POLYMER COMPOSITES
·
2025
·
IF 4.7
Yujing Li,Yongke Tan,Weibo Zhou,Zhengchuan Hu,Yuhui Ao,Ming Li
With the rapid development of communication and electronic devices, it is desirable for carbon fiber (CF) reinforced composites exhibiting good mechanical properties and electromagnetic shielding performance simultaneously. Graphene oxide (GO)/ZnO/DSPE heterogeneous structure has been designed and prepared for enhancing mechanical strength and electromagnetic shielding properties of carbon fiber reinforced plastics (CFRP). Zinc oxide nanowires (ZnO NWs) uniformly, firmly, and vertically aligned on the surface of CF assisted by GO and polymer film phospholipid-polyethylene glycol (DSPE). The flexural strength (945.3 MPa), flexural modulus (75.5 GPa) and interlamellar shear strength (92.9 MPa) of the modified composite were increased by 71.8%, 90.2%, and 93.5%, respectively, compared with the untreated composites. Moreover, the CF composite also showed a strong electromagnetic absorption capacity; its electromagnetic shielding efficiency reached 42.89 dB, compared to the original fiber composite, increased by 65.40%. The enhancement could be attributed to a more conductive path in the composites originating from GO nanosheet and DSPE, effective reflection of vertical alignment ZnO on CF.
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Scientific Reports
·
2025
·Vol. 15
·期 1
·1-16
·
IF 3.9
Dong Yuqi,Qiao Qing-an,Wang Ruping,Yang Yueyue,Cai Honglan,Gao Hongwei
Environmental pollution caused by industrial waste is an increasing concern, and the design and development of efficient photocatalysts offer promising approaches to address this issue. A series of novel Zn 0.6 Cd 0.4 S/ZnO/g-C 3 N 4 composites were prepared through a calcination‒hydrothermal method. Under visible light, these materials demonstrated exceptional performance in the photodegradation of methylene blue (MB), rhodamine B (RhB), and tetracycline (TC). Among the composite materials, Z 0.6 C 0.4 S/ZnO/CN-35% exhibited the highest degradation efficiencies for MB (98.52%), RhB (99.45%), and TC (98.20%), demonstrating excellent reusability as well. The photocatalytic performance of the catalysts was assessed across various water sources and different pH conditions. The findings revealed that the degradation efficiency for contaminants in seawater, lake water, and tap water closely mirrored that observed in deionized water, suggesting wide adaptability among different aqueous solutions. The exceptional photocatalytic performance of the composite materials can be attributed primarily to the efficient separation and migration of holes (h + ) and electrons (e − ) via well-contacted interfaces. Free radical capture experiments confirmed that hydroxyl radicals (·OH) and superoxide ion radicals (·O 2 - ) play crucial roles in the reaction process. The photocatalytic mechanism was also revealed via density functional theory (DFT) calculations. This work introduced an innovative strategy to design and fabricate novel photocatalysts, emphasizing their extensive applications from both theoretical and experimental aspects.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2021
·
IF 5.816
Tingting Yu,Qingsong Liu,Guang Chen,Lifen Liu,Jinlong Zhang,Changfei Gao,Tao Yang
A novel heterostructure of g-C 3 N 4 /ZnO/Bi 4 O 5 Br 2 (ZB-3) was designed, and used in the microbial coupled photocatalytic fuel cell (MPFC). It can effectively improve electron utilization efficiency and pollutant degradation using this double Z-scheme heterojunction structure . The current–time ( I – t ) curves demonstrated that the current density of ZB-3 was higher than that of ZnO, ZnO/Bi 4 O 5 Br 2 (ZB-1), g-C 3 N 4 /ZnO (ZB-2). Electrochemical impedance spectroscopy (EIS) indicated ZB-3 possessed the minimum charge-transfer resistance. This MPFC for degrading rhodamine B (RhB) and tetracycline (TC) under different conditions were developed using these materials. Even in the dark condition, MPFC with g-C 3 N 4 /ZnO/Bi 4 O 5 Br 2 demonstrated 93% and 82% degradation efficiency for RhB and TC, respectively. Furthermore, the electron transport mechanism of the MPFC and ZB-3 were proposed. It paves the approach for more efficient pollutant degradation via MFC photocatalysis .
