Journal of Materials Chemistry C
·
2021
·Vol. 10
·期 5
·1718-1726
·
IF 7.393
Zhenyu Hu,Longhui Deng,Tingjun Wu,Jing Wang,Feiyan Wu,Lie Chen,Qikai Li,Weishu Liu,Shui-Yang Lien,Peng Gao
The preparation of high-performance thermoelectric thin films can be challenging. Herein, we report the preparation, characterization, and thermoelectric performance of morphology-controlled bismuth sulfide (Bi2S3) thin films using a single-source precursor, namely bismuth(III) ethylxanthate. Using this precursor, room-temperature thermoelectric thin-films could be prepared quickly and cost-effectively. We acquired the intrinsic Bi2S3 thin films with electrical conductivity of 14.23 S cm−1 and Seebeck coefficient of −388.33 μV K−1 at room temperature, which are comparable to that of the bulk Bi2S3. Furthermore, a higher Seebeck coefficient could be achieved by adopting a composition engineering method to achieve an antimony (Sb)-doping solid solution, in which the phonon scattering and dislocation density could be manipulated. By tuning the mole fraction of Sb in the films, we further improved the Seebeck coefficient to −516.35 μV K−1 and the power factor to 170.10 μW m−1 K−2 with a solid solution of (Bi0.97Sb0.03)2S3. Thus, the chalcogenide composition engineering protocol can be a universal methodology to fabricate target semiconductors for thin-film thermoelectric applications, which may broaden the application of thermoelectric films in the field of microelectronic devices.
研究领域:
材料科学
·
热电技术
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DOI
高影响因子
SENSORS
·
2025
·Vol. 25
·期 4
·1122
·
IF 3.5
Chong Li,Sami Ramadan,Hao Kan,Lina Wang
The expansion of the Internet of Things (IoT) has rendered wireless passive, highly stable, and room-temperature gas sensors indispensable for sensor applications. In this work, a room-temperature surface acoustic wave (SAW) H 2 S sensor based on a thin film of nano-mesh woven with Bi 2 S 3 nanoribbons was successfully designed and prepared. The impact of varying inorganic salts solution ligand substitution of long-chain organic ligands of Bi 2 S 3 films on performance was assessed. Notably, the responses of the sensors following ligand substitution exhibited improvement to varying degrees. In particular, the Cu(NO 3 ) 2 -treated sensor to 10 ppm H 2 S was 203% of that of the untreated sensor. Furthermore, the impact of visible light activation on sensor performance was assessed. The results show the sensor has a high sensitivity to H 2 S molecules under yellow light activation at room temperature, with excellent selectivity, fast response speed and low detection limit. The sensor exhibited a response to 10 ppm H 2 S under yellow light activation that was approximately equal ~ two times greater than the response observed in a dark environment. This work provides a novel approach to enhance the performance of room-temperature SAW H 2 S sensors.
研究领域:
材料科学
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传感器与仪器
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纳米技术
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物联网（IoT）
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气体传感
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DOI
PubMed
高影响因子
MATERIALS RESEARCH BULLETIN
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2019
·
IF 3.355
Li Guo,Qiang Zhao,Chan Wang,Huidong Shen,Xuanxu an Han,Kailai Zhang,Danjun Wang,Feng Fu
Novel core-shell structural magnetic Fe3O4@SiO2/Bi2WO6 (F-BWO) was obtained by a multistep process. Bi2S3 Quantum Dots (QDs) with the size of about 5 nm were deposited on the surface of Bi2WO6 “shell” to obtain Fe3O4@SiO2/Bi2WO6/Bi2S3 (F-BWO-BS) heterostructures. The experimental results indicated that F-BWO-BS exhibits the enhanced fuel oil photocatalytic-oxidative-desulfurization (Photo-Cat-ODS) and RhB photocatalytic degradation activity than that of F-BWO. The as-prepared F-BWO-BS-2 exhibited the best activity, the rate constant ( k app /min −1 ) for RhB photocatalytic degradation is approximately 1.5 times higher than that of F-BWO. Furthermore, the F-BWO-BS-2 exhibited the best Photo-Cat-ODS activity, the desulfurization rate could reach 100% after illumination for 1.5 h. The enhanced photocatalytic activity of F-BWO-BS can be attributed to the synergistic effect of magnetic Fe 3 O 4 @SiO 2 support − “core”, Bi 2 WO 6 − “shell” and Bi 2 S 3 QDs. The experimental result also revealed that magnetic F-BWO-BS photocatalyst is easily magnetically separated with good stability and recyclability.
