Journal of Energy Storage
·
2025
·
IF 9.8
Qianshi Wang,Chao Gu,Gang Liu,Xinmei Liu,Limin Dong,Yuhan Li,Mingyang Wu
In this study, we presented a mild hydrothermal method for preparing Bi 2 S 3 nanorods with varying bismuth-to‑sulfur ratios and systematically investigated the influence of these different ratios on its supercapacitor's performance. We adjusted the sulfur vacancy concentration in Bi 2 S 3 by different bismuth to sulfur ratios and found that the concentration of sulfur vacancy in Bi 2 S 3 reached a maximum at the bismuth to sulfur ratio of 1:12. At a Bi:S molar ratio of 1:12, the synthesized Bi 2 S 3 –3 demonstrated a high discharge capacity of 233.1C g −1 under 1 A g −1 current density. Notability, Bi 2 S 3 –3 maintains 67.4 % capacity retention after 10,000 cycles at 10 A g −1 , demonstrating exceptional cycling stability. When configured in a hybrid supercapacitor (Bi 2 S 3 –3//AC), the device achieves energy densities and power densities of 23.78 Wh kg −1 and 798.58 W kg −1 , respectively, showcasing its practical energy storage capabilities. Even at a current density of 10 A g −1 , the system maintained a capacity retention rate of 87.5 % and a coulomb efficiency of 99.1 % after 10,000 cycles of charge and discharge. The improved performance of the supercapacitor can be attributed to the introduction of more sulfur vacancies, which increases the number of active sites within the Bi 2 S 3 framework, significantly improves the charge transfer dynamics, and promotes the charge transfer between Bi 2 S 3 and electrolyte. This work provides new insights into improving the performance of supercapacitors through defect engineering modification of transition metal sulfides.
研究领域:
材料科学
·
电化学
·
纳米材料
·
能源存储
·
无机功能材料
·
电化学储能
✓ 已验证
产品关联
DOI
高影响因子
NPG Asia Materials
·
2016
·Vol. 8
·期 4
·e263
·
IF 8.772
Long Lu-Lu,Chen Jie-Jie,Zhang Xing,Zhang Ai-Yong,Huang Yu-Xi,Rong Qing,Yu Han-Qing
Metal sulfide semiconductors, such as molybdenum disulfide (MoS 2 ) and bismuth trisulphide (Bi 2 S 3 ), are of considerable interest for their excellent applications in photocatalysis and in many other fields. However, the controllable synthesis of MoS 2 /Bi 2 S 3 hybrid nanostructures remains a challenge. In this study, we report a unique sacrificial templating strategy for preparing layer-controlled MoS 2 on three-dimensional (3D) Bi 2 S 3 micro-flowers. For this approach, Bi 2 S 3 was utilized as a sacrificial template to regulate the ion exchange, and the dosage of molybdenum was adjusted to tune the dynamic formation, thus converting the MoS 2 nanosheets on the Bi 2 S 3 micro-flowers from monolayer to multilayer. Such a 3D flower-like hybrid nanostructure enables MoS 2 /Bi 2 S 3 to exhibit adsorption-promoted photocatalysis under visible light irradiation, especially for the excellent photodegradation of low-concentration organic pollutants, for example, azo dye and atrazine. The observed superiority of the 3D MoS 2 /Bi 2 S 3 was mainly attributed to the increased mass transfer, robust light-harvesting capacity, improved charge separation, lower oxygen-activation barrier and enhanced active oxygen yield. Our findings are of interest for the development of novel S-based photocatalysts and provide a new opportunity to efficiently remove low-concentration refractory pollutants.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 46
·39810-39817
·
IF 3.289
Yifan Jiang,Juncheng Hu,Jinlin Li
Tin-doped Bi2S3 (TDB) microspheres assembled by nanosheets with different Sn contents were synthesized via a simple one step solvothermal method. These photocatalysts were characterized by XRD, SEM, TEM, BET, XPS and DRS. The results showed that the TDBs with a portion of Sn4+ substitution at Bi3+ sites in Bi2S3 lattice were consist of nanosheets, Sn dopant can increase the specific surface area and range of light response. What's more, the possible formation mechanism of the unique structure was discussed. It exhibits that the introduction of Sn can improve the photocatalytic activity, and 3 mol% is the optimal content of doped Sn for the degradation of RhB under visible light (λ > 420 nm) irradiation. Compared to the un-doped Bi2S3, the enhanced photocatalytic activities of the TDBs might be attributed to the photo-generated electrons and holes recombination were prevented by doping Sn. The EIS measurements further confirmed the better photogenerated charge carrier separation and transport efficiency of TDBs samples. Moreover, the possible mechanism of photocatalysis process and the possible active species were investigated in detail. This photocatalyst also showed good reusability during the recycled experiments.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
