Journal of Energy Storage
·
2026
·
IF 10.7
Chuang Wang,Lingzhuo Yang,Jinxiang Long,Tao Xie,Chuang Li,Yanhong Xiang,Xianming Wu,Xianwen Wu
With the growing demand for sustainable energy, aqueous zinc-ion batteries (AZIBs) have attracted considerable attention as an emerging energy-storage technology owing to their low cost and high safety. However, one of the most widely used cathode materials of manganese dioxide (MnO 2 ) for AZIBs suffers from unstable electrochemical performance of sluggish zinc-ion diffusion and gradual structural degradation. To solve these problems, we propose a simple in-situ pre-intercalation strategy to construct lysine-functionalized δ-MnO 2 (Lys-MnO 2 ), thereby reinforcing the structural stability and boosting the electrochemical performance of MnO 2 . XRD and HRTEM characterizations, combined with GITT and EIS analyses, demonstrate that lysine molecules effectively increase the interlayer spacing of MnO 2 and facilitate zinc-ion diffusion. Electrochemical tests show that the Lys-MnO 2 cathode exhibits the markedly enhanced cycling performance. It maintains a reversible capacity of over 274 mAh g −1 after 100 cycles at 0.2 A g −1 and retains 92.7% of its capacity even after 900 cycles at 1 A g −1 , superior to those of the pristine MnO 2 cathode. This work provides an innovative route for the development of high-performance and long-lifespan manganese-based cathode materials for AZIBs.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yu Wu,Arul Murugesan,Yaru Han,Juan Han,Yiping Chen,Huanhuan Li
An injectable BZUCNPs-PACMSNs/PGB sensor was proposed to detect AFB 1 . • BPEI was coated on ZUCNPs to improve the water-soluble ability of ZUCNPs • A dual-gated strategy was presented to improve the stability of UCNPs sensor. • BPEI@Cu 2+ can effectively quench the fluorescence of ZUCNPs due to IFE. • Injectable PGB hydrogel was utilized for stable and on-site AFB 1 detection. An expanding presence of aflatoxin B 1 (AFB 1 ) contamination across the global food supply represents a serious threat to public health. This work developed a portable sensor using Zn 2+ -doped upconversion nanoparticles (ZUCNPs) that Cu 2+ -induced fluorescence quenching with an injectable polyvinyl alcohol/gelatin/borax (PGB) hydrogel. First, ZUCNPs exhibiting enhanced fluorescence were modified with branched polyethylenimine (BPEI) to form signal probes known as BZUCNPs. Additionally, mesoporous silica nanoparticles (MSNs) were fabricated via sol-gel methods, loaded with Cu 2+ and coated with aptamer (Apt) and polydopamine (PDA) to create dual-gated capture probes (PACMSNs). Afterwards, BZUCNPs and PACMSNs were mixed to form sensing probes and then integrated into the PGB hydrogel, forming the final sensor (BZUCNPs-PACMSNs/PGB). In the presence of AFB 1 at pH 5.5, the AFB 1 diffused into the PGB hydrogel, disrupting the PDA and Apt layer due to acid environment and changing the structure of Apt as AFB 1 specifically bound to it. Then, Cu 2+ released and facilitated the formation of BPEI@Cu 2+ complex on the surface of ZUCNPs, which produced inner filter effect (IFE) that quenched fluorescence. When experimental conditions were optimized, a pronounced linear calibration curve ( R 2 = 0.994) was observed, linking fluorescence to the logarithm of AFB 1 levels across a 0.1–100 μg/kg AFB 1 range. And its sensitivity was characterized with a detection limit of 0.03 μg/kg. Furthermore, the sensor's applicability was confirmed through analysis of food matrices, including wheat, corn, peanuts, and water, yielding high analytical accuracy with relative standard deviations below 6.08% and recovery rates ranging from 93.77% to 107.67%.
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BIOMATERIALS
·
2026
·
IF 13.6
Changhao Dong,Ju Huang,Lanlan You,Lan Chen,Minglan Wang,Jun Zheng,Heyang Liu,Lin Li,Pan Li,Zhigang Wang,Han Lin,Liang Zhang
Zinc ions (Zn 2+ ) overload is considered an exceptionally safe and ideal approach for pyroptosis-mediated tumor treatment. However, achieving efficient and safe induction of tumor-specific Zn 2+ overload remains a significant challenge. This study pioneers the concept of “sono-activated Zn 2+ storm”, developing a sono-activated and tumor microenvironment (TME)-responsive nanoplatform, Zn-TCPP@CaCO 3 , which enables a precise and spatiotemporally controllable induction of Zn 2+ overload at the tumor site. Specifically, Zn-TCPP@CaCO 3 selectively releases meso-tetra-(4-carboxyphenyl) porphine (TCPP) and delivers the “exogenous Zn 2+ ” within the acidic TME. Upon tumor-site localized ultrasound irradiation, the sonosensitizer TCPP generates abundant reactive oxygen species (ROS) in situ, which oxidatively attack Zn-metallothionein complexes and effectively unlock the “endogenous Zn 2+ ” reservoir. The synergistic influx of exogenous and endogenous Zn 2+ drastically disrupts intracellular zinc homeostasis, further exacerbating oxidative stress by impairing mitochondrial function. This disruption initiates a self-amplifying positive feedback loop, ultimately inducing a potent “Zn 2+ storm” that finally triggers tumor cell pyroptosis. The results demonstrate that this strategy not only effectively induces powerful antitumor effects, but also elicits a strong immunogenic response and significantly enhances the therapeutic efficacy of immune checkpoint inhibitors. Overall, this work provides valuable insights into the development of novel tumor specific ion interference therapies.
