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.
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Materials Today Chemistry
·
2025
·
IF 6.7
Le Huy Thai,Le Thi Thanh Nhi,Nguyen Minh Hiep,Dinh Thanh Khan,Trinh Ngoc Dat,Le Vu Truong Son,Le Hoang Sinh
A new all-in-one electrochromic device was demonstrated by employing photocurable methacrylated viologen and polyaniline/UiO-66/NiO/ZnO composite (PUNZ). Methacrylated viologen was dissolved in a photocurable deep eutectic solvent to make electrochromic eutectogel. PUNZ film was electrophoresed on ITO glass and was used as an electrode. UiO-66 can play as an electron donor combined with viologen moieties as electron acceptors to form an electron acceptor-donor complex. ZnO nanoflowers provide fast electron transfer leading to fast switching of the ECD. PANI and NiO can play as ion storage materials, which reduces ion trapping. The ECD with the use of PUNZ film can enhance coloration efficiency, lowering internal resistance, and increase ion conductivity. PUNZ120@ITO-based ECD exhibited a bleaching time 213 times faster than that of the device without using PUNZ film. The optical modulation of PUNZ120@ITO-based ECD maintains up to 95 % after 50 cycles, whereas that of the device without PUNZ film is 46 %.
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Small
·
2025
·
IF 12.1
Zhenpeng Cheng,Tianle Wang,Junyan Zhu,Yaqi He,Shijie Liu,Ming-Yu Li,Haifei Lu,Xiaoyan Wen,Jihoon Lee,Sisi Liu,Sui Mao
Adaptive learning capability of optoelectronic synaptic hardware holds promising application prospects in next generation artificial intelligence, and the development of biometric retina perception is sternly hampered by three crucial issues, including well-balance between excitatory and inhibitory, non-volatile multi-state storage, and optimal energy consumption. In this work, a novel Cs 2 AgBiBr 6 /ZnO non-volatile optoelectronic synapse is proposed and successfully programmed with optical excitatory and electronic inhibitory in the light of dual-mechanism: Lead-free perovskite Cs 2 AgBiBr 6 guarantees abundant photogenerated carrier concentration, and the process of carrier capture and release occurs in ZnO layer, which can collaboratively modulate various synaptic plasticity behaviors depending on distinct stimulus. Consequently, multi-bit storage is attained with the dual-mechanism non-volatile memory (DNVM) as a function of consecutive light spikes. The energy consumption of the DNVM is 1.85 nJ at a single light spike, and an ultra-low one of 13.8 fJ is triggered with a single electrical pulse, which approximatively meets the requirement of the biological synaptic event energy consumption. The performance of the DNVM is further evaluated with the Pavlov's classical conditioning experiment and visual hardware system, offering an exciting paradigm for implementing on-chip adaptive visual perception and neuromorphic computing.
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Analytical Methods
·
2024
·Vol. 16
·期 14
·2085-2092
·
IF 2.7
Yue Liu,Guanwen Su,Wei Wang,Hongyuan Wei,Leping Dang
This study proposes a microfluidic platform for rapid enrichment and ultrasensitive SERS detection of bacteria. The platform comprises ZnO nanoflower arrays decorated with silver nanoparticles to enhance the SERS sensitivity. The ZnO nanoflower array substrate with a 3D reticular columnar structure is prepared using the hydrothermal method. SEM analysis depicts the 3.05 μm gap distribution of the substrate array to intercept the most bacteria in the particle sizes range of 0.5 to 3 μm. Then, silver nanoparticles are deposited on the ZnO nano-array surface by liquid evaporation self-assembly. TEM and SEM analysis indicate nanosize of Ag particles, evenly distributed on the substrate, enhancing the SERS efficiency and improving sensing reproducibility. The probe molecules (R6G) are tested to demonstrate the high SERS activity of the proposed microfluidic sensor. Then, Escherichia coli, Staphylococcus aureus, Enterococcus faecalis, and Bacillus subtilis are selected, demonstrating the sensor's excellent bacterial capture and sensitive recognition capabilities, with a detection limit as low as 102 CFU mL−1. Additionally, the antibacterial properties of ZnO/Ag heterojunction nanostructures are studied, suggesting their ability to inactivate bacteria. Compared with the traditional Au-enhanced chip, the sensor preparation is easy, safe, reliable, and low-cost. Moreover, the ZnO nano-array exhibits a large specific surface area, high interception ability, stronger and uniform SERS performance, and effective and reliable detection of trace pathogens. This work provides potential future ZnO/Ag microfluidic SERS sensor applications for rapid, unlabeled, and trace pathogens detection in clinical and environmental applications, potentially achieving breakthroughs in early detection, prevention, and treatment.