ACS Omega
·
2024
·
IF 3.7
Wanda Kang,Sen Li,Xingchen Liu,Kun Yan,Wengao Zhang,Youkang Fan,Yuxiang Pan,Jun Feng
Bi2S3 holds immense potential to be promoted as an anode material for lithium-ion batteries (LIBs), owing to the high theoretical gravimetric and volumetric capacities. However, the poor electrical conductivity and volume expansion during cycling hinder the practical applications of Bi2S3. Therefore, through subsequent heat treatment, the nitrogen-doped carbon film was successfully loaded on the nanosphere Bi2S3, which we call nitrogen-rich carbon layer-coated Bi2S3 (NC@Bi2S3). Hence, the nanosphere Bi2S3 uniformly covered by a nitrogen-rich carbon layer was successfully coated on the Bi2S3 surface (NC@Bi2S3) through post-treatment. Due to the effective interaction between glutathione and inorganic materials, dopamine hydrochloride molecules are introduced and polymerized on the surface of the spherical Bi2S3 structure and then converted into a nitrogen-rich carbon layer with an average thickness of 10.0 nm. The electrochemical tests reveal that the discharge specific capacities of Bi2S3 and NC@Bi2S3 reach 340.99 and 645.13 mAh/g after 300 cycles at 100 mA/g, respectively. Kinetic analysis shows that the contribution of pseudocapacitance behavior increases by about 10% after the nitrogen-rich carbon layer is coated. These results suggest the potential of NC@Bi2S3 as a high-performance anode material for LIBs; the stability can be enhanced by core–shell structures.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
·
2020
·
IF 0.936
Xiao-Xue SHI,Xiu-Qi LI,Xiao-Ping WEI,Jian-Ping LI
A molecularly imprinted photoelectrochemical sensor based on AgBiS 2 /Bi 2 S 3 was developed for detection of insecticide propoxur. AgBiS 2 /Bi 2 S 3 composites were synthesized on Ti substrate by solvothermal method. By using propoxur as a template molecule and o -phenylenediamine as a functional monomer, a molecularly imprinted polymer film was formed by electropolymerization on AgBiS 2 /Bi 2 S 3 composite material-modified Ti electrode for specific recognition of propoxur. The specific binding of propoxur with the imprinted cavity hindered the electron donor from passing through the cavity to the surface of the electrode, resulting in a decrease in photocurrent, and then propoxur was detected. The logarithm of the concentration of propoxur was linear with the photocurrent in the range of 1.0 × 10 −12 −5.0 × 10 −10 mol/L, and the detection limit was 2.3 × 10 −13 mol/L. The sensor was used for detection of propoxur residues in actual sample such as fruits, and the recoveries of the spiked standard were 101.0%–;103.1%.
研究领域:
分析化学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2016
·
IF 3.014
Jian Rong,Tao Zhang,Fengxian Qiu,Xinshang Rong,Xiaolu Zhu,Xiaoying Zhang
Novel hierarchical micro/nanostructured photocatalysts composed of WO 3 microspheres and needle-like Bi 2 S 3 nanocrystals were successfully synthesized by a simple combination of hydrothermal and post-calcination method. The as-obtained Bi 2 S 3 -WO 3 composites was applied for photocatalytic removal of Rhedamine B (RhB) organic pollution in water under visible light irradiation. The morphology and structure of the as-obtained samples were characterized by XRD , SEM, TEM , N 2 adsorption–desorption techniques, UV–vis DRS, XPS and PL spectra. It was found that 70%-Bi 2 S 3 -WO 3 has the highest photocatalytic activity and more than 90% (over 3 times than pure WO 3 ) of the RhB solution were degraded in 100 min. The degradation kinetics data were found to be consistent with the Langmuir-Hinshelwood (L-H) kinetics model. Furthermore, the kinetic rate of 70%-Bi 2 S 3 -WO 3 composites is 9 times more than the pure WO 3 . The modification of WO 3 by deposited Bi 2 S 3 could improve charge separation and transfer with the increase of special surface area and higher utilization of visible light. These favorable factors lead to significantly enhanced visible photocatalytic performance; and Bi 2 S 3 -WO 3 composites had an excellent stability in cycling experiments. At last, a tentative mechanism of enhanced photocatalytic activity for Bi 2 S 3 -WO 3 composite was discussed according to the calculation of the energy band position.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2014
