ACS Applied Materials & Interfaces
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2013
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IF 5.008
Qianwei Ding,Yue-E Miao,Tianxi Liu
A simple and efficient method has been developed for preparing hierarchical nanostructures of polyimide (PI)/ZnO fibers by combining electrospinning and direct ion-exchange process. Poly(amic acid) (PAA) nanofibers are first prepared by electrospinning, and then, the electrospun PAA fibers are immersed into ZnCl2 solution. After a subsequent thermal treatment, imidization of PAA and formation of ZnO nanoparticles can be simultaneously achieved in one step to obtain PI/ZnO composite fibers. SEM images show that ZnO nanoparticles are densely and uniformly immobilized on the surface of electrospun PI fibers. Furthermore, the morphology of ZnO can be tuned from nanoplatelets to nanorods by changing the initial concentration of ZnCl2 solution. Photocatalytic degradation tests show an efficient degradation ability of PI/ZnO composite membranes toward organic dyes. Meanwhile, the free-standing membrane is highly flexible, easy to handle, and easy to retrieve, which enables its use in water treatment. This simple and inexpensive approach can also be applied to fabricating other hierarchically nanostructured composites.
研究领域:
材料科学
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纳米技术
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环境工程
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高分子科学
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光催化
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高影响因子
CELLULOSE
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2026
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IF 4.8
Mo Yuhan,Hong Guolong,Chen Linbi,Yu Fangbing,Fei Mingen,Lin Huiping,Chen Ying,Li Ran,Yang Wenbin
Bamboo scrimber, as a sustainable engineered composite material, faces challenges in interfacial adhesion and mildew resistance due to the hydrophobic surface of bamboo bark/inner skin and its nutrient-rich composition (e.g., starch and other saccharides). Atmospheric plasma, through high-energy particles, can activate the bamboo surface by grafting oxygen-containing functional groups and inducing micro-roughness. This study proposes a novel strategy combining atmospheric plasma treatment with in situ zinc oxide nanoparticle deposition to simultaneously enhance interfacial bonding and anti-mold performance. The plasma-driven pyrolysis of zinc acetate precursor generates zinc oxide nanoparticles in situ, imparting mildew resistance to the material. Concurrently, this modification promotes deep penetration and uniform spreading of phenolic resin, forming a continuous bonding layer and mechanically interlocked "glue nail" structure at the bamboo-resin interface. The optimized composite exhibited a 13.7% increase in modulus of rupture (MOR), a 24.9% increase in modulus of elasticity (MOE), and a 107% increase in surface free energy. The inhibition rates against Aspergillus niger and Penicillium purpurogenum exceeded 90%, while the inhibition rate against Trichoderma viride reached 75%. This green and efficient one-step approach fully utilizes bamboo bark, significantly improving interfacial strength and mildew resistance, offering new insights for the interface engineering of natural fiber composites.
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RENEWABLE ENERGY
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2026
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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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高影响因子
TURKISH JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 2
·542-549
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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
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2026
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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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高影响因子
Solar RRL
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2026
·Vol. 10
·期 9
·e70362
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IF 4.8
Yingjun Zhou,Chuanhe Ma,Shulei Liang,Yujun Li,Hailong Wang
In Cu 2 ZnSn(S, Se) 4 (CZTSSe) solar cells, the conventional magnetron-sputtered ZnO (ZnO-SP) suffers from high cost, low efficiency, and interface damage. This study systematically compares sol–gel ZnO (ZnO-SG) and 18C6 crown ether-modified sol–gel ZnO (ZnO-SG-18C6) as interfacial layers. X-ray diffraction (XRD), scanning electron microscope (SEM), AFM, and X-ray photoelectron spectroscopy (XPS) show ZnO-SP has a uniform hexagonal wurtzite structure, whereas ZnO-SG displays an amorphous fibrous morphology with bright/dark striations. Both exhibit similar UV absorption peaks, but ZnO-SG shows broader absorption and double-exponential decay. Density–voltage ( J – V ) tests reveal that ZnO-SG-18C6 increases PCE from 8.5% to 10.6%, surpassing the 9.5% achieved with ZnO-SP. Electrochemical impedance spectroscopy (EIS) analysis shows that the ZnO-SG-18C6 layer reduces carrier recombination, with the charge transfer resistance ( R ct ) increasing by 30%. Transient photocurrent measurements further reveal that it enhances the photocurrent response, achieving a 1.8-fold increase in the peak, which rises to four times under a 70% high duty cycle.This work demonstrates ZnO-SG-18C6 as a low-cost, high-efficiency alternative to ZnO-SP in CZTSSe solar cells.
