ChemSusChem
·
2025
·
IF 6.6
Shuling Fan,Zhongcheng Sun,Can Liu,Fangmin Ye,Meinna Liu
Lithium (Li) metal anodes (LMAs), which show a great potential in constructing high-specific-energy-density Li metal batteries (LMBs), have abstracted wide research interest. However, the generation of Li dendrites and the repeated change of volume upon Li plating/stripping severely block the practical commercialization of LMBs. Herein, the functional carbon fibers (CFs) decorated with ZnO embedded carbon cage (ZnO@C-d-CFs) were fabricated successfully by a two-step route including the in-situ growth of Zn-based metal organic frameworks (MOFs) and subsequent carbonization process, which enriched the lithiophilic sites of CFs host and improved Li+ kinetics of Li+ plating/stripping. Markedly, our designed ZnO@C-d-CFs possessed an obvious surface stability for Li+ plating/stripping (e. g., 1000 cycles with a CE of ~100% for ZnO@C-d-CFs||Li cell, 1200 h for Li-ZnO@C-d-CFs||Li-ZnO@C-d-CFs cell), and demonstrated a great potential in practical LMBs (e.g., a low-capacity decay of 0.067 mAh g-1 per cycle within the monitored 900 cycles in Li-ZnO@C-d-CFs||LiFePO₄ (LFP) cell). The impressive results verified an effectiveness of surface modification on Li host to boost the stable LMAs.
研究领域:
材料科学
·
电化学
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产品关联
DOI
PubMed
高影响因子
Reaction Kinetics Mechanisms and Catalysis
·
2018
·Vol. 124
·期 1
·305-316
·
IF 1.515
Ji Qiuyi,Yu Xiaocai,Nie Zhiwei,Wang Liping,Guo Meicen,Liu Jinghua
Nanocrystalline lanthanide oxide doped ZnO has been prepared by a simple and efficient technique for exhibiting an enhanced visible light photocatalytic activity. The prepared photocatalysts were characterized by SEM, XRD and UV–Vis DRS analysis. XRD data showed that the particles of samples were highly nanosized and crystalline. The sizes of Yb 2 O 3 /ZnO, Er 2 O 3 /ZnO and Pr 6 O 11 /ZnO nanoparticle were 40.97, 40.94 and 51.18 nm and found to be mixed morphology. Six factors such as dosage of photocatalysts, coupling ratio of lanthanide oxide and ZnO, initial concentration of diesel, concentration of H 2 O 2 , illumination time of visible light and pH value were changed in order to test the photocatalytic activity and efficiency of reaction. The enhanced photocatalytic activity was due to the presence of f shells in the lanthanide oxide crystal lattice which delays the process of recombination of electron hole pair. According to the results, diesel removal was < 30% without any catalyst (losses only by evaporation) and the optimized effects of Yb 2 O 3 /ZnO, Er 2 O 3 /ZnO and Pr 6 O 11 /ZnO occurred when the catalyst dose at 0.4, 0.6 and 0.4 g/L, catalyst-coupling ratio at 40, 30 and 10%, initial diesel concentration was 0.05, 0.10 and 0.20 g/L, H 2 O 2 concentration at 4, 4 and 6 mg/L, illumination time at 1.5, 1.5, 2.5 h and pH at 7, 10 and 6 respectively, in which case the diesel removal rate reached 95.48, 98.60 and 90.81%. The experimental results clearly show that lanthanide oxide doped nanocrystalline semiconductor are highly active under visible light irradiation and may find wider applications in environmental remediation technologies.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS A-GENERAL
·
2022
·
IF 5.723
Yanhong Quan,Yuting Jin,Na Wang,Jinxian Zhao,Jun Ren
CuZn/SiO 2 lamellar catalysts are obtained through the introduction of zinc oxide with different amount to Cu/SiO 2 prepared by the ammonia-evaporation method and investigated for the dehydrogenation of methanol to methyl formate. The 20CuZn/SiO 2 catalyst showed the best catalytic activity with a methanol conversion of 44.5% and a selectivity to methyl formate of ~92.7% at 300 °C and 0.2 MPa. The reason for this excellent activity could be ascribed to the strong interaction between Cu and ZnO, which promoted the decomposition of the copper phyllosilicate precursor to release copper oxide and thereby achieved more active Cu 0 species upon reduction on the catalyst surface. In addition, the agglomeration of Cu species was mainly responsible for the slight decline in the methanol conversion in ZnO modified Cu based catalysts for the methanol dehydrogenation reaction.