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JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
·
2020
·Vol. 108
·期 11
·2190-2205
·
IF 3.525
Yulu Yang,Bailong Tao,Yi Gong,Rui Chen,Weihu Yang,Chuanchuan Lin,Maowen Chen,Lu Qin,Yile Jia,Kaiyong Cai
After bone tumor resection, the large bony deficits are commonly reconstructed with Ti-based metallic endoprosthesis, which provide immediate stable fixation and allow early ambulation and weight bearing. However, when used in osteosarcoma resection, Ti implant-relative infection and tumor recurrence were recognized as the two critical factors for implantation failure. Hence, in this work, a novel zinc oxide nanoparticle decorating with naringin was prepared and immobilized onto Ti substrate. The drugs delivery profiles proved that in the bacterial infection and Warburg effect of osteosarcoma-induced acidic condition, naringin and Zn 2+ can be released easily from the functional Ti substrate. The anti-osteosarcoma and antibacterial assay showed the delivered naringin and Zn 2+ can induce a remarkable increase of oxidative stress in bacteria ( Escherichia coli and Staphylococcus aureus ) and osteosarcoma (Saos-2 cells) by producing reactive oxygen species (ROS). Accumulation of ROS results in damage of bacterial biofilm and bacterial membrane, leading to the leakage of bacterial RNA and DNA. Meanwhile, the increase of ROS induces osteosarcoma cell apoptosis by activating ROS/extracellular signal-regulated kinase signaling pathway. Furthermore, in vitro cellular experiments, including cell viability, alkaline phosphatase activity, collagen secretion, extracellular matrix mineralization level, indicated that the functional Ti substrate exhibited great potential for osteoblasts proliferation and differentiation. Hence, this study provides a simple and promising strategy of developing multifunctional Ti-based implants for the reconstruction of large bony after osteosarcoma resection.
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MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Lei Zhang,Zhen Zhao,Hongming Zhang,Wanli Jiao
To detect trace hydrogen sulfide (H 2 S) safely, more sensitively and less expensively, a new synthesized ZIF-8-derived ZnO-supported Ag nanoparticle assemblies have been investigated. In the successful formation, ZIF-8 was synthesized in room temperature aqueous solution, followed by ultrasonication to produce Ag + /ZIF-8 compounds, and yielded Ag/ZnO assemblies after sintering. Various characterizations have been done to confirm the morphology, surface chemical state and electron distribution by XRD, SEM, XPS, BET and DRIFT. The sensing test results indicate that at an exciting operating temperature of 100 °C, the A-2 labeled sensor exhibits excellent H 2 S detection capabilities, including a response value of 104 for 2.5 ppm H 2 S, the minimum detection limit of 1.1 ppb, satisfied selectivity, significant resilience against humidity and long time stability. More significantly, a valuable test of 140 h real time detection of the H 2 S emission from fresh fish meat has been performed successfully, providing effective data for protein spoilage assessment. Rhombic dodecahedron structure, catalysis of Ag nanoparticles and overflow effect of H 2 S result in the distinct sensing mechanism, providing novel insights and theoretical foundations for developing highly efficient trace H 2 S gas sensors.
