SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Lei Liao,Bo Ju,Gaoling Liang,Minjie Chen,Hao Lei,Ning Pan,Yongde Zhang,Xiaoqiang Wang,Hao Zou
A low-cost mercury‑bismuth co-modified silica gel has been previously reported as an alternative to expensive silver-loaded silica gel for adsorbing radioactive gaseous iodine. This study proposed a two-step treatment strategy for iodine-containing secondary waste, enabling simultaneous resource utilization of mercury and safe immobilization of iodine. First, Na 2 S was employed as the eluent, and the resulting mercury‑bismuth‑sulfur composite (HBS@SiO 2 ) was reused as an iodine adsorbent. Second, iodine was preliminarily immobilized into iodosodalite, followed by mixing with glass powder and sintering for secondary immobilization. The results demonstrated that Na 2 S elution efficiencies for HgI 2 @SiO 2 -I 2 and HgI 2 @SiO 2 -CH 3 I were 99.02% and 99.19%, respectively. For mercury reuse, the adsorption capacities of HBS@SiO 2 for I 2 and CH 3 I were 298.3 ± 6.9 mg/g and 160.1 ± 21.6 mg/g, respectively, and no significant performance decrease was observed after three cycles. Both experimental and theoretical calculations indicate that the capture of CH 3 I was attributed to the synergism of the chemisorption of Bi 2 S 3 and the surface electrostatic adsorption of HgS. For iodine disposal, the iodine derived from the liquid after I 2 adsorption was confined within the cage structure of sodalite in the forms of I − and IO 3 − , whereas only I − was present in the sample obtained after CH 3 I adsorption. The iodosodalite solidified by 20 wt% borosilicate glass exhibited a better chemical stability. PCT leaching tests indicated that the iodine leaching rate was 8.8 × 10 −5 g·m −2 ·d −1 . Overall, it presented a treatment strategy for iodine-containing secondary waste, achieving the resource recovery of active metals and the stable solidification of radioactive iodine.
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高影响因子
Microstructures
·
2026
·Vol. 6
·期 3
·N
·
IF 8.5
Xiaodong Qian,Mei Wan,Yanan Hou,Congling Shi,Lei Chen,Honglei Che,Jingyun Jing,Jian Li,Ye-Tang Pan
Microstructure manipulation represents a fundamental strategy for enhancing material properties. Herein, a new-type flame-resistant material with core-shell architecture (APP@PEI@SiO2@MXene) is prepared by iterative deposition of self-assembled monolayers, enabling microstructural control of ammonium polyphosphate (APP) via sequential coating with polyethyleneimine (PEI), SiO2, and MXene. Then the flame retardants were incorporated into thermoplastic polyurethane (TPU) at a loading of 15 wt.%, this meticulously designed microstructure enables the composite to exhibit significantly improved fire safety. The composite exhibits a markedly increased high-temperature char residue under both air and nitrogen atmospheres, indicating improved thermal resilience and char formation capacity. Thermal stability analysis of the material reveals that the coated APP enables TPU composites to engender a carbonaceous stratum of heightened tenacity. Cone calorimetry tests indicate that, compared with pure TPU, TPU/APP-1BL composites exhibit sharp declines of 87.90% in total heat release (THR) and 76.79% in the peak heat release rate (pHRR), with concurrent effective control of smoke/toxic gas emissions. Moreover, the flame-retardant effects of multi-layer coated APP are notably better than those of single-layer coated APP. Mechanistic studies reveal that the flame-retardant performance chiefly originates from the synergistic interplay of solid and vapor-stage pathways. This work highlights the critical role of microstructure design in the creation of high-performance fire-resistant polymers.
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JOURNAL OF MEDICINAL CHEMISTRY
·
2026
·
IF 7.3
Junjie Zhang,Fawei He,Yurui Wang,Peng Jiang,Jiongwen Qin,Meng Liu,Jiawei Yao,Dongting Zhangsun,Meng Li,Sulan Luo,Yong Wu
The surge in multidrug-resistant (MDR) pathogens necessitates novel therapeutic strategies. Here, we report the rational design of C4-VG7, an N-terminal butyrylated lipopeptide engineered from a compact, cationic, helix-compatible segment of the marine conotoxin αO-GeXIVA. Through stepwise structural optimization─from constrained cyclic prototypes to lipidated derivatives─C4-VG7 was identified as a lead candidate with potent, broad-spectrum activity against MDR ESKAPE pathogens, including clinical isolates (MIC ≈1 μM). Mechanistically, C4-VG7 exhibits multimodal bactericidal action: C4-tail-mediated membrane depolarization is consistent with early membrane disruption followed by intracellular DNA association and oxidative stress. In murine models of MRSA and Acinetobacter baumannii infections (skin and peritonitis), C4-VG7 achieved efficacy comparable to polymyxin B with significantly reduced hepatonephrotoxicity. Thus, C4-VG7 represents a systemically viable, well-tolerated candidate for combating MDR ESKAPE infections.
