ChemistrySelect
·
2025
·Vol. 10
·期 6
·e202405509
·
IF 2
Xinxin Xie,Peilong Jiang,Wenqiang Ma,Chao Feng,Lifan Cai,Guiyou Zhu,Jianwei Guo
Graphical Silane coupling agent surface functionalized ZnO QDs(zinc oxide quantum dots) has been prepared with smaller size and lower tendency to agglomerate. ZnO-KH570 QDs has the best modification effect. When the dosage of ZnO-KH570 QDs is 0.1%, the inhibition rate of ZnO-KH570 QDs/RTV against Escherichia coli and Staphylococcus aureus can reach 99.9%. ZnO QDs (zinc oxide quantum dots) have potential value in the field of silicone rubber due to their excellent antimicrobial properties. However, the poor dispersion of ZnO QDs in silicone rubber limits their application. The surface functionalization of ZnO QDs can improve their dispersion in silicone rubber. This study showed that the surface of ZnO QDs could be effectively functionalized by using different kinds of silane coupling agents KH550 (3-aminopropyltriethoxysilane), KH570 (3-acryloyloxypropyltrimethoxysilane), KH580 (3-mercaptopropyltriethoxysilane), A151 (vinyltriethoxysilane) and HD128 (phenyltriethoxysilane). The surface-functionalized ZnO QDs show a reduction in particle size to 4–5 nm. The number and size of agglomerated particles on the surface of surface-functionalized ZnO QDs/RTV (room temperature vulcanized silicone rubber) composites were significantly reduced. Meanwhile, the surface roughness decreased by 92.10% (KH550), 93.08% (KH570), 91.36% (KH580), 85.43% (A151), and 90.86% (HD128), respectively, and the viscosity was increased by 2.90% (KH550), 4.35% (KH570), 2.90% (KH580), 1.54% (A151), and 3.62% (HD128), respectively. ZnO QDs-KH570 has the best dispersion effect. Furthermore, the antibacterial rate of ZnO QDs-KH570/RTV against Escherichia coli and Staphylococcus aureus achieved 99.9% when the additional amount of ZnO-KH570 QDs was 0.1%, which indicated excellent antibacterial performance and could contribute to the development of silicone rubber medical supplies.
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高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Limin Bian,Lin Chen,Xiong Shen,Jinhe Wei,Fei Hu,Zhongming Wang,Chenglong Lv,Xin Peng,Qiuyun Ouyang
Nonlinear optical (NLO) properties and environmental stability are two important issues in the application of Rb0.25Cs0.75PbBr3/ZnO nanocomposites for NLO devices. We present an easy-to-operate and efficient approach to improving these two issues. The Rb0.25Cs0.75PbBr3/ZnO nanocomposites were synthesized by a hot injection method. The ZnO, Rb0.25Cs0.75PbBr3 quantum dots (QDs) and Rb0.25Cs0.75PbBr3/ZnO nanocomposites were dispersed into methyl methacrylate (MMA) to fabricate the (ZnO)4/polymethyl methacrylate (PMMA), (Rb0.25Cs0.75PbBr3)4/PMMA, and (Rb0.25Cs0.75PbBr3/ZnO)4/PMMA organic glasses (OGs). The nonlinear absorption (NLA) and nonlinear refraction (NLR) properties of the samples were investigated by using the open-aperture and closed-aperture Z-scan technique. The results showed that the NLO properties of the (Rb0.25Cs0.75PbBr3/ZnO)4/PMMA OG were significantly improved compared with those of (ZnO)4/PMMA and (Rb0.25Cs0.75PbBr3)4/PMMA OGs, which can be attributed to the positive synergistic effects between ZnO and Rb0.25Cs0.75PbBr3 QDs. Due to the protective effect of PMMA, the linear absorption properties of the (Rb0.25Cs0.75PbBr3/ZnO)4/PMMA OG showed little change after 28 days to 4 months. In general, the results demonstrate that Rb0.25Cs0.75PbBr3/ZnO nanocomposites have enormous application potential in NLO devices.
