DESALINATION
·
2025
·
IF 9.8
Tong Zhou,Nan Zhang,Qi Li,Guoyao Li,Haidong Sun,Chenglan Zhang,Juan Li,Hezhou Liu,Huanan Duan
The rapid increase in the commercialization of electric vehicles and portable electronics has markedly raised the demand for lithium resources. Extracting lithium from brine has become a critical pathway to address future lithium production challenges. However, the lithium extraction efficiency of conventional technologies is limited by the low levels of Li + and the high Mg 2+ /Li + ratio present in brine. A method involving one-step electrolysis with a solid-state electrolyte has been introduced for the direct and efficient extraction of metallic lithium. Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) is considered a highly promising selective membrane for large-scale lithium extraction from brine sources due to its low cost, excellent stability, and high ionic conductivity. Herein, LATP electrolytes were synthesized through the optimization of solid-state reaction conditions. The resulting LATP pellets exhibited a high relative density of 98.29 % and an impressive ionic conductivity of 3.88 × 10 −4 S cm −1 . The lithium extraction device utilizing LATP as a selective membrane achieved a remarkable current efficiency of 97.4 % and a high lithium production rate of 40.4 μg h −1 cm −2 . After lithium extraction process, the LATP pellets retained the ionic conductivity of 2.69 × 10 −4 S cm −1 and preserved the sodium super ion conductors (NASICON) crystal structure. This study presents an efficient Li + selective membrane for extracting lithium directly from natural brine.
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JOURNAL OF ELECTRONIC MATERIALS
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2025
·
IF 2.5
Yang Xiaoli,Zhang Xiaomin,Zhang Han,Cong Yuhan,Wang Zitan,Ye Erkang
MXene-based hydrogels have become important materials for epidermal applications due to their excellent conductive properties and biocompatibility. Nonetheless, the application of such materials in the epidermal field is limited because of insufficient mechanical properties, unidimensional stimulus response, and complex preparation methods. In this study, an MXene-based hydrogel with outstanding self-healing, temperature sensitivity, and pH sensitivity was prepared by a one-pot method at 60°C for 5 h. The hydrogel is composed of Ti 3 C 2 T x MXene nano-slices, polyacrylamide (PAM), poly( N -isopropylacrylamide) (PNIPA), and polyacrylic acid (PAA), denoted as MXene/PAM/PNIPA/PAA hydrogel (MPANA hydrogel). The MPANA hydrogel exhibits excellent mechanical properties. Its tensile strength, elastic modulus, toughness, and elongation at break are 2.79 MPa, 0.64 MPa, and 51 MJ/m 3 , 412%, respectively, which indicates that the hydrogel possesses good stretchability. Moreover, the MPANA hydrogel demonstrates good self-healing ability, attaining an average strain self-healing efficiency of 94%, achieved in 12 h. Additionally, the MPANA hydrogel shows impressive thermal response sensitivity (−1.3560% °C −1 ) and a rapid pH response time (32–53 s). In conclusion, the MPANA hydrogel has significant potential for applications in epidermal sensors. Graphical
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
·
IF 9.7
Caiyun Wang,Xingxing Wu,Yufan Xia,Xuan Zhang,Hongge Pan,Mi Yan,Yong Li,Yinzhu Jiang
Mg metal anodes experience significant passivation of harmful side reactions in conventional electrolyte consisting of magnesium bis(trifluoromethane sulfonyl)imide (Mg(TFSI) 2 ) in 1,2-dimethoxyethane (DME), which critically impedes the advancement of high-performance rechargeable magnesium batteries. Herein, an innovative electrolyte system comprising an ultra-dilute 0.02 M Mg(TFSI) 2 in DME with 4-chlorobutyl methyl ether (CME) as co-solvent is strategically devised. This unique formulation effectively suppresses the formation of TFSI − -derived passivation byproducts while simultaneously facilitating the establishment of protective Cl-rich interphase, thereby achieving exceptional reversibility in Mg plating/stripping processes. Remarkably, Mg electrodes demonstrate stable cycling performance with a minimal overpotential of 70 mV at 0.1 mA cm −2 in the optimized 0.02 M Mg(TFSI) 2 -DME/CME electrolyte. More impressively, the system maintains reversible electrochemical operation for 400 h even at 2 mA cm −2 . This work presents a novel electrolyte formulation for overcoming the limitations of Mg metal anode in conventional Mg(TFSI) 2 based electrolytes, offering new perspectives for the development of next-generation rechargeable magnesium batteries.