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APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Huayi Cai,Hui Zhang,Nan Gao,Yi Fang,Xinjian Xie,Yulong Fang,Guifeng Chen
Exploring green methods for removing organic pollutants from water bodies has attracted significant attention. In this research, N-ZnO/p-BN adsorption-photocatalytic composites were prepared by a simple solvothermal method, and various analytical characterizations confirmed the formation of B-O-Zn bonds at the heterojunction interface that facilitated the separation of photogenerated carriers and revealed a type-II mechanism of charge transfer in the heterostructure. The photodegradation efficiency for oxytetracycline (OTC) by composites with different N-ZnO loadings was investigated under simulated sunlight, and the degradation efficiency of the optimal sample (50 wt% N-ZnO/p-BN) for 50 mg/L OTC reached 92.2 % at 120 min. Efficient pollutant enrichment, broadened light absorption range, high dispersion of the photocatalysts, and effective charge migration are all important factors for improving photocatalytic activity. Furthermore, the photocatalytic process was further investigated, experiments showed that the N-ZnO/p-BN composites were universally applicable under a variety of conditions and possessed the characteristics of low dosage and high degradable concentration. Finally, a rational photocatalytic mechanism was proposed for the degradation system and the degradation pathways of the main degradation model OTC were analyzed and deduced. Therefore, this study provides new ideas for designing high-performance adsorption-photocatalytic composites.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Mengshi Chen,Zihan Kang,Jiang Wu,Ni Qin,Dinghua Bao
The construction of recyclable films with unique morphology and piezoelectric-enhanced photocatalytic performance is of great significance for wastewater purification. Here, inverse opal structured ZnO@TiO 2 nanocomposite film were prepared by template method and chemical water bath method. The piezo-photocatalytic properties of the obtained ZnO@TiO 2 nanocomposite films were evaluated by the degradation of organic dyes. The results showed that the piezo-photocatalytic constant rate of the ZnO@TiO 2 nanocomposite films under the synergistic action of ultrasound and ultraviolet light reached 52.3×10 −3 min −1 , much higher than those of the pure inverse opal TiO 2 framework under same condition (6.6×10 −3 min −1 ) and the ZnO@TiO 2 nanocomposite films under only ultraviolet light (10.1×10 −3 min −1 ) or only ultrasound (2.0×10 −3 min −1 ). It is believed that the inverse opal structured TiO 2 framework not only provides an open space for ZnO nanorods growth, but also initiates redox reaction for dye degradation through generation and transfer of photo-generated carriers under ultraviolet irradiation. Meanwhile, the ZnO nanorods can efficiently promote carrier separation by piezoelectric polarization electric field and interface contact induced band tilting with TiO 2 , thus significantly improving the piezo-photocatalytic activity. This work provides a novel route for reasonable design of recyclable and efficient piezo-photocatalytic films.
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CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Yanghai Gui,Shuaishuai Zhao,Kuan Tian,Jintao Wu,Huishi Guo,Xiaoyun Qin,Xiaomei Qin,Dongjie Guo,Guangwen Zheng,Yao Guo
N-methyl pyrrolidone (NMP) is an important organic compound that is widely used in many industrial fields. Due to its volatility and toxicity, the detection of NMP content becomes crucial. Plasma treatment is an efficient method that utilizes high-energy ions generated by plasma to change the surface properties of materials, which can dramatically improve the performance of gas sensors. In this paper, ZnO nanorods were in-situ grown on ceramic tubes via hydrothermal method, followed by oxygen plasma treatment for different time, and the gas-sensing performance of the treated ZnO nanorods was investigated. In addition, the density functional theory calculation was used to explore the potential mechanism for the improvement of gas-sensing performance. The results show that ZnO treated with oxygen plasma for 60 s has more oxygen vacancies (45.53 %) and higher adsorption energy (−1.06 eV) to NMP. The ZnO-60 gas sensors have excellent selectivity to 100 ppm NMP at 210 °C, with a response value up to 197.58, low detection limit (94 ppb), and short response/recovery time (75 s/27 s). This study not only provides important theoretical and experimental basis for further optimizing the design and manufacture of gas sensors, but also provides strong support for environmental monitoring and human health protection.
