SURFACE & COATINGS TECHNOLOGY
·
2023
·
IF 5.4
Jian Zhang,Hongxing Lu,Peng He,Zijie Ren,Guofang Shen,Ruxia Liu,Lei Wang,Guoqiang Luo
This study presents a facile electrodeposition and annealing procedure for the fabrication of Ni-Mo-Cu catalysts for hydrogen evolution reaction . Cu addition augmented the surface area and conductivity, while the synergistic effect of the three elements enhanced the intrinsic catalytic activity. After annealing in a vacuum at 300 °C, a dense Cu-Ni solid solution was formed on the catalyst surface, which improved the distribution of components and led to a significant improvement in corrosion resistance . Compared to the directly deposited Ni-Mo catalyst, the annealed Ni-Mo-Cu catalyst exhibited a reduced overpotential of 143 mV to generate a current density of 10 mA cm −2 in 1 M KOH at 25 °C, and its corrosion current density diminished from 0.21 to 0.035 mA cm −2 in 0.5 M NaCl at 25 °C.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2023
·
IF 4.2
Xuerui Yang,Zihao Wan,Sen Lin,Lei Zhou
In this study, a novel strategy was exploited to prepare an ultra-efficiency NiCoMn-layered double-hydroxide (NiCoMn-LDH) catalyst for the recycle of valuable elements in spent lithium-ion batteries. Based on the developed hydrometallurgical leaching method, avoiding the drawback of separation and purification procedures, it was stated that the elements of Ni, Co, and Mn could be synchronously extracted from the spent cathode powder in less than 20 min with leaching efficiencies exceeding 98.9%. NiCoMn-LDH with a uniform flake structure was synthesized successfully from the leaching solution by a co-precipitation method and the element precipitation efficiencies all exceeded 99% in the preparation process. NiCoMn-LDH exhibited a great tetrabromobisphenol S (TBBPS) degradation performance as a peroxymonosulfate (PMS) activator, TBBPS could be degraded completely in less than 100 s with an extremely low dosage (catalyst 10 mg/L and PMS 0.1 mmol/L, pH 5.6), and NiCoMn-LDH still kept a good stability after multiple reuse. Besides, ECOSAR predicted the toxicity of degradation products declined with the decrease of bromine substituents, reflecting the environmental friendliness of NiCoMn-LDH from spent lithium-ion batteries.
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Frontiers in Bioengineering and Biotechnology
·
2023
·
IF 5.7
Zhang Peng,Sun Yusheng,Yang Haizhen,Liu Dong,Zhang Feng,Zhang Yu,Zhong Wentao,Zuo Baoqi,Zhou Zhiqiang
Introduction: Chronic osteomyelitis remains a clinical challenge in orthopedics.Methods: In this study, silk fibroin microspheres (SFMPs) loaded with vancomycin are entrapped in an injectable silk hydrogel to form a vancomycin delivery system for treatment of chronic osteomyelitis.Results and Discussion: Vancomycin showed continuous release from the hydrogel for up to 25 days. The hydrogel shows strong antibacterial activity against both Escherichia coli and Staphylococcus aureus and a long antibacterial duration of 10 days without a decrease in the antibacterial effect. The injection of vancomycin-loaded silk fibroin microspheres entrapped in the hydrogel into the infected site of rat tibia reduced bone infection and improved bone regeneration compared with other treatment groups.Conclusion: Thus, the composite SF hydrogel features a sustained-release profile and good biocompatibility, making it promising for application in osteomyelitis treatment.
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PubMed
高影响因子
Small
·
2023
·Vol. 19
·期 36
·2302354
·
IF 13.3
Zicong Jin,Bihao Zhuang,Jiahuan Deng,Songyang Yuan,Hui Xiong,Yangyi Zhang,Jiandong Fan,Wenzhe Li
Low-dimensional organic–inorganic hybrid perovskites (OIHPs) with broadband emission attract immense scientific interest due to their potential application for the next generation of solid-state lighting. However, due to low exciton utilization, organic cations generally adjust structure rather than contribute the band edge to affect optical properties. Based on this, OIHPs are usually allowed to obtain a low photoluminescence quantum yield (PLQY). Herein, a good charge transfer carrier (p-phenylenediamine, PPDA) as organic cation is rationally employed and a novel indium-based perovskite is synthesized. By coupling with H 2 O molecules, a strong interaction between organic and inorganic components is realized by hydrogen bonding, which has good transportability and greatly improves the exciton utilization. The regions of hydrogen bonding show high electron mobility, combined with the induced recombination center, improving the progress of charge relaxation. As a result, the regulation of hydrogen bond strength based on the microstructure optimization directly determines the optical emission intensity, realizing nearly 100% PLQY. Further, the polyhydrogen bond structure makes each component a stronger interaction, showing high stability in polar, organic, and acidic solvent, as well as long-term storing, which represents one of the highest overall performances for lighting in OIHPs.