研究领域:
催化化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Xingfang Xiao,Bowen Zhang,Pei Lyu,Fengxiang Chen,Qian Zhang,Jiuxiao Sun,Zhan Jiang,Xin Liu,Weilin Xu
As a natural protein resource, silk has been favored for thousands of years due to remarkable properties and the lustrous appearance. The broaden use of natural silk promotes it to become a high-tech fiber, which is undesirably hindered by the high hygroscopicity that provides conditions for bacterial growth thus accelerates the corrosion of silk. Functional surface modification can pose as compensation, but traditional nanoscale coating approaches come at the expense of inherent properties. In this work, ultrathin zinc oxide (ZnO) was uniformly deposited on silk fabrics in nanoscale using the atomic layer deposition (ALD) strategy. Different layers of ZnO were deposited by controlling the deposition cycles in the ALD process to evaluate the influences in antibacterial performances. The ZnO coated silk fabrics showed neglectable differences in morphologies compared with the raw silk fabric while manifesting excellent antibacterial properties against E. coli and S. aureus . The ZnO layer had insignificant influence on mechanical and air permeable properties, which guaranteed the wearable properties of silk fabrics. This work contributes to an innovative modification method for natural and wearable protein fibers with antibacterial properties in a controllable and uniform way.
研究领域:
材料科学
·
生物医学
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2019
·
IF 5.155
Wen-Li Xin,Lian-Hua Xu,Kun-Kun Lu,Dan Shan
Fe-N catalysts are one of the promising candidates with efficient oxygen reduction reaction (ORR) activities comparable to Pt-based catalysts. Therefore, in this work, a novel Fe-N based electrocatalyst with high activity, porous structure, and durability were prepared. Highly active N,N′-carbonyldiimidazole (CDI) was used to form zinc-based zeolitic imidazole frameworks involved with zinc carbonate (Zn-ZIFs@ZnCO 3 ). Fe-doping can be feasibly achieved by partial substitution Zn by Fe using Fe (NO) 3 . Owing to the presence of ZnCO 3 and Fe 3+ , carbonization of Fe/Zn-ZIFs@ZnCO 3 at 925 °C under N 2 atmosphere endows the pyrolysis products with many highly active heterostructures of 3D graphene structure. The obtained Fe-N@ZnO possesses superior ORR performance to commercial 20% Pt/C catalysts, such as positive half-wave potential (0.851 V), good durability and methanol tolerance in 0.1 M KOH.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Mai.M. Khalaf,Mohamed Gouda,Manal F. Abou Taleb,Mahmoud A. Abdelaziz,Hany M. Abd El-Lateef
This study aims to functionalize scoured cotton fabrics (SCF) with zinc oxide nanoparticles (ZnONPs). The functionalized SCF was used to prevent microbial growth on solid surfaces and eliminate harmful pathogens in water during the filtration process . Initially, ZnONPs was prepared using Gum Arabic (GA) as a stabilizing agent, which produced dispersed ZnONPs. The results proved that ZnONPs were obtained at a size of approximately 55.91 nm. The synthesized ZnONPs were used as a finishing agent to produce multifunctional fabrics. The SEM analysis revealed the presence of highly distributed small particles onto the surface of SCF. The findings also indicate that ZnONPs-loaded SCF microfilters exhibit significant antibacterial effectiveness via the suppression of bacterial growth. This is evident in the experimental data, which reveals a clear divergence from the bacterial growth curve of the tested bacterial species . Similarly, the sample group of SCF microfilters that did not receive compensation for their use did not demonstrate any significant antibacterial action. These results underscore the influence of ZnONPs-loaded SCF microfilters on microbial cell membranes and their capacity to induce the discharge of intracellular fluids, such as proteins. The findings demonstrate that ZnONPs-loaded SCF microfilters exhibit improved anti-adhesion and biofouling mitigation characteristics compared to unloaded SCF microfilters. The presence of ZnONPs hinders the development of biofilm , as shown by decreased quantities of polysaccharides and proteins in the polymer matrix . Based on the toxicity data, it can be concluded that the samples are safe and may be utilized as a filter medium in the filtering process without any notable hazardous effects. Ultimately, the findings demonstrate that the ZnONPs-loaded SCF is a compelling choice for a water purification system. Consequently, these findings have great potential for the future development of water disinfection technology. The results emphasize the possibility of using ZnONPs-loaded SCF microfilters to address biofouling issues in water treatment applications.