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Qilong Zhang,Yajun Wang,Tursun Abdiryim,Ruxangul Jamal,Feng Xu,Yiming Liu,Jixuan Sun,Guangning Song,Yiwu Zhu
Advancements in wearable electronics have driven demand for flexible, self-powered UV photodetectors, yet the efficient separation and transport of carriers remain critical challenges to realizing their full potential. This study constructs a high-performance flexible self-powered UV detector based on an electrochemically doped Bi-ZnO nanoflowers/PEDOT-CH 2 OH p-n heterojunction, further modified with a Co(IO 3 ) 2 layer. Bi 3+ doping introduces oxygen vacancies to enhance carrier separation, synergizing with the built-in electric field within the heterojunction. The spontaneous polarization of Co(IO 3 ) 2 enhances this electric field, optimizing band alignment and suppressing recombination, while hydroxyl groups in PEDOT-CH 2 OH stabilize the oxygen vacancies. The piezoelectric response of ZnO is not prominent in this device, as its modulating effect is overshadowed by the dominant charge separation mechanism based on doping and interfacial polarization. Through synergistic bandgap engineering, defect control, and interface modification, the optimized device achieves a responsivity of 2.05 mA/W, a specific detection rate of 3.25 × 10 10 Jones, and an ultrafast response time of 54 ms under 365 nm UV illumination. The detector exhibits exceptional flexibility, stability, and selectivity, maintaining high performance through 2500 bending cycles, indicating significant potential for application in flexible, wearable UV sensing.
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 2
·81
·
IF 5.3
Zhang Haili,Peng Man,Lu Anjiang,Peng Xishun,Wang Cunwei,Zu Caizhen,Bai Zhongchen
A surface-enhanced Raman scattering (SERS) sensor of Au/Ag nanoparticles (NPs) grown on ZnO/polypyrrole@Poly(3,4-ethylene dioxythiophene)-poly(styrene sulfonate) (PPy@PEDOT:PSS) film for detecting norfloxacin (NFX) residues in milk is presented. The ZnO/PPy@PEDOT:PSS film was prepared by the electrochemical deposition method. Subsequently, Ag NPs and Au NPs were deposited on the surface of ZnO/PPy@PEDOT:PSS film to form a Au/Ag/ZnO/PPy@PEDOT:PSS film by an electrochemical deposition process and the magnetron sputtering process, respectively. Owing to the charge transfer between the SERS substrate and the NFX molecules, this SERS sensor could effectively identify low-concentration NFX molecules with a limit of detection (LOD) of 0.84 nM. Moreover, it could also recognize NFX residues in milk with recoveries of 91.2% to 108.4%. The SERS sensor of Au/Ag/ZnO/PPy@PEDOT:PSS film had a high sensitivity, excellent long-term stability, and significant potential in food safety monitoring applications. Graphical abstract
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
·
IF 5.4
Keying Tang,Yilong Fan,Yi Han,Zhifan Zhao,Dianchun Ju,Chunyu Chen
A flower-like MgAlZn layered double oxide/zinc oxide composite (MgAlZn-LDO@ZnO) was prepared through the thermal conversion of a Zn-regulated MgAlZn layered double hydroxide (MgAlZn-LDH) precursor and subsequent coupling with ZnO obtained by a deep eutectic solvent (DES)-assisted route. Different from conventional LDH/LDO-based composites mainly constructed by direct component combination, this work uses Zn²⁺ as a structural regulator to control the growth and assembly of LDH nanosheets, reduce excessive stacking, and promote the formation of a more dispersed three-dimensional flower-like architecture. After calcination, the hierarchical morphology of the precursor was largely retained, and ZnO was uniformly attached to the surface of MgAlZn-LDO. Compared with MgAl-LDH, the obtained MgAlZn-LDO@ZnO composite showed a larger specific surface area, a more developed pore structure, and improved surface hydrophilicity. Photoelectrochemical results showed that MgAlZn-LDO@ZnO possessed a higher photocurrent response and lower charge-transfer resistance than the corresponding LDH precursor, indicating improved separation and migration of photogenerated charge carriers. Under identical reaction conditions, 95.3% of basic fuchsin (BF) was removed within 50 min by MgAlZn-LDO@ZnO, whereas the removal efficiencies of MgAl-LDH and pure ZnO were 52% and 59%, respectively. Radical trapping experiments showed that ·OH was the dominant active species, while ·O₂⁻ also participated in the photocatalytic oxidation process. DFT calculations indicated that the amino groups and adjacent conjugated regions of BF were more likely to be attacked by reactive species. The enhanced adsorption-assisted photocatalytic removal performance was mainly ascribed to the combined effects of Zn²⁺-regulated structural dispersion, LDO-assisted interfacial enrichment, and ZnO-driven charge separation, which together promoted the adsorption–photocatalytic degradation of BF. Download: Download high-res image (192KB) Download: Download full-size image
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PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2026
·
IF 7.9
Pengfei Wang,Chuanhui Geng,Li Shao,Mei Liu,Qian Li,Kecun Ma,Zhi Chen,Qingguo Chen
