Journal of Physical Chemistry C
·
2021
·
IF 4.126
Chenguang Duan,Zongyu Huang,Hui Qiao,Qian Ma,Yang Zhou,Jianjin Teng,Xiang Qi
Metal phosphorus trichalcogenides, as a novel class of two-dimensional (2D) materials, attracted a lot of attention due to its antiferromagnetic ordering, excellent catalytic activity, and intrinsic electrical and optical properties. Herein, the FePS3 nanosheets exfoliated from the bulk counterpart by the sonication assisted liquid-phase exfoliation were applied in the photoelectrochemical-type (PEC) photodetector. The FePS3-based photoelectrode displays a short response time (rising time of 256 ms and decay time of 279 ms), large photocurrent density (3.2 μA cm–2), responsivity (31.94 μA cm–2 W–1), excellent long-term stability (more than 1000 s), and wide band detection (365–730 nm). Benefiting from the unique 2D structure of the FePS3 nanosheets and the flexibility of the PET substrate, the fabricated photoelectrode can maintain an outstanding photodetection performance after 500 cycles of bending and twisting. Furthermore, the PEC photodetector with a flexible sandwich structure was fabricated to make it more portable. This work promotes the application of 2D FePS3 nanosheets in optoelectronics and is of great significance to the practical application of the PEC device.
研究领域:
材料科学
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光学
·
电子工程
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DOI
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Xinrui Li,Deqi Fan,Chengxiao Zhao,Xiaofei Yang
Transition metal phosphorus trisulfides, namely sulfides composed of three elements, stand out within 2D nanomaterials due to the unique layered structure, distinctive bonding, and electronic configurations. However, the preparation of ultrathin nanosheets encounters significant challenges due to the inherent properties of the material itself and the complexity of the synthetic process. In this work, we successfully fabricated ultrathin FePS 3 nanoflakes with lateral dimensions of 500–800 nm and an average thickness of 5 nm utilizing mechanically assisted liquid-phase exfoliation in N-Methyl-2-pyrrolidone solution. The unique few-layer structure of FePS 3 may increase the number of active sites, facilitating the rapid separation and migration of photo-induced charge carriers. Consequently, this enhancement leads to an increase in photogenerated current and a substantial reduction in resistance. This study presents an effective approach for optimizing light absorption and charge separation processes of 2D nanostructure , thereby providing valuable insights for the rational design of efficient photocatalysts based on ultrathin FePS 3 nanosheet as a co-catalyst.
研究领域:
材料科学
·
化学
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产品关联
DOI
高影响因子
Small
·
2022
·Vol. 19
·期 8
·2204992
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IF 15.153
Shiyang Lin,Mai Yang,Jiajie Chen,Wei Feng,Yu Chen,Yufang Zhu
As the emerging modalities for tumor therapy, sonodynamic therapy (SDT) and chemodynamic therapy (CDT) can generate reactive oxygen species (ROS), typically inducing tumor cell apoptosis. However, the construction of more efficient sonosensitizers integrated with excellent Fenton/Fenton-like catalytic activity to improve the synergistic therapeutic effect of SDT and CDT is still highly challenging. In this study, 2D semiconductor FePS 3 nanosheets (NSs), as one of the metal phosphorus trichalcogenides for both sonosensitizer and Fenton catalyst, are successfully synthesized via an ultrasonic-assisted liquid phase exfoliation method from bulk FePS 3 and further modified with lipoic acid-polyethylene glycol (LA-PEG) to obtain FePS 3 -PEG NSs with desirable biocompatibility. The in vitro and in vivo results demonstrate that the engineered FePS 3 -PEG NSs induce the combinatorial SDT/CDT effect attributing to the enhanced ROS generation and significant glutathione depletion, which can conduct highly efficient and safe tumor inhibition and prolong the life span of tumor-bearing mice. This work provides the paradigm of semiconductor FePS 3 NSs as the integrative sonosensitizer/Fenton nanocatalyst for dual nanodynamic tumor therapy, paving the new way for exploring other 2D metal phosphorus trichalcogenides in biomedicine.