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高影响因子
Chemosensors
·
2023
·Vol. 11
·期 2
·75
·
IF 4.2
Yijing Ai,Lisi Wang,Wanting Fu,Xiang Ye,Juan Zhou,Xiaoping Zhang,Shuhai He,Wei Sun
In this paper, graphdiyne (GDY)−modified glassy carbon electrode was prepared and further used for the sensitive and simultaneous detection of three target heavy metal ions of Zn2+, Cd2+and Hg2+by codeposition with Bi3+in the mixture solution. GDY−modified electrodes exhibit a larger electrode area and abundant active sites, which is favorable for absorbing more metal ions. Bismuth has low toxicity and can form alloys with zinc, cadmium and mercury. Therefore, three kinds of heavy metal ions can be pre-concentrated with bismuth on the GDY−modified electrode surface, and the following stripping analysis results in high sensitivity and selectivity. By using differential pulse anodic stripping voltammetry, the detection ranges of Zn2+, Cd2+and Hg2+were from 2.0 to 100.0 μM with low detection limits of 0.255 μM, 0.367 μM and 0.796 μM, respectively. In addition, the sensor showed excellent repeatability, reproducibility, and stability, which was applied to sensitive analysis of river water samples with satisfactory results.Keywords:graphdiyne;bismuth;heavy metal ions;electrochemistry;differential pulse anodic stripping voltammetry
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MICROCHIMICA ACTA
·
2022
·Vol. 189
·期 3
·1-10
·
IF 6.408
Chen Shengyu,Li Suping,Liu Xiaofeng,Shi Bingfang,Huang Yijun,Zhao Shulin
A near-infrared nitrogen and sulfur co-doped carbon dot (N,S-CD)-based ratiometric fluorescent probe is proposed that is synthesized via hydrothermal approach using glutathione and formamide as precursor for sensing and imaging of Zn 2+ . The prepared N,S-CDs facilitate binding with Zn 2+ owing to N and S atom doping. The ratio (I 650 /I 680 ) of fluorescence intensity at 650 nm and 680 nm increased with the concentrations of Zn 2+ when the excitation wavelength was 415 nm. The linearity range was 0.01 to 1.0 μM Zn 2+ with a detection limit of 5.0 nM Zn 2+ . The proposed probe was applied to label-free monitoring of Zn 2+ in real samples and fluorescent imaging of Zn 2+ in living cells, which confirmed its promising applications. Graphical abstract
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Jing Xu,Yinbing Liu,Peilong Chen,Ao Wang,Ke-jing Huang,Linxia Fang,Xu Wu
Currently, the development of polyvalent ions battery systems are still restricted by lacking suitable cathode materials with high energy density and long cycle life attributing to sluggish kinetic mechanism and of polyvalent ions. Herein, an effective inter-layer scaling strategy is proposed by using a simple hydrothermal method . The super layer spacing VS 2 (∼1 nm) cathode dramatically improves electrochemical performance of zinc-ion batteries (ZIBs) and magnesium/lithium hybrid ion batteries (MLIBs). The specific discharge capacities of ZIBs and MLIBs are 450.7 and 488.8 mA h g −1 at current density of 0.1 A g −1 which are much higher than the same type of battery systems. Finally, the diffusion mechanism and the corresponding theoretical model is established by adopting first principles . In brief, the work provides an effective strategy for the large scale application of multivalent and hybrid batteries systems.