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SENSORS AND ACTUATORS A-PHYSICAL
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2026
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IF 5.1
Yuhan Luo,Chen Yang,Jiang Zhao
Dual-functional ZnO/LIG sensor made via 1-step laser direct writing. • Combines sensitive NTC temperature sensing and efficient Joule heating. • Exhibits high sensing linearity (R 2 = 0.9988) and max TCR of −3.65%. • Rapid heating rate of 2.68 °C s −1 at 24 V with electrothermal stability. • Zigzag design enables high bending durability and multi-site monitoring. Traditional flexible temperature sensors and heaters often suffer from discrete architectures, delayed thermal responses, and poor stability. To address these limitations, a zigzag-patterned dual-function ZnO/LIG sensor featuring independently operable temperature sensing and Joule heating functions is fabricated via one-step laser direct writing on a ZnCl 2 -doped polyimide (PI) film. This induces the in-situ growth of ZnO nanoparticles within a three-dimensional LIG scaffold, constructing a hierarchical porous structure that enhances electron transport and interfacial heat transfer. Fundamentally, first-principles DFT calculations verify strong interfacial orbital hybridization, which modulates carrier behaviors and significantly improves thermoresistive responses. Consequently, the device demonstrates stable negative temperature coefficient (NTC) characteristics (20–80 °C) with excellent linearity (R 2 =0.9964), a total relative resistance change of −3.65%, and an average temperature coefficient of resistance (TCR) of −0.061 °C −1 . It simultaneously exhibits efficient Joule heating, achieving 2.68 °C s⁻¹ at 24 V with stable temperature elevation during stepwise cycling. The zigzag electrode architecture effectively releases deformation stress, ensuring reliable baseline resistance without significant degradation after repeated bending cycles. Ultimately, this synergistic optimization accurately captures minute variations for precise body temperature mapping, respiration monitoring, and rapid deicing, providing a cost-effective, scalable strategy for flexible thermal-control equipment. Download: Download high-res image (233KB) Download: Download full-size image
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
·
IF 19.7
Fangfang Wang,Zhaojun Min,Haohai Wang,Xiaoxiao Wang,Lingmin Wu,Tongtong Li,Dalai Jin,Xianming Zhang,Jianji Wang,Wenxing Chen
Metal migration strategy construct oxygen-bridged Zn-SAC/ZnO sub-nanocluster catalyst. • Catalyst attains full PET conversion, 90.7% BHET yield and high Zn space-time yield. • N-anchoring endows catalyst maintains 91.7% initial activity after multiple cycles. • The catalyst shows a wide applicability to diverse waste PET. • DRIFTS and DFT reveal atomic-level synergistic activation at Zn-SAC-cluster interface. Designing and constructing multi-site, highly active and stable heterogeneous glycolysis catalysts to convert polyethylene terephthalate (PET) into monomers is an important strategy for achieving sustainable plastic closed-loop recycling. Herein, we prepared an oxygen-bridged Zn single-atom and ZnO sub-nanocluster catalyst by “metal atoms surface migration strategy”. The optimized catalyst achieves nearly 100% PET conversion and bis (hydroxyethyl)terephthalate (BHET) yield of above 90.7% within 1.5 h, with its Zn active sites delivering a BHET space-time yield of 198.9 mmol BHET g Zn −1 h −1 . Owing to the robust anchoring by N-dopants, the catalyst retains 91.7% of its initial activity after multiple cycles. In-situ infrared and density functional theory (DFT) calculations revealed that the excellent catalytic performance of the catalyst is attributed to the synergistic effect of Zn single-atom and oxygen-bridged ZnO sub-nanocluster, which jointly promote the dual activation of the ethylene glycol hydroxyl group and the PET ester bond. This work emphasizes an atomic-scale engineering approach to maximize the density, accessibility, and stability of active sites, offering a viable idea for efficient plastic chemical recycling. Download: Download high-res image (153KB) Download: Download full-size image The Zn atoms coordinated within ZIF-8 were vaporized and migrated to the nitrogen-doped carbon carriers surface by the “metal atom surface migration strategy” to prepare a catalyst with oxygen-bridged Zn single-atom and ZnO sub-nanocluster structure, which promoted the dual activation of the ethylene glycol hydroxyl and PET ester group, achieving 100% PET depolymerization and 90.7% BHET yield.