研究领域:
环境科学
·
材料科学
·
微生物学
✓ 已验证
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-18
·
IF 15.7
Li Wen,Shi Zhiyuan,Jing Huaqing,Dou Yunsheng,Liu Xinyi,Zhang Mengyao,Qiu Zitong,Heger Zbynek,Li Nan
Dysregulation of extracellular matrix (ECM) homeostasis plays a pivotal role in the accelerated degradation of cartilage, presenting a notable challenge for effective osteoarthritis (OA) treatment and cartilage regeneration. In this study, we introduced an injectable hydrogel based on streamlined-zinc oxide (ZnO), which is responsive to matrix metallopeptidase (MMP), for the delivery of miR-17-5p. This approach aimed to address cartilage damage by regulating ECM homeostasis. The ZnO/miR-17-5p composite functions by releasing zinc ions to attract native bone marrow mesenchymal stem cells, thereby fostering ECM synthesis through the proliferation of new chondrocytes. Concurrently, sustained delivery of miR-17-5p targets enzymes responsible for matrix degradation, thereby mitigating the catabolic process. Notably, the unique structure of the streamlined ZnO nanoparticles is distinct from their conventional spherical counterparts, which not only optimizes the rheological and mechanical properties of the hydrogels, but also enhances the efficiency of miR-17-5p transfection. Our male rat model demonstrated that the combination of streamlined ZnO, MMP-responsive hydrogels, and miRNA-based therapy effectively managed the equilibrium between catabolism and anabolism within the ECM, presenting a fresh perspective in the realm of OA treatment.
研究领域:
医学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POLYMER RESEARCH
·
2025
·Vol. 32
·期 10
·1-10
·
IF 2.8
Du Chenglong,Huang Zhibo,Wu Xiaohui,Jing Shuailin,Wang Feifei,Liu Xiao,Shi Yan,Zhang Liqun
The increasing demand for brominated butyl rubber (BIIR) has intensified the use of conventional ZnO/sulfur-based curing systems, raising significant environmental concerns. Herein, we present a sustainable, ZnO- and sulfur-free cross-linking strategy enabled by a primary amine, octadecylamine (ODA), which serves as an efficient cross-linker for BIIR. Upon thermal activation at 160 °C, ODA reacts with the benzylic bromide groups of BIIR via dual nucleophilic substitution, forming stable covalent networks. The cross-link density and resultant mechanical properties exhibit a positive correlation with ODA loading, reaching an optimum at 3 phr. In contrast, octadecyltrimethylammonium bromide (OTAB) and diethylamine hydrochloride—lacking N–H protons—show negligible reactivity, highlighting the essential role of the primary amine functionality in the cross-linking mechanism. This work establishes a quantitative structure–efficiency relationship for amine-based cross-linkers, providing both experimental validation and mechanistic insight for the rational design of environmentally benign vulcanization processes in halogenated elastomers.
研究领域:
高分子化学
·
材料科学
·
环境友好材料
·
橡胶工业
·
可持续化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Wei Zhang,Qiang Niu,Yuyang Cheng,Hengguo Zhang,Kelong Fan,Xianwen Wang
Traditional medical gauze can only partially isolate bacteria and cannot effectively address the persistent problem of antibiotic resistance. In this study, persistent antibacterial gauze modified with zinc oxide and manganese oxide (MG@ZnO) was developed for antibacterial treatment and the promotion of wound healing via the inhibition of bacterial invasion, disruption of bacterial protein metabolic processes, and stimulation of the host immune response. Notably, MG@ZnO was fabricated via simple potassium permanganate oxidation followed by wet chemical processing, resulting in excellent physical stability and significant clinical translational potential. Moreover, MG@ZnO exerts bactericidal effects through a variety of antibacterial mechanisms, including physical, Zn 2+ , and peroxidase pathways, thereby circumventing the issue of bacterial resistance. In vitro antibacterial experiments demonstrated that MG@ZnO can effectively eliminate both Escherichia coli ( E. coli ) and methicillin-resistant Staphylococcus aureus ( MRSA ). Notably, a concentration of only 100 μg/mL was sufficient to achieve complete bactericidal activity against both strains (1 × 10 6 colony-forming units/mL). The RNA-sequencing findings of MRSA indicate that ZnO disrupts the bacterial ribosome, thereby impacting the metabolic processes of bacterial peptides and proteins. Furthermore, ZnO has the capacity to prevent MRSA infiltration of epithelial cells by dismantling fibrinogen-binding proteins A and B (FnBPA and FnBPB) located on the surface of MRSA . Animal experiments have demonstrated that MG@ZnO has the ability to eliminate MRSA by stimulating the host immune response and facilitating the recovery of infected bacterial wounds. Red blood cell hemolysis, cell toxicity, and routine blood and blood biochemistry results revealed that ZnO and MG@ZnO have good biocompatibility. This low-cost, versatile and flexible synthesis process can be used to manufacture a variety of functional gauzes, making it useful in a variety of medical applications.