·
IF 6.451
Xiaoqian Chen,Qingxiang Wang,Liheng Wang,Feng Gao,Wei Wang,Zhengshui Hu
A broccoli-like bismuth sulfide (bBi 2 S 3 ) was synthesized via a solvothermal method using a self-made imidazoline derivative of 2-undecyl-1-dithioureido-ethyl-imidazoline as the soft template. The morphology and chemical constitution of the product were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM) and X-ray diffraction (XRD). Electrochemical characterization experiments show that the bBi 2 S 3 has the higher specific surface area and standard heterogeneous electron transfer rate constant than the rod-like Bi 2 S 3 (rBi 2 S 3 ). Hemoglobin (Hb) was then chosen as a protein model to investigate the electrocatalytic property of the synthesized bBi 2 S 3 . The results show that Hb entrapped in the composite film of chitosan and bBi 2 S 3 displays an excellent direct electrochemistry , and retains its biocatalytic activity toward the electro-reduction of hydrogen peroxide. The current response in the amperometry shows a linear response to H 2 O 2 concentrations in the range from 0.4 to 4.8 µM with high sensitivity (444 µA mM −1 ) and low detection limit (0.096 µM). The Michaelis–Menten constant ( K M app ) of the fabricated bioelectrode for H 2 O 2 was determined as low as 1 µM. These results demonstrate that the synthesized bBi 2 S 3 offers a new path for the immobilization of redox-active protein and the construction of the third-generation biosensors.
研究领域:
材料科学
·
生物化学
✓ 已验证
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2020
·
IF 7.1
Jiajia Xi,Hao Wang,Bihong Zhang,Faqiong Zhao,Baizhao Zeng
A molecularly imprinted polymer/Bi 2 S 3 /ZnIn 2 S 4 /ITO sensor was fabricated and used for the photoelectrochemical detection of rutin. The Bi 2 S 3 /ZnIn 2 S 4 composite was synthesized by solvothermal method and it displayed good photoelectrochemical property because of the matched energy levels of Bi 2 S 3 and ZnIn 2 S 4 . In addition, ZnIn 2 S 4 could improve the stability of the composite and avoid photocorrosion. The photocurrent signal of the Bi 2 S 3 /ZnIn 2 S 4 composite was much larger than that of Bi 2 S 3 and ZnIn 2 S 4 under visible-light irradiation. Moreover, rutin imprinted chitosan was prepared by mixing rutin and chitosan solutions, followed by simple cross-linking reaction with glutaraldehyde at room temperature. The molecularly imprinted material was combined with Bi 2 S 3 /ZnIn 2 S 4 /ITO to construct photoelectrochemical sensor, and the resulting sensor showed a low detection limit (i.e. 0.003 μM) and a wide detection range (i.e. 0.01–100.0 μM) for rutin. It also displayed high stability and selectivity. The sensor could be used for the detection of rutin in real samples.
研究领域:
分析化学
·
材料科学
·
药物分析
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2021
·
IF 3.498
Long-Gui Peng,Hui Wang,Jun Liu,Meng Sun,Fu-Rong Ni,Meng-Jie Chang,Hui-Ling Du,Jie Yang
A novel fibrous BiVO 4 /Bi 2 S 3 /MoS 2 heterojunction is facilely constructed by simple electrospinning and hydrothermal processes. Bi 2 S 3 was formed concurrently along with the hydrothermal synthesis of MoS 2 on to the porous structure of BiVO 4 fibers. The BiVO 4 /Bi 2 S 3 /MoS 2 (BBM) heterojunction is organized with MoS 2 nanosheets of several layers in thickness encapsulating both on the Bi 2 S 3 nanorod around 40 nm in diameter and fibrous BiVO 4 template. The BiVO 4 /Bi 2 S 3 /MoS 2 heterojunction shows significant enhancement of visible light absorption in the region of 500–800 nm and photocurrent of 3 times higher than that of pure BiVO 4 . By adjusting the precursor concentration of MoS 2 , the optimized BBM-2 sample presents 4.9 and 9.5 times higher of the photodegradation efficiency and apparent reaction rate constant respectively, than that of pure BiVO 4 fibers after 120 min under visible light irradiation . The present work will provide a new strategy to the design of Bi-contained nanofibrous heterojunctions with high photocatalytic activity for the applications in energy storage and conversion.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2020
