Frontiers in Environmental Science
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2025
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IF 3.7
Renren Wang,Hao Xiao,Yi Tan,Luo Chen,Yuhang Zhou,Runfeng Xie,Chuan Tan,Yifei Yang,Cheng Liu,Hengyang Wang,Junxiao Yang,Tao Duan,Lin Zhu
The efficient capture of radioactive iodine is critical for nuclear safety due to its high mobility and toxicity. Bismuth sulfide (Bi2S3) aerogel, synthesized via a one-step hydrothermal method, demonstrates exceptional iodine adsorption performance. Characterization by scanning electron microscopy (SEM) and BET confirmed the material’s porous structure, which facilitated iodine uptake. Batch experiments revealed a high adsorption capacity of 1,204 mg/g, with kinetics and isotherms well described by the pseudo-second-order model and Freundlich isotherm, respectively, indicating that the adsorption process is dominated by chemisorption. The adsorption mechanism involves iodine phase transfer and subsequent formation of stable BiI3 phases, ensuring long-term immobilization. The Bi2S3 aerogel demonstrates superior chemical and thermal stability, high capture efficiency, and cost-effectiveness, further highlighting its practical potential for nuclear waste management. This work advances the design of bismuth-based adsorbents by combining high capacity, stability, and scalable synthesis, thereby offering a sustainable solution for radioactive iodine capture.
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CARBOHYDRATE POLYMERS
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2025
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IF 12.5
Sheng Ke,Anqi Wang,Padraig Strappe,Bing Wang,Chirs Blanchard,Bowen Zhou,Zhongkai Zhou,Guohua Zhao
In this study, konjac glucomannan (KGM) was acetylated, followed by the investigation of its corresponding structural and physicochemical properties. Spectroscopic analyses, including FTIR and NMR, confirmed the introduction of acetyl groups. Rheological measurements found a decrease in both viscosity and gel strength of the acetylated KGM (AKGM), attributing to weaker intermolecular interactions. The current study also revealed that the acetylation of KGM led to reduced gut microbiota fermentation kinetics, followed by a lower short-chain fatty acids (SCFAs) generation, which may be due to the stearic hindrance raised from the introduction of acetyl groups onto its macromolecules. Interesting, although both two types of polysaccharides (before and after acetylation) improved gut microbiota profile in term of enriched probiotics profile, AKGM even generated a lower ratio of Firmicutes / Bacteroidota compared to that of KGM, which was negatively correlated with the degree of acetylation of KGM. Importantly, this was the first time to reveal that Prevotella_9 was selectively promoted in AKGM, followed by a greatly depressed growth of pathogens, such as Escherichia-Shigella compared to KGM. Nevertheless, this study demonstrated that the change in the molecular structure of the polysaccharides targets the promotion of specific bacteria, which may highlight their potent application for individual healthy intervention.
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Matter
·
2025
·
IF 17.5
Chen Li,Yiming Wang,Chengyu Li,Ke Liu,Jiajia Feng,Haoming Cheng,En Chen,Dequan Jiang,Qiaoxin Zhang,Ting Wen,Binbin Yue,Wenge Yang,Yonggang Wang
Exploring potential superconductivity in magnetic compounds stands as a pivotal and challenging frontier issue. Low-dimensional materials, with their distinctive quantum confinement effects, provide an unparalleled platform for probing such quantum phenomena. Here, we present the discovery of pressure-induced superconductivity in novel antiferromagnetic CrNbSe 5 microwires with a distinctive quasi-one-dimensional structure. Under compression, CrNbSe 5 exhibits superconductivity at 15.0 GPa accompanied by carrier-type switching. The superconducting transition temperature reaches a maximum of 6.0 K at 34.2 GPa. Detailed structural analyses and theoretical calculations corroborate the quantum effects arising from Lifshitz transitions. Additionally, phonon softening and enhanced interchain interactions facilitate pressure-induced superconductivity. These findings offer critical insights into the mechanisms underlying pressure-induced superconductivity and its interplay with structural and electronic instabilities, accelerating the discovery of exotic quantum phenomena in low-dimensional van der Waals magnetic materials.
