ACS Applied Electronic Materials
·
2024
·
IF 4.3
Rui Huang,Hongye Wang,Jian Zhang,Hua Hao,Zhonghua Yao,Hanxing Liu,Minghe Cao
Amorphous engineering is becoming a competitive strategy to address the huge challenge of low energy storage density, efficiency, and breakdown strength in dielectric ceramic capacitors, owing to the low remnant polarization and high breakdown strength of the amorphous structure. Herein, BaTiO3-Bi(Co0.5Zr0.5)O3 (BT-BCZ) thin films with an amorphous structure is proposed, which is expected to obtain large ΔP (Pmax – Pr) and energy storage density. Investigations on the electric performance of these thin film materials present that Bi3+ ions with a special electronic structure enhance the polarization of amorphous materials; simultaneously, the defect dipole structure formed by Co2+ ions and oxygen vacancy will be beneficial to the increment of polarization, while maintaining low remnant polarization. As expected, an outstanding energy storage density of 109.14 J cm–3 and efficiency of 81.17% are simultaneously realized in 0.85BT-0.15BCZ thin film. Moreover, an excellent temperature and cycle stability in wide temperature (20–150 °C) and cycle (1–105) ranges are exhibited, which suggests that BaTiO3-Bi(Co0.5Zr0.5)O3 thin films with an amorphous structure possess an extensive application prospect in dielectric ceramic capacitors.
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高影响因子
VACUUM
·
2024
·
IF 3.8
Bairui Tao,Xiangru Ren,XiaoJie Liu,Fengjuan Miao
The ZIF-67/NiS composite electrode was prepared on nickel foam (NF) matrix by hydrothermal method . NiS has been widely studied in sensors and supercapacitors due to its good electron transfer ability and good pseudocapacitor performance. Therefore, we prepared ZIF-67/NiS composite electrode. The synthesised ZIF-67/NiS composite electrode not only has certain electrochemical performance of battery type electrode, but also is sensitive to lactic acid (LA), and can be used as a non-enzymatic LA sensor and a dual-function material for supercapacitors . The detection limit of LA concentration in alkaline solution is 0.8 μM, and the sensitivity is 1.34 μA μM −1 cm −2 . Indicating that the electrode has good electrochemical sensing performance. The GCD test results show that the charging capacity of the ZIF-67/NiS is 2.5 times that of the ZIF-67. The ZIF-67/NiS composite has good cyclic performance, and the capacitance retention rate of the ZIF-67/NiS composite is 87% at 10 A/g current density .
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JOURNAL OF MOLECULAR STRUCTURE
·
2025
·
IF 4.7
Xingshi Li,Ruihan Zhang,Linlin Chen,Zhihui Cheng,Yaoguo Huang,Yali Zhang
A novel composite material, MIBuXATT@GO, was synthesized by functionalizing graphene oxide (GO) with a bi-ligand triazole-thione ligand, 3-methyl isobutylxanthate-4-amino-1,2,4-triazole-5-thione (MIBuXATT), for the efficient adsorption of Cu(II) ions. This modified material served as an adsorbent to enhance the selective adsorption of Cu(II) from wastewater by synergistically combining physical and chemical adsorption mechanisms. MIBuXATT@GO was characterized by XRD, SEM/EDS, and FTIR. Under the optimal conditions (pH=4, adsorbent dosage 250 mg/L, contact time 60 minutes), the maximum adsorption capacity of Cu(II) by the material is 97.24 mg/g, which is 1.3 times higher than that of GO. Meanwhile, the adsorption process of MIBuXATT@GO to Cu(II) is characterized as spontaneous endothermic chemisorption. Furthermore, the experimental results regarding metal ion adsorption selectivity indicate that MIBuXATT@GO exhibits superior selectivity for Cu(II) compared to Mn(II), Zn(II), Co(II), and Ni(II), which is an improvement over GO. The results indicate that MIBuXATT@GO is a promising adsorbent for the removal of Cu(II) ions from aqueous solutions, offering high capacity, rapid kinetics, and excellent selectivity. The adsorption mechanism was elucidated through FTIR, UV, XPS, and DFT calculations, revealing the critical role of the thiocarbonyl and triazole-thione functional groups in Cu(II) coordination. This work provides a new strategy for designing efficient adsorbents for heavy metal ion removal.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
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IF 9.7
Jiaoping Si,Hongjing Liu,Wendong Zhang,Dengyu Jiao,Wangxing Ai,Yuerui Ma,Lihuan Feng,Xing’an Dong,Wenjie He,Peng Chen
The catalytic conversion of nitrogen oxides (NO x ) to non-toxic products has emerged as a critical strategy for air pollution control under stringent emission regulations. Photocatalytic NO x removal performance highly depends on the transmission of photogenerated electrons and the amount of reactive oxygen species (ROS) generated. Herein, the Bi/BiOCl/SrTiO 3 heterostructure photocatalyst was prepared by a simple in situ synthesis method to address the limitations of conventional NOx removal systems. Due to the synergistic effect of bismuth (Bi) surface plasmon resonance (SPR) and the built-in electric field in BiOCl/SrTiO 3 S-scheme heterojunction, Bi/BiOCl/SrTiO 3 showed strong light absorption ability and high charge separation efficiency, with the highest NO removal efficiency reaching 70 %. The enhanced electronic interaction between Bi and BiOCl/SrTiO 3 induced Bi-O covalent bonds with the BiOCl layer to facilitate fast charge separation, promoting the rapid transfer of interfacial photogenerated carriers, this process induces the activation of O 2 and H 2 O to form reactive oxygen species (ROS) to promote the oxidative removal of NO. This study provides new insights into the development of effective photocatalysts with fast charge separation by synergistic metal active sites and built-in electric field of heterojunction for air pollutant purification.
