CERAMICS INTERNATIONAL
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2023
·Vol. 50
·期 5
·7798-7806
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IF 5.2
Tianyu Zhang,Rui Huang,Hongye Wang,Hua Hao,Zhonghua Yao,Hanxing Liu,Minghe Cao
A chemical coating method to form a core-shell structure was applied to produce ZnO@Ba 0.65 Bi 0.07 Sr 0.245 TiO 3 (ZnO@BBST) relaxing ferroelectric ceramics with high energy storage density. The ZnO@BBST ceramic grain was refined and the structure is dense. Simultaneously, the relaxor behavior of ZnO@BBST was improved due to the synergistic effect of ZnO shell and internal BBST. Ultimately, under the electric field of 320 kV/cm, a energy storage density of 1.91 J/cm 3 and an energy storage efficiency of 82 % are obtained in 2 wt% ZnO@BBST, together with fast discharge characteristics(τ 0.9 <1.25 μs) and excellent cycle stability (up to 1 × 10 5 times). ZnO@BBST ceramics have its unique advantages in the field of ceramic capacitors .
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IONICS
·
2019
·Vol. 26
·期 1
·263-272
·
IF 2.289
Luo X. Y.,Meng B.,Xia Z. D.,Chen Q. B.,Dong D. Z.,Zhao M. Y.
In order to investigate the effects of Na 2 CO 3 /ZnO co-addition on the sinterability and electrical conductivity of BaZr 0.1 Ce 0.7 Y 0.1 Sc 0.1 O 3-δ (BZCYSc) ceramic, Na 2 CO 3 and ZnO were added and BZCYSc/ZnO/Na 2 CO 3 ceramic was prepared by mechanical ball milling and high-temperature sintering in air. The crystalline structure, micro-morphology, chemical composition, density, and electrical conductivity of the sintered ceramics were characterized by XRD, SEM, EDS, Archimedes method, and electrochemical impedance spectrum, respectively. The grains size of BZCYSc-2%ZnO-5%Na 2 CO 3 is about 2.5~5 μm. Na 2 CO 3 /ZnO co-addition is beneficial to improve the sinterability and electrical conductivity of BZCYSc. The sintering temperature of BZCYSc can be lowered from 1550 to 1350 °C when 2 mol%ZnO is added. At 550 °C, the electrical conductivities of BZCYSc-2%ZnO-10%Na 2 CO 3 and BZCYSc are 1.90 × 10 −3 S/cm and 1.81 × 10 −3 S/cm. The activation energies of BZCYSc and BZCYSc-2%ZnO-10%Na 2 CO 3 are 0.7529 eV and 0.5641 eV, respectively.
研究领域:
材料科学
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无机非金属材料
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固态离子学
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能源材料
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陶瓷工程
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APPLIED SURFACE SCIENCE
·
2018
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IF 4.439
Deshan Cheng,Mantang He,Wenbin Li,Jihong Wu,Jianhua Ran,Guangming Cai,Xin Wang
Growing of ZnO nanoparticles on PET films without crystal seeding has been achieved by employing polydopamine as the anchor. The PDA layer was formed on the surface of PET film by the polymerization of dopamine. The PDA-PET was dipped into zinc precursors for hydrothermal growth of ZnO nanoparticles. Cluster-like ZnO nanoparticles were obtained and the special structure was affected by the growing time and zinc ion concentration. The surface morphology, structure and properties were characterized, and the functions including antimicrobial activity and UV protection of the ZnO-coated PET film were investigated. The developed facile hydrothermal approach without seeding will benefit the development of UV resistant and antimicrobial PET films.
