MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
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2025
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IF 4.6
Shenglong Chen,Qiang Zhou,Xiaojing Liu,Hongyan Guan,Peng Dong,Hongman Hou,Gongliang Zhang,Jingran Bi,Shuang Yan,Hongshun Hao
In this study, a novel Z-scheme ZnO-AgCl-Ag photocatalyst was prepared by converting the metal-organic framework ZIF-8 to ZnO via a simple pyrolysis method and using a physical wet mixing method. The crystal structure, microstructure, elemental distribution, and photoelectrochemical properties of the catalyst were systematically characterized using various analytical techniques. The characterization results showed that the introduction of AgCl/Ag into ZnO exhibited a higher light absorption capacity as well as a lower transmission resistance. Photocatalytic degradation experiments showed that the ZA-3 sample achieved a 99.97 % degradation rate of 10 mg/L RhB in 24 min, which was 2.3 higher than that of ZIF-8-derived ZnO. In addition, we systematically investigated the effects of initial RhB concentration, solution pH, anion interference, and catalyst recycling cycle on the photocatalytic activity, demonstrating the stability and applicability of the composites under different conditions. In addition, radical trapping experiments were conducted to probe the photocatalytic reaction mechanism, and a Z-scheme charge transfer pathway was confirmed, in which photogenerated electrons were effectively separated and transferred at the Z-scheme heterojunction interface through the conductive channel of Ag nanoparticles as carriers, which significantly improved the photocatalytic activity. In this study, the advantages of MOFS were rationally and effectively utilized to design and prepare Z-scheme photocatalysts with UV–visible response.
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高影响因子
MACROMOLECULAR CHEMISTRY AND PHYSICS
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2024
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IF 2.5
Yiyin Yang,Lei Zhang,Fansen Meng,Donglin Tang
ZnO is considered to be a good catalyst for the synthesis of polyurethanes (PUs) by alcoholysis of bisureas (BUs). ZnO tends to form Zn(NCO) 2 (NH 3 ) 2 in the presence of urea at high temperature, so does it in the alcoholysis of BUs. Here, attempt is made to understand the role Zn(NCO) 2 (NH 3 ) 2 plays in the alcoholysis of BUs. A loading of Zn(NCO) 2 (NH 3 ) 2 at 5 mol% is found to be sufficient to catalyze the polymerization and the reaction time is greatly cut from 40 h (catalyzed by ZnO) to 26 h, with similar chemical structures and properties. The tensile strength, elongation at break, and toughness for PU–Zn-5 can reach 43.8 MPa, 330%, and 94.0 J cm −3 , respectively. One-pot synthetic strategy is then further introduced to improve the efficiency of the polymerization. Zn(NCO) 2 (NH 3 ) 2 , BU, and PU can be synthesized in one-pot, by adding ZnO, urea, diamine, LiBr, and diol sequentially. The feasibility of this one-pot method is verified, indicated by the similar reaction time, chemical structures, molecular weight, thermal and mechanical properties. This one-pot synthetic strategy offers an efficient way to synthesize PUs directly and simply from urea, diamines, and diols, which is beneficial for improving the molecular diversity of PUs.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Ruijie Ma,Tong Xue,Tianci Han,Chaoxia Wang,Yunjie Yin
Global energy demands and climate change challenges have highlighted the need for sustainable and energy-efficient solutions, driving interest in personal thermal management (PTM) technologies. Traditional PTM systems, however, rely on unidirectional thermal regulation, limiting their adaptability to fluctuating ambient conditions and humidity gradients. To overcome these limitations, we engineered a Janus Nano-ZnO/rGO nonwoven fabric (NZr@NF) that combines dynamic bidirectional thermal regulation with unidirectional sweat transport. The cooling side, featuring in situ grown Nano-ZnO layers, achieved high solar reflectance (88.49 %) and infrared emittance (94.20 %), allowing for net radiative cooling power of up to 100.38 W·m −2 . The heating side, functionalized with PDMS@rGO composites, demonstrated remarkable solar absorptance (94.86 %). Compared with the raw fabric, outdoor measurements demonstrated that it achieved an additional cooling effect of 6.27 °C and an additional heating effect of 17.1 °C. This Janus NZr@NF also excelled in moisture-wicking, achieving a cumulative one-way moisture transport index of 442.1 %, effectively mitigating post-sweat discomfort by facilitating evaporation and heat dissipation. With its ultraviolet (UV) resistance, breathability, and moisture permeability, this multifunctional metamaterial provides an innovative direction for wearable energy-saving PTM fabrics.