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ANALYTICA CHIMICA ACTA
·
2025
·
IF 6
Long Zhang,Manyu Xue,Qi Xin,Jie Tang,Yin Liu,Zhengyang Bian,Xiaoping Zheng
The increasing prevalence of nanoplastics (NPs) in the environment has raised significant concerns about their potential for bioaccumulation and toxicity. However, most toxicity studies currently focus on pristine polystyrene NPs (PSNPs), overlooking the impact of environmental weathering on their surface chemistry and interactions with biological systems. This study adopts an aggregation-induced emission (AIE)-based approach to quantify how surface functionalization affects cellular uptake, a critical step in assessing NPs toxicity. We synthesized carboxyl (-COOH) and amino (-NH 2 ) functionalized PSNPs through emulsion polymerization, incorporating an AIE fluorescent label to enable precise quantification and to distinguish the NPs from endogenous biomolecules. Using mouse macrophages (RAW264.7) as a model, we demonstrated that surface carboxylation significantly enhanced cellular uptake compared to the original NPs. This enhanced uptake effect is likely due to the increased interaction between the functionalized NPs and the cell surface receptors. Quantitative fluorescence analysis and flow cytometry revealed that PSNP-COOH exhibited the highest uptake and the most pronounced effects on cell toxicity. This AIE-based approach offers a more environmentally relevant model for evaluating NPs toxicity, understanding the importance of considering surface modifications when assessing the biological effects of NP exposure.
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MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Haoxiang Wang,Yuyang He,Ruoyu Wang,Mengqi Lu,Yuting Luo,Yiwei Sun,Dongpo Xu
An electrochemical sensor with a dual recognition strategy was designed using molecularly imprinted polymers (MIPs) and boric acid for the highly sensitive detection of rutin. The synthesized metal-organic framework (MOFs) is combined with phenylboronic acid, which increases the recognition area of phenylboronic acid and its recognition ability towards adjacent diol compounds. Meanwhile, the molecularly imprinted polymer (MIP) provides specific recognition for rutin. The dual recognition strategy is widely adopted in sensors, enhancing the specificity of the imprinted cavity and effectively addressing the influence of interfering substances in complex matrices. After optimizing the experimental parameters, the detection range of this sensor is from 1 nM to 200 nM, and the limit of detection is 0.43 nM, indicating that this sensor has high potential for practical applications.
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Journal of Energy Chemistry
·
2025
·
IF 14.9
Weili Sun,Qingqing Zhang,Xiao-Guang Sun,Cheng Li,Yongsheng Huang,Wenyu Mu,Junbin Tan,Jianlin Li,Kai Liu,Shijian Zheng,Sheng Dai
Nickel-rich (Ni ≥ 90%) layered oxides materials have emerged as a promising candidate for next-generation high-energy-density lithium-ion batteries (LIBs). However, their widespread application is hindered by structural fatigue and lattice oxygen loss. In this work, an epitaxial surface rock-salt nanolayer is successfully developed on the LiNi 0.9 Co 0.1 O 2 sub-surface via heteroatom anchoring utilizing high-valence element molybdenum modification. This in-situ formed conformal buffer phase with a thickness of 1.2 nm effectively suppresses the continuous interphase side-reactions, and thus maintains the excellent structure integrity at high voltage. Furthermore, theoretical calculations indicate that the lattice oxygen reversibility in the anion framework of the optimized sample is obviously enhanced due to the higher content of O 2 p states near the Fermi level than that of the pristine one. Meanwhile, the stronger Mo–O bond further reduces cell volume alteration, which improves the bulk structure stability of modified materials. Besides, the detailed charge compensation mechanism suggests that the average oxidation state of Ni is reduced, which induces more active Li + participating in the redox reactions, boosting the cell energy density. As a result, the uniquely designed cathode materials exhibit an extraordinary discharge capacity of 245.4 mAh g −1 at 0.1 C, remarkable rate performance of 169.3 mAh g −1 at 10 C at 4.5 V, and a high capacity retention of 70.5% after 1000 cycles in full cells at a high cut-off voltage of 4.4 V. This strategy provides an valuable insight into constructing distinctive heterostructure on high-performance Ni-rich layered cathodes for LIBs.