Water pollution has been worsened by increasing human activities, involving both water-soluble and non-water-soluble contaminants. In this study, a Fe-N-C@ZnO activated PS-AOP (persulfate advanced oxidation process) system was developed through the combination of photocatalysis and PS (persulfate) activation for pollutant degradation in freshwater and seawater. First, the optimal performance was determined by adjusting the Fe-N-C@ZnO to PS ratio, with the best results achieved at 5:3. The degradation efficiency and mechanisms were then examined across different pollutant types. Higher degradation rates were observed in the Fe-N-C@ZnO activated PS-AOP system compared to PS alone, in freshwater, improvements of 70.87%, 61.63%, and 46.26% were recorded for enrofloxacin (ENR), naphthalene, and crude oil, respectively. And in seawater, the increases were 57.53%, 46.87%, and 31.49%. Through radical quenching experiments, h⁺, e⁻, and SO 4 ·⁻ were identified as the dominant reactive species. Additionally, DI-MS analysis was used to propose four degradation pathways for ENR (three Piperazine-Routes and one Quinolone-Route) and two pathways for naphthalene (Benzene ring hydroxylation and Tautomerization). Download: Download high-res image (198KB) Download: Download full-size image
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Zhifeng Zhao,Qingtao Zhu,Qiuyun Chen,Junjie Ma,Lijun Zhou,Siru Su,Jiabin Chen,Zhigao Liu,Quanping Yuan
The study systematically explored the effects of the combination of CNF and PVA on PVA-CMZ composite films. • PVA-CNF dual-network structure possesses high specific surface and abundant active sites. • The abundant binding of ZnO is promoted by the active sites on the above structure. • The interface interaction formed by the oxygen-containing groups of CNF and PVA makes the overall bonding tighter, where tensile strength of composite films reaches 72.50 ± 7.39 MPa. • V OC and I SC of PENG reaches 10.11 V and 698 nA under pressure of 100 kPa respectively. High-performance and environmentally friendly piezoelectric films based on biomass have received extensive attention recently. Among them, wooden cellulose nanofiber (CNF) has become a research hotspot for its low cost, high flexibility and good biocompatibility. In this work, the interwoven PVA-CNF dual-network structure with abundant active sites for its high specific surface was constructed by adding CNF and polyvinyl alcohol (PVA) with abundant oxygen-containing groups, in which MXene was also added as filler, as well as that ZnO was synthesized in the MXene and dual-network substrate via an efficient two-step hydrothermal process to obtain PVA-CNF/MXene@ZnO (PVA-CMZ) composite film. The abundant active sites on the surface of the dual-network structure promote the in-situ synthesis and binding of a large amount of ZnO, further enhancing the overall piezoelectric performance. Moreover, a strong interface interaction is formed by the abundant oxygen-containing groups of CNF and PVA in the assembly process, by which the tight bonding interface among the fillers is practically conducive to the charge and stress transfer, thereby enhancing the overall piezoelectric and mechanical performance. Therefore, the longitudinal piezoelectric constant and tensile strength of the composite film can reach as high as 16.05 ± 0.63 pC·N −1 and 72.50 ± 7.39 MPa respectively, along with the open-circuit voltage and short-circuit current of 10.11 V and 698 nA under a pressure of 100 kPa. Furthermore, it can charge commercial capacitors of specification efficiently, which can still generate stable output under the periodic cyclic force of 5000 s.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Hao Zhan,Wenlong Chen,Xingyu Pei,Hao Wang,Bing Zhao,Xiefei Wang,Qingqing Liang,Yukang Xu,Weiwei Zhu
Highly diffuse cationic dyes and copper ions are normal pollutants in dye wastewater and pose a potential ecological risk, threatening human health. However, current MOF-based fibrous composites usually scarify their stability of active sites for photocatalytic reaction, which inevitably causes nondurable removal of these diffuse particles. Here, an in situ growth strategy was proposed to fabricate robust core-shell heterostructure of ZnO@ZIF-8 nanorods which were anchored within polytetrafluoroethylene (PTFE) micro-scale fibers by the solution-blowing spinning (SBS) technique to achieve ZnO@ZIF-8/PTFE hierarchical fibrous networks (ZZP-HFN). It presents superior degradation of cationic dyes (over 97%) and durable decompose stability of more than 20 cycles, and prominent adsorption capacity for copper ions (86.53 mg/g). Moreover, contrast to the existing MOF-based fibrous membranes, ZZP-HFN exhibits the self-cleaning performance on account of its stable composite structure between ZnO@ZIF-8 nanorods and PTFE fiber. The cationic dyes removal of ZZP-HFN from wastewater is attributed to the synergistic effect of adsorption and photocatalytic ability. This work provides an insight to design advanced MOF-based composites with durable photocatalytic performance for dye wastewater purification.
