SENSORS AND ACTUATORS B-CHEMICAL
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2024
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IF 8
Bing Song,Lixue Qi,Hongyi Wu,Yan Tong,Li Li,Muhammad Ikram,Keying Shi
The solvothermal and wet chemical method was developed to synthesized the p-n heterostructures of the thin porous Co 3 O 4 nanosheets with ZnO nanoparticles. The resulting products were analyzed by using various characterization techniques. The results possessed that the presence of a large number of oxygen defects on the surface of Co 3 O 4 -ZnO-7 favors enhancing the NO 2 adsorption. Correspondingly, the formation of p-n heterojunction and the large surface area of the material itself increased the carrier density and exposed more active sites, which collectively boost the sensing performance to NO 2 . The sensor showed a high response of 45.7 (S = R a /R g ) to 100 ppm NO 2 at room temperature (RT = 25 °C), with a short response/recovery time (1.3/25 s), and the lower detection limit of the sensor reached 30 ppb, with good selectivity, reproducibility and stability. This study will offer the opportunity to develop new sensors with high response and fast response-recovery to NO 2 at room temperature.
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高影响因子
ACS Biomaterials Science & Engineering
·
2024
·
IF 5.4
Yilin Mao,Liang Wang,Zhengyi Xu,Wenjia Xie,Yuting Wang,Wei Qiao,Zhou Zhu,Jian Wang
In recent years, nanomaterials have gained widespread use in the biomedical field, with ZIF-8 and ZnO emerging as promising candidates due to their remarkable performance in osteogenesis, angiogenesis, and antimicrobial therapy. However, before advancing these nanomaterials for clinical applications, it is imperative to evaluate their biocompatibility. In particular, comparing nanomaterials with similar biomedical functions is crucial for identifying the most suitable nanomaterials for further development and market entry. Our study aimed to compare the biocompatibility of nano-ZIF-8 and nano-ZnO under the same conditions. We found that nano-ZIF-8 exhibited lower toxicity both in vitro and in vivo compared to nano-ZnO. To gain insights into the underlying mechanisms responsible for this difference, we conducted further experiments to investigate lysosome damage, mitochondrial change, and the occurrence of ferroptosis. Additionally, we performed transcriptome sequencing to analyze the expression of relevant genes, thereby providing robust validation for our findings. In summary, our study highlighted the importance of evaluating nanomaterials with similar biomedical effects. Through this comparative study, we have not only shed light on the superior biocompatibility of nano-ZIF-8 over nano-ZnO, but also contributed valuable insights and methodological references for future material screening endeavors. Ultimately, our study served as a stepping stone toward the development of safer and more effective nanomaterials for various biomedical applications.
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PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
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IF 8.2
Nan Wang,Yashu Li,Lin Wang,Chengcheng Xie
Persistent organic pollutants pose significant environmental and health risks, highlighting the urgent need for highly sensitive sensing technologies capable of detecting trace concentrations. In this study, we synthesized a ReS2/ZnO/Au ternary surface-enhanced Raman spectroscopy (SERS) substrate via a simple hydrothermal and reduction method based on a novel strategy that leverages multiple charge transfer channels to significantly enhance SERS performance. The unique bandgap and energy level alignment of ReS2 facilitate both excitonic resonance and charge transfer transitions. Additionally, the semiconductor ZnO acts as an efficient charge transfer mediator by borrowing energy from molecular transitions. As a result of the synergistic combination of electromagnetic and chemical enhancements, the ReS2/ZnO/Au ternary substrate demonstrates excellent versatility and high sensitivity for detecting various pollutants, including rhodamine 6G (R6G), crystal violet, malachite green, and tetracycline (TC). Notably, the detection limit for TC can reach 10–10 M, with an enhancement factor as high as 2.78 × 108. Our strategy provides comprehensive insight into SERS enhancement, offering a pathway for designing sensitive and versatile SERS systems, with significant potential for monitoring and quantitative analysis of organic pollutants.