·
IF 9.038
Zeqing Long,Guangming Zhang,Hongbiao Du,Jia Zhu,Jinwei Li
Recently, the photocatalytic reduction of Cr(VI) has been extensively studied. Herein, we successfully prepared the BiOBr-Bi 2 S 3 heterojunctions with high photocatalytic Cr(VI) reduction performance using an ion exchange method. The optimal BiOBr-Bi 2 S 3 heterojunction (prepared with BiOBr, pH of 6.0, 2 mmol Na 2 S 2 O 3 ·5H 2 O,) achieved 100% removal of Cr(VI) within 12 min. The performance of photo-reduced Cr(VI) was about 28.9 and 184.6 times higher than that of pure Bi 2 S 3 and BiOBr, respectively. Besides, BiOBr-Bi 2 S 3 heterojunctions had a good adsorption efficiency for Cr(III), suggesting that they could be applied as bifunctional photocatalyst. The formation process and photoelectric properties of the BiOBr-Bi 2 S 3 heterojunctions were revealed by a series of characterizations. In conclusion, this work reported the synergistic effect of adsorption and photocatalysis of the BiOBr-Bi 2 S 3 heterojunctions for Cr removal for the first time, suggesting that the BiOBr-Bi 2 S 3 heterojunctions could act as a novel photocatalytic adsorbent to treat the Cr(VI)-containing wastewater.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Physical Chemistry C
·
2018
·
IF 4.484
Guodong Yu,Aili Liu,Huile Jin,Yangzong Chen,Dewu Yin,Rui Huo,Shun Wang,Jichang Wang
Urchin-shaped Bi2S3/Cu2S/Cu3BiS3 nanocomposites were successfully prepared in this study through one-pot synthesis, which involved microwave-assisted simultaneous pyrolysis of two precursors. The as-prepared Bi2S3/Cu2S/Cu3BiS3 hybrids exhibit stronger absorption in the near-infrared regime than the individual components, i.e., Bi2S3, Cu2S, and Cu3BiS3. The photothermal conversion efficiency (η) of Bi2S3/Cu2S/Cu3BiS3 composites can even reach 43.8%, which is significantly higher than that seen with most of the transition metal chalcogenide materials. The excellent photothermal performance of Bi2S3/Cu2S/Cu3BiS3 hybrids is likely arising from its unique urchin-like structure, in which needle-like Bi2S3/Cu2S nanocomposites grow from the core of Cu3BiS3. The copresence of Bi2S3 and Cu2S also leads this newly synthesized composite to produce high contrast for X-ray computer tomography imaging, an important property required for a great potential application in theranostic cancer treatment.
研究领域:
材料科学
·
医学影像
·
肿瘤学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2023
·
IF 5.9
Fangwei Qi,Xiaosong Chen,Huixing Li,Gang Chen,Xinrui Luo,Shiyu Xiong,Shuping Peng,Cijun Shuai
Bismuth sulfide (Bi2S3) enabled us to transform light signals into electrical signals via the photoelectric effect, which exhibited tremendous prospects on constructing wireless electrical stimulation for accelerating nerve regeneration. However, too rapid recombination of photogenerated electron–hole pairs weakened its photocurrent. Herein, the Bi2S3/Ti3C2Tx heterojunction was synthesized by in situ growth of Bi2S3 nanoparticles on Ti3C2Tx nanosheets and then mixed with poly-l-lactic acid (PLLA) powder to fabricate the Bi2S3/Ti3C2Tx-PLLA conduit. At the heterojunction interfaces, Ti3C2Tx with a more positive Fermi energy level could form interfacial potential difference with Bi2S3 to promote electron–hole pair separation. Meanwhile, Ti3C2Tx with excellent conductivity could provide channels for photogenerated electron transmission, thus facilitating the generation of the photocurrent. Photoluminescence and electrochemical impedance spectroscopy analysis indicated that electron–hole pair separation and electron transfer were enhanced. As a consequence, under near-infrared light radiation, the output photocurrent of Bi2S3/Ti3C2Tx-PLLA was increased from 0.48 to 1.43 μA compared to that of Bi2S3-PLLA. The enhanced photocurrent effectively promoted the differentiation of rat pheochromocytoma (PC12) into functional neurons by upregulating extracellular Ca2+ influx. Therefore, the above results demonstrated that this work provided a new perspective for wireless electrical stimulated nerve regeneration.
研究领域:
材料科学
·
神经生物学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）