Journal of Water Process Engineering
·
2025
·
IF 6.7
Chen Zhao,Yiheng Wang,Nianping Wang,Ruilin Chen,Rui Yin,Xiangxi Li
The in-situ growth of ZnO is often used to modify membrane surface for enhanced hydrophilic and antibacterial properties due to significant modification effect, simple process and low cost. Nonetheless, some polymer membranes (such as PVDF membrane) lack active sites for ZnO growth on their surfaces, resulting in a small number of particles and unstable binding. This study utilized PDA/PEI to modify PVDF membranes for adequate active sites to capture Zn 2+ ions via the chelation action. Thereafter, nano ZnO can be synthesized easily via the alkalization reaction and thermal breakdown of Zn 2+ . Upon improving the modification conditions, ZnO particles were evenly distributed on the PVDF membrane's surface, leading to a reduction in membrane pore size from 0.38 nm to 0.29 nm. The water contact angle of the ZnO/PDA-PEI modified membrane dropped from 130° to 19°, indicating a significant enhancement in hydrophilicity. The modified membrane demonstrated enhanced anti-fouling performance in the oil/water separation experiment, achieving a steady permeance of 298 L·m −2 ·h −1 ·bar −1 , which was sixfold that of the original membrane. In the antibacterial experiment, the modified membrane exhibited significant antibacterial efficacy against both E. coli and S. aureus .
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Lin Chen,Xi Chen,Fei Wang,Yu Tong,Kewei Zhang,Zhengbo Han,Mingzhe Zhang
Metal-organic frameworks (MOFs) are regarded as potential candidate materials with great application prospects in the field of gas sensing. In this study, MOF derivatives were anchored onto MXene sheets through self-assembly technology to prepare a heterojunction material ZnO/Ti 3 C 2 T x MXene with high specific surface area, achieving ultrafast dual gas sensing behavior for H 2 /NO 2 . At a low temperature of 80°C, the ZnO/ Ti 3 C 2 T x MXene heterojunction sensor exhibited an ultrafast response (23.17%) to 500 ppb H 2 within 3.2 s. After a moderate temperature increase to 180°C, it also demonstrated significant sensing performance (46.3%) to 500 ppb NO 2 within 4 s. The electronic interaction mechanism of ZnO/ Ti 3 C 2 T x MXene heterostructures in H 2 and NO 2 detection was revealed through density functional theory calculations and in-situ Raman spectroscopy, clarifying the influence of interfacial charge transfer on sensing performance. Heterogeneous structures achieve the regulation of gas adsorption-induced electron rearrangement and carrier modulation by constructing interface charge-regulating channels, significantly enhancing the response rate, selectivity and reversibility in the detection of H 2 and NO 2 , thereby enabling highly sensitive and trace detection of the two gases.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Cong Li,Nuramina Abdukirim,Tursun Abdiryim,Ruxangul Jamal,Feng Xu,Yaoming Yu,Sihuleng Ba
Oxygen vacancy (V O ) engineering is an effective strategy for enhancing the performance of electrocatalytic CO 2 reduction (eCO 2 RR) to CO. In this study, composite materials of zinc oxide (ZnO) and polypyrrole (PPy) were prepared via in situ polymerization, with the V O concentration precisely controlled by adjusting the PPy molar ratio. The V O concentration first increased and then decreased as the PPy content decreased, while the zinc vacancy (V Zn ) concentration exhibited an opposite trend. Characterization results indicate that the PPy conjugated framework dynamically regulates the V O /V Zn concentration through electron injection, and its controllable hydrophobicity enhances CO 2 mass transfer and interfacial enrichment. Crucially, experiments reveal that a high V O concentration is key to achieving high performance, as V O reduces the activation energy barrier for C O bond cleavage through charge redistribution, synergistically optimizing the adsorption energy of the *COOH intermediate. Density functional theory calculations confirm that Vo regulates the d-band center position of ZnO and reduces the activation energy barrier for CO 2 activation. The optimal sample, V O -enriched ZnO/PPy-4, achieves an FE CO of 73.8 % at −1.6 V (vs. RHE) and stably maintains CO/H 2 ratio of 2:1 at −1.2 V (vs. RHE), with < 5 % decay rover 8 h. This study demonstrates a strategy for obtaining high-performance electrocatalytic CO 2 reduction catalysts by regulating Vo concentration.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Lingjun Zhou,Wenyan Zheng,Muzhi Cai,Feifei Huang,Ying Tian,Shilong Zhao,Liaolin Zhang,Junjie Zhang
The TeO 2 -ZnO-Na 2 O glass system demonstrates significant promise for mid-infrared laser applications due to its high refractive index and low phonon energy, although it is inherently limited by poor thermal stability. Traditional methods aimed at enhancing thermal stability, such as the incorporation of intermediates, typically result in compromised optical performance. However, this study introduces a synergistic optimization strategy through strategic Ta 2 O 5 doping. A systematic analysis utilizing Differential Scanning Calorimetry (DSC), Raman spectroscopy, X-ray Photoelectron Spectroscopy (XPS), and photoluminescence (PL) spectroscopy has uncovered a novel correlation between optical performance and average rather than maximum phonon energy. This discovery provides a refined theoretical framework for the design of tellurite glasses. The optimized Tm 3 -doped TZNT4 glass, with a glass transition temperature ( T g ) of 388 °C and a thermal stability range ( ΔT ) of 137 °C, demonstrates excellent absorption (9.1 ×10 −21 cm 2 ) and emission cross-sections (7.1 ×10 −21 cm 2 ) at 2 μm. This work establishes a structure-property-performance paradigm for tellurite glasses, effectively addressing the critical trade-off between thermal robustness and mid-infrared emission performance through rational composition engineering.
