JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
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2022
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IF 6.364
Pengbin Wang,Qinghu Guo,Fei Li,Fangquan Xia,Hua Hao,Huajun Sun,Hanxing Liu,Shujun Zhang
The development of ferroelectric ceramics with both large piezoelectric responses and broad service temperature range is still a key challenge for practical applications due to the so-called d 33 - T C trade-off. Here we report the strategy to utilize the synergistic contribution of morphotropic phase boundary and enhanced local structural heterogeneity, in which an excellent piezoelectric coefficient d 33 of 680 pC/N and a high Curie temperature of 330 ℃ are simultaneously achieved in Sm modified 0.25PIN-0.325PZ-0.425PT ceramics. The underlying mechanism responsible for the high dielectric and piezoelectric properties is studied based on cryogenic dielectric measurement and Rayleigh analysis. Of particular interest is that, a high field-induced strain of 0.19% is achieved in 0.25PIN-0.32PZ-0.43PT at electric field of 20 kV/cm, corresponding to a piezoelectric d 33 * of 945 pm/V, showing an excellent temperature stability with minimal variation of 7% up to 310 °C. This work demonstrates the introduction of high temperature end members and rare earth doping are conducive to ferroelectric solid solutions with desired broad usage temperature range and superior piezoelectric properties , which will greatly benefit high temperature actuator applications.
研究领域:
材料科学
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物理学
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DOI
高影响因子
Polymers
·
2020
·Vol. 12
·期 2
·333
·
IF 3.426
Yifan Chen,Qian Li,Yujie Li,Qijun Zhang,Jingda Huang,Qiang Wu,Siqun Wang
In this work, cellulose nanocrystals (CNCs) obtained by the acid hydrolysis of waste bamboo powder were used to synthesize cellulose nanocrystal-g-poly(acrylic acid-co-acrylamide) (CNC-g-P(AA/AM)) aerogels via graft copolymerization followed by freeze-drying. The structure and morphology of the resulting aerogels were characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM), and the CNC-g-P(AA/AM) aerogels exhibited excellent absorbent properties and adsorption capacities. Subsequent Pb(II) adsorption studies showed that the kinetic data followed the pseudo-second-order equation, while the adsorption isotherms were best described using the Langmuir model. The maximum Pb(II) adsorption capacity calculated by the Langmuir model reached up to 366.3 mg/g, which is a capacity that outperformed that of the pure CNC aerogel. The CNC-g-P (AA/AM) aerogels become structurally stable through chemical cross-linking, which enabled them to be easily regenerated in HCl solution and retain the adsorption capacity after repeated use. The aerogels were found to maintain 81.3% removal efficiency after five consecutive adsorption–desorption cycles. Therefore, this study demonstrated an effective method for the fabrication of an aerogel adsorbent with an excellent reusability in the effective removal of Pb(II) from aqueous solutions.Keywords:cellulose nanocrystal;graft copolymerization;aerogel;adsorption;lead
研究领域:
材料科学
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环境科学
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2022
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IF 8.025
Ruike Wang,Mingzhi Yang,Yingying Wu,Rundong Liu,Mengchen Liu,Qiong Li,Xiao Su,Yongjuan Xin,Wenqian Huo,Qihong Deng,Yue Ba,Hui Huang
To investigate the mechanism of Silent information regulator 1 (SIRT1) regulation of DNA methylation and thus the expression of synaptic plasticity-related genes induced by lead (Pb) exposure, the early-life Sprague-Dawley rats and PC12 cells were used to establish Pb exposure models and treated with SIRT1 agonists (resveratrol and SRT1720). In vivo results demonstrated that Pb exposure increased the expression of DNMTs, MeCP2, PP1 and cleaved caspase3, decreased the expression of SIRT1, BDNF and RELIN and altered DNA methylation levels of synaptic plasticity genes. Moreover, we observed marked pathological damage in the hippocampal CA1 region of the 0.2 % Pb-exposure group. After treatment with resveratrol, the effects of Pb exposure on the expression of the above molecules and pathological features were significantly ameliorated in the hippocampus of rats. In vitro results showed that after the treatment with SRT1720, the expression of SIRT1 was activated and thus reversed the effect on DNMTs, MeCP2, apoptosis and synaptic plasticity-related genes and their DNA methylation levels induced by Pb exposure. In conclusion, we validated the important protective role of SIRT1 in neurotoxicity induced by Pb exposure through in vivo and in vitro experiments, providing potential therapeutic targets for the treatment and prevention of brain damage.