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高影响因子
Environmental Science-Nano
·
2026
·
IF 5.6
Saiqa Menhas,Minjie Chen,Hui Jin,Jiang Xu,Saiyong Zhu,Muhammad Iqbal Zaman,Jie Hou,Daohui Lin
Developing environmental regulation strategies to reduce cadmium (Cd) accumulation in rice while promoting selenium (Se) enrichment is crucial for global food safety and remains a significant challenge. Here, we evaluated a stage-specific co-application approach involving nanoscale zero-valent iron (nZVI) amendment to soil and foliar spraying of melatonin (MT), which decreased grain Cd concentrations by up to 64% while elevating grain Se content by up to 74% in pot experiments. It also enhanced the Se bioconcentration factor (≈63%) and the leaf-to-grain translocation factor (≈77%), indicating improved uptake and redistribution under Cd stress. Mechanistic analyses revealed synergistic metabolic reprogramming: antioxidant defenses were strengthened by elevated ascorbate peroxidase activity, which reduced hydrogen peroxide and restored redox homeostasis. Transcriptomic profiling revealed suppression of Cd influx transporters and activation of genes involved in vacuolar sequestration, antioxidant metabolism, and Se transport, thereby restricting Cd translocation while promoting Se accumulation. Rhizosphere microbiomes were enriched with beneficial taxa, including Pseudomonadota, Acidobacteriota, and Bacillota, which contributed to Cd stabilization and Se bioavailability. This nZVI–MT combined strategy offers a viable strategy for producing safe and nutritious rice.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Pei-Pei Chen,Hao Zhang,Shou-Cong Dong,Shu-Ting Zhang,Dong-Lin Zhao
Enhancing the intrinsic safety of high-performance lithium metal batteries through flame-retardant solvents is a promising strategy, yet their high reactivity often destabilizes electrode interfaces. Engineering the solvation structure and introducing gel polymer frameworks provides effective pathways to overcome this challenge. Here, we report an in situ polymerized high-voltage gel polymer electrolyte (GPE) with a localized high-concentration electrolyte (LHCE) structure dominated by flame-retardant solvents. Strong polar interactions between the P O groups of trimethyl phosphate (TMP) and the acrylate polymer matrix immobilize TMP molecules, mitigating their parasitic reactivity while maintaining flame-retardant functionality. This confined solvation environment further induces anion-rich coordination, thereby promoting the formation of inorganic-rich dual interfaces between solid electrolyte interphase (SEI) and cathode electrolyte interphase (CEI) layers. As a result, Li||LiNi₀.₈Co₀.₁Mn₀.₁O₂ (NCM811) cells deliver a high capacity of 197.9 mAh g −1 at 4.5 V and retain 86.5% of their capacity after 300 cycles at 0.5C. This work highlights a generalizable strategy for designing non-flammable, high-voltage GPEs compatible with lithium metal anodes.
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高影响因子
POLYMER DEGRADATION AND STABILITY
·
2026
·
IF 8.1
Weidong Li,Yili Duan,Zhonghao Ge,Jianzhang Zhao,Jing Ren,Xilei Chen,Lei Liu,Menghe Zhu
A green one-pot in-situ strategy constructs multifunctional MnP@rGO. • EP/4MnP@rGO achieves UL-94 V-0 rating with LOI of 29.5%. • PHRR and TSR are reduced by 40.2% and 49.7%, respectively. • Impact strength (+27.8%) and thermal conductivity (+284.2%) enhanced. • Excellent solar absorptance enables rapid photothermal de-icing. The intrinsic conflicts among mechanical robustness, fire resistance, and thermal functionality severely hinder epoxy resins (EP) in advanced applications. Conventional single-additive strategies inevitably compromise mechanical integrity and fail to address photothermal de-icing demands. Herein, we circumvent these limitations via a green one-pot in-situ reduction strategy that constructs a multifunctional manganese aminotrimethylene phosphonate@reduced graphene oxide (MnP@rGO) heterostructure without external reducing agents. This hybrid architecture exploits dual synergies, where the rGO scaffold ensures robust interfacial load transfer and physical barrier effects, while Mn 2+ centers serve as Lewis acid catalysts to promote cross-linking and graphitization of the degrading matrix into a protective char layer. At 4.0 wt% loading, the EP/MnP@rGO nanocomposite achieves a 27.8% enhancement in impact toughness and a 24.9% increase in tensile strength, alongside a UL-94 V-0 rating with 49.7% suppression in total smoke release and 46.4% reduction in total heat release. Moreover, the tailored interfacial structure imparts outstanding photothermal conversion efficiency, enabling rapid surface heating and reliable de-icing. This work establishes a transformative paradigm for converting an inherently compromised thermoset into an integrated multifunctional platform for protective coatings in icing-prone infrastructures such as wind turbine blades and aerospace composites.