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MOLECULES
·
2024
·Vol. 29
·期 10
·2354
·
IF 4.2
Jia-Le Zhou,Hao-Han Chen,Jian Xu,Ming-Yu Huang,Jun-Feng Wang,Hao-Jie Shen,Sheng-Xiang Shen,Cheng-Xian Gao,Chao-Dong Qian
Background:Staphylococcus aureusis a common pathogenic microorganism in humans and animals. Type II NADH oxidoreductase (NDH-2) is the only NADH:quinone oxidoreductase present in this organism and represents a promising target for the development of anti-staphylococcal drugs. Recently, myricetin, a natural flavonoid from vegetables and fruits, was found to be a potential inhibitor of NDH-2 ofS. aureus. The objective of this study was to evaluate the inhibitory properties of myricetin against NDH-2 and its impact on the growth and expression of virulence factors inS. aureus. Results: A screening method was established to identify effective inhibitors of NDH-2, based on heterologously expressedS. aureusNDH-2. Myricetin was found to be an effective inhibitor of NDH-2 with a half maximal inhibitory concentration (IC50) of 2 μM. In silico predictions and enzyme inhibition kinetics further characterized myricetin as a competitive inhibitor of NDH-2 with respect to the substrate menadione (MK). The minimum inhibitory concentrations (MICs) of myricetin againstS. aureusstrains ranged from 64 to 128 μg/mL. Time–kill assays showed that myricetin was a bactericidal agent againstS. aureus. In line with being a competitive inhibitor of the NDH-2 substrate MK, the anti-staphylococcal activity of myricetin was antagonized by MK-4. In addition, myricetin was found to inhibit the gene expression of enterotoxin SeA and reduce the hemolytic activity induced byS. aureusculture on rabbit erythrocytes in a dose-dependent manner. Conclusions: Myricetin was newly discovered to be a competitive inhibitor ofS. aureusNDH-2 in relation to the substrate MK. This discovery offers a fresh perspective on the anti-staphylococcal activity of myricetin.
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Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Shang-Yuan Cheng,Chen-Peng Zhang,Meng-na Chao,Shu-Wei Guo,Gui-Sheng Qi
Suspended nanodroplets affect the transfer process within fluids through micro-perturbation or micro-convection effects. Therefore, adding dispersed nanodroplets as the dispersed phase into the liquid phase to form nanoemulsions can enhance the CO 2 absorption process. The quality of nanoemulsions mainly depends on the emulsification equipment. Traditional physical mechanical effects can only achieve large-scale macroscopic mixing, which usually takes a long time to complete, resulting in issues such as low production efficiency, batch operation, and long preparation cycles. This paper uses an impinging stream-rotating packed bed as a reactor, with span60 and tween60 as surfactants, and adopts a high-gravity process intensification technology to prepare undecane/methanol nanoemulsions with good dispersion stability. Nanoemulsion absorbents for CO 2 capture applications have been developed. The effects of different operating conditions on the dispersion stability of nanoemulsion were investigated. Furthermore, CO 2 absorption performance of nanoemulsion absorbents and methanol were investigated in a bubbling reactor. Based on the results, the reasonable mechanism for the enhancement of mass transfer was also discussed in detail. Further experiments on CO 2 absorption using nanofluids were conducted and compared with pure methanol. The results indicate that when the undecane volume fraction is 0.01 %, the high-gravity factor is 27, the impinging velocity is 14.1 m·s −1 , and the circulation time is 20 min, the nanoemulsion exhibits the highest stability, with the narrowest particle size distribution of oil droplets, an average particle size of 20.5 nm, and the highest uniformity. Simultaneously, the change in turbidity over time is minimal. The corresponding thermal conductivity at 25°C is 0.2003 W/m·K. The addition of nano-oil droplets significantly accelerates the CO 2 absorption rate, allowing the absorbent to reach saturation earlier, while the total amount of CO 2 absorbed remains the same. Compared with pure methanol, the nanoemulsion enhances the CO 2 absorption rate by 4.48 %. This work may provide a promising green method for efficient production of nanoemulsions for carbon dioxide capture.
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DESALINATION
·
2024
·
IF 8.3
Hui Yang,Baozhong Ma,Shuyang Shi,Qinqing Zhao,Chengyan Wang,Yongqiang Chen
The continuous development of lithium-ion batteries (LIBs) manufacturing industry calls for the mass production of Li 2 CO 3 , which serves as a pivotal raw material for LIBs. In our previous study, Li was successfully precipitated as intermediate product Li 2 SiO 3 from an alkaline solution containing Si by the hydrothermal precipitation method, realizing the preliminary separation of Li and impurities. In this research, H 2 SO 4 digestion-water leaching-Na 2 CO 3 precipitation process was proposed to manufacture Li 2 CO 3 from the intermediate product Li 2 SiO 3 . Firstly, the reaction feasibility of H 2 SO 4 digestion-water leaching and direct H 2 SO 4 leaching for Li 2 SiO 3 were comparatively evaluated through thermodynamic calculation and experimental research. Compared to direct H 2 SO 4 leaching, H 2 SO 4 digestion-water leaching process is preferred in view of its excellent filtration properties. Subsequently, systematic digestion and leaching experiments showed that up to 97.1 % of Li was extracted under the optimized conditions, and the concentration of Li in the leach liquor is as high as 29.33 g/L. After pH adjustment and Al removal, Na 2 CO 3 precipitation were adopted for Li 2 CO 3 production. The equilibrium relationship in Li 2 SO 4 -Na 2 CO 3 -H 2 O system was analyzed to predict the precipitation behavior of Li and select appropriate operation window for Li 2 CO 3 preparation. Finally, with an additional carbonation-decomposition process, a Li 2 CO 3 product with a purity of 99.51 % is produced. This process realizes efficient synthesis of battery-grade Li 2 CO 3 from the intermediate product Li 2 SiO 3 .