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高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
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2016
·Vol. 20
·期 12
·3315-3322
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IF 2.327
Sheng Qinglin,Shen Yu,Wu Qian,Zheng Jianbin
The direct electrochemistry and electrocatalysis of cytochrome c (Cyt c ) based on dandelion-like bismuth sulfide ( d -Bi 2 S 3 ) nanoflowers have been developed. The morphologies and composition of the d -Bi 2 S 3 were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy (EDS). Then, the electrochemical behaviors of Cyt c immobilized within the d-Bi 2 S 3 /chitosan film and its electrocatalytic ability toward hydrogen peroxide (H 2 O 2 ) reduction were investigated by cyclic voltammetry. The electron transfer rate constant was estimated to be 13.1 s −1 , suggesting that a fast direct electron transfer was realized. The prepared Cyt c / d -Bi 2 S 3 /chitosan nanobiocomposite-modified electrode possessed excellent electrocatalytic ability toward H 2 O 2 reduction that showed linearity in the range from 0.5 μM to 1.56 mM with a correlation coefficient of 0.9993. The detection limit was 0.2 μM on signal-to-noise ratio of 3. In addition, the d -Bi 2 S 3 nanoflowers may be also applied to direct electron transfer of other redox proteins.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
·
IF 9.2
Shuang Ma,Haozhe Shen,Shukui Shi,Peiying Yang,Guoxu He,Heng Zhang,Aidi Xie,Haopeng Jiang
Simultaneously harnessing photogenerated electrons for water splitting (to produce H 2 ) and holes for benzyl alcohol oxidation (to synthesize high-value chemicals) offers a promising strategy to address the energy crisis. However, charge rapid carrier recombination and weak H 2 O adsorption capacity severely limit the efficiency of this approach. Herein, we employ electrostatic self-assembly to construct a CdS/Bi 2 S 3 composite photocatalyst featuring an S-scheme electron migration pathway and a robust built-in electric field (BEF). This work demonstrates that the strong BEF of the CdS/Bi 2 S 3 composite photocatalyst significantly enhances the chemisorption capacity of H 2 O molecules and the carrier separation efficiency. The optimal CdS/Bi 2 S 3 -3 composite achieves H 2 and benzaldehyde production rates of 17.9 and 16.1 mmol g −1 h −1 , respectively. Comprehensive characterization and theoretical calculations elucidate the mechanisms underlying the S-scheme electron transfer pathway and the formation of the BEF. This study offers a new perspective for designing photocatalytic systems that simultaneously utilizing photogenerated electrons and holes.
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产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2023
·
IF 6.2
Qin Lei,Jiaxin Li,Junjie Lei,Bo Hong,Xiaoling Li,He Li,Yiwen Wan
In this study, a simple wet chemical method was used to prepare p-n heterojunction photoelectric composites (Bi 2 S 3 @g-C 3 N 4 ). The p-n junctions were formed to facilitate charge transfer as well as strongly suppress electron-hole pair recombination, thus enhancing the photoelectrochemical (PEC) characteristics. Particularly, according to the transient surface photocurrent response, the photocurrent intensity of the prepared composites was 2.98 times higher relative to the pristine g-C 3 N 4 material. The photocurrent signal revealed the prepared novel PEC sensor composed of Bi 2 S 3 @g-C 3 N 4 composite material, which can be used for sensitively and selectively detecting chlorpyrifos. This method presented a linear change from 50 ng/mL to 0.1 mg/mL of chlorpyrifos under the optimal conditions. The linear regression equation was I(μA)=0.8546-0.1558lgC(mg/mL) (R 2 =0.9758) and the detection limit was 0.03 ng/mL (S/N=3). In addition, the novel sensing platform with high selectivity could assist in rapidly and effectively detecting chlorpyrifos in environmental analysis.