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PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Liu Yang,Zihao Fan,Fujun Cui,Taolong Wu,Tingxu Fang,Yujie Guo,Li Tian,Bo Pang,Gaohong He,Xuemei Wu
Vanadium redox flow battery (VRFB) is promising large-scale energy storage technology for renewable energies, while the sluggish kinetics of vanadium redox reaction restricts the efficiency at high current density. Herein, the strategy of boosting V 2+ /V 3+ redox reaction by atomic Bi active sites decorated graphite felt electrode derived from bismuth-based metal−organic framework (Bi-MOF) is proposed. Bi-MOF, dispersing abundant Bi metal sites on porous carrier, helps the Bi atoms to form atomic active sites easily by coordinating with N through the nitrogen source mediated carbonization process. Porous nanobundles of atomic Bi catalyst uniformly bind to the graphite felt, exhibiting over 2 folds increase in specific surface area, higher V 2+ /V 3+ redox peak currents and reversibility, and one order of magnitude lower of charge-transfer resistance. The atomic Bi active sites decorated graphite felt negative electrode achieves high VRFB performance even with the vanadium ions heavily permeable Nafion membrane, showing 13.1 % higher energy efficiency at 200 mA cm –2 (80.2 % vs. 70.9%), 68.1% increase in electrolyte utilization comparing to the pristine graphite felt, and keeping stable during 1500 charge/discharge cycles. The performance is superior to the reported metal−organic frameworks (MOFs)-derived catalyst decorated electrodes.
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MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 11
·1-16
·
IF 5.3
Feng Luping,Li Xinfeng,Wang Jianghong,Chen Enjun,Fan Yujie,Jin Leyao,Tang Peisong,Zhang Lixiang
A visible-light-powered photoelectrochemical (PEC) sensor was devised for chlorpyrifos (CPs) determination using metallic Bi-decorated BiVO 4 nanosheets (Bi@BiVO 4 NSs) with localized surface plasmon resonance (SPR) synthesized via a one-step hydrothermal method. It was observed that Bi@BiVO 4 -based PEC sensors exhibit significantly enhanced PEC responses over pristine BiVO 4 due to the collaborative effect of metallic Bi’s SPR phenomenon and BiVO 4 ’s visible-light-driven properties. Furthermore, the addition of CPs selectively suppresses the photocurrent signal of the sensor due to the in-situ formation of Bi-CPs complexes, which hindered electron transfer through specific chelation reactions between Bi sites and CPs. The designed PEC sensor achieved high-sensitivity detection of CPs, with a linear concentration range from 0.02 to 20 ppb and a detection limit of 0.01 ppb. These attributes may offer a blueprint for developing diverse PEC sensing systems to monitor various environmental pesticide contaminants like CPs by synergistic integration of visible-light-responsive BiVO 4 and SPR-active metallic Bi. Graphical
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高影响因子
Advanced Science
·
2025
·Vol. 12
·期 27
·2502832
·
IF 14.1
Kai-Yu Yang,Xiaoyuan Li,Yuanxin Jiang,Liangliang Wang,Kai Guo,Lei Miao,Junliang Chen,Jiye Zhang,Lin Li,Yusong Du,Guang-Hui Rao,Jun Luo,Jing-Tai Zhao
Segmentation is a widely adopted strategy to enhance the efficiency of medium- and high-temperature thermoelectric devices by capitalizing on the distinct properties of materials across various temperature ranges. Establishing a highly compatible matching relationship is crucial for maximizing conversion efficiency. In this study, the concepts of materials’ compatibility factor and relative current density into the screening process are emphasized for universal adaptability. The effectiveness and practicality of the theoretical model for optimal segmented combinations are validated through COMSOL finite element simulations and experimental results. A segmented thermoelectric power generation device is constructed that integrates the environmentally friendly n-type Mg 3 (Sb,Bi) 2 with the optimal segmented pairing of Bi 0.5 Sb 1.5 Te 3 -GeTe. Notably, at a temperature difference of Δ T = 440 K, this device achieves a maximum conversion efficiency of 10.4% and a peak output power of 0.41 W. These findings provide a solid theoretical foundation for the development of efficient combinations of thermoelectric materials.