研究领域:
神经科学
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分子生物学
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毒理学
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DOI
PubMed
高影响因子
Sustainability
·
2025
·Vol. 18
·期 1
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IF 3.3
Runlai Luo,Nan Zhao,Zhengmiao Jia,Sihan Wu,Xing Chen,Zhongyuan Li,Feng Ju,Yongming Luo,Hui Li
The simultaneous stabilization of Cu, Ni, Pb, and As in sustainable environmental development remains a significant challenge in heavy metal remediation. In this paper, liquid phase equilibrium experiments have evaluated the immobilization efficiency of 20 potential stabilization materials. Soil stabilization experiments, material characterization, and long-term effectiveness assessments have been performed to investigate the efficient composite stabilization agent and its underlying mechanisms. Results demonstrate that seven materials, including calcium oxide (CaO) and hydroxyapatite (HAP), exhibit multi-metal immobilization capabilities. Among single-material stabilization in soil, HAP for Pb, zero-valent iron (ZVI) for As, and blast furnace slag (BFS) for Cu exhibit prominent stabilization efficiency, yet they cannot efficiently stabilize the four heavy metals simultaneously. Subsequently, the ZVI:BFS:CaO composite agent (6:3:1 mass ratio, 10% addition rate) has been proposed by formulation optimization, achieving remarkable stabilization rates: 99.92% for Cu, 96.16% for Ni, 92.06% for Pb, and 99.58% for As. XRD, XPS, and SEM-EDS analyses confirm that the stabilization occurs through synergistic mechanisms including precipitation, complexation, and lattice encapsulation. The composite stabilizing agent withstood 15 wet–dry and 150 freeze–thaw cycles, with four types of heavy metals stabilization rates > 60%, confirming its long-term effectiveness.
研究领域:
环境科学
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土壤修复
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重金属稳定化
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材料科学
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Xinyu Liu,Taotao Ai,Yazhong Zheng,Xinyu Chen,Qin Li,Qian Qiu,Ying Zheng,Yuan Zhou,Haikui Song,Kun Yu,Chunlin Song,Haibo Zhang,Yan Yan,Gang Liu
The lead-free piezoelectric ceramics used in piezoelectric actuators have attracted extensive attention owing to their substantial electric-field-induced strain. In this study, The (1- x )Bi 0.5 (Na 0.41 K 0.09 )TiO 3 - x Sr(Hf 0.5 Sb 0.4 )O 3 (BNKT- x SHS) piezoelectric ceramics were synthesized using the conventional solid-state reaction method. The impact of SHS substitution on the microstructure and electrical properties was systematically explored. Among them, the BNKT-0.015SHS sample, featuring ergodic relaxor states, demonstrates a high piezoelectric strain coefficient ( d 33 *) of 785 p.m./V under a low electric field of 50 kV/cm(Strain = 0.392 %). It exhibits a repeatable strain value of 0.47 % under an 80 kV/cm electric field( d 33 * = 590 p.m./V). Moreover, the strain values remain around 0.4 % between room temperature and 100 °C, with variations within 90 %. The heightened repeatable strain response is considered to be linked to the electric field-induced reversible phase transition occurring within the ergodic relaxor state. The higher strain temperature stability is ascribed to the coexistence of quadrilateral polar nanoregions and rhombic polydomain nanoregions. This study provides an effective example for achieving significant strain responses, presenting a feasible candidate material for applications in piezoelectric actuators.