研究领域:
材料科学
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纳米技术
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表面功能化
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生物医用材料
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高分子材料
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RENEWABLE ENERGY
·
2026
·
IF 9.1
Jiahao Li,Abdulaziz Alasiri,Ali Omer,Xiong Zheng
Nanofluids incorporating metal nanoparticles hold considerable promise for optimizing spectral beam splitting in photovoltaic/thermal (PV/T) systems, but conventional metal based nanofluids suffer from poor stability and high cost. This study introduces highly stable ATO-ZnO hybrid nanofluids as a novel SBS for PV/T systems, resolving critical limitations of conventional metal-based nanofluids. Leveraging complementary optical properties—ZnO's exceptional ultraviolet (UV) absorption via direct bandgap transitions and ATO's strong IR harvesting through plasmonic resonance—the hybrid nanofluid exhibits enhanced optical transmittance (650–1050 nm) within the photovoltaic response band, while demonstrating strong absorption across other spectral regions.. The nanofluids demonstrate outstanding long-term stability. In PV/T testing, the hybrid system sets a new benchmark with 13.59% electrical efficiency and 57.69% thermal efficiency, achieving a merit function of 1.692 - substantially higher than values reported for metallic nanofluid SBSs in prior studies. Performance superiority originates from quantum-enhanced UV absorption and synergistic heat localization. Synthesized via scalable aqueous processing at low material cost, this technology establishes a new paradigm for solar energy utilization through simultaneous optimization of optical efficiency, thermal stability, and economic viability.
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TURKISH JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 2
·542-549
·
IF 1.151
MA XIANGMEI,DONG ZHEHAO,WANG BIN,LIU LIMIN,YE RUOJUN
The uses of inorganic metal oxide as ultraviolet (UV) absorbers have potential to increase the production of UV protection and can also overcome the disadvantages of organic molecules. In this article, we report an effective technique to fabricating polyvinyl chloride (PVC) films with well UV shielding efficiency. Surface modification of zinc oxide (ZnO) nanoparticles (NPs) with different silane coupling-agents were achieved, and through solution casting technique dispersed within the PVC matrix. Infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and UV spectrophotometer were applied to study the structures, dispersions, and optical properties. The results showed that the functionalized ZnO NPs could be well dispersed in PVC and endow the polymer composite films with significantly improved anti-UV capability. The facile processing and obtained properties of PVC composites have shown potential for low cost and environmentally sustainable applications in the UV protection field.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Huanming Wang,Jinqiao Hou,Chong Li,Xinge Cui,Chenze Lu,Fujian Ren,Chen Fu,Jingting Luo,Ran Tao
Non-invasive monitoring of exhaled isopropanol (IPA) is a promising route for diabetes management. However, current analytical methods are limited by inadequate sensitivity, low selectivity, and slow response times. In this work, we report a high-performance surface acoustic wave (SAW) gas sensor engineered with Pt-doped ZnO nanoparticle films synthesized via hydrothermal growth and spin-coating. The sensitive layer is optimized with 0.5 wt% Pt doping level, which enhances the specific surface area and pore structure uniformity. At room temperature (25°C), the sensor demonstrates exceptional performance, featuring highly selective IPA detection with a sensitivity of 6.76 Hz/ppm, fast response/recovery times of 12 s/12 s, a low detection limit of 1.38 ppm, and excellent reproducibility over 30 days of operation. Mechanistic studies confirm that the high selectivity is governed by a Pt-O coordination effect that facilitates preferential IPA adsorption. This work presents a robust and practical platform for diabetes monitoring and provides a clear strategy for the rational design of next-generation metal oxide-based gas sensors.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Lijun Wu,Jiacheng Li,Tian Liang,Jian Liu,Qingfa Zhang,Lu Wang
The development of hydrogel dressings that exhibit excellent moisturizing, antibacterial, and pro-healing properties is an urgent need in the field of wound healing. This study designs a multifunctional hydrogel dressing (QCPVA-ZnO) to address this challenge by incorporating a quaternized nanocellulose‑zinc oxide hybrid (QCNC-ZnO) into a polyvinyl alcohol/chitosan matrix. QCPVA-ZnO exhibited excellent moisture retention and breathability, with a water vapor transmission rate of 2440 g·m −2 ·day −1 and an oxygen permeability rate of 111 g·mm/m 2 ·day·kPa, which could be attributed to the synergistic effect of its porous structure and hydrophilic cross-linked network. The experiment of the full-thickness skin defect model in mice showed that QCPVA-ZnO had significant healing promoting ability, with a wound healing rate of 97.6% by day 11. This can be attributed to QCNC-ZnO endowing QCPVA-ZnO with a good bactericidal rate of 99%, which thereby enabled the latter to effectively control infections, reduce inflammatory reactions, and further promote angiogenesis and epidermal regeneration. In addition, biosafety evaluations indicated that QCPVA-ZnO had a cell survival rate of over 90% and hemolysis of less than 2%, demonstrating good biocompatibility. This study improves the moisturizing, air permeability, antibacterial and healing promoting functions of the hydrogel, providing a new idea for the development of multi-functional wound dressings.