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ACS Sensors
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2024
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IF 8.2
Ying Li,Xiangyang Wei,Qingyuan Liu,Diming Zang,Rui You
The persistent challenge of poor recovery characteristics of NO2 sensors operated at room temperature remains significant. However, the development of In2O3-based gas sensing materials provides a promising approach to accelerate response and recovery for sub-ppm of NO2 detection at room temperature. Herein, we propose a simple two-step method to synthesize a one-dimensional (1D) In2O3@ZnO heterostructure material with hollow microtubes, by coupling metal–organic frameworks (MOFs) (MIL-68 (In)) and zinc ions. Meanwhile, the In2O3@ZnO composite-based gas sensor exhibits superior sensitivity performance to NO2 under visible light activation. The response value to 5 ppm of NO2 at room temperature is as high as 1800, which is 35 times higher than that of the pure In2O3-based sensor. Additionally, the gas sensor based on the In2O3@ZnO heterostructure demonstrates a significantly reduced response/recovery time of 30 s/67 s compared to the sensor based on pure In2O3 (74 s/235 s). The outstanding gas sensing properties of the In2O3@ZnO heterostructure-based sensors can be attributed to the enhanced photogenerated charge separation efficiency resulting from the heterostructure effect, and the improved receptor function toward NO2, which can increase the reactive sites and gas adsorption capacity. In summary, this work proposes a low-cost and efficient method to synthesize a 1D heterostructure material with microtube structures, which can serve as a fundamental technique for developing high-performance room-temperature gas sensors.
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PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
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2025
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IF 7.3
Jinxin Lan,Hai Huang,Changmei Lin,Shilin Cao,Xiaojuan Ma
Electrical stimulation is expected to achieve rapid sterilization and endow cotton textile (CT) with excellent antibacterial and antiviral properties. Here, the anchor-capture-nucleation in situ growth strategy was proposed to achieve stable deposition of a ZnO thin layer on CT for endowing the textile with rapid sterilization through self-power supply based on piezoelectric response. Due to the substantial loadings and prominent piezoelectric response of ZnO, the modified textile (ZZnO/CT) exhibits prominent antibacterial and antiviral properties within 2 min (E. coli: 97.22%, S. aureus: 93.01%, bacteriophage MS2: 98.46%). The cell membrane respiration was interfered with by electrical stimulation based on a piezoelectric response, causing intracellular ROS to accumulate and cell membranes to hyperpolarize. Moreover, the ideal platform for constructing prenucleation clusters to achieve thin layer deposition of ZnO was provided by the stable coordination between Zn2+ ions and hydroxyl groups (−OH) on CT, resulting in excellent durability of ZZnO/CT. More importantly, the introduction of ZnO could not affect the mechanical strength, air permeability, and moisture permeability of the CT. The modified textile is expected to achieve superior antibacterial and antiviral properties within a short time and has broad prospects in high-risk and hospital environments.
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APPLIED SURFACE SCIENCE
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2025
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IF 6.9
Xuan Xuan,Shuang Meng,Guozhe Sui,Ning Liu,Dongxuan Guo,Dantong Zhang,Xue Yang,Yue Li,Jinlong Li
The rational design of solid-solution-oxide heterostructure presents a promising pathway to synergize band structure engineering and interfacial charge dynamics in advanced photocatalysis. Herein, a novel S-scheme CeZnO/ZnO heterojunction was fabricated through solid-solution lattice engineering, where Ce-O-Zn covalent bonding networks are strategically constructed at phase boundaries via controlled exceedance of the Ce solubility limit in ZnO matrix. Coupled with Ag nanoparticle-induced localized surface plasmon resonance (LSPR), this hierarchical system achieves remarkable visible-light-driven tetracycline (TC) degradation (90.4 % within 60 min). The outstanding degradation performance can be attributed to the formation of a built-in electric field at the Ce-O-Zn interface, the presence of oxygen vacancies, and the synergistic catalytic effect of Ag nanoparticles. Density functional theory (DFT) calculations and experimental characterizations further reveal that the CeZnO/ZnO heterojunction facilitates S-scheme charge transfer via Ce-O-Zn bonds, improving charge transfer and separation efficiency while preserving the strong redox capability of photo-generated charge carriers. This study provides valuable insights into the design of high-performance heterojunction photocatalysts and carries significant implications for the development of photocatalysis.