研究领域:
医学材料学
·
生物医学工程
·
微生物学
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2024
·
IF 13
Jia-Xin Qi,Jing-Wen Gong,Zhi-Hai Peng,Cheng-Rong Zhang,Jin-Lan Liu,Yuan-Jun Cai,Xiao-Juan Chen,Xiao-Xing Wang,Ru-Ping Liang,Jian-Ding Qiu
Piezoelectric catalysis is an emerging green strategy, but the existing piezoelectric heterostructures are not sufficient in performance for catalytic reduction of low-reduction potential uranium under harsh conditions. This study innovatively employs a defect heterogeneous engineering strategy, wherein covalent organic frameworks (COFs) are grown in situ on the surface of zinc oxide (ZnO) via Schiff base reactions, and defects are introduced into the COF shell layer via imine exchange reactions to construct D-COF@ZnO for piezoelectric catalytic uranium removal. The comprehensive study shows that defect heterogeneous engineering increases the asymmetry induced polarization of the material to promote charge redistribution, and thus significantly improves the activity of piezoelectric catalysis. In addition, defect engineering optimizes the nanosize of D-COF@ZnO to expose a richer array of active sites, resulting in ultra-fast U(VI) removal kinetics and ultra-high removal capacity. In the actual nuclear wastewater settings, D-COF@ZnO demonstrates outstanding selective removal efficacy for uranium, manifesting its considerable application potential and efficiency superiority. This strategy holds profound implications for facilitating the application of piezoelectric catalytic technology in environmental protection domains such as uranium removal, manifesting its considerable potential and value.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2024
·
IF 8.4
Yidan Ding,Mengjiao Xia,Jian Yu,Erqiao Chen,Congcong Zhou,Liguo Shen,Yang Jiao,Yanchao Xu,Hongjun Lin
Mixed matrix membranes (MMMs) incorporating ZIF-8 nanoparticles through non-solvent induced phase separation (NIPS) hold great potential in the organic solvent nanofiltration (OSN) field, but their advancement and application have been significantly hindered by ZIF-8’s instability of ZIF-8 in aqueous conditions and major interfacial incompatibilities with polymers. This study presents an approach to overcome these obstacles by initially forming crosslinked ZnO/polyimide (PI) MMMs via NIPS and crosslinking processes, followed by in-situ conversion of ZnO to ZIF-8 within the membrane structure. This method prevents direct contact of ZIF-8 with water, optimizes the interface between ZIF-8 and the polymer, and modulates the pore structure of the membranes. The resulting crosslinked ZIF-8/PI membranes exhibit an ultra-high ethanol permeance of 42.7 L m⁻ 2 h⁻ 1 bar⁻ 1 and a 99.5 % rejection of Rose Bengal dye, surpassing the performance of all state-of-the-art OSN MMMs to our knowledge. Additionally, these membranes also demonstrate excellent separation performance in harsh solvents such as DMF and NMP. The findings of this study not only significantly advance the development of OSN membranes but also offer insights into the optimization of membrane fabrication techniques, setting a new benchmark for the design of high-performance OSN membranes.
研究领域:
材料科学
·
化学工程
·
膜技术
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 83
·67780-67786
·
IF 3.84
Ming Zhang,Deli Zang,Junyou Shi,Zhengxin Gao,Chengyu Wang,Jian Li
In the experiments described in the following manuscript, we report a covalent deposition method to prepare a zinc oxide film on a cotton surface. After grafting with (heptadecafluoro-1,1,2,2-tetradecyl)trimethoxysilane, the wetting property of the fabric sample transformed from superhydrophilic to superhydrophobic with a WCA of 158 ± 1°. Moreover, polystyrene was introduced to enhance the mechanical and chemical stabilities of this superhydrophobic cotton fabric. The geometric microstructure of the cotton sample before and after treatment was characterized by using scanning electron microscopy (SEM). The elemental composition of the film on the cotton textile was determined by using X-ray photoelectron spectroscopy (XPS), and the diverse performances of the sample have been evaluated as well. The results exhibited the outstanding superhydrophobicity, waterproofing durability and flame retardancy of the cotton fabric after treatment, offering an opportunity to accelerate the large-scale production of superhydrophobic textiles materials for new industrial applications, such as water/organic solvent separation.
研究领域:
材料科学
·
纺织工程
·
表面化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）