SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Zijian Li,Zijie Tang,Jilin Yan,Hao Peng,Yifeng Tu
Stroke, or cerebral apoplexy, is a paroxysmal disease that seriously threatens the neurological functions of middle-aged and older men, resulting in high rates of disability and mortality. The blood level of Corin can accurately predict the risk and subtype of stroke. Herein, an immunosensor was developed utilizing a nanocomposite of Au nanoparticles and Co 3 O 4 nanocubic cages (AuNPs/Co 3 O 4 NcC) as the sensing substrate, with luminol serving as the sensing probe for Corin detection. Through the application of 3-aminopropyltrimethoxysilane, AuNPs/Co 3 O 4 NcC was affixed to the surface of indium tin oxide (ITO)-coated glass, considerably enhancing the electrochemiluminescence (ECL) performance of luminol due to its peroxidase-like activity. To confer biological specificity by immobilizing the Corin antibody on this substrate and to block residual active sites with bovine serum albumin, an immunosensor was developed. The capture of Corin protein by the antibody through an immune reaction, leading to its binding on the sensor, resulted in a decreased ECL signal. Under optimized conditions, the proposed ECL immunosensor demonstrated a broad linear response range from 1 pg/mL to 4800 pg/mL and a low detection limit of 0.26 pg/mL. This ECL immunosensor is characterized by its specificity, stability, and reproducibility and can detect Corin in real blood samples.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Lechen Yang,Yong Li,Dajun Huan,Chunling Zhu
To address the hazards posed by icing environments on flight safety, a series of anti-icing measures for aircraft have gradually developed. However, with the continuous enhancement of aircraft aerodynamic performance, especially the desire for engines and propellers to achieve higher fuel efficiency, optimization of modern aircraft anti-icing protection systems is required. Here, a method was proposed for creating a robust superhydrophobic photothermal coating with a micro-nano hierarchical structure by spraying on ice-prone areas of the aircraft, aimed at reducing the high energy consumption and cost of anti-icing systems. The superhydrophobic structure on the coating surface exhibited a static water contact angle of 159.5° and extremely low liquid adhesion, demonstrating excellent stability after mechanical wear, chemical corrosion, and ultraviolet irradiation tests. This structure allowed droplets to rebound quickly upon impact with the coating and completely detach within 11 ms, and could significantly delay the icing time of droplets on the coating surface in low-temperature environments, showing good anti-icing performance. The photothermal conversion performance of the coating ensured effective self-deicing under sunny conditions. Furthermore, icing wind tunnel tests validated the coating's anti-icing performance and photothermal effects, revealing that this coating could significantly reduce ice accumulation thickness. The results of this study provide options for achieving a low-energy, low-cost, and sustainable aircraft anti-icing protection system, conducive to the development of new anti-icing technologies.
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高影响因子
Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 28
·10635-10645
·
IF 5.7
Jie Liang,Huinan Zhang,Qingchao Zhang,Yanli Liu,Bo Li,Junbin Zang,Xiyuan Cao,Zhidong Zhang,Libo Gao,Chenyang Xue
Electronic skin (e-skin) aims to mimic human skin functions, which could profoundly affect medical care and robots. However, it still faces challenges in simultaneously detecting and distinguishing pressure and temperature signals in real-time. Herein, a simple and sustainable strategy is proposed to fabricate a reduced graphene oxide (rGO)-coated wood sponge (rGO@WS) for a multifunctional sensor with high pressure and temperature properties. The prepared porous wood sponge presents high elasticity and superior durability. The added rGO endows the sponge with high conductivity and excellent fatigue resistance. The proposed sensor can realize high sensitivity (1.18 kPa−1), a large pressure range (0.2–100 kPa), a low detection limit and can also detect the temperature with a minimal detection limit of 0.6 K and a response time of 0.8 s. Due to the different response principles of piezoresistive and thermoelectric effects, pressure sensing performance and temperature sensing performance are independent. Meanwhile, a 4 × 4 pixel sensing array based on the rGO@WS sensor is fabricated to serve as e-skin to detect and distinguish pressure and temperature signals. This work sheds new light on the development of wearable devices and e-skin for health care.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2024
·Vol. 48
·期 15
·6723-6732
·
IF 2.7
Min Sun,Yu Zhang,Zhijun Liang,Rui Zhang,Kai Zhang,Yanhong Lin,Dejun Wang,Tengfeng Xie
Supercapacitors often deliver a significantly high-power density with a long cycling life but low energy density. An exceedingly promising approach is to construct asymmetric supercapacitors (ASCs) reconciling the compromise between power density and energy density. However, ASCs combining transition metal oxides (TMOs) and activated carbon (AC) struggle to improve energy density due to a vast difference in their specific capacitance. To cross this hurdle, we first proposed a new strategy to construct the ASCs with α-MoO3 as the anode and conductive polymer polypyrrole (PPy) as the cathode. The remarkable features of α-MoO3, including its layered structure and ultra-high specific capacitance, along with the stability and fast charge–discharge ability of PPy, have contributed significantly to the augmentation of power density and energy density in ASCs. Taking advantage of these bright features, the operation voltage for α-MoO3//PPy is effectively expanded to 2.0 V, exhibiting a high energy density of 25.9 W h kg−1 at 1538 W kg−1. Furthermore, the energy density presented a remarkable recovery rate, reaching 91.04% of its initial state after undergoing full rate tests. These conclusions reveal that the construction of α-MoO3//PPy can effectively enhance the energy density and power density of supercapacitors.