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高影响因子
Journal of Advanced Ceramics
·
2020
·Vol. 9
·期 3
·292-302
·
IF 2.889
Wang Hongxian,Zhao Peiyao,Chen Lingling,Li Longtu,Wang Xiaohui
Multilayer ceramic capacitors (MLCCs) for energy storage applications require a large discharge energy density and high discharge/charge efficiency under high electric fields. Here, 0.87BaTiO 3 -0.13Bi(Zn 2/3 (Nb 0.85 Ta 0.15 ) 1/3 )O 3 (BTBZNT) MLCCs with double active dielectric layers were fabricated, and the effects of inner electrode and sintering method on the energy storage properties of BTBZNT MLCCs were investigated. By using the pure Pt as inner electrode instead of Ag 0.6 Pd 0.4 alloys, an alternating current (AC) breakdown strength ( BDS ) enhancement from 1047 to 1500 kV/cm was achieved. By investigating the leakage current behavior of BTBZNT MLCCs, the Pt inner electrode and two-step sintering method (TSS) were confirmed to enhance the Schottky barrier and minimize the leakage current density. With relatively high permittivity, dielectric sublinearity, and ultra-high BDS , the Pt TSS BTBZNT MLCCs exhibited a surprisingly discharge energy density ( U dis ) of 14.08 J/cm 3 . Moreover, under an operating electric field of 400 kV/cm, the MLCCs also exhibited thermal stability with U dis variation < ±8% over a wide temperature ( t ) range from -50 to 175 °C and cycling reliability with U dis reduction < 0.3% after 3000 charge-discharge cycles. These remarkable performances make Pt TSS BTBZNT MLCCs promising for energy storage applications.
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JOURNAL OF MEMBRANE SCIENCE
·
2023
·
IF 9.5
Min Chen,Jiangzhou Luo,Honglei Ling,Xueping Zong,Song Xue
Developing membranes that combine excellent gas separation performance with robust resistance to plasticization is highly demanded for membrane separation but remains a challenge. Herein, a series of Zn 2+ functionalized poly(benzoxazole-co-imide) membrane was constructed via co-polymerizing (4,4′-hexafluoroisopropylidene) diphthalic anhydride (6FDA) with o-hydroxyl diamine 2,2′-bis(3-amino-4-hydroxyphenyl)-hexafluoropropane (BisAPAF) and 1,3,5-tris(4-aminophenyl)benzene (TAPB) followed by thermal rearrangement (TR) and Zn 2+ modification processes. The TR conversion opened the polymer chains with larger d-spacing and higher BET surface area, thus, greatly increased the gas permeability . Meanwhile, the post Zn 2+ modification resulted in a huge improved selectivity because of the π-complexation reactions between Zn 2+ and CO 2 and the formation of a Zn 2+ coordination crosslinking network. As a result, due to the synergistic effect of TR and Zn 2+ modification, the overall gas transport properties of these newly developed membranes were greatly improved. Furthermore, the dual network structures that arise from the remaining network PI and the Zn 2+ coordination crosslinking contribute to the resultant membrane with excellent anti-plasticization capability. A represent membrane termed as PBOI-Zn 2+ -14h membrane exhibits great CO 2 /CH 4 separation performance, delivering a CO 2 permeability of 1048.1 Barrer and a CO 2 /CH 4 selectivity of 46.1 that is exceeded the 2008 Roberson limitation. Furthermore, this membrane possesses remarkable resistance to CO 2 -induced plasticization, withstanding pressures above 35 Bar. Overall, this study presents an effective way for constructing polymer membranes with both high gas separation performance and strong resistance to plasticization issue.
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高影响因子
MICROCHEMICAL JOURNAL
·
2023
·
IF 4.8
Siyu Li,Weijun Shan,Ting Rao,Yanou Qi,Ying Xiong,Zhenning Lou,Haibiao Yu,Junshuo Cui,Xiaogeng Feng
Heavy metal ions (HMIs) are accumulative and toxic for the environment, causing one of the recognized social problems, while some metal ions have positive applications in the prognosis of diseases. Therefore, there is a necessity to achieve rapid, convenient, highly efficient determination of HMIs. In this work, a novel composite, CAU-17/CSG, consisting of CAU-17 and cellulose graphene (CSG) is synthesized via in situ growth method and serves as an effective electrochemical sensor. Taking advantages of the high catalytic activity of Bi in CAU-17 and the good synergy between CAU-17 and CSG , CAU-17/CSG exhibits excellent electrocatalytic activity to achieve individual and simultaneous detection of low concentrations of Zn 2+ , Cd 2+ and Pb 2+ in aqueous solutions. The limits of detection (LOD) for Zn 2+ , Cd 2+ and Pb 2+ are 0.029, 0.008 and 0.011 μM (S/N = 3), with linear ranges of 0.3–10, 0.01–2 and 0.03–2 μM, respectively. Meanwhile, the sensor exhibits good stability, reproducibility and anti-interference ability. As expected, CAU-17/CSG exhibits good accuracy in detecting metal ions in water and blood samples. Considering the simple preparation method, stable structure and excellent performance, the prepared composites will have great potential for environmental and biomedical applications.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2018
·
IF 5.091
Quan Song,Yunsu Ma,Xu Wang,Tang Tang,Yueyue Song,Yujie Ma,Guanhong Xu,Fangdi Wei,Yao Cen,Qin Hu
In this work, a novel strategy for Zn 2+ detection was established by using an “on-off-on” ratiometric fluorescent nanosensor with the help of ethylene diaminetetraacetic acid (EDTA), a common metal chelating agent. The simple and practical ratiometric fluorescent nanosensor was synthesized by covalently binding CdTe quantum dots (QDs) and carbon dots (CDs), possessing two emission peaks at 525 nm and 450 nm under a single wavelength excitation of 360 nm, respectively. The CdTe QDs served as the response signal label, and the CDs, having no response to the analytes, acted as the reference signal. The fluorescence emission of the nanosensor was turned off to create a low-level “off” state when EDTA was added, and turned on dramatically with the addition of the target Zn 2+ . Under the optimal conditions, the change of the fluorescence intensity ratio of the nanosensor at 525 nm and 450 nm (ΔF 525 /F 450 ) had good linearity against the concentrations of Zn 2+ within a dynamic linear range of 0.50–40 μM. The limit of detection was as low as 0.33 μM (3σ/K), which was low enough for the detection of Zn 2+ in human body. The proposed method was successfully applied to the detection of Zn 2+ in human urine and plasma with RSDs less than 10%. The results show that the as-prepared QDs-CDs ratiometric nanosensor has potential application of clinical detection of Zn 2+ in the human body.