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PubMed
高影响因子
ACS Food Science & Technology
·
2021
·
IF 0
Lingfeng Xu,Ying Zou,Mei Zeng,Siqi Duan,Kui Wu,Runlin Han,Limin Liu
Noninvasive and effective viscosity inspection during the deterioration process is expected to ease the burden of foodborne illnesses, since viscosity is closely related to spoilage extent. In this study, a novel molecular rotor, DPMBEQ, was developed to monitor the beverage microenvironmental viscosity alterations to achieve food safety inspection. This rotor comprised the typical triphenylamine donor and quinolinium acceptor and displayed aggregation-induced emission features, with a large Stokes shift of 184 nm in glycerol. DPMBEQ possesses a highly sensitive response toward viscosity change and features with good photostability and high selectivity in complex media. With the assistance of the fluorescent analytical technique, DPMBEQ achieved identifying the thickening effect of food gum. More importantly, DPMBEQ was explored to visualize viscosity variations during the beverage deterioration process. We expect that our trial can facilitate the continued perfection of food analytical methods toward food quality and safety inspection.
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Advanced Materials Interfaces
·
2021
·Vol. 9
·期 1
·2101515
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IF 6.147
Haoran Li,Xiaolong Chen,Wenpeng Hong,Yan Li,Boyu Li
Natural freezing at a low temperature poses fatal threats to aircraft, cables, and plants. Accelerating the rebound of the impacting droplet is an important approach to reduce ice accretion on the solid surface. Herein, a superhydrophobic copper myristate surface with a static contact angle of 158° is prepared to study the dynamic behaviors of the impacting droplet on the inclined surface. For the first time, the sudden contraction of the impacting droplet, especially in the cases at a high Weber number, is reported. With the increase of the Weber number, after reaching the maximum wetting diameter, the contraction process changes from direct contraction to sliding at first and then contracting while maintaining the maximum wetting diameter. Further investigations confirm that the sudden contraction of the trailing edge is the underlying mechanism for accelerating the droplet rebound. This discovery provides new insight and explanation for the dynamic evolution of impacting droplets on the inclined superhydrophobic surface.
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Sustainable Energy & Fuels
·
2021
·Vol. 6
·期 3
·693-699
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IF 6.367
Chao Chang,Xiaoyu He,Zhaoyang Han,Lilin Pei,Zongyu Wang,Yulong Ji
Developing energy harvesting and conversion technology is of great significance to mitigate the energy crisis and realize the sustainable development of human society. In this work, we designed and fabricated a thermal energy harvesting and conversion device by integrating a tube-based triboelectric nanogenerator (TENG) into a copper oscillating heat pipe (OHP). The tube-based TENG was composed of two copper electrodes uniformly distributed along a polytetrafluoroethylene (PTFE) tube. The copper OHP with an inner diameter of 2 mm had 6 turns and deionized water (DI) was chosen as the working fluid. When thermal energy was added to the OHP, liquid plugs in the OHP were thermally excited and flowed into the PTFE tube, resulting in the generation of an alternating flow of electrons between the two electrodes. This TENG-OHP system successfully generated more than 7.0 V of open-circuit voltage and more than 0.32 μW of output power. The generated electrical energy can be used to power many small electronics, such as capacitors and light-emitting diodes (LEDs). Therefore, these findings will offer an alternative approach to harvest and convert thermal energy heat in many devices or systems that involve the heat generation and heat transfer process.
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Biomaterials Science
·
2021
·Vol. 10
·期 2
·524-535
·
IF 6.843
Xing Qin,Limei Qin,Jianping He,Qinghua Wang,Yongsheng Li,Dechao Niu
An ideal drug delivery system must have a high level of stability to ensure effective circulation and passive aggregation, good retention performance, and dynamic delivery and treatment monitoring. Thus, the development of a smart drug delivery carrier with both precise drug release and real-time detection remains a challenge. Herein, we propose a confined crosslink protocol to prepare an intelligent hybrid delivery system for auto-fluorescent monitoring, protonation-induced retention and precise drug release. The construction of this system involves the hydrolysis and condensation of (3-aminopropyl)triethoxysilane (APTES) silanes inside the Pluronic polymer micelles and thereafter a confined Schiff base crosslinking between glutaraldehyde (GA) and residual silane amino groups. The size of the intelligent docetaxel (DTX)-loaded nanosystem changes from ∼25 nm in blood circulation or normal tissues (pH ∼ 7.4) to ∼250 nm in slightly acidic environments (pH ∼ 6.5–7.0) owing to intra-molecular hydrogen bond-induced aggregation and imine cleavage-induced disintegration in the endosome (pH ∼ 5.0–6.2) along with auto-fluorescent monitoring contributing to the high-efficiency chemotherapy. This work provides a new method to construct smart, acid-responsive and fluorescent-guided drug-delivery carrier systems for efficient and safe tumor chemotherapy.