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高影响因子
Surfaces and Interfaces
·
2022
·
IF 6.137
Dongjing Liu,Lingtao Yang,Jiang Wu,Bin Li
Zeolite ZSM-5, as a crystalline microporous material , has attracted widespread interest in diverse research areas because of its big specific surface area, high thermal stability, and shape selectivity . Here, x Bi 2 S 3 /ZSM-5 compounds is easily synthesized using a molten salt method and employed to capture elemental mercury in the temperature range of 60–260°C. Pristine ZSM-5 displays a weak Hg 0 adsorption capability. Bi 2 S 3 decoration can greatly reinforce the mercury adsorption capability of ZSM-5 due to addition of active sulfide species. 20Bi 2 S 3 /ZSM-5 with 20 wt% Bi 2 S 3 loading value performs optimally toward Hg° capture associated with a mercury removing efficiency of 90.8–96.5% within 100–140°C. In addition, 20Bi 2 S 3 /ZSM-5 is nearly impervious to NO and SO 2 with respect to mercury removal. One-dimensional nanorod structure of Bi 2 S 3 and big specific surface area of ZSM-5 probably account for the superior mercury capture performance of x Bi 2 S 3 /ZSM-5 compounds.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2019
·
IF 6.393
Jinling Zhang,Mengxiang Shang,Yao Gao,Jianyue Yan,Wenbo Song
High visible-light active materials with boosted photoelectric conversion efficiency are the key to fabricate high-performance photoelectrochemical (PEC) sensor. Herein, we report in-situ formation of VS 2 QDs-Bi 2 S 3 heterostructure for promising application in constructing PEC aptasensor. Dramatically enhanced photoelectric conversion capacity is verified by photoluminescence spectroscopy (PL), electrochemical impedance spectroscopy (EIS) and PEC measurements. The intrinsic metallic feature of VS 2 , efficient visible light absorption of Bi 2 S 3 nanotube, and well-aliened band structure between them are responsible to substantially enhanced photocurrent. By covalently linking 5′-NH 2 -terminated lysozyme (Lys) aptamer on the VS 2 QDs-Bi 2 S 3 heterostructure, a self-powered PEC aptasensor for Lys is constructed. Under optimal conditions, ultrasensitive and selective detection of Lys is established in a wide linear range of 3.5 pM-70 nM with good selectivity and stability. The detection limit is 1.1 pM. Trace monitoring Lys in biological systems is realized with desired accuracy and satisfactory recovery. This work illustrates the prospect of VS 2 QDs-based heterostructure for PEC sensing and possible photocatalytic applications.
研究领域:
生物传感
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材料科学
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分析化学
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DOI
高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
·
2015
·Vol. 13
·期 1
·1-10
·
IF 4.115
Chen Jun,Yang Xiao-Quan,Qin Meng-Yao,Zhang Xiao-Shuai,Xuan Yang,Zhao Yuan-Di
Background X-ray computed tomography (CT) imaging can be used to reveal the three-dimensional structure of deep tissue with high spatial resolution. However, it cannot reveal molecular or cellular changes, and has great limitations in terms of specificity and sensitivity. Fluorescence imaging technology is one of the main methods used for the study of molecular events in vivo and has important applications in life science research. Therefore, the combination of CT and fluorescence imaging is an ideal dual-modal molecular imaging method, which can provide data on both molecular function and tissue structure, and has important research value. In a previous study, Bi2S3 nanoparticles were wrapped with quantum dots in SiO2 to generate CT and fluorescence imaging. However, this type of probe led to low survival and caused innegligible in vivo toxicity in mice. Therefore, it is necessary to develop new multifunctional probes that demonstrate biocompatibility and safety in vivo.Methods A polyethylene glycol-phospholipid bilayer structure was used to synthesize hybrid clusters containing hydrophobic Bi2S3 nanoparticles and quantum dots for combined CT/fluorescence imaging. Mean particle size, polydispersity index, and zeta potential were used to study the stability over an 8-week test period. In vivo CT and fluorescence imaging experiments were performed, and the in vivo safety of the probe was evaluated, using histopathological, biochemical, and blood analyses.Results The probe distinctly enhanced the CT contrast and had fluorescence imaging capability. In addition, the nanocomposite hybrid clusters showed a longer circulation time (>4 h) than iobitridol. The results also showed that the Bi2S3-QD@DSPE probe had good biocompatibility and safety, and did not affect normal organ functioning.Conclusion sBi2S3-QD@DSPE hybrid clusters exhibited remarkable performance in CT angiography and fluorescence imaging in vivo.