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JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Baorui Liu,Xinyu Shao,Zhe Kang,Hongqing Cheng,Dongying Hu
TiO 2 , as the mainstream of dye-sensitized photoanode, can provide two quantities of state density higher than ZnO. However, van der Waals forces between TiO 2 microcrystals make them more inclined to agglomerate, posing a major obstacle of poor dispersion and homogeneity. Since the charge kinetics of TiO 2 depends on reasonable microstructure arrangement, this study proposes an innovative strategy of sustainable lignin-driven homogenization of microarchitecture in TiO 2 . Herein, the uniform dispersion of TiO 2 microcrystals is successfully induced by alkali lignin (AL) with the reduced grain size of 42–18 nm, and the increased specific surface area of 879.55 m 2 /g. Moreover, AL does not change the anatase structure of TiO 2 . Notably, this micro-homogenized structure of more layered arrangement and active adsorption sites shortens the carrier/electron transport path, achieving high dye loading of 246 nM/cm 2 and photo-conversion efficiency (PCE) of 8.83 %, which exceeds the reported TiO 2 -based dye-sensitized solar cells. Moreover, AL substantially increases the J SC from 18.15 mA/cm 2 to 25.63 mA/cm 2 . Specially, molecular interaction between AL and TiO 2 further supports high PCE of >90 % after 240 h, with good stability. Consequently, this innovative strategy of lignin-driven micro-homogenization in TiO 2 serves as an inspiration for the development of biomass-enhanced TiO 2 -based photoelectric devices.
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NANO LETTERS
·
2025
·
IF 9.1
Liu Yang,Dong Wang,Zhen Hu,Zhuo Dong,Yan Zhang,Keqin Tang,Pengdong Wang,Junrong Zhang,Cheng Chen,Xingang Hou,Jie Li,Qiang Yu,Junyong Wang,Lin Wang,Kai Zhang
Topological surface states (TSS) in certain low-dimensional materials impart gapless band structure, massless quasiparticles, and nonlinear optical behavior, enabling distinct advantages for applications in low-energy photon detection. Herein, we develop a quasi-one-dimensional (quasi-1D) transition metal chalcogenide material, Ta2PdSe6, with robust TSS, which exhibits a gapless band structure protected by spin-momentum locking and time-reversal symmetry, alongside exceptional transport properties, including a high carrier mobility exceeding 104 cm2·V–1·s–1. The quasi-1D chain-like structure induces pronounced anisotropy and significantly reduces carrier scattering, further enhancing transport efficiency. Benefiting from these unique characteristics, the Ta2PdSe6-based terahertz (THz) detectors demonstrate outstanding performance with responsivity exceeding 3.63 A·W–1, a noise equivalent power of 7.4 pW·Hz–1/2 at 0.28 THz, ultrafast response speed of 1.15 μs, and an exceptional photocurrent anisotropic ratio of 68.3. These findings highlight the significant potential of strong TSS in emerging materials to achieve high-performance and multifunctional THz detection.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2025
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IF 6.2
Yibo Liu,Yuee Tian,Hong Peng,Fulong Zhang,Xiaobo Huang,Genqiang Chen,Lin Zhou,Zhiping Che
Paeonol is the main active ingredient in the Chinese medicinal herb peony root bark. To discover biorational natural product-based fungicides, 25 paeonol derivatives (5a–y) containing a pyrazole ring were designed and synthesized by ingeniously introducing a pyrazole five-membered heterocyclic ring, and their structures were well characterized by 1H NMR, 13C NMR, high-resolution mass spectrometer (HRMS), and m.p. The stereochemical configurations of six target compounds, 5c, 5f, 5g, 5o, 5s, and 5v, were unambiguously subjected to single-crystal X-ray diffraction. Furthermore, we evaluated the bioactivities of these target compounds as anti-oomycete and antifungal agents against two serious agricultural diseases, Phytophthora capsici and Fusarium graminearum. Among all tested compounds, (1) nine compounds 5b–d, 5f, 5g, 5r, 5s, 5u, 5w displayed promising anti-oomycete against P. capsici, with EC50 values ranging from 22.1 to 34.5 mg/L, and the protective effect of the target compounds against P. capsici in vivo further confirmed the above results. (2) Six compounds 5g, 5k, 5m, 5t, 5w, 5x displayed promising antifungal against F. graminearum, with EC50 values ranging from 38.2 to 86.0 mg/L. Moreover, some interesting results of structure–activity relationships were also observed. The results of this study pave the way for further design, synthesis, and development of paeonol derivatives as potential botanical anti-oomycete and antifungal agents in crop protection.