研究领域:
生物医学工程
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纳米医学
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肿瘤学
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产品关联
DOI
PubMed
高影响因子
NANOTECHNOLOGY
·
2021
·Vol. 32
·期 48
·485203
·
IF 3.874
Yang Zhou,Chenguang Duan,Zongyu Huang,Qian Ma,Gengcheng Liao,Fei Liu,Xiang Qi
Herein, FePS3/reduced graphene oxide heterostructure has been prepared via a typical hydrothermal process, and flexible photodetectors based on hybrids have been subsequently fabricated. The photoresponse measurement results demonstrate that the photodetector exhibits obvious photoelectric conversion behavior without applied potential, indicating that the device possesses the capability to be self-powered. In addition, the photocurrent density of the as-fabricated photodetectors reaches up to 125 nA cm−2 under 90 mW cm−2 illumination intensity without an external power source, which is 5.86 times higher than single FePS3-based devices. Furthermore, the maximum attenuation in photocurrent density of the as-fabricated flexible photodetectors measured at −0.3 V after different bending cycles and bending angles is 29.8% and 17.7%, respectively. These results demonstrate that the as-fabricated photodetectors have excellent flexibility and provide a simple and effective strategy for the construction of flexible photodetectors.
研究领域:
材料科学
·
光电子学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
·
2023
·Vol. 21
·期 1
·1-15
·
IF 10.2
Luo Tingting,Jiang Mingyang,Cheng Ziqiang,Lin Yuntao,Chen Yuling,Zhang Zhenyu,Zhou Jian,Zhou Wenhua,Yu Xue-Feng,Li Shuchun,Geng Shengyong,Yang Hongyu
As a common tumor with high incidence, osteosarcoma possesses extremely poor prognosis and high mortality. Improving the survival of osteosarcoma patients is still a great challenge due to the precipice of advancement in treatment. In this study, a combination strategy of gene therapy and photothermal therapy (PTT) is developed for efficient treatment of osteosarcoma. Two-dimensional (2D) FePS 3 nanosheets are synthesized and functionalized by poly-L-lysine-PEG-folic acid (PPF) to fabricate a multifunctional nanoplatform (FePS@PPF) for further loading microRNAs inhibitor, miR-19a inhibitor (anti-miR-19a). The photothermal conversion efficiency of FePS@PPF is up to 47.1% under irradiation by 1064 nm laser. In vitro study shows that anti-miR-19a can be efficiently internalized into osteosarcoma cells through the protection and delivery of FePS@PPF nanaocarrier, which induces up-regulation of PTEN protein and down-regulation p-AKT protein. After intravenous injection, the FePS@PPF nanoplatform specifically accumulates to tumor site of osteosarcoma-bearing mice. The in vitro and in vivo investigations reveal that the combined PTT-gene therapy displays most significant tumor ablation compared with monotherapy. More importantly, the good biodegradability promotes FePS@PPF to be cleared from body avoiding potential toxicity of long-term retention. Our work not only develops a combined strategy of NIR-II PTT and gene therapy mediated by anti-miR-19a/FePS@PPF but also provides insights into the design and applications of other nanotherapeutic platforms.
研究领域:
肿瘤学
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纳米医学
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生物材料学
✓ 已验证
DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2023
·Vol. 170
·期 4
·047514
·
IF 3.9
Wei Shan,Xiuyun Ma,Guobo Chen,Feicui Xu,Haizhou Zhao,Lei Dong,Xuefeng Yan,Zhaoshun Bi,Liangmin Yu,Meng Qiu
Electrochemical dopamine (DA) sensors become important for the early diagnosis of psychiatric disorders like schizophrenia and Parkinson's disease due to their fast response, simplicity, and portability. However, traditional electrode modification materials such as noble metals and metal oxides have shortcomings such as high cost, low conductivity, or limited catalytic performance. Two-dimensional sulfide materials contribute to the smooth electrode reaction because of their ultra-high specific superficial area and favorable electrocatalysis properties, however, their low carrier mobility and poor electroconductibility limit the detection signal. In this paper, Co-doped FePS3 nanosheets were employed for DA detection for the first time. Fe0.9Co0.1PS3 nanosheets exhibited a detection limit of 120 nM, a linear range 0.25–100 μM and 120–500 μM, and possessed high recovery and reproducible stability when applied to human serum samples. Furthermore, according to the in situ XPS characterization, S atoms located on the outmost layer of Fe0.9Co0.1PS3 nanosheets could be combined with the phenolic hydroxyl oxygen of DA, which makes electrode reaction from DA to dopamine quinone easier. Co-doping can further enhance the above effect, and increase the carrier mobility of FePS3 nanosheets. This work demonstrated electrochemical sensors based on metal phosphorus trisulfide materials have tremendous potential for future application in mental disorder diagnosis.