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高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 36
·期 24
·1-12
·
IF 2.8
Zhang Xuemei,Qu Can,Li Yiyang,Kang Yuting,Pu Linyu,Huang Xu,Liu Jingsong
A new type of glass/ Al 2 O 3 ceramic composite material was prepared by the conventional solid-state method for lead-free low-softening ZnO-B 2 O 3 -SiO 2 (ZBS) glass. The effects of glass content and sintering temperature on the phase structure, sintering performance, microstructure, dielectric properties, thermal properties and mechanical properties of the composite materials were investigated by adding different mass fractions of ZnO-B 2 O 3 -SiO 2 glass into Al 2 O 3 ceramics. The results show that the doped ZnO-B 2 O 3 -SiO 2 glass effectively reduced the sintering temperature of Al 2 O 3 ceramics, and the sintering aid ZnO-B 2 O 3 -SiO 2 glass had no crystalline phase. The ZBS/ Al 2 O 3 composites sintered at 875–925 ℃ mainly contain two crystalline phases, ZnAl 2 O 4 and Zn 2 SiO 4 , and the content of the phases depended on the composition of the composites and the sintering temperature. When the content of ZnO-B 2 O 3 -SiO 2 glass was 74 wt.%, and the composites were sintered at 875 ℃ for 1 h, the volume density of the composites was 3.49 g/cm 3 , the thermal conductivity λ was 1.46W/mK, the thermal expansion coefficient CTE was 5.52/ppm ℃, the flexural strength was 155 MPa, the relative dielectric constant was 6.28, and the dielectric loss was 0.937 × 10 −3 (@12.571 GHz). The dielectric properties are the best, and it has a good application prospect in LTCC at high frequencies.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Li Song,Zhiyao Fu,Zhi Ye,Junjia He
ZnO@SiO 2 core-shell structured powder, as the raw material for preparing ZnO varistor, is conducive to obtaining a fine and uniform microstructure, which is of positive significance for acquiring high-performance resistors. Currently, limited research has been conducted on the microstructural evolution of core-shell structures during the sintering process, and the mechanism of material migration remains inadequately understood. This study systematically investigated the sintering behavior of nanostructured ZnO@SiO 2 core-shell compacts by varying both the sintering profiles and Si 4+ /Zn 2+ molar ratios. XRD, SEM, and FTEM characterization techniques were employed to track the microstructural evolution across critical sintering stages and to analyze the effect of the shell layer thickness on the microstructure evolution. To more clearly elucidate the sintering characteristics of the core-shell structure, a control group comprising directly mixed ZnO-SiO 2 powders was included. The dominant mechanisms of material transport were elucidated by EPMA through elemental mapping at critical sintering stages, coupled with microstructural evolution analysis. The core-shell structure, acting as a heterogeneous unit, demonstrated distinct sintering behavior compared to directly mixed ZnO-SiO 2 powders. This disparity arises from the modified interfacial contact between ZnO and SiO 2 in the core-shell architecture. Specifically, the phase transition temperature was reduced, the onset sintering temperature was elevated, and the densification temperature was lowered. During microstructural evolution, Si from the shell layer initially diffuses into the sintered neck regions via surface transport. Notably, the mid-stage sintering is characterized by extensive formation of a glassy liquid phase, which significantly accelerates densification through viscous flow-mediated mass transfer. During the final densification stage of sintering, grain boundary diffusion mechanisms dominate the process. Throughout the sintering process, the network structure formed by Si migration promotes microstructural homogenization while effectively suppressing grain growth.
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高影响因子
TRIBOLOGY INTERNATIONAL
·
2025
·
IF 6.9
Xiaoqiang Fan,Yushan He,Yue Liu,Ying Huang,Minhao Zhu
ZnO-loaded graphene oxide (GO@ZnO) heterostructure was synthesized via a one-step hydrothermal method and incorporated as nanofillers into water-borne epoxy coatings (EP). Incorporating 1.0 wt% GO@ZnO, identified as the optimal loading, significantly enhances the UV resistance of EP and reduces the wear rate by 82.0 % compared to pure epoxy. The tribological improvement stems from synergistic effects between GO and ZnO, validated by DFT calculations showing strong interfacial interaction. Moreover, the well-dispersed GO@ZnO heterostructure enhances stability and load-bearing capacity of composite coating. This work advances heterostructure nano-composites design for practical protective applications.
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高影响因子
Food Packaging and Shelf Life
·
2025
·
IF 10.6
Hui-Fang Du,Fei Cao,Zhi-Hong Xu,Ya-Xian Gao,Ya-Hui Zhang,Sen Pang,Wan Li,Long-Fei Li,Li Han,Li-Juan Wang,Hong-De An
Apple ring rot, caused by Botryosphaeria dothidea , is a major postharvest disease that reduces the shelf life and quality of apples. In this study, a biodegradable composite packaging film was developed by incorporating diaporthein B (DTB), a marine-derived antifungal compound, into a chitosan (CS) matrix reinforced with zinc oxide nanoparticles (ZnO). This strategy aimed to enhance the bioavailability and applicability of DTB for postharvest disease control. The resulting DTB/ZnO/CS film exhibited synergistic antifungal activity and significantly suppressed lesion expansion caused by B. dothidea on infected apples, with an inhibition rate of 65.5 % after 4 days of incubation. Moreover, it contributed to maintaining fruit quality by preserving physicochemical quality, delaying senescence, and mitigating oxidative stress during storage. Biodegradability assays confirmed the film’s rapid degradation in natural soil, highlighting its eco-friendly properties. Subacute toxicity evaluations indicated no adverse effects, supporting its biosafety for potential food-contact applications. Overall, the DTB/ZnO/CS film represents a sustainable and practical strategy for controlling apple ring rot and other postharvest fungal diseases, while contributing to food safety and sustainability.