✓ 已验证
产品关联
DOI
高影响因子
Desalination and Water Treatment
·
2024
·
IF 1
Lu Peng,Peng Nian,Jingwei Feng,Xiangxiang Han,Binhua Cui,Songsheng Lu,Jie Zhang,Chenming Li,Aiyong Zhang
The present study evaluated fabrication of bioactivated carbon (BAC) from waste activated sludge (WAS) for methyl tert-butyl ether (MTBE) removal from aqueous solution. BACs were prepared using KOH, H 3 PO 4 , and ZnCl 2 as chemical activation reagents, followed by thermal activation. Batch experiments with different BAC types and dosages, solution pH, initial MTBE concentrations, and contact times were conducted to investigate the BAC effectiveness. The obtained data were analyzed using the kinetics and isotherm model and also with artificial neural network (ANN). The result of Fourier transform infrared (FTIR) spectra of WAS and BAC was depicted that the C–H and C–C were major surface functional groups. The ZnCl 2 activated carbon had the highest adsorption capacity for MTBE adsorption, followed by H 3 PO 4 and KOH activated carbons. The results showed that the highest MTBE removal was observed at solution pH equal to 4 and approximately 30% of MTBE could be adsorbed with 30 min contact time. It was also found that MTBE adsorption followed the R–P isotherm and pseudo-second order (type 1) kinetic models. During ANN modeling, the optimum neurons number for Levenberg–Marquardt training algorithm was determined equal to 5 with highest R 2 value and lowest mean square error were found to be 0.99 and 5.7 × 10 –4 , respectively.
✓ 已验证
DOI
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 21
·16361-16367
·
IF 3.84
Xiaolong Ren,Pengzhan Ying,Zuobao Yang,Minghui Shang,Huilin Hou,Fengmei Gao
1D large-pore mesoporous ZnO materials have attracted tremendous attention because of their outstanding properties and promising applications in a wide range of fields. In the present work, we report the fabrication of large-pore mesoporous ZnO nanofibers via an improved electrospinning strategy, namely, the foaming-assisted electrospinning technique, combined with subsequent calcination treatment. The as-fabricated large-pore mesoporous nanofibers were systematically characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Brunauer–Emmett–Teller (BET) specific surface area (SBET). The obtained products possess well-designed 1D mesoporous nanostructure with high purity and homogeneous large pore sizes. It is found that the content of the foaming agent within the solutions plays a crucial role in the formation of large-pore mesoporous ZnO nanofibers, enabling the growth of the fibers in a controlled manner. The resultant large-pore mesoporous nanofibers exhibit excellent photocatalytic activity and significant stability for hydrogen production compared to conventional solid nanofibers. The present work suggests a facile preparation of the large-pore mesoporous ZnO nanofibers, which may open new doors for their potential applications in photocatalysts.