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PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Xiaoyu Chen,Zhuo Liu,Shuang Li,Yue Sun,Yuchi Zhang,Yan Xu
Extraordinary behavior of semiconductor metal oxide-based gas sensors is broadly applied in gas supervision, but they usually suffer from high operating temperature , gas cross-sensitivities and response fluctuations, limiting their use in expanding applications. Herein, hierarchical In 2 O 3 /ZnO micro-flower with in-plane folded shells heterostructure was successfully prepared through simple glycerol-assisted solvothermal method followed by a subsequent pyrolysis treatment. The optimized In 2 O 3 /ZnO-0.5 heterostructure with specific In/Zn molar ratio exhibits excellent triethylamine (TEA) sensing capability at 200 ℃, including a high response of 34.87 towards 100 ppm TEA, superb gas selectivity , fast response and recovery time (62 s/33 s) and prolonged cyclic stability, ascribing to the well assembly of the unique In 2 O 3 /ZnO n-n heterojunction with plentiful reactive sites, which markedly promote the absorption of TEA and the surface gas sensitive reaction with oxygen species at the close contacted interface between In 2 O 3 and ZnO. This work demonstrates a stable method for feasible manufacturing of In 2 O 3 /ZnO heterostructure with intriguing multi-level micro-nanostructure for highly sensitive TEA gas sensing application.
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高影响因子
JOURNAL OF POWER SOURCES
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2024
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IF 8.1
Zhidong Jin,Yue Mou,Jinbo Zhao,Fei Liu,Lin Liu,Dewen Zhao,Shiqiang Li,Fenglong Wang,Jiurong Liu,Chang Liu,Lili Wu
Clean, alternative energy sources, especially fuel cells, are gradually attracting global attentions while the produced toxic nitrogen dioxide (NO 2 ) is a greatly hazardous chemical impacting their energy efficiencies. Metal oxide semiconductors (MOS) hold significant promise as NO 2 sensors. However, intensive humidity interaction intensifies signal drifts and reliable response inhibitions under variable humidity conditions. In this study, we present a novel approach to address this issue by engineering in-situ F-doped NiO nanocomposites (NiOF x ) decorated on ZnO snowflakes achieved through decomposition modulation of ZnOHF precursors. The optimized NO 2 sensor demonstrates unparalleled humidity-independence across a wide operating temperature range with prime sensitivity, low detection limit and rapid response/recovery. Matrix algorithm is also implemented in highly precise NO 2 identification under complicated atmospheric and humid conditions. Mechanism studies based on temperature programmed desorption (TPD), quasi in-situ X-ray photoelectron spectroscopy ( Quasi in-situ XPS) reveal that F − dopants facilitate interfacial electron transferring and inhibit oxygen activity. In-situ diffuse reflectance infrared Fourier transform spectroscopy ( In-situ DRIFTS) demonstrates that hygroscopic NiO and electronegative F − synergistically obstruct hydroxyl adsorptions on sensing materials. The innovative approach offers a promising solution for enhancing moisture resistance of MOS sensors for real-time NO 2 concentration monitoring in fuel cells and provides valuable insights into anti-humidity mechanisms.
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JOURNAL OF MEMBRANE SCIENCE
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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.
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CHINESE JOURNAL OF CHEMICAL ENGINEERING
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2025
·
IF 3.7
Zhengtao Wei,Xiaofei Wang,Xuliang Lin,Xueqing Qiu
The emission of organic pollutants from the dye industry and medical treatment represents a significant threat to the quality of water resources and human health. The development of green, environmentally friendly and efficient photocatalysts for the removal of organic pollutants from the environment is of paramount importance in addressing these issues. Flower-like lignin-derived carbon (LC)/zinc oxide (ZnO) composites with controllable morphology were synthesized via a direct precipitation method. In this study, alkali lignin was employed as an anionic active agent to alter the molecular arrangement on the liquid surface during the synthesis reaction and to reduce the surface tension between mixtures, thereby forming a special stacked morphology, which was then used for the highly efficient removal of methylidene blue (MB) and tetracycline hydrochloride (TCH) in water under different light conditions. The formation mechanism of LC/ZnO and the degradation characteristics under different reaction conditions were investigated. The loading of LC can form composites with large specific surface area and rich porous structure. In addition, with the help of lignin, the morphology of ZnO was changed from a rod-like structure to a lamellar structure, and LC could effectively reduce the band gap of ZnO, which could improve the electron transfer rate in the photocatalytic process. The ·O₂⁻ and ·OH radicals generated under photoexcitation promoted the decomposition of pollutants. This study presents a simple, economical, and scalable method for the application of photocatalysts and explores new ways for the high-value application of industrial lignin.