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ACTA PHYSICO-CHIMICA SINICA
·
2026
·
IF 13.5
Xinmeng Huang,Haoran Zhang,Mengxin Liu,Ying Miao,Zhenxi Yu,Qi Wu,Lei Pan
In response to the growing demands of advanced electronics with integrated electromagnetic interference (EMI) shielding and efficient thermal management, this study develops a multifunctional carbon fiber reinforced polymer composite (CFRP) through a biomimetic hierarchical interface design. A multi-level interfacial engineering approach is employed: first, polydopamine activation improves interfacial adhesion; second, vertically-aligned ZnO nanorod (NRs) arrays are grown in situ to provide mechanical interlocking, dielectric loss, and radial heat conduction pathways; finally, a sheet-like carbon nanotube (CNT) network bridges adjacent fibers, forming a densified, continuous conductive framework. This organic-inorganic, “line-plane” coupled architecture results in remarkable multifunctional enhancement: the composite achieves an EMI shielding effectiveness of 30.8 dB in the X-band, a through-plane thermal conductivity of 0.71 W m −1 K −1 , and significant mechanical improvements—interlaminar shear strength and flexural strength increased by 57.4% and 84.3%, respectively. Efficient Joule heating and photothermal response are also demonstrated. This work presents a scalable hierarchical interface strategy that synergistically integrates structural, thermal, and electromagnetic functions, offering a viable design pathway for next-generation structural materials in EMI-sensitive applications.
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FUEL
·
2026
·
IF 7.8
Jia-Qi Liu,Xing Fan,Ran-Ran Hou,Xiao-Hui Cao,Binoy K. Saikia,Chao Feng,Jin-Xi Wu,Xiao-Yu Dong
Selective enrichment of trace heteroatom compounds from the complex matrix of high-sulfur coal remains a major analytical challenge. In this work, a synergistically engineered ZnO/rGO nanocomposite coating was designed for hollow fiber solid-phase microextraction (HF-SPME) to enable selective enrichment of sulfur- and nitrogen-containing aromatics from thermally dissolved low-rank Indian high-sulfur coals. The coating integrates π-π interaction capability from rGO with Lewis acid-base coordination between ZnO and heteroatoms, forming a dual-interaction adsorption mechanism. After thermal dissolution (300 °C) in toluene, acetone, and isopropanol, soluble fractions were enriched under optimized HF-SPME conditions (35 °C, 30 min extraction). GC/MS and Orbitrap MS analyses demonstrated pronounced selectivity toward polycyclic aromatic hydrocarbons, heteroatom-substituted aromatics, and organosulfur species, while aliphatic compounds were weakly enriched. High-resolution MS combined with in-source collision-activated dissociation revealed preferential capture of highly conjugated (high double bond equivalent) sulfur-containing structures that are difficult to detect using conventional bulk extraction or direct spectroscopic methods. Compared with traditional coal analysis approaches, the ZnO/rGO-HF-SPME strategy provides higher selectivity, improved enrichment efficiency, and enhanced detection of trace heteroatom species. This method offers a targeted analytical platform for elucidating heteroatom occurrence in high-sulfur coal and provides molecular-level insight essential for advanced desulfurization and clean coal conversion processes.
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MOLECULES
·
2026
·Vol. 31
·期 10
·1737
·
IF 5.1
Juan Xu,Jinju Ma,Lanxiang Liu,Baoshan Tang,Hong Zhang,Wenwen Zhang,Zhengjun Shi
Bamboo is a renewable and fast-growing biomass resource with limited utilization and service life owing to its susceptibility to mold. Conventional nano-modification methods, particularly two-step approaches, are limited by weak interfacial bonding between nanoparticles and the bamboo substrate, complex processing, and an inability to simultaneously enhance antimildew performance and dimensional stability. To address these limitations, we developed a one-step hydrothermal method involving the use of tannic acid (TA) for in situ fabrication of ZnO/TA/Ag composite particles on bamboo surfaces. Process parameters were optimized to 100 °C, 10 h, and a zinc acetate-to-tannic acid molar ratio of 20:1. The modified bamboo was characterized using Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, scanning electron microscopy coupled with energy-dispersive spectroscopy, and thermogravimetric analysis. We demonstrated that ZnO/TA/Ag composite particles were successfully loaded onto the bamboo surface, thus improving the all-around performance of the bamboo simultaneously. Antimildew activity against Aspergillus niger and Penicillium citrinum increased from grade 4 in untreated bamboo to grades 1 and 0, respectively; water absorption decreased by 52.85%, and anti-swelling efficiency reached 30.41%, indicating improved mold resistance and dimensional stability. Thus, our technique could serve as a green and efficient one-step in situ modification strategy for high-performance functionalization of bamboo, making it suitable for applications in humid outdoor and indoor environments.
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