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BIOSENSORS & BIOELECTRONICS
·
2021
·
IF 10.618
Zhuoyue Zhou,Zhao Yang,Li Xia,Houjin Zhang
Chiral analysis of amino acids (AAs) is of great importance in medical science due to the distinctive effect of AA isomers on human health. Although various chiral recognition techniques have been developed, the quantitative chiral recognition of low-level AA isomers remains challenging. Here, we combined the fiber optic SPR with an enzyme-substrate recognition mechanism to construct a direct-assay-type chiral AA biosensor. As a proof-of-concept attempt, a recently discovered Rasamsonia emersonii D-amino acid oxidase (ReDAAO) with a wide substrate spectrum and high stability was immobilized on the graphene oxide and gold nanorods composites (GO-AuNRs), using both EDC/NHS coupling and the gold-binding peptide (GBP) method. Such a biosensor can distinguish two AA isomers at the same concentration. It achieved specific detection of D-amino acids (D-AAs) with a linear range from 5x10 -4 mM to 30 mM. Furthermore, it showed good resistance to enantiomeric interference. When the percentage of D-AA increases in the isomer mixture, a good linear relationship between the D/(D + L)-AA ratio and SPR spectral shift was obtained. This unique combination of the enzyme , nanocomposite , and SPR taps into the rich reservoir of proteins for chiral receptors. It lays the foundation for protein-based chiral recognition of other clinically important small molecules in future biosensor designs.
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Small
·
2021
·Vol. 18
·期 5
·2104401
·
IF 13.281
Cheng-Yi Zhu,Jing-Kai Qin,Pei-Yu Huang,Hai-Lin Sun,Nie-Feng Sun,Yan-Lei Shi,Liang Zhen,Cheng-Yan Xu
2D van der Waals (vdW) semiconductors hold great potentials for more-than-Moore field-effect transistors (FETs), and the efficient utilization of their theoretical performance requires compatible high- k dielectrics to guarantee the high gate coupling efficiency. The deposition of traditional high- k dielectric oxide films on 2D materials usually generates interface concerns, thereby causing the carrier scattering and degeneration of device performance. Here, utilizing a space-confined epitaxy growth approach, the authors successfully obtained air-stable ultrathin indium phosphorus sulfide (In 2 P 3 S 9 ) nanosheets, the thickness of which can be scaled down to monolayer limit ( ≈ 0.69 nm) due to its layered structure. 2D In 2 P 3 S 9 exhibits excellent insulating properties, with a high dielectric constant ( ≈ 24) and large breakdown voltage ( ≈ 8.1 MV cm −1 ) at room temperature. Serving as gate insulator, ultrathin In 2 P 3 S 9 nanosheet can be integrated into MoS 2 FETs with high-quality dielectric/semiconductor interface, thus providing a competitive electrical performance of device with subthreshold swings (SS) down to 88 mV dec −1 and a high ON/OFF ratio of 10 5 . This study proves an important strategy to prepare 2D vdW high- k dielectrics, and greatly facilitates the ongoing research of 2D materials for functional electronics.
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CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Jichen Jia,Naiwei Gao,Ruiting Li,Shenglong Liao,Shanzhi Lyu,Yapei Wang
Casualties and severe damages of environmental resources resulted from wildfires are to some extent caused by belated evacuating personnel and fighting fires. It is considered that if the timely detection of the high temperature signal can be achieved in the early stage of fire disaster, the duly rescue actions brought by the early fire alarming can extensively avoid casualty accidents and the detrimental fire spread. Therefore, in this work, we fabricate a cross-linked polycaprolactone (PCL) network, and based on its shape memory property and subsequent electroless deposition process, we prepare a smart conductor with ability of switching between non-conductive and conductive at low and high temperatures respectively. Outdoor experiments present that this electrically “OFF-to-ON” conductor can effectively respond to a fire and play a crucial role in early fire alarming under simulated fire scene. The finite element analysis simulation results further prove the advantages of this material over the traditional thermocouple in detecting temperature changes.
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Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Jialing Li,Qianlan Huang,Zhiyuan Peng
A highly effective ligninsulfonate-tannin adsorbent (LTA) with natural antibacterial activity was developed for the removal of methylene blue (MB) from wastewater. The results of Fourier transform infrared spectroscopy (FTIR) and x-ray photoelectron spectroscopy (XPS) showed the cross-linking reaction between CL and BWT, the results of scanning electron microscope (SEM) showed a granular structure of LTA with a rough surface. The saturation adsorption capacity of LTA for MB is 629.5 mg∙g −1 , and the adsorption process is a heat-absorbing, spontaneous process corresponding to the Langmuir isothermal and the pseudo-second-order kinetic adsorption model. Density functional theory (DFT) calculations were used to further elucidate the adsorption mechanism, which was the synergistic effect of amino groups in methylene blue with phenolic hydroxyl group and sulfonic acid group in LTA. It is unexpected to find that LTA retained the natural antibacterial activity of tannins, and inhibition of E. coli and S. aureus with 80.0% and 82.0%. Thus, LTA has a high value in the removal of dyes and biological contamination from wastewater due to its excellent adsorption capacity, and natural antibacterial properties.
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