研究领域:
医学诊断
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材料科学
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生物化学
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·
IF 19
Zhe Xiao,Xiangyu Dai,Dongting Jiang,Honggui Xie,Xueping Liu,Mingli Wu,Dongming Liu,Yun Li,Zhengfang Qian,Renheng Wang
2D layered FePS 3 is an anode material with high energy density for lithium-ion batteries. Here, a simple and effective vacuum filtration method is used to successfully synthesize nanocellulose (NC) and FePS 3 into a FePS 3 -NC electrode with a 3D network structure. Based on the detailed structural characterization, electrochemical testing, and density functional theory, the relationship between NC and FePS 3 materials in the lithium storage process is established from the perspective of lithium ions dynamics. The results display that NC can effectively decrease the adsorption energy of FePS 3 materials, promote the construction of a 3D network structure, and form flexible FePS 3 -NC electrodes. In addition, the migration path of lithium ions in the FePS 3 -NC system is more inclined to the Y-axis, and the migration barrier is also significantly reduced from 0.7714 to 0.4245 eV, which significantly improves the migration speed of lithium ions and the battery capacity. Therefore, the results of this study are conducive to further understand the dynamic mechanism of NC promoting rapid lithium storage in FePS 3 materials and can provide good guidance for the study of flexible electrodes.
研究领域:
材料科学
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电化学
·
能量存储
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2024
·Vol. 17
·期 16
·3988
·
IF 3.1
Liyuan Cheng,Qinglin Quan,Liang Hu
Van der Waals (vdW) heterostructures are mainly fabricated by a classic dry transfer procedure, but the interface quality is often subject to the vdW gap, residual strains, and defect species. The realization of interface fusion and repair holds significant implications for the modulation of multiple photoelectric conversion processes. In this work, we propose a thermally mismatched strategy to trigger broad-band and high-speed photodetection performance based on a type-I heterostructure composed of black phosphorus (BP) and FePS3(FPS) nanoflakes. The BP acts as photothermal source to promote interface fusion when large optical power is adopted. The regulation of optical power enables the device from pyroelectric (PE) and/or alternating current photovoltaic (AC–PV) mode to a mixed photovoltaic (PV)/photothermoelectric (PTE)/PE mode. The fused heterostructure device presents an extended detection range (405~980 nm) for the FPS. The maximum responsivity and detectivity are 329.86 mA/W and 6.95 × 1010Jones, respectively, and the corresponding external quantum efficiency (EQE) approaches ~100%. Thanks to these thermally-related photoelectric conversion mechanism, the response and decay time constants of device are as fast as 290 μs and 265 μs, respectively, superior to current all FPS-based photodetectors. The robust environmental durability also renders itself as a high-speed and broad-band imaging sensor.
研究领域:
材料科学
·
光电子学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanophotonics
·
2020
·Vol. 9
·期 15
·4555-4564
·
IF 7.491
Danyun Xu,Zhe Guo,Yudi Tu,Xinzhe Li,Yu Chen,Zhesheng Chen,Bingbing Tian,Shuqing Chen,Yumeng Shi,Ying Li,Chenliang Su,Dianyuan Fan
Two-dimensional iron phosphorus trichalcogenide (FePS 3 ) has attracted significant attention for its use in electricity, magnetism and optical fields due to its outstanding physical and chemical properties. Herein, FePS 3 was prepared using the chemical vapor transportation (CVT) method and then exfoliated by using fast electrochemical exfoliation. After gradient centrifugation, FePS 3 nanosheets with thicknesses ranging from 1.5 to 20 nm and lateral dimensions of 0.5–3 μm were obtained. By utilizing the spatial self-phase modulation (SSPM) effect, the relationships between the nonlinear refractive index and the size of the FePS 3 nanosheets were investigated in detail which revealed that the nonlinear refractive index can be effectively controlled by the size of the FePS 3 nanosheets. It is worth noting that the optimal FePS 3 nanosheets (3–5 layers thick and ∼1 μm in lateral dimensions) displayed the highest nonlinear refractive index of ∼10 −5 cm 2 W −1 . This work demonstrates the potential that FePS 3 nanosheets have for use in nonlinear optics or nonlinear optical devices.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
RARE METALS
·
2025
·
IF 11
Li Xin-Rui,Wang Zhi-Ying,Cao Shao-Wen,Zhao Cheng-Xiao,Yang Xiao-Fei