✓ 已验证
DOI
高影响因子
Journal of Soil Science and Plant Nutrition
·
2024
·Vol. 24
·期 1
·1301-1317
·
IF 3.4
Mai Yiming,Ren Yong,Deng Siying,Ashraf Umair,Tang Xiangru,Duan Meiyang,Mo Zhaowen
Foliar application of ZnO Nanoparticles (ZnO-NPs) could reduce adverse effects of multiple abiotic stresses in crop plants. The present study was conducted to induce the low temperature stress tolerance in growing rice plants by the foliar application of ZnO-NPs. Two fragrant rice cultivars i.e., Meixiangzhan2 and Xiangyaxiangzhan were grown under normal temperature (NT, day/night: 28℃/25℃) and low temperature (LT, day/night: 15℃/12℃) after foliar application of Zn and ZnO-NPs with following treatments viz . , application of distilled water only (CK), ZnSO 4 ·7H 2 O at 6.6 mg·L −1 (CK1), and application of ZnO-NPs at 25, 50, 100, and 200 mg·L −1 regarded as N25, N50, N100, and N200, respectively. The growth and physiological attributes were examined to assess the potential of ZnO-NPs to induce low temperature stress tolerance in growing rice plants. The ZnO-NPs, and temperature × ZnO-NPs had a significant effect on the growth and physiological attributes ( p < 0.05) of rice seedlings. The ZnO-NPs application enhanced the root dry weight, root-shoot ratio, total dry weight, and chlorophyll a/b ratio in Xiangyaxiangzhan by 10.48%-18.10%, 1.96%-20.31%, 3.25%-6.02%, and 3.70%-6.11% at low temperature, respectively. The activity of antioxidant enzymes in Meixiangzhan 2 was increased, whilst the malondialdehyde (MDA) content in root was significantly declined. Moreover, lower levels of ZnO-NPs treatment regulated the activity of N-metabolizing enzymes i.e., nitrate reductase (NR), glutamate synthase (GS), glutamine oxoglutarate aminotransferase (GOGAT) and in seedlings under low temperature. Regarding correlation analysis, the N100 and N200 treatment exhibited a stronger correlation with growth-related attributes, compared to other treatments. Foliar application of ZnO-NPs at appropriate concentration (100 mg·L −1 ) could alleviate the inhibitory effect of low temperature stress on the early growth of fragrant rice.
✓ 已验证
DOI
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2013
·
IF 3.328
Mei Li,Gu Li,Juan Jiang,Ye Tao,Kancheng Mai
In order to increase the antimicrobial functionality of polypropylene random copolymer (PPR), nano-ZnO-supported on the surface of zeolite particles were prepared and used as functional fillers for PPR composites. The prepared nano-ZnO-supported zeolite particles were characterized by fluorescence and UV–Vis spectra, inductive coupled plasma and scanning electron microscopy. The crystallization behavior and crystalline morphology, antimicrobial ability and mechanical properties of zeolite, ZnO and nano-ZnO-supported zeolite filled PPR composites were investigated by differential scanning calorimeter , polarizing optical microscopy, antimicrobial and mechanical testing. The results indicated that the ZnO with flower-like morphology was formed on the surface of zeolite particles. The heterogeneous nucleation of zeolite and nano-ZnO-supported zeolite increase the crystallization temperature of PPR. The crystallization temperatures of nano-ZnO-supported zeolite filled PPR composites increase with increasing ZnO content in the nano-ZnO-supported zeolite. Incorporation of nano-ZnO-supported zeolite significantly decreases the size of spherulites of PPR. The nano-ZnO-supported zeolite filled PPR composites exhibit higher antimicrobial abilities than nano-ZnO filled PPR composite prepared by directly adding the same content of nano-ZnO into PPR matrix for the Staphylococcus aureus and Escherichia coli due to the flower-like morphology of ZnO in the nano-ZnO-supported zeolite. The nano-ZnO-supported zeolite content has little influence on the mechanical properties of PPR composites. nano-ZnO-supported zeolite as functional filler can be used to increase the antimicrobial ability of PPR.
✓ 已验证
DOI
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2021
·
IF 3.927
Meihuizi Wang,Haiyan He,Chunhui Shou,Hao Cui,Deren Yang,Lei Wang
The current diamond-wire-sawed multi-crystalline silicon wafer lacks an effective light trapping structure, which results in high reflectivity and hinders the improvement of efficiency . In this work, we proposed an enhanced light trapping structure outside the junction of multi-crystalline silicon solar cells, that is, constructing a ZnO nano-needle array on the surface of the textured multi-crystalline silicon to minimize the reflection in the visible-near infrared band to achieve light trapping effect. Solar cells with ZnO nano-needle structure exhibit excellent light trapping performance over a wide band (350–1100 nm). The low-cost and simple preparation method makes this enhanced light trapping structure has broad application prospects.