研究领域:
材料科学
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物理学
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 31
·42824-42836
·
IF 7.8
Zhao Quan,Huang Tao,Xu Ou,Fu Jiali,Huang Jiaren,Zhao Yongqiang,Wang Suihao,Liu Dongxi,Chen Weixing,Zou Bingsuo
Organic–inorganic hybrid multimetal halides possess rich photophysical properties and great potential for multicolor emission and multifunctional optoelectronic applications, but their development is limited by phase separation and the difficulty of integrating multiple luminescent functions. Herein, we report a zero-dimensional Pb-In bimetallic halide, (C 9 H 20 N) 7 [InCl 4 ] 2 [Pb 3 Cl 11 ] (C 9 H 20 N + = 1-butyl-1-methylpyrrolidinium), as a structurally well-defined multimetallic crystalline platform. Under 340 nm excitation, the compound exhibits bright green emission at 518 nm with a high PLQY of 96.4%, originating from the [Pb 3 Cl 11 ] 5– cluster tri-polaron formed through phonon-assisted coupling among three [PbCl 6 ] 4– octahedra. Upon Sb 3+ introduction, an additional broadband red emission at 675 nm appears, associated with Sb 3+ -related triplet self-trapped exciton (STE) and Sb 3+ -In 3+ donor–acceptor pair (DAP), enabling excitation-dependent tunable emission from green to red. More importantly, under 365 nm excitation, the undoped crystal shows pronounced anti-thermal-quenching behavior, while the Sb 3+ -doped system exhibits temperature-responsive luminescence regulation and reversible red-orange-green thermochromism over 80–460 K. This work thus integrates efficient cluster-based green emission, Sb 3+ -induced red emission, antithermal-quenching behavior, and reversible thermochromic response in a single Pb-In multimetallic zero-dimensional crystalline platform, showing promise for solid-state lighting, optical anticounterfeiting, and information encryption.
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DOI
PubMed
高影响因子
Nature Communications
·
2026
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IF 18.1
Xu Yuyan,Zhang Xinyue,Wan Yangyang,Qin Bingchao,Pei Jun,Liu Hong,Song Xiaoxue,Jiang Shutong,Sun Zhongti,Zhang Yuqiao,Zhang Long,Liu Yong,Yu Qian,Zhao Li-Dong,Li Shun,Zhang Jianming
Hydrogen peroxide (H 2 O 2 ) plays a crucial role in environmental remediation, chemical synthesis, and energy storage. Nevertheless, its industrial production is energy consuming with significant environmental burdens. Here we show a proof-of-concept thermoelectrocatalytic strategy for H 2 O 2 production directly from seawater, driven solely by low-grade waste heat. A low-temperature thermoelectric (TE) material, Na- and Pb-codoped SnSe, is designed as a catalyst that enables efficient H 2 O 2 generation under a moderate temperature gradient (Δ T ). This system achieves an H 2 O 2 production rate of 6.1 mmol g −1 h −1 from seawater under Δ T = 120 K, which is competitive with the representative photocatalytic systems. Experimental and theoretical analyses reveal that Na/Pb-codoping improves the TE properties, promotes charge carrier migration under Δ T , and promotes the oxygen reduction reaction toward H 2 O 2 formation. The naturally formed strong electric layer at the catalyst-seawater interface further promotes both reaction kinetics and thermodynamic driving forces. Our finding provides a sustainable route for H 2 O 2 production from seawater using waste heat and demonstrates great potential of TE-catalysis for waste heat utilization.
