of Ag decorated ZnO nanocrystals (Ag-ZnO) have been designed and synthesized. Remarkably, piezocatalytic activity of Ag-ZnO depends on Ag concentrations. The piezocatalyst with suitable amount of 15% Ag-ZnO presents excellent piezocatalytic activity towards methylene orange (MO) organic dye degradation under ultrasonic vibration. The reaction rate constant of 15% Ag-ZnO is up to 19.58 × 10 −3 min −1 , which is 4.2 times in contrast with pure ZnO. Piezocatalytic efficiency of 15% Ag-ZnO reaches to ~ 90.5% after 120 min via combining piezoelectric effect with electrochemical synergistic coupling strategy. It also demonstrates that Ag decorated and piezo-electrochemical synergistic coupling effects can induce large amount polarization electric charges to form active superoxide radicals (·O 2 − ) and hydroxyl radical (·OH), further greatly facilitate the carriers transport and accelerate the electric charges carrier separation of the reaction kinetics process resulting in promoting the piezocatalytic degradation activity. Furthermore, a novel piezocatalytic mechanism has been put forward to elucidate the relationship between piezocatalytic decomposition performance and contribution in Ag decorated, and piezo-electrochemical synergistic coupling effects. The promising strategy provides an innovative guidance and idea for designing excellent performance piezocatalyst in dye wastewater decolorization treatment application.
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2016
·
IF 3.15
Yanxia Guo,Siwen Lin,Xuan Li,Yuping Liu
Novel hierarchically structured ZnO, including rose-like, dandelion-like and flower-like, have been synthesized through a simple hydrothermal process using different amino acids (glutamine, histidine and glycine) as structure-directing agents and urea as deposition agent, followed by subsequent calcination. Amino acids played a crucial role in the formation of hierarchically structured ZnO, and different amino acids could induce different exquisite shapes and assembly ways, as well as more oxygen defects. The prepared hierarchically structured ZnO exhibited excellent photocatalytic activities for the photodegradation of Rhodamine B, which was associated with their special hierarchical structures, large BET surface area and the existence of more oxygen defects. Amino acid-assisted growth mechanism of hierarchically structured ZnO was also discussed.
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高影响因子
Journal of Nanomaterials
·
2015
·Vol. 2015
·期 1
·242798
·
IF 1.644
Ke-Jian Ju,Ming Zhang,Qian-Li Zhang,Jie Wei,Ai-Jun Wang
Rambutan-like ZnO hierarchical hollow microspheres (ZnO HHMs) were constructed under hydrothermal conditions, using carboxyl methyl starch (CMS) as a soft template. The resulting products were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The experimental parameters and growth mechanism of rambutan-like ZnO HHMs were discussed in some detail. The as-prepared samples displayed improved photocatalytic activity for the degradation of rhodamine B under ultraviolet (UV) irradiation.
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DOI
高影响因子
NANO
·
2023
·
IF 1.2
Xueqi Wang,Jinkun Cheng,Xudong Xiong,Chao Xu,Zhao Fan,Yongqian Wang
Photothermal-assisted photocatalysis is a novel catalytic technology that can not only utilize both light energy and light heat, but also simultaneously incorporate superhydrophobicity and self-healing ability into photocatalysts. It represents a significant advancement in efficient photocatalytic degradation of water pollution. Here, by incorporating the semiconductor photothermal agent CuS on the outer layer of ZnO nanoflowers, the deposited CuS layer exhibits an outstanding photothermal effect under near-infrared light irradiation, which can absorb infrared light and convert it into heat energy, enhancing the performance of the ZnO nanoflowers in situ . Meanwhile, a photothermal conversion surface material with self-healing superhydrophobicity is prepared by using a mixture of beeswax and polydimethylsiloxane. The broad light absorption ability and enhanced charge transfer accelerate the photocatalytic efficiency, in addition, the incorporation of superhydrophobicity enables resistance to corrosive liquid pollution and repairs its superhydrophobicity damage by beeswax migration to provide lasting protection. The degradation rate of MB is as high as 98% within 80 min. Finally, the mechanism of photothermal effect in photocatalysis and the mechanism of self-healing superhydrophobicity are proposed. This work innovatively integrates photothermal effect and self-healing superhydrophobic function into photocatalytic degradation of water pollution technology, which broadens the scope of improving photocatalytic performance and extends the photocatalyst operation life to a certain extent.
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高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2022
·Vol. 106
·期 5
·2911-2917
·
IF 4.186
Zhifang Zhou,Yunpeng Zheng,Yueyang Yang,Wenyu Zhang,Bin Wei,Mingchu Zou,Jinle Lan,Ce-Wen Nan,Yuan-Hua Lin
As a transparent thermoelectric oxide, gallium-doped zinc oxide (GZO) has the potential to power wearable or portable electronics and may be used in the integrated circuits industry for chip cooling. Constructing ZnO–GZO interfaces has been proposed as an effective strategy for improving thermoelectric performance of GZO thin films. However, without the aid of band structure calculation for multilayered films, it is hard to directly elucidate the underlying mechanisms of carrier transport. Weighted mobility is an indicator that reveals the inherent electronic transport properties like carrier scattering, electronic band structure, and so on. Thus, to further investigate the effects of ZnO–GZO interfaces on electrical properties of GZO thin films, the structures containing different numbers of ZnO–GZO interfaces were designed and the correlations among numbers of ZnO–GZO interfaces, weighted mobility, and electrical properties were explored. It was found that with more ZnO–GZO interfaces, the weighted mobility increased, and the power factor values also improved as well. Consequently, an enhanced power factor value reached 439 μW m −1 K −2 at 623 K. This work demonstrated the beneficial effects of multiple interfaces on the improvements of electrical transport performance through analyzing weighted mobility, which laid a foundation for further optimization of thermoelectric performance.
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高影响因子
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