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Peiyu Zeng,Renli Fu,Chaoyue Jia,Yifan Lv,Yitao Xue
Sapphire, with its superior optical and thermal properties, is an increasingly attractive high-performance substrate material for advanced LED packaging. However, its inherent surface characteristics-namely the absence of grain boundaries and strong chemical inertness-pose significant challenges for conventional metallization processes, severely limiting its broader application in electronic packaging. To address this critical issue, this study develops a novel silver conductive paste incorporating a custom-designed ZnO–B 2 O 3 –SiO 2 –CuO (ZBSC) glass frit as the inorganic binder. A robust silver thick film was successfully fabricated on a sapphire substrate via a thick-film metallization process. We systematically investigate the effect of sintering temperature on the film's microstructure and properties. The results demonstrate that the ZBSC glass exhibits excellent comprehensive performance and exceptional compatibility with the sapphire substrate. A key finding is the in-situ formation of a spinel CuAl 2 O 4 phase at the interface during sintering, resulting from a chemical reaction between the glass frit and the substrate. This interfacial reaction is crucial for achieving superior bonding. Optimized at a sintering temperature of 850 ℃, the silver film exhibits outstanding comprehensive performance: an ultra-low sheet resistance of 2.03 mΩ/□ and a high shear strength of 21.97 MPa. This performance is attributed to a dense, well-sintered silver microstructure with a continuous and complete conductive network, intimately bonded to the sapphire substrate. This work not only provides a high-performance solution for sapphire metallization but also offers new insights into the role of interfacial chemistry in thick-film technology. The proposed method represents a high-quality, reliable metallization technique with significant promise for advanced electronic packaging applications.
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2026
·Vol. 16
·期 13
·829
·
IF 4.8
Huibo Han,Shuai Wang,Rui Min,Ragini Singh,Bingyuan Zhang,Santosh Kumar
2,4-Dichlorophenoxyacetic acid (2,4-D) is an extensively applied organic compound, primarily for agricultural weed control and plant growth agents. Although 2,4-D usually exists in the environment in low volumes, the detection of 2,4-D is critical for human health and environmental safety. In this work, a biophotonic biosensor was fabricated by coating the surface of a tapered optical fiber with gold nanoparticles (AuNPs) to excite the localized surface plasmon resonance (LSPR) and functionalizing the fiber with molybdenum disulfide nanosheets (MoS2-NSs)/zinc oxide nanowires (ZnO-NWs) to extend the effective sensing area. Due to the inhibitory effect of 2,4-D on the hydrolytic activity of ALP, the refractive index (RI) around the sensor surface changes, leading to a shift in the LSPR peak wavelength. According to this sensing technique, the sensor can detect concentrations in the range of 1–10 mg/L, with a limit of detection (LOD) of 0.29 mg/L. The stability, repeatability and selectivity tests show that the sensor has good stability and selectivity. In the actual sample detection experiment, the recovery rates of apples and Chinese cabbage were 96.2–100.4% and 83.8–108.8%, respectively, which indicated that the detection method had good accuracy for the detection of target substances in actual samples. Thus, the proposed sensor has an important application in the detection of 2,4-D herbicides.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 9
·596
·
IF 5.4
Wang Wenzhuo,Lu Juan,Jiang Hanyue,Han Pengfei,Ma Guangping,Li Ruixin,Mao Huiyuan,Ma Tengying,Wang Jing,Chen Ruizhan,Tian Li
A dual-mode sensing platform has been developed for ultrasensitive malathion (MAT) detection based on bifunctional rGO@ZnO/Zn-Fe 3 O 4 composites (reduced graphene oxide-supported ZnO nanorods and Zn-doped Fe 3 O 4 microspheres). The rGO@ZnO/Zn-Fe 3 O 4 nanozyme is fabricated via a one-pot hydrothermal strategy and integrates favorable electrochemiluminescence (ECL) emission and intrinsic peroxidase-mimicking activity to realize dual-signal readout. In the K 2 S 2 O 8 ECL system, Au NPs@UiO-66 serves as a coreactant booster to further magnify the ECL intensity of the composite. Meanwhile, the nanozyme catalyzes the H 2 O 2 -mediated oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) to produce a colorimetric response. MAT suppresses both ECL and colorimetric responses by occupying Fe 2+ /Fe 3+ catalytic sites and scavenging of reactive radicals. The sensor achieves limits of detection as low as 2.8 × 10 –13 mol/L under ECL mode and 1.32 × 10 –6 mol/L under colorimetric mode. In practical testing of MAT-spiked vegetable samples, the sensor exhibits acceptable recoveries and low relative standard deviations, demonstrating its practicability for field food safety supervision and rapid pesticide residue screening. Graphical abstract
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）