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Xiaotong Lu,Xiaojiao Hou,Peining Han,Yuhang Li,Zhicheng Pan,Tieqiang Wang,Fanbao Meng,Yu Fu
Fe 3+ -dual-driven interfacial synthesis grows PB and PmPD simultaneously • Soft spraying enables one-step and eco-friendly MMM fabrication • PB/PmPD MMM combines photothermal evaporation and membrane separation • MMM realizes molecular-level integration for scalable fabrication A strategy combining soft spraying with Fe 3+ -dual-driven interfacial synthesis is developed to fabricate PB/PmPD mixed matrix membranes (MMMs). Fe 3+ serves dual roles as a coordination center for Prussian blue formation and an oxidant to initiate m -phenylenediamine polymerization (mPD), enabling synchronous generation and in-situ compositing of PB nanoparticles and PmPD matrix at the gas–liquid interface. This synergy enhances structural integrity and interfacial compatibility. The PB/PmPD MMM exhibits excellent performance in both photothermal evaporation and permeation separation. Under solar irradiation, it achieves an evaporation rate of 2.16 kg·m −2 ·h −1 and effectively purifies seawater and wastewater with removal rates exceeding 99%. In terms of membrane separation, it demonstrates over 98% rejection for various dyes, along with water permeance ranging from 89.41 to 117.17 LMH/bar, while exhibiting excellent antifouling and antibacterial properties. This work offers a versatile strategy for constructing multifunctional MMMs integrating evaporation and separation. Download: Download high-res image (153KB) Download: Download full-size image
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DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
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2025
·
IF 4.7
Han Zhang,Xuefeng Bai,Hua Ji,Xiaochuan Yu,Rui Li,Sijia Sun,Guocheng Lv,Hao Ding
Lead ions (Pb(Ⅱ)) cause serious environmental pollution and endanger human health and it is urgent to carry out efficient treatment. Herein, a strategy was proposed to enhance the immobilization and removal of Pb(Ⅱ) (including trace Pb(Ⅱ)) from water by coating SiO 2 on the surface of CaCO 3 to prepare CaCO 3 @SiO 2 composites using the carbonation method. The findings revealed that SiO 2 coating exhibits strong activation effects on CaCO 3 . The SiO 2 coating (loaded at 8.62 wt%) increased CaCO 3 specific surface area by over 20-fold, confirming its activating effect. The maximum immobilization amount of Pb(Ⅱ) by CaCO 3 @SiO 2 reached 3354 mg/g (over twice that of CaCO 3 ), and the removal rate of trace Pb(Ⅱ) (100 μg/L) was 99.5 %. The residual Pb(Ⅱ) concentration (5.5 μg/L) complies with WHO drinking water standard. Furthermore, CaCO 3 @SiO 2 showed selective removal of Pb(II), maintaining an 87 % percentage removal after 5 cycles of recycling. This study quantified dual mechanisms: surface adsorption-complexation dominated at low concentrations (100 % at 10 mg/L), while dissolution-precipitation plays the primary role at high concentrations (99.39 % at 500 mg/L), the removal mechanism of CaCO 3 @SiO 2 was greatly affected by the initial concentration of Pb(Ⅱ), therefore, the accurate contribution rate of each mechanism at different concentrations was calculated. The synergistic effect of CaCO 3 , its surface coated SiO 2, and the rate of increase in the system pH value was found to be the fundamental reason for the significant increase in the immobilization of Pb(Ⅱ) by CaCO 3 @SiO 2 .
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2018
·
IF 3.235
Xueni Lin,Zhiwei Lu,Wanlin Dai,Baichen Liu,Yuxin Zhang,Junye Li,Jianshan Ye
Recently, graphene-based nanomaterials have attracted widespread attention as new electrode-modified materials for different electrochemical sensing platforms. However, graphene-based nanomaterials modified heavy metal sensors often have the disadvantages in that their detection ranges are not wide enough. To solve this problem, an easy and feasible approach derived from laser engraving technique to fabricate a high-quality 3D porous graphene-based heavy metal sensor with a quite wide detection range was established. The nitrogen-doped laser engraved graphene (N@LEG) was synthesized via introducing polyaniline (PANI) and polyvinylpyrrolidone (PVP) as N-dopant. Herein, by coupling the unique electrochemical properties and the 3D porous structure framework with large electrochemical active surface areas of LEG with the strong metal ions affinity of N atoms, N@LEG modified glassy carbon electrode (N@LEG/GCE) with in-situ bismuth film modification has been successfully utilized for the simultaneous determination of Cd(II) and Pb(II) using square wave anodic stripping voltammetry (SWASV). After optimizing conditions, the proposed sensor exhibits quite wide linear ranges varying from 5 to 10 g L −1 and 10 to 380 g L −1 for Cd(II), and 0.5 to 10 μg L −1 and 10 μg L −1 to 380 μg L −1 for Pb(II), respectively. In addition, the detection limits are calculated to be 1.08 g L −1 (S/N = 3) for Cd(II) and 0.16 g L −1 (S/N = 3) for Pb(II), which are nearly 3 times and 60 times less than the guideline values of the drinking water presented by the World Health Organization (WHO), for Cd(II) and Pb(II), respectively. Furthermore, the results describe satisfactory advantages of remarkable sensitivity, selectivity, anti-interference, repeatability, reproducibility and stability. Besides, the fabricated sensor is proved to be a potential perspective to detect Cd(II) and Pb(II) in actual water samples.
