COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Yan Sang,Jingwei Xue,Junjie Hu,Peng Zhang,Fugang Zhao,Yanping He
High-low heterojunctions derived from metal-organic frameworks (MOFs) have promising applications in photocatalytic wastewater treatment because of their high photo-redox ability and boosted charge separation efficiency. Herein, Bi-MOF derived porous hierarchical Bi 2 O 3 /Bi 2 S 3 nanoflower-like heterojunctions were prepared by the calcination-hydrothermal method. The optimized Bi 2 O 3 /Bi 2 S 3 -2 composite showed a higher degradation rate of Cr (VI) (99.79 % in 30 min) than the pure substance. Moreover, comprehensive studies were conducted on the kinetics, stability and recycling of Bi 2 O 3 /Bi 2 S 3 , as well as optical characteristics . The active species trapping experiments confirmed that e - plays a dominant role in the elimination of Cr (VI). These findings provided novel strategies for construction of porous hierarchical heterojunctions with advanced visible-light-induced degradation performance. The enhanced photo-degradation efficiency of the optimal nanocomposite was assigned to the higher visible-light absorbance, separation of photogenerated carriers, reduced recombination of photo-induced carriers, and enhanced redox capability owing to the construction of porous hierarchical heterojunctions amongst the components.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Chao Gu,Gang Liu,Xinmei Liu,Limin Dong,Dongbo Wang,Yuewu Huang,Jingzhou Zhang,Zhitao Yang,Mingyang Wu,Liancheng Zhao
In the present study, we report the growth of nanorod-shaped bismuth sulfide on the surface of layered graphene, forming a bismuth sulfide/graphene heterostructure. The distinctive architecture significantly amplifies its ion adsorption capacity, thereby endowing the material with outstanding electrochemical performance. The specific capacitance of the Bi 2 S 3 electrode is determined to be 232.1 C g −1 at a current density of 1 A g −1 . In contrast, the specific capacity could reach 528.9 C g −1 when Bi 2 S 3 is incorporated with graphene (Bi 2 S 3 /Gr-2). Furthermore, the Bi 2 S 3 /Gr-2 demonstrates an impressive cycling life retention rate of 85.5 % during a stability test of 10,000 cycles at a high current density (10 A g −1 ). In contrast, the pure Bi 2 S 3 only achieves a retention rate of 67.4 %. In a hybrid supercapacitor system, the positive electrode consists of Bi 2 S 3 /Gr, while activated carbon (AC) serves as the negative electrode. The optimal energy density values can reach up to 39.36 Wh kg −1 at a power density of 800.09 W kg −1 , while maintaining excellent stability with a capacity retention rate of 97.5 % after undergoing 10,000 cycles at high current density. This study emphasizes the importance of advanced electrode materials for electrochemical energy storage and the conclusions，which offer crucial insights into the development of metal sulfides/graphene composite materials and their electrochemical performance.
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Nanoscale
·
2016
·Vol. 8
·期 35
·16005-16016
·
IF 7.76
Zhenglin Li,Ying Hu,Manli Chang,Kenneth A. Howard,Xuelei Fan,Ye Sun,Flemming Besenbacher,Miao Yu
Biocompatible single-component nanoplatforms simultaneously integrating multiple therapeutic functions with multiple imaging modes are desirable for anticancer treatments. Herein, elaborately-designed highly porous PEGylated bismuth sulfide nano-urchins (Bi2S3-PEG NUs) have been successfully synthesized by using Bi2O3 nanospheres as the sacrificial template via the hydrothermal process. It is demonstrated that the Bi2S3-PEG NUs possess high compatibility, stability, X-ray attenuation ability, near-infrared (NIR) absorbance and photothermal conversion capability, without noticeable toxicity. Based on both in vitro and in vivo results, the product shows excellent performance in highly effective photothermal therapy (PTT) guided by triple-modal imaging, including X-ray computed tomography (CT), and photoacoustic (PA) and infrared thermal (IRT) imaging, without noticeable toxicity in vivo. Importantly, the NUs are highly porous with a high specific surface area and copious mesopores, providing high loading capacity to accommodate drugs (or guest biomolecules) for further applications in chemotherapy and other additional functions. Doxorubicin is loaded as an example, showing a rather high loading capacity (∼37.9%) together with a bimodal on-demand pH/photothermal-sensitive drug release property. Such fascinating multifunctional nanoagents may have considerable applications in antitumor diagnosis and therapy in the clinic.