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高影响因子
Food Packaging and Shelf Life
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2026
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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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Nanomaterials
·
2023
·Vol. 13
·期 5
·917
·
IF 5.3
Donglin Li,Junfeng Lu,Xuanji Zhang,Dingfeng Jin,Hongxiao Jin
Nanoscale heterostructured zinc oxide/reduced graphene oxide (ZnO/rGO) materials with p–n heterojunctions exhibit excellent low temperature NO2gas sensing performance, but their doping ratio modulated sensing properties remain poorly understood. Herein, ZnO nanoparticles were loaded with 0.1~4% rGO by a facile hydrothermal method and evaluated as NO2gas chemiresistor. We have the following key findings. First, ZnO/rGO manifests doping ratio-dependent sensing type switching. Increasing the rGO concentration changes the type of ZnO/rGO conductivity from n-type (<0.6% rGO) to mixed n/p -type (0.6~1.4% rGO) and finally to p-type (>1.4% rGO). Second, interestingly, different sensing regions exhibit different sensing characteristics. In the n-type NO2gas sensing region, all the sensors exhibit the maximum gas response at the optimum working temperature. Among them, the sensor that shows the maximum gas response exhibits a minimum optimum working temperature. In the mixed n/p-type region, the material displays abnormal reversal from n- to p-type sensing transitions as a function of the doping ratio, NO2concentration and working temperature. In the p-type gas sensing region, the response decreases with increasing rGO ratio and working temperature. Third, we derive a conduction path model that shows how the sensing type switches in ZnO/rGO. We also find that p–n heterojunction ratio (np–n/nrGO) plays a key role in the optimal response condition. The model is supported by UV-vis experimental data. The approach presented in this work can be extended to other p–n heterostructures and the insights will benefit the design of more efficient chemiresistive gas sensors.Keywords:p–n junctions;ZnO;reduced graphene oxide;rGO;NO2sensing
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PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2023
·
IF 5.2
Shuo Shi,Mingmin Jia,Meisheng Li,Shouyong Zhou,Yijiang Zhao,Jing Zhong,Dingliang Dai,Jianhao Qiu
Zinc oxide–Graphitic carbon nitride (ZnO@g-C 3 N 4 ) composite membranes were prepared via in-situ growing ZnO crystals in the g-C 3 N 4 membrane. In this composite membrane, ZnO crystals were embedded in loose surface layers of g-C 3 N 4 membrane, which can repair some non-selective defects and improve the dye retention performance. In addition, the hetero-structures formed between ZnO and g-C 3 N 4 nanosheets promoted the separation of photogenerated electron-holes in g-C 3 N 4 layer, and improving the photocatalytic and anti-fouling performance of ZnO@g-C 3 N 4 composite membranes. Herein, the prepared composite membranes showed excellent dye removal performance and self-cleaning property in dynamic recirculation filtration systems under visible light irradiation. The optimized sample (CNZ-0.15 g) showed MB removal efficiency of 94.4% and water flux of 336.8 L.m −2 .bar −1 .h −1 . The outcome of this research would suggest the application of graphitic nitride nanomaterials for developing highly efficient photocatalytic membranes.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2023
·
IF 6.2
Tao Wei,Wei Li,Jie Zhang,Xiaoling Xie
Forming nanocomposites among different metal oxide species may lead to gas sensors with superior gas sensing properties. In this work, terbium oxide (Tb 2 O 3 ) was used to form composite nanofibers with zinc oxide (ZnO) to detect nitric oxide (NO) gas. The Tb 2 O 3 /ZnO composite nanofibers were synthesized through a facile electrospinning and annealing treatment. The heterostructure was investigated by various techniques such as XRD , SEM, TEM , and XPS , whereas the gas sensing performance of the composite nanofibers was investigated with a static gas testing system. Results showed that the Tb 2 O 3 /ZnO composite nanofiber exhibited excellent sensing performance to NO at 180 °C. Specifically, the composite nanofiber with [Tb]/[Zn] molar ratio of 0.01 had a high response of 28.3 (resistance ratio) to 1 ppm NO gas at 180 °C, with low response to other interference gases. The sensor also exhibited good repeatability and long-term stability. These remarkable sensing properties indicate that conventional ZnO is still promising for real applications via material composition and structure.
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