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高影响因子
Microstructures
·
2025
·Vol. 5
·期 3
·N
·
IF 9
Kaiwen Tian,Yukang Fu,Inzimamul Haq,Shuangyang Kuang,Gaojie Xiong,Zeyuan Zhao,Tianyu Zhou,Jun Weng,Xiang Peng,Liwei Xiong
Aim: Zinc oxide (ZnO) is an n-type semiconductor with a wide bandgap, excellent electron mobility, and stable chemical characteristics, making it potentially applicable in the field of gas sensing. However, conventional ZnO-based gas sensors face challenges such as high operating temperatures and low sensitivity.Methods: In this paper, we first synthesized ZIF-8 with a rhombic dodecahedron structure using a room-temperature chemical precipitation method. By doping ZIF-8 with cobalt (Co) and exchanging gold ions, followed by calcination in air, we obtained a metal-organic framework (MOF) derived porous Au@Co-ZnO nanostructure.Results: This nanostructure retained the large specific surface area and porous characteristics of ZIF-8, while its gas sensing performance was significantly enhanced compared to the pure MOF-derived ZnO nanostructure, due to Co doping and gold nanoparticle modification. At an ethanol concentration of 100 ppm, the Au@Co-ZnO sample demonstrated its best performance at 140 °C, with a response value of 205.3. This result was 28.9 times higher compared to the pure ZnO sample, which showed a response value of 7.1 under identical conditions. Additionally, the optimal operating temperature was 40 °C lower than that of the pure ZnO sample (180 °C). Furthermore, the Au@Co-ZnO samples demonstrated good stability and selectivity for ethanol gas.Conclusion: The proposed MOF-derived porous Au@Co-ZnO nanostructures not only advance the application of MOF-derived materials in gas detection but also offer a novel approach for boosting the gas-sensing performance of other metal oxide materials.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Cheng Yaru,Zhang Lianchen,Zhai Runlong,Ma Jialong,Teng Feng,Jiao Yang
Photoelectrochemical photodetector as the hot research topic in photodetection filed has attached many attentions, and enhancing its performance through adjusting the barrier at interfaces is an effective route. In this study, an Ag film was prepared between the ITO conductive glass and ZnO nanoparticles by an electrochemical deposition method. Compared with the original ZnO electrode, the photocurrent of the Ag/ZnO electrode increases from 0.101 to 0.171 mA cm −2 , and the light response increases from 379.9 to 720.8 μA W −1 . The inserted Ag layer changed the contact mode from Schottky to Ohmic contact, reducing the potential barrier of electron transport to the substrate. At the same time, due to the reflection of light by Ag layer, the absorbance of ZnO is increased. This simple combination helps to improve the detection performance of ZnO electrode and shows that this method can be used to prepare high-performance PEC photodetectors.
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高影响因子
SENSORS
·
2025
·Vol. 25
·期 9
·2936
·
IF 3.5
Binbin Zhang,Wenhui Zhang,Wei Luo,Zhijie Liang,Yan Hong,Jianhui Li,Guoyun Zhou,Wei He
This study investigated the impact of zinc oxide’s (ZnO’s) morphology on the piezoelectric performance of polyvinylidene fluoride (PVDF) composites for flexible sensors. Rod-like (NR) and sheet-like (NS) ZnO nanoparticles were synthesized via hydrothermal methods and incorporated into PVDF through direct ink writing (DIW). The structural analyses confirmed the successful formation of wurtzite ZnO and enhanced β-phase content in the PVDF/ZnO composites. At a degree of 15 wt% loading, the ZnO-NS nanoparticles achieved the highest β-phase fraction (81.3%) in PVDF due to their high specific surface area, facilitating dipole alignment and strain-induced crystallization. The optimized PVDF/ZnO-NS-15 sensor demonstrated superior piezoelectric outputs (4.75 V, 140 mV/N sensitivity) under a 27 N force, outperforming its ZnO-NR counterparts (3.84 V, 100 mV/N). The cyclic tests revealed exceptional durability (<5% signal attenuation after 1000 impacts) and a rapid response (<100 ms). The application trials validated their real-time motion-monitoring capabilities, including finger joint flexion detection. This work highlights the morphology-dependent interfacial polarization as a critical factor for high-performance flexible sensors, offering a scalable DIW-based strategy for wearable electronics.