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RARE METALS
·
2026
·Vol. 45
·期 6
·e70290
·
IF 12.1
Fuyu Xiao,Xinye Li,Yiyi Wang,Fenqiang Luo,Lihui Chen,Zhenyang Huang,Xin Chen,Renpin Liu,Xiaochuan Chen,Lingxing Zeng,Qingrong Qian,Qinghua Chen
en This link goes to a English section zh This link goes to a Chinese section With high theoretical capacity and low cost, bismuth sulfide (Bi 2 S 3 ) demonstrates considerable potential as an anode for sodium/potassium-ion batteries (SIBs/PIBs). Unfortunately, significant volume variation, low electrical conductivity, and dissolution of polysulfides drastically weaken their intrinsic merits. Herein, we fabricate a Bi 2 S 3 -SPAN composite by confining Bi 2 S 3 nanoparticles within a sulfurized polyacrylonitrile (SPAN) nanofiber matrix. In this architecture, the confinement effect of SPAN inhibits the aggregation of Bi 2 S 3 nanoparticles and alleviates the volume expansion during charge and discharge. Critically, the “solid–solid” conversion mechanism significantly suppresses the “dissolution–shuttle” effect of polysulfides. These merits ensure that Bi 2 S 3 -SPAN anode presents prominent sodium/potassium storage performance across a broad temperature range (−15°C to –50°C), demonstrating its environmental adaptability. Especially, in SIBs, Bi 2 S 3 -SPAN anode harvests capacities of 259 mAh g −1 (90.9% retention) over 770 cycles and 537 mAh g −1 (85.2% retention) over 230 cycles at 0.5 A g −1 under −15°C and 50°C, respectively. The full cells also achieve excellent electrochemical performances. Notably, Bi 2 S 3 -SPAN-450||NVP pouch cell delivers a stable capacity of 183 mAh after 300 cycles at 0.2 A g −1 . This work is expected to offer inspiration for relieving volume expansion and the “dissolution–shuttle” effect of polysulfides in metal sulfide electrode materials for advanced SIBs/PIBs. 摘要 en This link goes to a English section zh This link goes to a Chinese section 硫化铋(Bi 2 S 3 )因其高理论容量和低成本,作为钠/钾离子电池负极材料展现出巨大潜力。然而,其显著的体积变化、较低的电子电导率以及多硫化物溶解等问题严重削弱了其本征优势。本文通过将Bi 2 S 3 纳米颗粒封装于硫化聚丙烯腈(SPAN)纳米纤维基底中,成功制备了Bi 2 S 3 -SPAN复合材料。在该结构中,SPAN的限域效应有效抑制了Bi 2 S 3 纳米颗粒的团聚,并缓解了充放电过程中的体积膨胀。更关键的是,“固-固”转化机制显著抑制了多硫化物的“溶解-穿梭”效应。这些优势使得Bi 2 S 3 -SPAN负极在宽温域范围(−15°C至50°C)内呈现出优异的钠/钾存储性能,证实其良好的环境适应能力。特别地, 在钠离子电池中,Bi 2 S 3 -SPAN负极在-15°C和50°C条件下,于0.5 A g −1 电流密度下分别实现了770次循环后容量保持259 mAh g −1 (容量保持率90.9%)和230次循环后容量保持537 mAh g −1 (容量保持率85.2%)的优异性能。相应的全电池同样表现出卓越的电化学性能。值得注意的是,Bi 2 S 3 -SPAN-450||NVP软包电池在0.2 A g −1 电流密度下循环300次后,仍能提供183 mAh的稳定容量。这项工作有望为缓解先进钠/钾离子电池中金属硫化物电极材料的体积膨胀和多硫化物“溶解-穿梭”效应提供启示。
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高影响因子
Small
·
2025
·
IF 12.1
Weiguang Lu,Jiaji Zhang,Zaichun Sun,Bingchu Mei
Recent breakthroughs in combustion-assisted thin film deposition techniques have revolutionized the development of large-area flexible electronics. These advancements enabled integration onto diverse substrates, offered significant cost-effective manufacturing merits, and reduced environmental impact. This technique utilizes fuel and oxidizer-ligands within the precursor to promote an exothermic reaction, enabling the low-temperature thin film deposition of various conductive, semiconductive, and high permittivity dielectric metal oxides. However, there are nearly no reports on the low-temperature deposition of metal sulfide thin film. In this study, leveraging the flexibility in precursor selection afforded by mist chemical vapor deposition, a solution-based combustion-assisted film deposition technique is employed to achieve the low-temperature deposition of Bi 2 S 3 thin films. The Bi(NO 3 ) 3 and thiourea & hydrazine hydrate are applied as the oxidizer and fuel, respectively. The deposition mechanism is discussed from the temperatures and the concentration of additives (hydrazine hydrate and NaOH). The photoelectrochemical photodetectors fabricated using the solution-processed Bi 2 S 3 thin films demonstrated interesting photodetection performance, exhibiting remarkable responsivity, rapid response speed, and high stability over 3600 s. This research would develop innovative approaches in low-temperature deposition processes for metal sulfide thin films and unlock their full potential in next-generation optoelectronic and energy conversion devices across multiple technological domains.