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CHEMOSPHERE
·
2025
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IF 8.1
Siyu Liu,Xinyue Zhao,Yaobin Ding,Lina Wang,Yiyang Li,Jun He,Chengjun Wang
Water microdroplets are ubiquitous in atmospheric environment, where photo-irradiation and O 3 are available, while photo-decomposition of trace organic pollutants in microdroplets and the impact of atmospheric environmental factors on the photo-chemistry remain unclear. In this study, photochemical generation of reactive oxygen species and degradation of typical endocrine disturbing compounds (EDCs) in microdroplets were investigated under various atmospheric conditions (O 3 , inorganic anions and fulvic acid). The experimental results demonstrate that EDCs can be degraded in microdroplets, and the degradation efficiency is further improved under the stimulated solar irradiation. The degradation efficiency of estrone (E1), estradiol (E2), ethinyl estradiol (EE2), testosterone (T) exposing to sunlight irradiation is 55.45 %, 64.11 %, 89.72 %, and 24.72 %, respectively. The degradation of EDCs is attributed to the generation of hydroxyl and superoxide radicals at or near the microdroplets interface. In addition, with O 3 , the degradation efficiency of EDCs in microdroplets increased to 100 %, 100 %, 100 %, and 83.87 %, respectively. Common inorganic ions (Cl − , NO 3 − , SO 4 2− , and HCO 3 − ) and fulvic acid exhibit positive effects for degradation of EDCs at varying extents. Overall, these findings shed light on the generation of reactive oxygen species and degradation patthways of trace EDCs in microdroplets and improve the understanding of the effect associated with relevant environmental factors in atmospheric microdroplets.
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Nature Communications
·
2020
·Vol. 11
·期 1
·1-9
·
IF 12.121
Shi Yi,Huang Wen-Mao,Li Jian,Zhou Yue,Li Zhong-Qiu,Yin Yun-Chao,Xia Xing-Hua
The growth of atomically dispersed metal catalysts (ADMCs) remains a great challenge owing to the thermodynamically driven atom aggregation. Here we report a surface-limited electrodeposition technique that uses site-specific substrates for the rapid and room-temperature synthesis of ADMCs. We obtained ADMCs by the underpotential deposition of a non-noble single-atom metal onto the chalcogen atoms of transition metal dichalcogenides and subsequent galvanic displacement with a more-noble single-atom metal. The site-specific electrodeposition enables the formation of energetically favorable metal–support bonds, and then automatically terminates the sequential formation of metallic bonding. The self-terminating effect restricts the metal deposition to the atomic scale. The modulated ADMCs exhibit remarkable activity and stability in the hydrogen evolution reaction compared to state-of-the-art single-atom electrocatalysts. We demonstrate that this methodology could be extended to the synthesis of a variety of ADMCs (Pt, Pd, Rh, Cu, Pb, Bi, and Sn), showing its general scope for functional ADMCs manufacturing in heterogeneous catalysis.
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JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Jiangping Song,Mengjun Wu,Tian Tian,Sixiu Zeng,Dan Liu,Hao Li,Shengqiu Zhao,Haolin Tang
The vaporization-condensation-conversion method is the prominent technique used for synthesizing red phosphorus/carbon (P/C) composites. However, its practical application is limited by the inevitable formation of toxic white phosphorus (WP) residues, posing severe safety concerns. Theoretical calculations of the WP polymerization process performed in this study revealed that the introduction of iodine can considerably accelerate the polymerization of WP molecules, yielding P/C composites free of WP residues. Furthermore, in the resulting iodine-doped P/C (I-P/C) composites, iodine forms I-P bonds, considerably enhancing electronic conductivity and promoting faster Na-P redox kinetics compared to those in the original P/C composites. Consequently, an I-P/C electrode exhibited a capacity of 1193 mA h g⁻ 1 , retaining 100 % of its capacity after 100 cycles at 0.2 A g⁻ 1 . Furthermore, an assembled I-P/C||Na 3 V 2 (PO 4 ) 2 F 3 full cell retained 91.9 % of its capacity after 200 cycles at 0.5 A g⁻ 1 . Additionally, the full cell exhibited a high energy density of 132.2 W h kg⁻ 1 at a power density of 9942.1 W kg⁻ 1 , demonstrating potential to complete charging or discharging within ∼57 s. Finally, an I-P/C||Na 3 V 2 (PO 4 ) 2 F 3 pouch cell, with a capacity of 0.36 A h, demonstrated excellent cycling performance even after 150 cycles at 0.05 A g⁻ 1 .