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高影响因子
Molecular Catalysis
·
2025
·
IF 4.9
Xuetong Liu,Chi Zhang,Nuoyan Li,Runfeng Li,Songlin Lei,Wei Hong,Shuguang Deng,Jun Wang
Herein, a novel and flexible self-supporting gas diffusion electrode (GDE) was fabricated, which including an electrodeposited Bi nanocomposite as a catalyst layer and MIL-101 derived porous carbon in the gas diffusion layer (GDL). Compared with the conventional fabrication of GDE electrodes, the electrodeposition approach can avoid the tedious drop-casting processes of the catalyst layer (CL). The in situ growth mode by electrodeposition can also ensure the firmly interaction between CL and current collector, thus enhancing the stability of the electrode. Meanwhile, the porous carbon derived from MIL-101 which with a high specific area is conducive for the CO 2 enrichment on the electrode, thus facilitate the reaction with high current density. Owe to the special structure, the resultant catalyst showed excellent performance for electrocatalytic CO 2 reduction reaction (CO 2 RR) with enhanced formic acid generation. Notably, at -1.37 V ( vs. RHE), a large current density of 400 mA cm -2 and a high formate Faraday efficiency (FE formate ) of 96.5 % were achieved, and the yield of formic acid reached 46.5 mmol cm -2 h -1 , which is superior to most electrocatalytic catalysts for CO 2 RR. In addition, the FE formate value remained high (>90 %) over a wide voltage window of 800 mV, and the catalyst also maintained stable operation at industrial current density for 70 h. This work provides a new strategy for the design of GDEs with novel structure to achieve high activity and durability for different electrocatalysis.
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高影响因子
MATERIALS CHARACTERIZATION
·
2025
·
IF 5.5
Qi-Hua Yang,Han-Qi Wei,Shu-Juan Zhao,Gui-Hua Li,Xuan Liu,Le Fu,Zhi-Wei Luo,Jia-Yong Si,Ge-Mei Cai
In recent years, the proliferation of counterfeit products has led to increased concerns about anti-counterfeiting technology, with traditional single-mode fluorescence methods proving insufficient due to their susceptibility to replication. The new copper-based halide materials have shown great potential in the field of multi-mode anti-counterfeiting due to their unique structure, excellent luminescence performance, and high defect tolerance. In this work, near-infrared emission of Cs 3 Cu 2 I 5 was achieved for the first time through Bi doping. By exploiting the dual emission center characteristics of the resulting Cs 3 Cu 2 I 5 :Bi, we demonstrated its excitation wavelength-dependent emission. It was then mixed with cyclohexane to prepare an advanced fluorescent anti-counterfeiting coating for screen printing, enabling high-precision pattern printing onto various substrates. The resulting anti-counterfeiting patterns exhibit excellent weather resistance, remaining virtually unchanged after 60 days at room temperature. This study lays the foundation for expanding the emission range of Cs 3 Cu 2 I 5 and adjusting multi band emission, and confirms its potential application in the field of multi-mode anti-counterfeiting.