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PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Wei Deng,Hai Zhang,Yingzheng Yin,Congwen Liu,Qing Liu,Jiajun Fang,Yushi Xie,Xiaoling Xu,Zuowan Zhou
Low-voltage electroporation offers a sustainable and energy-efficient approach for water disinfection. However, this technique faces significant challenges, including inefficient charge transport and inadequate stability of nanoarray-modified electrodes, which undermine both disinfection performance and system stability. In this study, we overcame these challenges by introducing iron-doped zinc oxide nanoarrays (Fe-ZnO NAs) and integrating them into a novel Non-contact Electrode System (NES). The Fe-ZnO NAs exhibited an enhanced conductivity due to the iron doping, which greatly improved their electroporation disinfection performance. At a low voltage of 1 V and a short contact time of 0.6 s, 3 wt% iron-doped ZnO nanoarrays (Fe3-ZnO NAs) electrodes achieved remarkable bacterial removal efficiencies of 6.20-log for Escherichia coli ( E. coli ) and 1.69-log for Staphylococcus aureus ( S. aureus ), compared with only 1.94-log and less than 0.10-log, respectively, for the undoped ZnO NAs electrodes. Furthermore, the Fe3-ZnO NAs electrodes demonstrated excellent operational stability, maintaining over 6.00-log removal efficiency for E. coli during 30 min of continuous operation. These results establish the transformative potential of Fe-ZnO NAs as a high-performance, low-energy electrode material, offering a practical and efficient solution for water disinfection in real-world applications.
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高影响因子
JOURNAL OF COORDINATION CHEMISTRY
·
2025
·
IF 2.1
Yanbing Yin,Chunxin Li,Zhou Wang,Yongming Feng,Bei Jiang,Yifei Li,Wei Yang
The nitrocopper phthalocyanine-loaded zinc oxide nanocomposites (CuTNPc/ZnO) were synthesized using the impregnated method. Subsequently, they were systematically characterized by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and N2 adsorption-desorption. The synthesized catalysts were applied to the photocatalytic degradation of methylene blue dye under visible light, and it was discovered that after 150 min of visible light exposure, the composite CuTNPc/ZnO-0.5 exhibited the best degradation. The synthesized CuTNPc/ZnO composites significantly enhanced the photocatalytic degradation of methylene blue with an efficiency of 88.97% compared to CuTNPc or ZnO, respectively. The synergistic effect of CuTNPc and ZnO improved the efficiency of light utilization. The catalytic activity of the central ions and the large specific surface area of the composites accelerated the charge transport and reduced the charge complexation. The potential of nanocomposites CuTNPc/ZnO-0.5 in the area of industrial waste dye degradation is thus confirmed by this investigation. A new strategy for photocatalytic degradation was provided by preparing ZnO-based composite catalysts.
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高影响因子
ACS Applied Bio Materials
·
2019
·
IF 0
Jiangying Zhu,Guohua Jiang,Gao Song,Tianqi Liu,Cong Cao,Yuhui Yang,Yajing Zhang,Wenjie Hong
Development of proper skin wound dressing is a vital step for wound repair, especially for those patients with serious skin injuries. Herein, zinc-doped bioactive glass (ZBG)/succinyl chitosan (SCS)/oxidized alginate (OAL) composite hydrogels (Gel-ZBG) have been developed as wound dressings to accelerate wound closure. Schiff-based linkages have been introduced into the composite hydrogels, which provide a humid microenvironment for the proliferation of cells on wound sites. The amino groups from SCS and Zn2+ released from ZBG exhibited excellent antibacterial properties to composite hydrogels, confirmed by the antibacterial tests in vitro. Si4+ and Ca2+ ions are essential factors that stimulate fibroblasts to secrete beneficial factors for angiogenesis and wound closure. The epidermal growth factor (EGF) was further embedded into the hydrogels to improve cell proliferation and tissue remodeling in the wound bed. Finally, the formation of granulation tissue, deposition of collagen and myofibril, the release of anti-inflammatory factors, and angiogenesis have been investigated to determine the healing mechanism of the composite hydrogels as the wound dressings.
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PubMed
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