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ACS Applied Polymer Materials
·
2024
·
IF 4.4
Zhihan Cai,Wangzhe Xia,Haibo Li,Rui Qin,Fangping Wu,Jianhong Wu,Xianze Yin,Zehao Li,Yongsheng Yang
Water pollution is a critical global environmental challenge, necessitating efficient and innovative remediation strategies. This work outlines the successful synthesis of poly(vinylidene fluoride) (PVDF) composite membranes infused with varying proportions of magnesium-doped zinc oxide (MgZnO) using an economical and simplified interfacial film-forming method. The MgZnO0.1PVDF1–1 composite membrane demonstrates exceptional and stable purification performance, significantly reducing the amount of antibiotics in water through a combination of static adsorption and ultrasound-guided piezoelectric degradation. SEM/FTIR/XPS/BET analyses postulate the underlying adsorption mechanisms as surface complexation, ion-dipole interaction, and cation exchange coupled with piezoelectric catalysis via the ion-dipole moment effect. The degradation process leverages a unique converse and positive piezoelectric effect, inducing surface mechanical deformation and internal free radical polarization and fostering outstanding tetracycline (TC) degradation. Comprehensive experiments considering variables such as pH, concentration, and reaction time further substantiate the superior performance of MgZnO0.1PVDF1–1, achieving an impressive maximum TC removal ratio of 86%. The high TC removal efficiency, enduring recycle performance, and economical operative method underline MgZnO0.1PVDF1–1 as a significant potential for mitigating antibiotic water pollution.
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Nano Today
·
2024
·
IF 13.2
Cong Wang,Chaofeng Wang,Shuilin Wu,Zhenduo Cui,Yufeng Zheng,Zhaoyang Li,Hui Jiang,Yu Zhang,Paul K. Chu,Shengli Zhu,Xiangmei Liu
Deep-seated osteomyelitis caused by bacterial infection, particularly methicillin-resistant Staphylococcus aureus (MRSA) infection, poses a significant challenge to treatment. In this study, we propose the utilization of a composite microwave (MW)-responsive polypyrrole-modified titanium carbide/zinc oxide (Ti 3 C 2 T x /ZnO–PPy) heterostructure as a potential therapeutic option for MRSA-infected osteomyelitis. In vitro and in vivo experiments show that Ti 3 C 2 T x /ZnO–PPy can effectively treat MRSA-induced osteomyelitis under MW irradiation, which is attributed to the enhanced in situ release of MW heat and reactive oxygen species (ROS). Density functional theory and MW network vector analysis further reveal that under MW irradiation, Ti 3 C 2 T x /ZnO–PPy generates free electrons that move freely within the heterogeneous interface formed by Ti 3 C 2 T x and ZnO, thereby enhancing the accumulation of charges. These charges combine with adsorbed oxygen at the interface to produce ROS. Furthermore, augmented dipole polarization induced by the functional groups on the surface of Ti 3 C 2 T x and the interfacial polarization between Ti 3 C 2 T x and ZnO contribute to good impedance matching and a favourable attenuation constant in the Ti 3 C 2 T x /ZnO–PPy composite, resulting in superior MW thermal properties. Moreover, the polypyrrole-modified composite shows excellent biocompatibility. This efficient antimicrobial system with MW irradiation is expected to offer a viable approach to the management of osteomyelitis.