研究领域:
医学影像学
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纳米医学
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分子生物学
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DOI
PubMed
高影响因子
RSC Advances
·
2025
·Vol. 15
·期 50
·42432-42442
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IF 4.6
Baowang Miao,Guidong Zhu,Shimin Lin,Chi Zhang,Yuze Wang,Dongxun Chen,Yanjie Liang,Chengwei Wang
Photothermal therapy (PTT) is limited by its shallow penetration depth, whereas high-dose radiotherapy (RT) can cause significant side-effects. To address these limitations, synergistic therapies integrating RT with PTT have been proposed and investigated as promising treatment strategies. In this study, multifunctional, magnetic-targeting nanoparticles that exhibit high near-infrared absorption and strong photon attenuation were successfully synthesized for the synergistic PTT-RT treatment of glioma. The platform consists of a Bi2S3 core encapsulated within a carbon shell. The nanoparticles were further doped with Fe3O4 to ensure arrival at the tumor site at an effective concentration to achieve optimal therapeutic outcomes, and to enable preferential aggregation at the intracranial tumor site under the guidance of an external magnetic field. The Bi2S3@C/Fe3O4 nanoparticles showed high biosafety and a significant synergistic therapeutic effect in combined RT and PTT, both in vitro and in vivo. The feasibility of Bi2S3@C/Fe3O4 nanoparticles for glioma treatment was systematically evaluated, providing evidence of the applicability of Bi-based nanomaterials in photothermal radiotherapy.
研究领域:
纳米医学
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肿瘤学
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放射治疗
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光热治疗
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
Biomaterials Advances
·
2025
·
IF 6
Qiupeng Zhang,Danrui Xiao,Conghao Liu,Jie Tu,Yanglei Song,Yuqin Jiang,Huihui Wang,Weixian Xue,Min Zhang,Shuang Zhou,Yuqing Miao,Ruizhuo Ouyang,Jianbo Liu
Phototherapy has emerged as a promising approach for cancer treatment, yet challenges like glutathione (GSH) over-expression and hypoxia within tumors hinder its efficacy. Here, we developed a bismuth-based semiconductor nanotherapy agent, Bi₂S₃ nanorod, stabilized by polyvinylpyrrolidone (PVP). Compared with commercial Bi₂S₃, the Bi₂S₃ nanorods our synthesized exhibited a narrower bandgap, leading to improved electron-hole separation efficiency under near-infrared (NIR) light excitation. Bi₂S₃ nanorods exhibit a high photothermal conversion efficiency of 36.8 %, allowing it to convert light into heat effectively. This thermal effect enhances blood circulation at tumor sites, thereby alleviating hypoxia. Under NIR laser (730 nm) irradiation, Bi₂S₃ nanorods generates elevated levels of cytotoxic reactive oxygen species (ROS) and depletes GSH, increasing oxidative stress and amplifying ROS toxicity, which leads to tumor cell apoptosis. Both in vitro and in vivo experiments demonstrate Bi₂S₃ nanorods' efficacy in synergistic photothermal-photodynamic therapy, suggesting high potential for malignant tumor treatment. This study provides a strategy for enhanced phototherapy and a promising direction for designing integrated nanoplatforms in cancer therapy.
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产品关联
DOI
PubMed
高影响因子
Nanoscale
·
2020
·Vol. 12
·期 48
·24394-24402
·
IF 6.895
Yuhan Liu,Malin Li,Yingying Zheng,Hezhe Lin,Ziyang Wang,Wen Xin,Chunzhong Wang,Fei Du
Potassium-ion batteries (PIBs) are considered a promising alternative to lithium-ion batteries (LIBs) for next-generation energy storage due to the abundance and competitive cost of potassium resources. However, the excavation and the development of proper electrodes for PIBs are still confronted with great challenges. Herein, a self-assembled bismuth sulfide microsphere wrapped with reduced graphene oxide was fabricated to form a heterostructured Bi2S3@RGO composite via a visible-light-assisted method and served as the anode for PIBs. The as-prepared Bi2S3@RGO composite presented a high reversible specific capacity of 538 mA h g−1 at 0.2 A g−1 and superior rate capability of 237 mA h g−1 at a high current density of 2 A g−1 after 300 cycles. In particular, the high capacity could be ascribed to the synergistic effect of the conversion and alloying reactions during the electrochemical processes, which was validated by ex situ X-ray diffraction. The fabrication of a unique heterostructure combining the self-assembled Bi2S3 microspheres and flexible RGO boosted the facile charge transfer, leading to the enhanced cyclic stability and rate performance.
研究领域:
材料科学
·
能源存储技术
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DOI
高影响因子
危险品化学品经营许可证（带存储）