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高影响因子
Small
·
2025
·
IF 12.1
Zhiheng Zou,Guang Yang,Haolan Li,Zhengsheng Yang,Bin Yao,Huanyong Liu
The application of polymer electrolytes in high-performance lithium metal batteries (LMBs) is usually restricted by their sluggish ion conduction, and inferior electrochemical stability compatibility with electrodes. Here, a cationic copolymer-based electrolyte PMC is developed. The copolymer of acryloyloxyethyl trimethylammonium bis(trifluoromethanesulfonyl)imide (AET⁺TFSI⁻), hexafluorobutyl acrylate (HFBA), and N, N′-methylenebisacrylamide (MBA) is synthesized by photopolymerization with carbonate electrolytes. The copolymer facilitates the lithium salt dissociation, adjusts Li + interaction with the polymer chain, regulates Li + solvation environment, and thus promotes fast ion transport (ionic conductivity of 7.19 × 10 −4 S cm −1 , Li + transference number of 0.84) and uniform Li deposition. PMC is electrochemically stable up 4.43 V versus Li + /Li and forms stable solid electrolyte interphase (SEI) with the anode, supporting long-term stability (1500 h) of lithium plating/stripping test at 0.2 mA cm −2 , 0.2 mAh cm −2 . The Li/PMC/LiFePO 4 cell shows excellent stability at 1C and a high specific capacity of 134.2 mAh g −1 even at 5C. PMC forms voltage-resisting, LiF-rich cathode electrolyte interface (CEI) with LiCoO 2 . The Li/PMC/LiCoO 2 cell shows excellent stability over 100 cycles with a capacity retention of 96%. Nonflammability of PMC and high safety of PMC-based pouch type cells are confirmed. This work provides a facile method toward high-performance and safe LMBs.
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PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Junjie Qi,Zehan Guo,Zheng Wang,Hongxian Fan,Jing Fang,Xingjiang Wu,Hao Li
Traditional pesticide formulations exhibit low utilization rates due to poor foliar deposition and instability under UV irradiation during application, which limits their efficacy in enhancing agricultural productivity. This study developed a lignin-based nanocarrier system through solvent-antisolvent precipitation and coordination-driven self-assembly of lignin with Fe³ ⁺-tannic acid (TA) complexes to address these challenges. A nanoherbicide (called PMT@AFT) was prepared using prometryn (PMT) as a model drug. Different preparation conditions of the lignin-based nanocarrier system were systematically investigated to regulate the particle size of the microspheres, as well as the four main properties of the nanopesticide: stability, adhesion, slow-release, and efficacy, to assess its effect on non-target crops. The results showed that the chelating coordination of Fe³ ⁺-TA constructed a cross-linking stabilization layer on the surface of lignin microspheres and formed a typical core-shell structure. This endows it with excellent UV resistance, high blade adhesion performance, and good sustained-release performance, with a long duration of effect, releasing only about 60 % after 70 h. Furthermore, PMT@AFT demonstrated excellent herbicidal efficacy against barnyard grass while significantly reducing phytotoxicity to non-target crops. This study establishes a novel strategy for developing eco-friendly and safer nanopesticide formulations.
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高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2025
·
IF 6.6
Xun Huang,Yingmei Wu,Chengqi Li,Shugang Li,Xin Li,Yu He,Yingqun Wu,Qun Huang,Fang Geng,Xiefei Li
Based on the limited bactericidal effect of lysozyme (LYZ) alone against Salmonella , this study significantly enhanced the bactericidal activity of LYZ by adding carvacrol (Car). Plate counting, growth curve analysis, and scanning electron microscopy confirmed that the LYZ-Car combination significantly inhibited bacterial growth and caused severe morphological damage. Mechanistic investigations revealed that the combined treatment increased outer membrane permeability by approximately 1.6-fold and elevated intracellular reactive oxygen species (ROS) levels by 1.9-fold. Furthermore, ATPase activity and ATP content were markedly suppressed, showing reductions of 1.5-fold and 1.4-fold, respectively, indicating severe disruption of energy metabolism. Metabolomics analysis identified 129 significantly altered metabolites and revealed profound disturbances in 16 key metabolic pathways, with amino acid metabolism and the TCA cycle being the most severely affected. These quantitative results confirm that the LYZ-Car combination effectively inhibits and eradicates Salmonella , offering a promising strategy for enhancing food safety.