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Food Bioscience
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2025
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IF 5.9
Yun-Lu Song,Jia-Lin Xing,Charles Ampomah-Dwamena,Shuai-Hui Ma,Mao-Song Pei,Han-Li Liu,Rui-Ping Feng,Yong-Ke Wu,Tong-Lu Wei,Hai-Nan Liu,Da-Long Guo
Grape seed extract (GSE) is a natural polyphenolic compound with potent antioxidant activity. We developed a composite preservation coating material by combining GSE with nano-zinc oxide (Nano-ZnO) and chitosan (CHI), two widely used agents in postharvest preservation. The CHI-GSE-Nano-ZnO coating effectively inhibited postharvest decay and berry abscission while delaying quality deterioration in grapes. Treatment with the composite coating enhanced the activities of antioxidant enzymes (SOD, POD, CAT, and APX) while reducing oxidative stress markers (O 2 - , H 2 O 2 , and malondialdehyde), thereby mitigating ROS accumulation to preserve postharvest grape quality. To elucidate the underlying mechanism, transcriptome sequencing was conducted on ‘Kyoho’ grape samples collected 3, 6, and 9 days post-treatment with CHI, CHI-GSE, and CHI-GSE-Nano-ZnO. Transcriptomic profiling revealed upregulation of VvSTS484 , a pivotal stilbene synthase (STS)-encoding gene, in the CHI-GSE-Nano-ZnO group. Promoter analysis identified multiple MYB-binding cis-elements in VvSTS484 . Yeast one-hybrid and transient dual-luciferase assays demonstrated that the transcription factor VvMYB714 directly binds to four specific MBS motifs in the VvSTS484 promoter (MBS1, -410 to -416 bp; MBS2, -1201 to -1207 bp; MBS3, -1554 to-1560 bp; and MBS4, -1906 to -1912 bp). This molecular interaction activated VvSTS484 expression, leading to enhanced resveratrol biosynthesis that peaked at day 9 post-treatment. The elevated resveratrol level in the CHI-GSE-Nano-ZnO group aligned with reduced oxidative stress and delayed quality deterioration, consistent with its established role in enhancing plant stress tolerance. In conclusion, the CH-GSE-Nano-ZnO composite coating inhibits postharvest decay via the MYB- pSTS module, providing a theoretical basis for developing natural product-based preservation technologies for fruit and vegetables.
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International Journal of Applied Ceramic Technology
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2025
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IF 2.3
Jintong Liu,Yifan Dong,Xin Qiu,Haoxuan Ma,Tianqin Li,Xinhong Liu,Quanli Jia
Unfired calcium aluminate cement (CAC) bonded alumina-spinel based plug precasts have many advantages including energy saving, shorter placement period, lower cost and good thermal shock resistance in comparison with fired purging plugs. Unfortunately, their strength was drastically decreased in the range of 700°C–1000°C, which was attributed to the destruction of the hydrates network of the castables, and structural spalling was also occurred because of their lower strength. To respond these, a feasible method to fabricate higher strength of unfired precast was proposed by adding ZnO powders, and the effect of the ZnO content on the microstructure and properties of the castables was studied in this paper. Results demonstrate that cold strength of the specimens after heat-treating at different temperatures increases significantly by rising of the ZnO level, permanent linear change of the castables after firing at 1400°C and 1600°C decreases, and hot strength value noticeably increases from 36.3 to 58.4 MPa, exhibited that cold and hot strength of CAC bonded castables significantly improve via adding ZnO powders. Strengthening mechanism on the strength of ZnO-bearing castables is ascribed to formation of ZnAl 2 O 4 and ZnCr 2 O 4 , and their strengthening effect is much higher than that of the weakening effect by CAC hydration products fired at 600°C–1000°C, and this strength reinforcing effect is intensified with rising of heat-treating temperature. In addition, ZnCr 2 O 4 and ZnAl 2 O 4 can dispense in MA spinel grains to form spinel solid solution at 1400°C–1600°C, (Al 1− x Cr x ) 2 O 3 solid solution is formed via Cr 2 O 3 reacts with Al 2 O 3 . Those favor the densification process of the matrix structure, creating strength reinforcing effect of the ZnO-containing castables, thereby significantly increase their strength.
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ANALYTICA CHIMICA ACTA
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2017
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IF 4.95
Anran Liu,Kaifei Yin,Li Mi,Mengyao Ma,Yuanjian Liu,Ying Li,Wei Wei,Yuanjian Zhang,Songqin Liu
Nucleoside diphosphatase kinase A (NDPK-A) is a metastasis-suppressor protein and a biomarker that act on a wide range cancer cells to inhibit the potential metastasis. Herein, we present a simple photoelectrochemical immunosensor based on ZnO nanorod arrays for the sensitive detection of NDPK-A. The ZnO nanorod arrays cosensitized with CdS nanoparticles and Mn 2+ displayed a high and stable photocurrent response under irradiation. After anti-NPDK-A nanobodies were immobilized to the ZnO nanorod arrays, the proposed immunosensor can be utilized for detecting NPDK-A by monitoring the changes in the photocurrent signals of the electrode resulting from immunoreaction. Accordingly, the well-designed immunosensor exhibited a low limit of detection (LOD) of 0.3 pg mL −1 and a wide linear range from 0.5 pg mL −1 to 10 μg mL −1 . The R 2 of the regression curve is 0.99782. Meanwhile, the good stability, reproducibility and specificity of the resulting photoelectrochemical biosensor are demonstrated. In addition, the presented work would offer a novel and simple approach for the detection of immunoreactions and provide new insights in popularizing the diagnosis of NPDK-A.