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PubMed
高影响因子
ANALYST
·
2025
·Vol. 150
·期 14
·3217-3224
·
IF 3.3
Jie Jiang,Xuening Wang,Kai Yu,Zhiping Sun,Qianyun Yu,Yang Chen
In order to achieve rapid extraction and sensitive detection of capsaicinoids, this study combined glass bead-assisted ultrasound extraction with a Bi2S3/rGO/MWCNT-COOH-modified screen-printed electrode. By integrating ethanol–water solvents and glass beads, the ultrasonic cavitation effect was enhanced, reducing the extraction time from 50 minutes to 22 minutes while maintaining high efficiency. The composite-modified SPE exhibited superior electrochemical performance, achieving a detection limit of 26 nM through differential pulse voltammetry (DPV). The response surface methodology optimized extraction parameters and real-sample validation demonstrated high reliability (recovery: 94.70–110.50%) and consistency with HPLC results. This approach offers a rapid, eco-friendly solution for on-site analysis of capsaicinoids in food safety and quality control applications.
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ACS Applied Nano Materials
·
2023
·
IF 5.9
Cijun Shuai,Xiuwen Gao,Yifeng Wang,Hongyi Qian,Wei Li,Shuling Liu,Huarui Zhou,Shuping Peng,Fangwei Qi
Bismuth sulfide (Bi2S3) could respond to near-infrared light to generate photocurrent, demonstrating tremendous potential in constructing self-powered electrical stimulation to accelerate bone regeneration. Nevertheless, the facile recombination of electron–hole pairs undermined its photoelectric performance. Herein, a sea-buckthorn-like nanostructured Bi2S3–BaTiO3 was synthesized by loading BaTiO3 nanoparticles onto Bi2S3 nanorods through a self-assembly method and then integrated into poly-L-lactic acid (PLLA) powders to fabricate PLLA/Bi2S3–BaTiO3 scaffolds. Piezoelectric BaTiO3 would deform under stress to produce instantaneous polarization, which triggered positive and negative charges presented on the relative surfaces of BaTiO3. Thus, the photogenerated electrons and holes of Bi2S3 would be, respectively, transferred to the positive and negative charged surfaces of BaTiO3, thereby achieving the electron–hole separation. Results revealed that under ultrasonic irradiation, the photoluminescence peak intensity of Bi2S3–BaTiO3 was significantly reduced compared with that of Bi2S3, confirming the improved electron–hole pair separation. Accordingly, the photocurrent of Bi2S3–BaTiO3 was increased by approximately 1.4 times in comparison with that of Bi2S3. The enhanced photocurrent effectively promoted cell proliferation and differentiation by upregulating alkaline phosphatase expression, enhancing calcium nodule deposition, and promoting cellular Ca2+ influx. Consequently, this work provided a perspective for establishing a self-powered electrical stimulated scaffold for bone repair.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Yanjie Han,Zhijia Zhu,Chunyan Hu,Jian Zheng,Baojiang Liu,Wei Wang
In this study, a novel three-dimensional, flower-like Cu-BiOCl/Bi 2 S 3 photocatalyst was synthesized using a two-step calcination and hydrothermal method , aiming at the efficient removal of tetracycline (TC). Through comprehensive characterization techniques, it was discerned that the incorporation of Cu ions extended the light absorption range of BiOCl. Additionally, the formation of a heterojunction significantly enhanced the separation efficiency of space charge. The unique three-dimensional flower-like architecture of the Cu-BiOCl/Bi 2 S 3 photocatalyst augments its surface area exposure and consequently, the density of active sites. This catalyst exhibited a remarkable degradation rate of approximately 95% for TC under visible light irradiation. This performance exhibits a notable enhancement over the degradation rates of BiOCl and Bi 2 S 3 , which are approximately 39% and 53% respectively, surpassing them by factors of 2.39 and 1.78. Electron spin resonance (ESR) analysis coupled with free radical trapping experiments pinpointed superoxide radicals (•O 2 - ) and photogenerated holes (h + ) as the pivotal active species orchestrating the photocatalytic degradation. Concludingly, a possible TC degradation pathway was proposed based on the intermediates generated during the photocatalytic reaction as detected by Liquid Chromatograph Mass Spectrometer (LC-MS) and Three-Dimension Excitation Emission Matrix (3D EEM).