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APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Jun Yu,Hao Yang,Xiangyu Li,Xupeng Chen,Wenyue Li,Xingang Li,Chun Zhang
Semiconductor photocatalytic technology is recognized as one of the effective technologies for using solar energy to solve current environmental problems. In this study, a Z-scheme heterojunction ZnFe 2 O 4 /Er-ZnO hollow nanotube composite was prepared by hydrothermal method. The results show that the degradation efficiency of tetracycline (TC) in ZnFe 2 O 4 is only 51 %, while the degradation efficiency of ZnFe 2 O 4 /2% Er-ZnO hollow tube composites is as high as 97 %. At the same time, ZnFe 2 O 4 /2% Er-ZnO has a larger specific surface area (specific surface area of 224.39 m 2 · g −1 ), which is 27 times that of ZnFe 2 O 4 (specific surface area of 8.30 m 2 ·g −1 ). Density functional theory (DFT) calculations and experimental analysis show that the doping of Er, the unique hollow structure and the formation of heterojunction make ZnFe 2 O 4 /2% Er-ZnO have a large specific surface area, efficient carrier separation ability and strong redox ability, so the Z-scheme heterojunction ZnFe 2 O 4 /2% Er-ZnO hollow tubular composites have strong degradation ability for tetracycline. In addition, the liquid chromatography-mass spectrometry (LC-MS) analysis technique was used to propose the possible degradation pathways of antibiotics, which provided ideas for the treatment of water pollution.
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高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2017
·Vol. 47
·期 3
·1847-1858
·
IF 1.579
Jing W. X.,Shi J. F.,Xu Z. P.,Jiang Z. D.,Wei Z. Y.,Zhou F.,Wu Q.,Cui Q. B.
Batches of un-doped and Ag-doped ZnO nanowires (ZnONWs) were prepared hydrothermally on stainless steel wire sieves at varied Zn 2+ concentrations of the growth solution and at different Ag + concentrations of the silver nitrate solution. Methylene blue solution was degraded with these as-prepared ZnONWs in the presences of ultraviolet irradiation. It is found that both the processing parameters greatly affect the surface textures, wettability, and photo-activity of the ZnONWs. The latter synthesizing parameter is optimized only after the former one has been finely regulated. The un-doped and Ag-doped ZnONWs at Zn 2+ concentration of 75 mM of the growth solution and at Ag + concentration of3 mM of the silver nitrate solution both produce Gaussian rough surfaces and in each batch are most hydrophilic. Therefore, in the related batch the contacting surface area of the catalyst is the largest, the hydroxyl radicals attached on the top ends of corresponding ZnONWs the most, and the catalytic activity of these catalysts the optimal. Besides these, the latter synthesizing parameter affects the photo-activity of Ag-doped ZnONWs more significantly than the former one does that of un-doped ZnONWs.
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APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Nai Guo,Xianbao Cheng,Sheng Yang,Gaiyun Li,Fuxiang Chu
Fast-growing wood has been widely used in manufacturing decorative material for wood-based panels. However, the deterioration of the decorative quality of the decorative material is still a hard nut to crack. The single decorative function of this material also makes it challenging to meet the requirements of the current consumer market. In this study, a novel method for the preparation of decorative poplar veneer that integrated multiple functions was proposed. It was accomplished via reactive dyeing of poplar veneer followed by in-situ synthesis of ZnO-Ag nanoparticles (NPs) at room temperature. The critical functional parameters and preparation mechanism of the functional decorative material were systematically analyzed. Results demonstrated that ZnO and Ag NPs were synchronously formed through the in-situ redox of metal ions and subsequent self-assembly in an alkaline medium. The ZnO-Ag NPs were uniformly distributed on the surface of dyed wood. The color change of the prepared decorative material was reduced by at least 40 % due to the physical obstruction of the ZnO-Ag NPs layer. More importantly, the antibacterial, hydrophobic, and flame retardant properties of the prepared material were also synchronously improved. This study provided a new approach to improving the quality of wood-based decorative materials.
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危险品化学品经营许可证（带存储）