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TOXICOLOGY AND APPLIED PHARMACOLOGY
·
2020
·
IF 3.347
Yang Zhang,Jiabei Zhou,Qin Ye,Kui Zeng,Jie Pan,Lu Chen,Yingying Wang,Bo Yang,Qiaojun He,Jianqing Gao,Su Zeng,Lushan Yu
Thioredoxin 1 (Trx1) and telomerase play key roles in the development and progression process of most tumors, and they both are promising drug therapy targets. We have, for the first time, discovered that Trx1 and telomerase had a dual-target synergistic effect. Based on that results, we designed a series of 6-dithio-2′-deoxyguanosine analogs (named as YLS00X) and verified whether they can inhibit Trx1 and telomerase simultaneously. TrxR1/Trx1 system activity and telomerase expression were significantly inhibited by 6-dithio-2′-deoxyguanosine analogs, especially YLS004. YLS004 can also cause ROS accumulation, and induce tumor cell apoptosis . The vitro antitumor activity of 6-dithio-2′-deoxyguanosine analogs using MTT assay on 11 different human cancer cells and found that human colon cancer cells(HCT116) and melanoma cells (A375) were the most sensitive cells to 6-dithio-2′-deoxyguanosine analogs treatment and vivo xenografts models also confirmed that. The serum biochemical parameters and multiple organs HE staining results of subacute experiments indicated that YLS004 might be mildly toxic to immune organs, including the thymus, spleen, and hematopoietic system . Besides, YLS004 was rapidly metabolized in the rats' blood. Our study revealed that YLS004, a Trx1 and telomerase inhibitor , has strong anti-tumor effects to colon cancer and melanoma cells and is a promising new candidate drug.
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PubMed
高影响因子
JOURNAL OF RARE EARTHS
·
2026
·
IF 9.6
Zhaojing Kuang,Chenhao Yang,Panpan Li,Yongmin Duan,Wenyan Zheng,Mengdi Ye,Ying Tian
The rapid growth of artificial intelligence is driving demand for secure and rewritable optical information technologies. Bi-based photochromic glasses are promising, yet achieving high optical contrast, stable rewritability, and controllable formation of low-valence Bi species remains challenging. Here, Ce partially replaces Sb to regulate the multivalent redox environment, while Eu 3+ provides luminescent readout. The optimized glass containing 0.2 mol% CeO 2 exhibits a coloration contrast of 24.85% within 30 s, 4.3 times that of the Ce-free glass, and reaches 70.86% after 130 s of 465 nm irradiation. It exhibits a relative transmittance recovery of 99.66% after heating at 300 °C for 5 min and retains 98% of its coloration contrast after 50 writing–bleaching cycles. Photochromism-induced optical attenuation enables a reversible Eu 3+ emission modulation of 84.78% in the optimized glass. Combined X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR), and high-resolution transmission electron microscopy (HRTEM) analyses indicate that Ce substitution regulates charge redistribution among Bi/Sb/Ce redox centers and oxygen-related localized states, facilitating reversible Bi 3+ reduction and the photoinduced formation of low-valence Bi-related nanoclusters. The coupled coloration and luminescence responses enable rewritable pattern recording, dual-mode optical verification, and matrix-based information encoding and reconstruction, providing an integrated Bi-based glass medium for multimodal optical storage and encryption.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2018
·
IF 3.927
Nan Wang,Xing Li,Yanling Yang,Tingting Guo,Xiaoxuan Zhuang,Siyang Ji,Tingting Zhang,Yi Shang,Zhiwei Zhou
The antibiotic sulfamethazine (SMT) has emerged as a water pollutant that is recalcitrant to conventional water treatment process. A number of technologies based on hydroxyl radical or sulfate radical induced SMT degradation have been described, but photo-induced degradation is not widely examined. Herein, photocatalysts of Bi-doped TiO 2 nano-composites supported by powdered activated carbon (PAC) were prepared, with variable molar ratios of Bi/Ti (0.06:1(6%), 0.08:1(8%), 0.1:1(10%) and 0.12:1(12%)) by a sol-hydrothermal method. The ratio of 10% (Bi-Ti/PAC (10%)) was most efficient to degrade SMT. Experimental variables during photocatalytic degradation were optimized for solution pH, catalyst dosage, initial SMT concentration, and coexisted anions. Under optimal conditions of 1.0 g/L catalyst, 20 mg/L initial SMT concentration, pH 6.0 and visible light irradiation at 400–780 nm, the degradation rate reached 81.18% in 300 min. Compared to Bi-Ti(10%) nano-composite without PAC, pure TiO 2 or commercially available P 25 , Bi-Ti/PAC(10%) was superior for SMT degradation with a degradation kinetic rate of 0.00531 min −1 . The properties of the prepared photocatalysts were characterized by X-ray powder diffraction, scanning electron microscope, X-ray photo-electron spectroscopy, Brunauer-Emmett-Teller and ultraviolet-visible diffuse reflection spectroscopy. This revealed that Bi-Ti/PAC (10%) had a smaller crystal size, larger specific surface area, larger pore size, stronger visible light absorption ability and lower band gap energy than pure TiO 2 . Ten intermediates of SMT were identified and a possible degradation pathway was proposed.
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