研究领域:
材料科学
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分析化学
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DOI
高影响因子
JOURNAL OF SOILS AND SEDIMENTS
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2025
·
IF 3
Jin Meiqing,Sun Yuanchao,Chai Bing,Wang Minghu,Wu Yuping,Wu Weihong,Zhou Qingwei,Qiu Linlin,Du Jia,Fu Li
Purpose Decabromodiphenyl ethane (DBDPE) and lead (Pb), two prevalent contaminants in e-waste dismantling areas, pose significant threats to soil ecosystem health. However, the ecotoxicological effects of their co-exposure on soil invertebrates remain poorly characterized. Methods Avoidance behavior, survival rate, and growth-inhibition assays were performed to assess the combined toxic effects of DBDPE and Pb on earthworm ( Eisenia fetida ) in an artificial soil system over exposure periods of 7–21 d. Responses from multiple biochemical biomarkers, including superoxide dismutase (SOD), catalase (CAT), malondialdehyde (MDA), glutathione S-transferase (GST), and acid phosphatase (ACP) were also measured, and the data were integrated by the biomarker response index (BRI). Interaction between Pb and DBDPE on BRI was further analyzed by calculation of effect addition index (EAI). Results Avoidance behavior emerged as the most sensitive endpoint and exhibited concentration-dependent escalation under co-exposure conditions. While individual exposure to DBDPE (0–0.75 mg/kg) induced negligible impacts on growth and mortality, its combination with Pb (1000 mg/kg) resulted in significant synergistic effects. Similarly, biochemical biomarkers—including SOD, CAT, MDA, GST, and ACP—showed markedly greater alterations in co-exposure groups compared to single DBDPE treatments. The BRI revealed only slight alterations in biological health across most treatments. The EAI values indicated that antagonistic effects dominated the interaction between DBDPE and Pb. Conclusion Our findings demonstrated significant variation in biomarker sensitivity to pollutant exposure. Notably, short-term sub-lethal co-exposures may elicit synergistic effects on avoidance, growth, and mortality, revealing a time-concentration toxicity dependency. These results provide novel insights into the interaction between heavy metals and organo-pollutants and highlight the ecological hazards posed by emerging brominated flame retardants (e.g., DBDPE) in heavy metal-contaminated soil systems.
研究领域:
环境科学
·
毒理学
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产品关联
DOI
高影响因子
Nature Photonics
·
2025
·
IF 32.9
Yang Xuke,Ma Tianjun,Hu Haojun,Ye Wenjiang,Li Xin,Li Mingyu,Zhang Afei,Ge Ciyu,Sun Xianglang,Zhu Yongxin,Yan Shuyu,Yan Jun,Zhou Ying,Li Zhong’an,Chen Chao,Song Haisheng,Tang Jiang
All-perovskite tandem solar cells are promising as next-generation high-efficiency photovoltaic devices. However, further progress in tin-lead (Sn–Pb) mixed perovskites, which are essential as the narrow-bandgap bottom sub-cell, is hampered by unbalanced crystallization processes, leading to inhomogeneous films and reduced power conversion efficiency (PCE). Here we provide a complete understanding of the formation of Sn–Pb films, from the precursor solution to the final film. We find that the total crystallization barrier for Sn-based perovskites is limited by the desorption of dimethyl sulfoxide (DMSO), while Pb-based perovskites experience a smaller DMSO desorption barrier. By engineering the reaction barrier in mixed films via tailoring the DMSO content, we obtain synchronous Sn–Pb perovskite crystallization and high-quality homogeneous films. On the basis of this understanding, we demonstrate single-junction Sn–Pb perovskite solar cells with a PCE of 22.88% and all-perovskite tandem devices with a certified PCE of 28.87%, fabricated by antisolvent-free methods. The unencapsulated tandem devices retain 87% of their initial PCE after about 450 h with maximum power point tracking under 1 sun illumination.
研究领域:
材料科学
·
能源科学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）