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SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Wenwen Chen,Jie Zou,Liang Shan,Huanhuan Zhang,Wentian Wang,Jiawen Jian,Tao Yuan,Xin Zhang,Yucun Zhou
Selective catalytic reduction (SCR) utilizing urea hydrolysis to generate ammonia (NH 3 ) is the most efficient technology to reduce the emission of nitrogen oxides (NO x ). NH 3 detection is crucial in the closed-loop feedback system for the precise urea injection. In this work, a high-temperature NH 3 sensor using a BaZr 0.8 Y 0.2 O 3-δ (BZY) proton conductor as the electrolyte and a BaCo 0.4 Fe 0.4 Zr 0.1 Y 0.1 O 3-δ (BCFZY) H + /e – /O 2– triple conductor as the sensing electrode (SE) is reported. The effect of the micromorphology of the BCFZY SE on the sensing performance is investigated by varying the sintering temperature of SE. The sensor shows high sensitivity to NH 3 with response currents of 0.39, 1.31, 3.03, and 1.81 μA/ppm at 350, 400, 450, and 500 °C, respectively. Furthermore, the sensor shows excellent selectivity and repeatability. This work demonstrates that the BCFZY based sensor has great potential for the high-temperature NH 3 detection.
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Chemistry-An Asian Journal
·
2018
·Vol. 13
·期 12
·1625-1631
·
IF 3.692
Qingfu Ban,Yinglai Hou,Wen Sun,Jianxin Chen,Xiaofei Zhang,Si Wu,Jie Kong
Graphical Hydrophilic and fluorescent : In comparison to previous fabrication routes for hydrophilic fluorescent organic nanoparticles (FONs), an unconventional route was developed to conveniently yield hydrophilic, size-uniform, and biocompatible FONs for multicolor cellular bioimaging. We demonstrated an unconventional polymerization route to synthesize hydrophilic fluorescent organic nanoparticles (FONs) for multicolor cellular bioimaging in this contribution. The route benefits from our unexpected discovery of a rapid polymerization reaction between 1,6-hexanediol dipropiolate and 2,4,6-triazide-1,3,5-triazine under the catalysis of N , N , N ′, N ′′, N ′′-pentamethyldiethylenetriamine (PMDETA). Interestingly, the 2,4,6-triazide-1,3,5-triazine and PMDETA system can also induce rapid free radical polymerization at room temperature. The as-prepared FONs exhibited promising water solubility and stability with an average diameter of 20 nm. The excitation wavelength-dependent fluorescent properties endow the FONs with blue, yellow, and red fluorescent emission under UV, blue, and green excitation, respectively. The cytotoxicity of FONs was investigated by using a Cell Counting Kit (CCK-8) assay, which indicated good biocompatiblity. More importantly, the cell uptake experiment verified the FONs were excellent fluorescent nanoprobes for multicolor cellular bioimaging. Therefore, this unconventional route provides a novel fabrication strategy of highly hydrophilic FONs for biomedical applications.
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IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
·
2025
·
IF 5.9
Zixing He,Enjun Lin,Yizhang Wen,Song Hu,Haowen Chen,Ping Zhang,Yujie Yang,Weilin Guo
The method for detecting ammonium ions (NH ${}_{4}^{+}$ ) concentrations with ion-selective electrodes (ISEs) offers the benefits of rapid response and no secondary pollution. By calculating the ratio of NH ${}_{4}^{+}$ to ammonia (NH3) via pH and temperature parameters, the concentration of ammonia nitrogen (NH3–N) can be further calculated. However, H+ can interfere with the membrane potential of ISEs in acidic solutions, especially at lower NH3–N concentration where the interference becomes more pronounced. We investigated the effect of H+ on ISEs at room temperature and proposed a pH precompensation algorithm to enhance the precision of ammonium ISEs. Additionally, we modified the membrane with 5% polytetrafluoroethylene (PTFE) micro powder to improve the hydrophobicity. Consequently, a real-time NH3–N sensor incorporated with a pH precompensation algorithm has been developed. The sensor, which is cylindrical with a diameter of 150 mm and a height of 95 mm, accurately measures NH3–N concentrations from 0.1 to 100 ppm with a relative error of $\le 10$ %.
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