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Materials Today Sustainability
·
2025
·
IF 7.9
Pengyuan Guan,Yongjie Zhao,Yihui Wu,Weixian Li,Xiao Zhang,Xiang Gao,Xiaoxia Ou,Wai Siong Chai,Yinfeng He,Hao Nan Li
CuO–ZnO–ZrO 2 catalyst attracted significant attention for CO 2 hydrogenation to methanol. Gyroid-based triply period minimal surface lattice structures feature highly ordered porous networks, which could be used to enhance catalytic performance and efficiency. This paper presents a formulating and one-step calcination strategy that united the removal of polymer resin and calcination of catalyst precursor at one temperature. This enabled 3D printing gyroid-structured CuO–ZnO–ZrO 2 catalyst for CO 2 hydrogenation while minimizing the impact of overheating on the catalyst performance. A photocurable formulation loaded with CuO–ZnO–ZrO 2 precursor was developed. Using the optimized formulation, gyroid structures with varying pore sizes were successfully printed and calcined. The optimal lattice wall thickness that balances porosity and structural stability was identified. The results indicate that the resin used for 3D printing was successfully removed at a lower temperature and the catalytic activity of the 3D-printed structured catalyst was retained through the one-step calcination process while the gyroid lattice geometry can enhance catalytic efficiency than cylindrical structure.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Tao Wei,Cheng Sun,Xingtong Guo,Yanyan Zhou,Mengting Wang,Xiangyun Qiu,Qian Wang,Yongfu Tang
The application of lithium metal anode (LMA) is hindered by its poor cycle life which could be caused by lithium dendrite and critical volume change during cycling. Our group previously proposed an intermittent lithiophilic model for three-dimensional (3D) composite LMA, however, the lithium electrodeposition behavior was not discussed. To verify this model, this work proposed a facile design of a petaloid bimetallic metal–organic frameworks (MOFs) derived ZnCo 2 O 4 /ZnO (ZZCO) nanosheets modified carbon cloth (CC), i.e. CC@ZZCO, as a 3D host to achieve the intermittent deposition of lithium (Li). The material characterizations, density functional theory (DFT) calculations, lithium electrodeposition behaviors, and the electrochemical tests were investigated and the intermittent lithium deposition behavior was firstly confirmed. Thanks to the intermittent lithiophilic model, the composite LMA enabled a prolonged lifespan of 1500 h in a symmetrical cell under challenging conditions of 5 mA h cm −2 and 5 mA cm −2 , and can maintain stable at 10C with an ultrahigh specific capacity of 110 mAh/g. Furthermore, it can also be coupled with a LiNi 0.5 Co 0.2 Mn 0.3 O 2 (NCM523) and a high surface load of LiFePO 4 (LFP) cathode (11.5 mg cm −2 ). This research might open a window for the understanding of the Li deposition behavior and pave the way to develop other alkali-metal-ion batteries.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Ruijie Ma,Tong Xue,Tianci Han,Chaoxia Wang,Yunjie Yin
Global energy demands and climate change challenges have highlighted the need for sustainable and energy-efficient solutions, driving interest in personal thermal management (PTM) technologies. Traditional PTM systems, however, rely on unidirectional thermal regulation, limiting their adaptability to fluctuating ambient conditions and humidity gradients. To overcome these limitations, we engineered a Janus Nano-ZnO/rGO nonwoven fabric (NZr@NF) that combines dynamic bidirectional thermal regulation with unidirectional sweat transport. The cooling side, featuring in situ grown Nano-ZnO layers, achieved high solar reflectance (88.49 %) and infrared emittance (94.20 %), allowing for net radiative cooling power of up to 100.38 W·m −2 . The heating side, functionalized with PDMS@rGO composites, demonstrated remarkable solar absorptance (94.86 %). Compared with the raw fabric, outdoor measurements demonstrated that it achieved an additional cooling effect of 6.27 °C and an additional heating effect of 17.1 °C. This Janus NZr@NF also excelled in moisture-wicking, achieving a cumulative one-way moisture transport index of 442.1 %, effectively mitigating post-sweat discomfort by facilitating evaporation and heat dissipation. With its ultraviolet (UV) resistance, breathability, and moisture permeability, this multifunctional metamaterial provides an innovative direction for wearable energy-saving PTM fabrics.
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