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Boyuan Di,Xinlu Li,Xiaokun Wen,Wenyu Lei,Xinyue Xu,Wenchao Kong,Haixin Chang,Jia Zhang,Wenfeng Zhang
High-performance p-type atomically thin transistors are fundamental components in CMOS-based digital logic circuits for beyond-silicon electronics. Compared with the recent breakthrough in high-quality semimetal contacts approaching the quantum limit on n-type atomically thin channel transistors, achieving high-performance p-type analogues with high-quality contacts remains challenging, which was mainly hindered by the lack of proper high-work-function metallic electrodes with Fermi level unpinning capacity. Herein, we demonstrate that semimetal TiS2 electrodes prepared with a damage-free transfer process can be a feasible option for p-type atomically thin MoTe2 transistors. Owing to its intrinsic large work function (∼5.3 eV) and high-quality contacts with negligible Schottky barrier at the TiS2/MoTe2 interface, the scaled p-type bilayer MoTe2 transistor with 500 nm channel length and the monolayer transistor with 800 nm channel length exhibit a high on-state current (Ion) of 100 μA/μm with the on/off ratio (Ion/off) over 106 and an Ion of 68 μA/μm with the Ion/off ratio over 107, respectively. Such a demonstration will enable monolithic atomically thin MoTe2-based beyond-silicon electronics via the common CMOS technology.
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FOOD CHEMISTRY
·
2025
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IF 9.8
Tingting Gao,You Tian,Ji Ma,Da-Wen Sun
Wheat starch and fatty acid can combine as wheat starch-fatty acid (WS-FA) complexes playing crucial roles in health but are sensitive to ambient humidity. Therefore, microwave-processed WS-FA complexes incorporating fatty acids in different carbon chain lengths (C12 to C18) and unsaturation degrees (C18:0 to C18:3) were prepared, of which structural information, digestive characteristics and humidity-induced storage stability were investigated. Results showed that both chain lengths and unsaturation degrees of fatty acids affected the structural and digestive properties of WS-FA complexes. According to the moisture absorption behaviours, WS-FA complexes exhibited lower critical absorption relative humidities (CARH: 44 %–68 % RH) and equilibrium moisture values ( M e : 17.7 %–20.5 %) than pure wheat starch (CARH: 72 % RH; M e : 27.7 %), indicating ambient humidity >44 % RH significantly impacts their storage stability. Beyond structural and digestive analysis, this study first investigates humidity-induced instability of WS-FA complexes for the first time, highlighting the need for customized standards for starch-lipid complex preservation.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-12
·
IF 15.7
Cheng Zhu,Liu Hang,Zhang Menghang,Pan Hui,Sheng Chuanchao,Li Wei,Wagemaker Marnix,He Ping,Zhou Haoshen
Rechargeable Li||I 2 batteries based on liquid organic electrolytes suffer from pronounced polyiodides shuttling and safety concerns, which can be potentially tackled by the use of solid-state electrolytes. However, current all-solid-state Li||I 2 batteries only demonstrate limited capacity based on a two-electron I − /I 2 polyiodides chemistry at elevated temperatures, preventing them from rivaling state-of-the-art lithium-ion batteries. Herein, we report a fast, stable and high-capacity four-electron solid-conversion I − /I 2 /I + chemistry in all-solid-state Li||I 2 batteries at room temperature. Through the strategic use of a highly conductive, chlorine-rich solid electrolyte Li 4.2 InCl 7.2 as the catholyte, we effectively activate the I 2 /I + redox couple. This activation is achieved through a robust I-Cl interhalogen interaction between I 2 and the catholyte, facilitated by an interface-mediated heterogeneous oxidation mechanism. Moreover, apart from serving as Li-ion conduction pathway, the Li 4.2 InCl 7.2 catholyte is demonstrated to show a reversible redox behavior and contribute to the electrode capacity without compromising its conductivity. Based on the I − /I 2 /I + four-electron chemistry, the as-designed all-solid-state Li||I 2 batteries deliver a high specific capacity of 449 mAh g -1 at 44 mA g -1 based on I 2 mass and an impressive cycling stability over 600 cycles with a capacity retention of 91% at 440 mA g -1 and at 25 °C.
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