Two-dimensional (2D) nanomaterials have emerged as highly efficient co-catalysts in the field of photocatalytic water splitting, due to their distinct physicochemical features. Herein, a novel 2D nanomaterial, ultrathin FePS 3 nanosheets, is prepared by an ultrasound-assisted delamination process in organic solvent, followed by the in situ construction of CdS nanosheet/FePS 3 nanosheet hierarchical heterojunction via the solvothermal method. It is notable that the designed CdS/FePS 3 photocatalyst demonstrates an efficient hydrogen-producing performance up to 7565 μmol g −1 h −1 for hydrogen production reaction (HER) under visible-light illumination, which is almost 8 times higher than that of bulk CdS. The enhancement in HER performance is attributed to the synergy of accelerated interfacial charge transfer, high specific surface area, and extended visible-light absorption originating from as-synthesized conductive few-layer FePS 3 nanosheets. Furthermore, the charge transfer pathway of the constructed 2D CdS/2D FePS 3 heterojunction is unveiled by in situ atomic force microscopy with Kelvin probe force microscopy (AFM-KPFM), in situ X-ray photoelectron spectroscopy (XPS), and photoelectrochemical measurements. This study offers new insight into the rational design and controllable synthesis of FePS 3 -based composite photocatalytic systems for efficient photocatalytic hydrogen production. Graphical abstract
研究领域:
材料科学
·
纳米技术
·
催化
·
能量转换
·
物理化学
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2026
·
IF 5.2
Jiaxin Liu,Ke Wang,Tongtong Yu,Zhongkang Cao,Shangyun Chen,Xu Zhang,Peiyu Wang,Bingjun Yang,Juan Yang,Huiju Wang,Pengjun Ma
Transition metal phosphorus sulfides, owing to their unique 2D layered structure and inherent cost-effectiveness, have emerged as promising electrocatalysts in the urea oxidation reaction (UOR). However, they encounter a notable challenge that the dense stacking of their layers drastically restricts the exposure of electrochemically active sites and diminishes electron transfer efficiency, thereby directly leading to subpar performance in the UOR. Herein, based on an intercalation–exfoliation method, a novel layer structural regulation strategy for achieving few-layer FePS3 has been proposed. The results demonstrated that the interlayer stacking of pristine FePS3 could be significantly diminished, with the average layer thickness reducing from 25 nm to an impressive 8 nm. Benefiting from the changes in the layer structure, the few-layer FePS3 exhibits excellent UOR activity, requiring only 1.371 V (vs. RHE) to deliver 10 mA cm−2 and maintaining a low potential of 1.545 V at 300 mA cm−2, which is due to the enhanced exposure of electrochemically active sites and the increased electron transfer efficiency. Simultaneously, the mechanism of enhancing the UOR has been elucidated through in situ Raman and XPS studies. When the UOR of the FePS3/NF couples with the HER of Pt to achieve full electrolysis, the few-layer FePS3/NF system could achieve a urea degradation efficiency of 67.88% after 12 hours, significantly exceeding that of the pristine FePS3/NF system (50.3%). Hence, this work presents a novel strategy for regulating the layered structure of 2D FePS3 to fulfil the synergistic demands of highly efficient urea degradation and low-energy H2 production.
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产品关联
DOI
PubMed
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2026
·
IF 17.7
Rundong Chen,Yuhang Zhang,Bingquan Xia,Xianlong Zhou,Yanzhao Zhang,Shantang Liu
Photocatalysis is deemed a green approach to sustainable energy conversion with great promise for addressing future energy challenges. However, traditional photocatalytic systems are often inhibited by rapid recombination of photogenerated electron-hole pairs and low light-harvesting efficiency. To overcome these challenges, an S-scheme heterojunction integrating Zn x Cd 1– x S y (ZCS) nanocrystals with FePS 3 (FPS) nanosheets was designed to facilitate both photocatalytic hydrogen evolution and the conversion of benzyl alcohol to benzaldehyde (BAD). The obtained ZCS/FPS-15 (ZCSF-15) heterostructure exhibits remarkable visible-light-harvesting enhancement and charge separation efficiency, delivering a hydrogen evolution rate of 73.06 mmol g −1 h −1 and a BAD production rate of 46.68 mmol g −1 h −1 , corresponding to 22.34- and 53.65-fold performance enhancements, respectively, compared with that of bare ZCS. To reveal the charge transfer dynamics and clarify the reaction mechanisms, in-situ diffuse-reflectance Fourier-transform infrared spectroscopy was used to identify key oxidation intermediates, coupled with interfacial charge transfer dynamics probed using in-situ X-ray photoelectron spectroscopy and atomic force microscopy-Kelvin probe force microscopy. This work establishes a dual-function heterojunction model, offering valuable insights into how to design S-scheme heterojunctions for simultaneous green fuel generation and selective organic synthesis.
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DOI
高影响因子
危险品化学品经营许可证（带存储）