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JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2026
·
IF 16.8
Junpeng Fan,Zhijun Wu,Quan Nie,Lintao Nie,Fangchang Tan,Chunyan Wu,Ming Deng,Hailing Sun,Guofu Zhou,Lei Qian,Ting Zhang,Chaoyu Xiang
In-situ photo-patterning of ZnO was successfully achieved at room temperature. • QLEDs utilizing photolithographic ZnO as the ETL demonstrated superior performance. • The positive-aging effect was significantly alleviated by using photolithographic ZnO. • ZnO patterns were utilized to construct carrier transport channels in pixelated QLEDs. Benefiting from the adjustable emission spectrum, high color purity, wide gamut, and solution-processability, quantum dot light-emitting diode (QLED) is considered one of the most promising next-generation display technologies. As a prevalent electron transport material, ZnO plays a crucial role in enhancing the efficiency and long-term stability of QLED devices. To promote the development of high-resolution QLED displays, this study proposes a dual-functional surface engineering strategy for achieving in-situ photo-patternable ZnO with enhanced electrical properties. Physicochemical characterization revealed that surface defects of ZnO were significantly reduced via direct photolithography, thereby decreasing non-radiative exciton recombination at the QD/ZnO interface. Particularly, the red QLED devices based on photolithographic ZnO exhibited remarkable performance, achieving a peak external quantum efficiency (EQE) of 23.5%, a brightness of over 140,000 cd m −2 at 5 V, and an alleviated positive-aging effect (i.e., anomalous brightness increase). Concurrently, the operational lifetime T 95 (the time for the device luminance to drop to 95%) was also improved from 1,036 h to 2,084 h. Furthermore, by modulating the morphology of ZnO films, we successfully fabricated pixelated QLED devices, laying the technical foundation for commercializing high-resolution QLED displays. Download: Download high-res image (394KB) Download: Download full-size image
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Min Gao,Xiao Yang,Weiya Jia,Linxin Liu,Guihua Lu,Lai Wei,Bei Zhang,Can Li,Feng Zhao
Surface-enhanced Raman spectroscopy (SERS) has attracted considerable attention owing to its high sensitivity, long-term stability, and non-destructive detection capabilities. However, achieving both high sensitivity and reproducible signal output within a single SERS substrate remains a significant challenge in recent years. In this study, a highly sensitive and reproducible SERS substrate was successfully designed and fabricated based on Ag/ZnO spherical shell ordered arrays, leveraging the synergistic effects of localized surface plasmon resonance and charge transfer mechanisms, both of which contribute effectively to Raman signal enhancement. The SERS performance of the substrate depended on the thickness of the ZnO layer, with a maximum enhancement factor of 2.68 × 10 8 achieved using a 30 nm ZnO layer and rhodamine 6 G as the probe molecule. A detection limit as low as 10 −9 M was attained while maintaining a relative standard deviation below 6%. This exceptional performance arises from the synergistic contribution of the intense localized electromagnetic field generated by the spherical-shell architecture and the efficient charge transfer pathways enabled by the multifunctional Ag/ZnO bilayer structure. This work presents a promising strategy for the development of recyclable and ultra-sensitive SERS sensors applicable to biomolecular detection and organic pollutant monitoring. Download: Download high-res image (158KB) Download: Download full-size image
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Yizhe Wang,Ye Yuan,Siyue Li,Peiyuan Zuo,Xiaoyun Liu,Qixin Zhuang