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PubMed
高影响因子
Materials Science and Engineering B-Advanced Functional Solid-State Materials
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2025
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IF 4.6
Jingjing Tian,Mengen Yan,Ran Xu,Jiayang Zhao,Luodan Wang,Weisong Zhang,Yan Guo,Heng Tian,Yonghao Xu
Polymer-based dielectric capacitors are considered as important energy storage components in the electronic devices and power system owing to their high power density, fast charge–discharge speed, and good reliability. However, the increment of leakage current density at elevated temperature and electric field significantly descends the breakdown strength ( E b ) and energy storage density, restricting their application in harsh environments. Herein, we selected ZnO and SnO 2 n-type semiconductors to construct nn-heterojunction ZnO-SnO 2 nanofibers and introduced them into PEI matrix to fabricate the ZnO-SnO 2 /PEI nanocomposite films via solution casting method. By constructing potential barrier at the interface of ZnO and SnO 2 , charge carrier can be captured and constrained in the potential barrier well during the process of carrier transport, effectively hindering the charge conduction in the nanocomposites, and thus suppressing the leakage current density and boosting the E b and energy storage density. As a consequence, nanocomposite film with 0.50 wt% nanofibers demonstrates high E b of 647 MV/m and large discharge energy density ( U d ) of 8.24J/cm 3 at 25 ℃. Even at 150 ℃, superior U d of 6.02 J/cm 3 , high charge–discharge efficiency ( η ) of 83.5 %, high E b of 593 MV/m are realized in the nanocomposite, which are significantly enhanced than that of pure PEI ( U d ∼ 1.98 J/cm 3 , η ∼ 57.5 %, E b ∼ 438 MV/m). The work provides a novel and feasible strategy for developing high-performance polymer-based dielectric capacitors at elevated temperature.
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SENSORS AND ACTUATORS B-CHEMICAL
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2019
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IF 6.393
Baoshan He,Xiaoze Dong
In this work, the feasibility of a novel sensitive electrochemistry aptasensor for the detection of patulin (PAT) using hierarchically porous metal organic [email protected] blue connection aptamer as signal tags was demonstrated. The substrate electrode of the aptasensor was prepared by electrodeposited gold nanoparticles (AuNPs) on chitosan-zinc oxide nano flower-modified electrode. Subsequently, the complementary single-stranded DNA was attached to the surface of the modified electrode by Au-S bond. Signal tags self-assemble on the surface of modified electrodes by aptamer-cDNA binding, while methylene blue as mediator for electrochemical detection. Thanks to the large specific surface area provided by zinc oxide nano flower, the electrode can load more signal tags and AuNPs to achieve signal amplification. In presence of PAT, Apt preferentially binds to PAT, causing dissociation of some Apt-cDNA and releasing some signal tags leading, resulting in decreased electrical signals. Under optimal conditions, the change in electrochemical signal was proportional to the logarithm of PAT concentration, from 5 × 10 −8 -5 × 10 -1 μg mL −1 , and the detection limit was estimated to be 1.46 × 10 -8 μg mL -1 . The aptasensor exhibited aceptable reproducibility, renewability, long-term stability and specificity. Moreover, aptasensor was reliable in determination of PAT in spiked apple juice samples.
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CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Xingyu Kang,Haibo Yu,Xiao Ma,Eryang Shang,Hong Chen,Huizhang Zhao,Jiawei Zhang,Rong Tan,Dong Wang,Hairui Fang
An efficient portable gas sensor was developed to meet the needs of air quality monitoring, for the detection of nitrogen dioxide (NO 2 ). In this study, coaxial electrospinning technology was used to synthesize porous nanofibers of indium oxide (In 2 O 3 ) composite zinc oxide (ZnO), which are recognized as special semiconductor ceramic materials. The best sample (NFs.1–6) consists of a nanoparticle-based structure with interconnected pores, in contrast to the more compact, tightly bonded nanofibers. This porous structure enhances gas adsorption capacity, improving the sensor’s performance. At 200 °C, the synthesized In 2 O 3 @ZnO (NFs.1–6) nanofibers exhibited a high response value of 171.25 and a fast response time of 5 s to 100 parts per million (ppm) NO 2 . The excellent characteristic is attributed to its uniform structure and n-n homojunction, making the response values 38 times and 98 times that of pure ZnO and pure In 2 O 3 , respectively. Building on the research findings, a smart mask was developed that incorporates the nanofiber sensor to monitor NO 2 concentrations in the air, offering an innovative approach to wearable gas sensor technology by semiconductor ceramic materials.
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