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高影响因子
Journal of Materials Chemistry A
·
2022
·Vol. 10
·期 9
·4660-4670
·
IF 14.511
Kun Shi,Zhengjie Xu,Dawei Zheng,Zeheng Yang,Weixin Zhang
Conventional lithium metal batteries (LMBs) containing bare porous polyolefin separators and a high content of liquid organic solvent always suffer from the risk of fire and powerlessness for ultralong cycle lifetime. In this paper, the sandwich-like solid composite electrolytes (SCEs) fabricated by wrapping a commercialized polypropylene (PP) separator with polyvinylidene fluoride (PVDF)–decabromodiphenyl ether (DBDPO) layers on both sides, are customized as the bifunctional separators for long life-span LMBs with high safety. The combustion resistance of the designed separator comes from the flame retardancy of DBDPO fillers, based on a free radical elimination mechanism. However the uniform lithium deposition for dendrite-free lithium anodes in LMBs can be ascribed to the integrated ion-conducting PVDF–DBDPO network equivalent to numerous ion transport channels, which are able to redistribute Li+ enriched at the pore outlets of the PP substrate. The obtained PVDF–DBDPO/PP separator requires only 10 μL cm−2 of liquid electrolyte to realize stable operation at room temperature. Specifically, the assembled lithium iron phosphate/lithium cells can exhibit an excellent cycling performance with a capacity retention of up to 92.3% at 0.5C and even 100% at 5C after 1000 cycles. The bifunctionality of such a separator in terms of high safety and unexpected cycling stability endows it with powerful competitiveness in comparison with the present separators.
研究领域:
材料科学
·
能源技术
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JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
·
2020
·Vol. 97
·期 2
·466-478
·
IF 2.008
Ma Haohua,Wang Jianqiang,Zhang Wenpei,Guo Cheng
To allay concerns that sunscreen ingredients are harmful to skin health, we have developed phenylalanine (Phe) and leucine (Leu) dipeptide functionalized silica-based nanoporous material (Phe-Leu-OMe-Meso) as a safe ultraviolet filter for skin protection from UVA/UVB sun irradiation. The selected peptide-based functional molecules are composed of natural amino acids, which have obvious advantages compared with other biological molecules and organic molecules, such as low toxicity and high stability. Octyl salicylate (OS) is adopted as the drug molecule to observe the adsorption behavior of the nanoporous materials. The results confirm that Phe groups effectively improve the OS loaded capacity of Phe-Leu-OMe-Meso by aromatic π – π stacking interaction, and the experimental data obey the pseudo-second-order kinetic model and the Langmuir, Freundlich, Temkin isotherm model. Moreover, in vitro evaluation of the spectrophotometric sun protection factor indicates that Leu groups make Phe-Leu-OMe-Meso possess an excellent sunscreen efficacy close to that of mesoporous TiO 2 and exhibit a synergistic effect with OS on sun protection. In summary, the dipeptide functionalization of silica-based nanoporous material has an excellent prospect in the application of sunscreen.
研究领域:
材料科学
·
生物学
·
皮肤病学
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高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Yun Zhang,Runhe He,Hao Liu,Haihui Liu,Xing-xiang Zhang
A novel thermoregulating separator (TS) for lithium–sulfur batteries (LSBs) utilizing phase change materials (PCMs) was fabricated by encapsulating the n -docosane (C22) in a polymethyl methacrylate (PMMA) shell, followed by co ating onto the surface of an electrospun poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) membrane. Acting as a “smart gatekeeper”, this TS can promptly mitigate internal temperature increases, as the melting of C22 absorbs a significant amount of heat. As a result, the battery demonstrates excellent cycling stability and consistent coulombic efficiency. More importantly, C22 will be released from the ruptured microcapsules when the heating temperature exceeds 105 °C, effectively blocking the gaps of the separator. This action initiates a thermally induced shutdown mechanism of the battery, preventing the escalation of any accidents. Moreover, the ester groups of PMMA exhibit strong chemical adsorption effect on the polysulfides, which was proven by density functional theory calculations. The TS based on PCMs effectively mitigates the safety hazards associated with thermal runaway and suppresses the shuttling of polysulfides. It is expected to demonstrate vast potential for the development of stable and long-lasting Li S batteries.
研究领域:
材料科学
·
电化学
·
储能技术
·
纳米技术
·
化学工程
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危险品化学品经营许可证（带存储）