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2022
·
IF 4.598
Gaozhi Ou,Anshun Zhao,Hui Liao,Zhaowei Zhang,Fei Xiao
Aflatoxin in food is a significant concern that threatens human health and life and causes a heavy burden on international trade and healthcare. In this work, we developed a new type of label-free electrochemical immunosensor for the high-sensitivity determination of aflatoxin B1 (AFB1) based on Au nanoparticles decorated urchin-like Bi 2 S 3 (Au/Bi 2 S 3 ) anchored on electrochemically reduced graphene oxide (ERGO) modified carbon fiber (CF) microelectrode (Au/Bi 2 S 3 /ERGO/CF). The morphology and characterization of the modified microelectrode were investigated using scanning electron microscopy (SEM), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and differential pulse voltammetry (DPV). Under the optimum conditions, the label-free electrochemical immunosensor detected AFB1 within the linear range of 10 pg mL −1 to 20 ng mL −1 , with a low detection limit of 8 pg mL −1 and high sensitivity (0.48 μA/ng mL). The immunosensor showed high selectivity, good reproducibility, and acceptable stability. The immunosensor was applied to detecting AFB1 in cornflour samples, offering excellent reliability and accuracy compared with typical detection methods. Finally, this platform provides a superior prospect for the development of a nanohybrid immunosensor.
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高影响因子
Frontiers in Bioengineering and Biotechnology
·
2024
·
IF 4.3
Feng Kai,Di Ya,Han Meng,Yan Weitao,Guo Yulin,Huai Xiangqian,Wang Yimin
A novel photoelectrochemical (PEC) aptasensor based on a dual Z-scheme α-Fe2O3/MoS2/Bi2S3 ternary heterojunction for the ultrasensitive detection of circulating tumor cells (CTCs) was developed. The α-Fe2O3/MoS2/Bi2S3 nanocomposite was prepared via a step-by-step route, and the photoproduced electron/hole transfer path was speculated by conducting trapping experiments of reactive species. α-Fe2O3/MoS2/Bi2S3-modified electrodes exhibited greatly enhanced photocurrent under visible light due to the double Z-scheme charge transfer process, which met the requirement of the PEC sensor for detecting larger targets. After the aptamer was conjugated on the photoelectrode through chitosan (CS) and glutaraldehyde (GA), when MCF-7 cells were presented and captured, the photocurrent of the PEC biosensing system decreased due to steric hindrance. The current intensity had a linear relationship with the logarithm of MCF-7 cell concentration ranging from 10 to 1×105 cells mL−1, with a low detection limit of 3 cell mL−1 (S/N = 3). The dual Z-scheme α-Fe2O3/MoS2/Bi2S3 ternary heterojunction-modified PEC aptasensor exhibited high sensitivity and excellent specificity and stability. Additionally, MCF-7 cells in human serum were determined by this PEC aptasensor, exhibiting great potential as a promising tool for clinical detection.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2024
·
IF 8.1
Jingjing Wang,Ruonan Liu,Yuxin Qiao,Shuxin Liu,Chuanguang Qin
In this work, flower-like Bi 2 S 3 was prepared by hydrothermal method using different solvents, and materials with better performance were selected. Graphene quantum dots (GQD, which is rich in specific amino groups) was prepared by aqueous phase fusion technology. Ultimately, a straightforward one-step hydrothermal process was used to successfully manufacture composite materials in order to build GQD(4)/Bi 2 S 3 heterostructures. The study results have shown that the H 2 production efficiency of 2% GQD(4)/Bi 2 S 3 is the best, and its photocatalytic hydrogen production efficiency within 3 h is 5.92 times that of GQD(4) and 3.03 times that of Bi 2 S 3 . The H 2 O 2 production and tetracycline (TC) degradation efficiency of 2% GQD(4)/Bi 2 S 3 are the best, while the methylene blue (MB) degradation efficiency of 1% GQD(4)/Bi 2 S 3 is relatively better. The research results show that as a perfect combination of GQD(4)/Bi 2 S 3 heterostructures, it offers a productive plan for eliminating organic pollutants in water and producing clean oxidant and hydrogen energy.
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高影响因子
Molecular Catalysis
·
2025
·
IF 4.9
Meng Lan,Xiaoli Dong,Nan Zheng,Yujun Liu
The continuous increase of heavy metal pollution has seriously affected the ecological environment and human health, and photocatalysis technology is considered to be one of the most effective and environmentally friendly treatment methods. Herein, BiOI/Bi 2 S 3 Z-scheme heterostructure photocatalyst with abundant oxygen vacancies was fabricated and applied for the removal of hexavalent chromium (Cr(VI)). The tightly contact interface of in situ heterostructure and abundant oxygen vacancies can accelerate charge transport and improve the photogenerated carrier separation efficiency. The unique charge transmission path of the Z-scheme heterostructure endows the material with superior redox ability. BiOI/Bi 2 S 3 with optimized ratio can achieve effective reduction of Cr(VI) with the efficiency of 95.6 % under 10 min visible light illumination This work offers a promising photocatalyst for promoting the disposal of chromium-containing wastewater.
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危险品化学品经营许可证（带存储）