The dielectric–magnetic synergy and interfacial engineering is an important methodology to boost electromagnetic wave absorption performance. We herein propose a novel “coating-ion exchange etching-high temperature carbonization” process to synthesize yolk–shell zinc oxide/carbon@air@cobalt-nickel alloy (ZnO/C@air@CoNi) nanocages by taking advantages of dielectric–magnetic synergy and interfacial effect. The bimetallic core–shell ZIF-8@ZIF-67 precursor is employed as the structural template while Ni(NO₃)₂·6H₂O as an etchant to ensure controlled ion-exchange etching. The resulting dielectric zinc oxide/carbon (ZnO/C) core promotes interfacial polarization and dipole reorientation losses, while the CoNi shell enhances conductive loss and magnetic loss. Thanks to the dielectric–magnetic synergy and interfacial effect, the ZnO/C@air@CoNi nanocomposite exhibits outstanding electromagnetic wave absorption performance, achieving a maximum reflection loss of −72.28 dB and an effective absorption bandwidth of 5.28 GHz (12.40 −17.68 GHz) at a low filler loading of 20 wt%. This work provides new ideas to design absorbers by leveraging the structural versatility of MOF-derived precursors.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Ziyang Niu,Zijun Huang,Peng Wang,Xiuquan Gu,Yulong Zhao
All-inorganic perovskite CsPbBr 3 nanocrystals (NCs) are promising for wide-color-gamut displays due to their high photoluminescence quantum yield (PLQY) and narrow emission bandwidth, yet their ionic nature renders them susceptible to degradation by moisture, heat, and mechanical stress, while surface defects induce non-radiative recombination. Herein, we propose a synergistic protection strategy combining ZnO inorganic modification with EPDM flexible polymer encapsulation. A ZnO heterojunction is constructed in situ on CsPbBr 3 NCs via a solution method, after which the modified NCs are dispersed in an EPDM matrix to fabricate flexible composite films. Structural and optical characterizations confirm that ZnO modification effectively suppresses non-radiative recombination, prolonging the average photoluminescence (PL) lifetime to 14.54 ns. XPS and DFT calculations reveal strong interfacial chemical interactions between CsPbBr 3 and ZnO, with an adsorption energy of −1.923 eV, suggesting effective surface-defect passivation. Stability tests demonstrate that after 6 days of water immersion, heating at 90 °C for 60 min, 200% mechanical stretching, and 100 h of UV irradiation, the composite retains 65%, 60%, and 80% of its initial PL intensity, respectively, showing substantially improved multidimensional stability. A white light-emitting diode fabricated using the film exhibits CIE chromaticity coordinates of (0.34, 0.32) and color gamut coverages of 121.2% NTSC and 98.2% Rec. 2020. This strategy simultaneously addresses defect passivation and environmental instability in perovskites, offering a feasible route towards commercial perovskite-based optoelectronic devices.
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Food Packaging and Shelf Life
·
2026
·
IF 10.8
Jie Yao,Mengran Zhang,Guohua Zhao,Damao Wang
A bioactive and biodegradable packaging film was fabricated via a solvent-casting method using poly(vinyl alcohol) (PVA) reinforced with alkaline–peroxide treated brewers’ spent grain (BSG-M) and zinc oxide nanoparticles (ZnO-NPs). Alkaline–peroxide treatment was applied to BSG, which is reported to disrupt lignin–carbohydrate associations and promote microfibrillation, yielding a modified lignocellulosic filler containing residual proteins that dispersed uniformly within the PVA matrix, thereby enhancing the tensile performance and soil degradability of the composite films. The incorporation of an optimal ZnO loading (2–3 wt%) facilitated the formation of dense hydrogen-bond networks and increased the tortuosity of the diffusion path. Consequently, the composite films exhibited a UV-B blocking efficiency exceeding 96%, antibacterial inhibition rates up to ∼100% (depending on ZnO loading) against Escherichia coli and Staphylococcus aureus , and a moderate DPPH-radical scavenging activity (approximately 20%). Specifically, the PBZ-3 film (containing 3 wt% ZnO) significantly enhanced the preservation of strawberries during 8 days of storage at 4 °C. Compared with commercial polyethylene (PE) packaging, the PBZ-3 film minimized weight loss to 12.84% and provided superior vitamin C retention and improved visual quality, while maintaining the critical advantage of biodegradability. Furthermore, soil burial tests demonstrated a 54% mass loss within 30 days, confirming a favorable balance between functional performance and biodegradability. These results indicate that the PVA/BSG/ZnO ternary composite film is a promising biodegradable active packaging material with moisture-barrier, UV-shielding, antibacterial, and extract-based antioxidant functions for fresh produce.
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