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高影响因子
FUEL
·
2024
·
IF 6.7
Ce Li,Tianyao He,Jie Yan,Guobo Li,Wenming Liu,Hongxiang Zhang,Jian Chen,Jiqing Lu,Shule Zhang,Honggen Peng
The supported Pt-based catalysts exhibited excellent catalytic oxidation activity towards toluene, while the Pt metal was prone to aggregation at high temperatures, leading to catalyst sintering deactivation. A combination strategy was presented to enhance the reactivity and lifespan of catalysts for toluene catalytic oxidation in this work, which involved regulating the morphology and microstructure of Pt@D-Beta through a combination of recrystallization Pt confinement and zeolite dealumination to improve the stability and water resistance of the catalyst. The designed Pt@D-Beta catalyst with T 90 (temperatures for 90 conversion of toluene) at 158 °C was prepared by combining carrier dealumination and secondary crystallization method, which was 22 °C lower than that of traditional Pt/Beta. Importantly, the Pt@D-Beta catalyst exhibited excellent cycling performance and long-term stability, and great water resistance. After 5 cycle tests, the toluene conversion could also be maintained at ∼ 85 % for at least 50 h with slight activity loss. The results of SEM and XPS show that a combination of recrystallization Pt confinement and zeolite dealumination could improve the reduction performance of the catalyst, increase the dispersion of Pt on zeolite and oxygen mobility, and improve the catalytic performance of the catalyst for toluene. The toluene catalytic degradation on Pt@D-Beta was researched via in situ DRIFTs ( in situ diffuse reflectance infrared Fourier transform spectroscopy) combination with density functional theory (DFT) calculation, the hydroxyl groups on the catalyst can provide active oxygen for toluene catalytic oxidation, followed the Mars-van Krevelen (MvK) mechanism. This synthesis combination strategy is expected to provide an effective method for designing efficient zeolite limited noble metal catalysts for catalytic degradation of VOCs.
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高影响因子
Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Minghui Bai,Ruichong Chen,Xian Liu,Haoying Li,Jing Li,Heping Huang,Man Song,Qiuping Zhang,Yuanjie Su,Haomin Wang,Ming Xu,Guangzhong Xie
The tide of new energy vehicles and modern semiconductor devices releases a myriad of graphite anode and graphite target wastes. Recycling graphite wastes for catalysis preparation turns out to be a win-win and efficient way to deal with rampant environmental pollution. In this work, a graphite target waste was efficiently recycled into 2D few-layer graphite as the raw materials for the subsequent synthesis of nanoscale photocatalysts. The as-developed photocatalyst demonstrates a gain of 19 % in photocatalytic efficiency and superior photostability in sunlight-driven photodegradation of organic pollutants. Furthermore, the impact of temperature and pH value on the photocatalytic degradation efficiency was systematically investigated. The work affords an effective strategy for high-efficiency waste reclamation through full utilization of the graphite target wastes.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Zelong Jiang,Tao Hu,Fanchao Men,Hong Yang,Wei Lv,Dawei Wen,Qingguang Zeng,Yan Gao
The pursuit of efficient red emitting Eu 2+ doped oxide is endless, aiming to replace the state-of-the-art CaAlSiN 3 :Eu 2+ nitride counterpart to achieve cheaper and more stable warm illumination. Herein, we identify a hitherto unreported CaLuGaO 4 olivine compound. The crystal structure of the compound is belong to orthorhombic Pnma . Phonon dispersion relations have no imaginary frequency, verifying thermodynamic stability of the crystal structure. It structurally contains an octahedral Ca 2+ site that definitely has strong crystal field splitting energy, which motivates us to incorporate it with Eu 2+ to realize red emission through 4 f 6 5 d 1 → 4 f 7 transition of the octhdedral Eu 2+ ion. This goal is achieved as found the divalent Eu 2+ is necessarily stabilized in this site under CO sintering atmosphere rather than H 2 /N 2 . The as-designed CaLuGaO 4 :Eu 2+ exhibits impressively appealing properties, i.e., intense red