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高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2018
·
IF 2.179
Guofang Zhang,Yiming Li,Zhonghui Hou,Jianyi Xv,Qingchun Wang,Yanghuan Zhang
The Cu 2+ and Zn 2+ co-doped CeO 2 -based solid solutions were synthesized via hydrothermal method . The microstructure and the spectra features of the solid solutions were characterized systematically. The XRD results showed that the dopants were incorporated into the CeO 2 lattice to form Ce 1-x Cu 0.5x Zn 0.5x O 2 solid solutions when x was lower than 0.14. The cell parameters and the crystalline size decreased linearly, and the lattice strain gradually increased with increasing the doping level. The TEM patterns showed that the particle size in the solid solution was lower than 10 nm which is in accordance with the XRD results. The ICP analysis indicated that the real doped content in the solid solution was close to the nominal proportion. XPS proved that the Ce 3+ component was increased by doping. The Raman and PL spectra indicated that the lattice distortion and the oxygen vacancies also increased following the same trend. At the same time, the synergistic effects of two ions co-doped solid solutions were studied by comparing them with that of single ions doped samples. The catalysis effects of Cu 2+ and Zn 2+ co-doped CeO 2 -based solid solutions on the hydrogen storage electrochemical and kinetic properties of Mg 2 Ni alloys were detected. The electrochemistry properties of the Mg 2 Ni-Ni-5 wt% Ce 1-x Cu 0.5x Zn 0.5x O 2 composites indicated that the doped catalysts could provide better optimizations to improve the maximum discharge capacities and the discharge potentials. On the other hand, the charge transfer abilities on the surface and diffusion rate of H atoms in the bulk of alloys also got improved. The DSC measurements showed that the hydrogen desorption activation of the hydrogenated composites with Ce 0.88 Cu 0.06 Zn 0.06 O 2 solid solutions decreased to 77.03 kJ mol −1 , while that of the composites with pure CeO 2 was 97.62 kJ mol −1 . The catalysis effect was enhanced by the doped content increase that means that the catalysis mechanism had close links to the oxygen vacancy concentration and the lattice defects in the solid solutions. On the other hand, the doped Cu 2+ and Zn 2+ ions could also play an important role in the catalytic process.
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RSC Advances
·
2017
·Vol. 7
·期 81
·51199-51205
·
IF 3.108
Xiaoting Hong,Chengran Fang,K. S. Hui,K. N. Hui,Haifeng Zhuang,Wanpeng Liu,Shengdao Shan
Hydrothermal carbonization method was used to produce different hydrochars from chestnut outer shell at various temperatures while resolving the environmental issues of agricultural bio-waste. Hydrochars were adopted as adsorbents to remove heavy metal ions (copper and zinc ions) from aqueous solution. Hydrochar samples were characterized by Scanning Electron Microscope (SEM), Fourier Transform Infrared (FTIR), and Brunauer–Emmett–Teller (BET) nitrogen adsorption–desorption isotherm. An increase in the hydrothermal temperature from 160 °C to 220 °C results in higher BET surface area (18.81 m2 g−1) and the porosity of the samples. The resultant hydrochar at 220 °C exhibited a more excellent adsorption performance (8.13 mg g−1 for copper nitrate) than the other two hydrochars at low hydrothermal temperature. The current study addressed the influence of interfering anions of nitrates, sulfates and chlorides on the adsorption performance. The result shows that the hydrochar possesses larger removal efficiency for heavy metal nitrates that that of chlorides and sulfates.
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危险品化学品经营许可证（带存储）