emission at 650 nm (λ ex = 450 nm), with high PLQY up to 86 % and good thermal stability in temperature range 10–500 K, marking it as a promising and formidable red phosphor in warm illumination. The excellent emission properties are theoretically revealed to associate with the closed-packed dimensional crystal structure with high Debye temperature equals 440 K, which reduces the non-radiative recombination loss. The investigations in electron-vibrational interaction in the Eu 2+ :5 d state disclosing the interaction is intermediate coupling regime with Huang-Rhys factor of 4.3. As a proof-of-concept experiment of the red phosphor for illumination, a prototype WLED possession of low CCT = 3917 K, high Ra = 92.2, and excellent luminous efficiency = 110 lm/W is constructed, and a portable rechargeable LED flashlight is assembled, by utilizing CaLuGaO 4 :Eu 2+ phosphor as a key red convector. Moreover, we have also demonstrated the phosphor synthesized under H 2 /N 2 can apply for latent fingerprint visualization.
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高影响因子
Environmental Technology & Innovation
·
2024
·
IF 6.7
Mengyao Pan,Yuwei Jin,Yanli Ye,Wenbin Jiang,Lisha Zhu,Wangyang Lu
Silk is a promising textile resource, but its degumming treatment still lacks efficient and non-polluting methods. In this paper, an innovative silk degumming process combining microwave pre-treatment and steam degumming is introduced. When the technical parameters of microwave-steam synergistic degumming were 10 min of microwave, 120 ℃ of steam temperature, and 30 min of steam time, the degumming efficiency of the specimen was three times of the traditional Na 2 CO 3 degumming method, and the energy consumption was only one-half of the traditional method. In terms of time efficiency, the traditional Na 2 CO 3 degumming took 2.75 h, while this novel method took only 0.75 h. Among the samples, the mechanical properties of the specimens treated with microwave for 10 min were the best, with the warp breaking strength of 542.20 N and the weft breaking strength of 356.19 N. Meanwhile, the hygroscopicity and air permeability were also the best compared to the traditional treating samples. This indicates that microwave-steam synergistic degumming technology is a clean technology with the advantages of high sericin degumming rate, short degumming time, low energy consumption, and no use of any chemicals. This method is conducive to achieving better and faster sustainable development.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Na Wang,Kai Liu,Anran Xu,Hong Li,Zhenyu Zhao,Xiaolei Fan,Xin Gao
Biorefinery of lignocellulosic biomass to produce biofuels for replacing fossil resources is a major topic of energy conservation and carbon reduction. The efficiency of such biorefinery processes relies on the pretreatment of biomass, which is, however, the most energy-consuming step in the bio-conversion processes. To answer the demand of clean and efficient production in modern era, this study proposed a microwave (MW)-assisted route to pretreat corn stover (for fractionation) using a green cosolvent system consisting of ethyl lactate (EL) and water, and sulfonated activated carbon particles (AC-SO 3 H) were used to improve the MW absorbing ability and process efficiency. Based on the systematic investigation of the effect of operating parameters on fractionation of corn stover, 81.7 % of hemicellulose and 85.3 % of lignin were separated from the raw corn stover with 80.9 % of cellulose retained under optimal conditions of 160 ℃ for 40 min with 0.3 g AC-SO 3 H catalyst in EL/H 2 O cosolvent (EL/H 2 O = 3/2). The proposed EL/water cosolvent showed much higher efficiency than that using either pure EL or water, and in situ production of lactic acid (LA) and ethanol (EtOH) (via EL hydrolysis under acid environment) can benefit the pretreatment process. Compared to conventional heating, the MW method shortened the treatment time by half to obtain similar separation results. The improvement of the MW absorption ability and catalytic activity for this proposed pretreatment method was proven by control experiments, achieving effective disruption of the biomass structure and the accessibility of solvents to hemicellulose and lignin.
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高影响因子
Materials
·
2024
·Vol. 17
·期 21
·5145
·
IF 3.1
Siqi Lv,Yujian Liang,Xuezhen Zhang,Xiaomei Tan,Zuotan Huang,Xuan Guan,Chongmin Liu,Zhihong Tu
Pyrite is one of the most abundant metal sulfide tailings and is susceptible to oxidation, yielding acidic mine drainage (AMD) that poses significant environmental risks. Consequently, the exploration of pyrite surface oxidation and the kinetic influencing factors remains a pivotal research area. Despite the oxidation of pyrite producing a significant amount of sulfate (SO42−), a comprehensive investigation into its influence on the oxidation process is lacking. Leveraging pyrite’s semiconducting nature and the electrochemical intricacies of its surface oxidation, this study employs electrochemical techniques—cyclic voltammetry (CV), Tafel polarization, and electrochemical impedance spectroscopy (EIS)—to assess the effect of SO42⁻ on pyrite surface oxidation. The CV curve shows that SO42−does not change the fundamental surface oxidation mechanism of pyrite, but its redox peak current density decreases with the increase in SO42−, and the surface oxidation rate of pyrite decreases. The possible reason is attributed to SO42−adsorption onto pyrite surfaces, blocking active sites and impeding the oxidation process. Furthermore, Tafel polarization curves indicate an augmentation in polarization resistance with elevated SO42−concentrations, signifying heightened difficulty in pyrite surface reactions. EIS analysis underscores an increase in Weber diffusion resistance with increasing SO42⁻, indicating that the diffusion of Fe3+to the pyrite surface and the diffusion of oxidized products to the solution becomes more difficult. These findings will improve our understanding of the influence of SO42−on pyrite oxidation and have important implications for deepening the understanding of surface oxidation of pyrite in the natural environment.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Bohua Li,Jingning Lai,Fengling Zhang,Wen Sun,Zhengqiang Hu,Boshun Gui,Nan Chen,Li Li,Feng Wu,Renjie Chen
LiI in Li-O 2 batteries has shown promise in reducing charge overpotential. However, the shuttle effect of oxidated iodine species (OISs) can lead to lithium metal corrosion and loss of OISs. During the discharging process, these iodine species can undergo side reactions, resulting in the accumulation of LiOH and other parasitic products, which in turn accelerates battery failure. In this work, we have drawn inspiration from mussel protein and utilized a simple co-deposition method to form a robust biomimetic functionalized coating on the surface of the glass fiber separator. This was achieved by grafting catechol/polyamine (CA/PA) with 11-mercaptoundecanoic acid (MUA). This separator exhibits strong electrostatic repulsion towards negatively charged OISs and, conversely, electrostatic attraction towards Li + , this dual action effectively suppresses the shuttle effect and facilitates Li + transport. When equipped with this modified separator, the Li-O 2 battery effectively reduces the accumulation of LiOH and demonstrates significantly enhanced rate performance and cycle stability. Our findings provide a versatile approach for the design of modified separators for Li-O 2 batteries with redox mediators (RMs).
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高影响因子
MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Jian Zhang,Yi Liu,Jiayi Peng,Wenjing Li,Yanqing Miao,Chunye Liu
We introduce a facile method for glycoprotein enrichment, separation, and detection using microfluidic paper-based analytical devices (μPADs). The μPADs comprise two distinct components: the enrichment region (Chip I) and the detection section (Chip II). The reusable Chip I is fabricated by immobilizing 3-aminophenylboronic acid (APBA) onto a circular paper substrate, demonstrating exceptional glycoprotein affinity. In disposable Chip II, glycoproteins react with periodic acid, generating carbonyl compounds that produce a purple-colored product upon reacting with the Schiff reagent. Alterations in color intensity are captured using an ordinary cell phone and are subsequently analyzed using Photoshop software. Observations note a linear increase in average color intensities from 1.0 × 10 −3 to 5.0 × 10 −3 mol/L, with an R 2 value of 0.9927. The relative standard deviations (RSDs) of inter-day ( n = 5) and intra-day ( n = 5) assessments stand at 1.5 % and 1.4 %, respectively. Our proposed approach can effectively enrich an ovalbumin (OVA) solution with concentrations as low as 1.0 × 10 −11 mol/L, resulting in enrichment rates of 10 7 to 10 8 times. The interference deviations of five substances relative to OVA lie within the range of − 2.0 % to + 2.0 %. The methodology successfully enriches glycoproteins from egg white samples diluted by a factor of 1 × 10 6 , demonstrating that the proposed method is remarkably suitable for enriching glycoproteins from authentic samples.
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高影响因子
危险品化学品经营许可证（带存储）