JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2017
·
IF 4.233
Bo Huang,Dali Wang,Guan Wang,Faai Zhang,Li Zhou
Molybdenum disulfide (MoS 2 ) nanosheets are gaining increasing attention due to their attractive properties and myriads of potential applications. However, challenges in the enhancement of their colloidal stability and surface functionality still remain and significantly restrict their practical applications. Herein, we present a viable approach to functionalize MoS 2 nanosheets with multihydroxy hyperbranched polyglycerol (HPG) shell by surface-initiated ring-opening polymerization technique. The grafting of HPG from the surface of MoS 2 nanosheet yielded MoS 2 - g -HPG nanohybrid with excellent water dispersibility, good biocompatibility, and greatly enhanced colloidal stability against pH change, ionic strength variation and long-term storage. The MoS 2 - g -HPG also exhibited excellent light-to-heat conversion capability for in vitro photothermal therapy application. Meanwhile, the MoS 2 - g -HPG showed favorable surface functionality owing to its numerous surface hydroxyl groups , as demonstrated by the conjugation of functional molecules such as fluorescent dye rhodamine B. As such, this paper opens up new opportunities to empower MoS 2 nanosheets and other two-dimensional inorganic nanosheets with desired properties for various applications.
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高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Mangmang Yu,Huifang Zhu,Jiang Zhong,Fei Gao,Yongluo Qiao,Liang Shen
Flexible supercapacitors face limitations in capacitance and energy density due to structural constraints and sluggish ion diffusion. Herein, a cost-effective two-step confined synthesis is proposed to prepare molybdenum disulfide (MoS 2 )/polypyrrole (PPy)/manganese dioxide (MnO 2 ) ternary composites with high energy storage performance. The plane structure of MoS 2 not only ameliorates bipolaron concentration of PPy, but also preserves its conjugated structure during the combination with MnO 2 , thereby enhancing electrochemical stability. Nanoflower-structured MnO 2 can effectively improve ions adsorption/transport, as well as reinforce electrochemical reactivity. The measured specific surface areas increase from 33.25 m 2 /g for PPy to 112.47 m 2 /g for MoS 2 /PPy/MnO 2 . Consequently, synergistic effect of MoS 2 /PPy/MnO 2 components delivers a higher specific capacitance of 721 F g −1 at a current density of 1 A g −1 , while the specific capacitance of PPy, MoS 2 /PPy, and PPy/MnO 2 is only 179 F g −1 , 480 F g −1 , 270 F g −1 , respectively. The ternary composites supercapacitor exhibits a high mass power density of 3235.63 W/kg at an energy density of 40 Wh/kg. The cycling stability of MoS 2 /PPy/MnO2 material is also effectively improved compared to PPy/MnO 2 . After 5000 cycles, the capacitance of MoS 2 /PPy/MnO 2 is still 89.6 %, whereas that of PPy/MnO 2 is only 67.8 %. This research illuminates the fabrication of high-performance conducting polymer electrodes for wearable energy-storage devices.
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Biomaterials Research
·
2026
·
IF 9.8
Yijie Xie,Qiwen Jiang,Huabing Huang,Xinyuan Zhang,Xiaoyi Zheng,Yunyi Yang,Shige Wang,Jiulong Zhao,Zhaoshen Li
Inflammatory bowel disease (IBD) remains a therapeutic challenge due to its ongoing inflammation and the limited availability of effective local therapies. This study developed a biomimetic nanocomposite, layered double hydroxide-molybdenum disulfide (LDH-MoS2 [LM]) nanosheets encapsulated with bovine serum albumin (abbreviated as LM@BSA), with the aim of enhancing reactive oxygen species scavenging efficiency and improving colloidal stability while favoring lesion-associated localization and local retention in inflamed colonic tissue. In a dextran sulfate sodium-induced colitis mouse model, oral administration of LM@BSA nanocomposite significantly improved disease outcomes, as shown by reduced colon shortening, less body weight loss, and decreased levels of pro-inflammatory cytokines. Mechanistic analysis demonstrated that the LM@BSA nanocomposite inhibits ferroptosis by protecting mitochondrial structure and increasing glutathione peroxidase 4 expression. Transcriptomic data showed that the LM@BSA nanocomposite helps restore intestinal balance by down-regulating the phosphoinositide 3-kinase–protein kinase B signaling pathway, regulating extracellular matrix remodeling, and supporting immune pathway stability. Moreover, the LM@BSA nanocomposite corrected gut microbiota dysbiosis by increasing the abundance of beneficial Bacteroidales and reducing pro-inflammatory Desulfovibrionales. These findings suggest that the LM@BSA nanocomposite offers a promising and comprehensive multifaceted nanotherapeutic approach for IBD by modulating oxidative stress, ferroptosis, immune dysregulation, and gut microbiota imbalance.
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PubMed
高影响因子
Particuology
·
2026
·
IF 4.7
Guilin Zhou,Hui Nan,Lijun Yang,Jingchuan Wang,Ruizhu Yang,Fengsheng Qu,Hongmin Wang,Hong Lin,Pan Yang
Polyurethane (PU) coatings, extensively used for metal surface protection, face limitations in harsh environments due to their insufficient wear resistance. A novel PU composite coating system, synergistically reinforced with modified molybdenum disulfide (MoS 2 ) and silicon carbide (SiC) nanoparticles, was developed to enhance both corrosion and wear resistance. By modifying MoS 2 via the silane coupling agent (KH560)-polydopamine (PDA) cross-linking, a dense network was formed to block corrosive agents, while dispersed SiC nanoparticles optimized stress distribution and reduced surface friction. The composite coating containing 10 wt.% SiC (KPM-10S/PU) demonstrates comprehensive performance, exhibiting 342 times higher impedance compared to the pure PU, 79% reduction in the wear loss volume against 316L steel, and outstanding resistance in HNO 3 and salt spray tests. Although 15 wt.% SiC (KPM-15S/PU) achieved the highest initial impedance and the lowest friction coefficient, excessive SiC compromised matrix compatibility, increasing corrosion vulnerability. This work elucidates the corrosion blocking and wear inhibition reinforcement mechanism of MoS 2 -SiC composite, and provides a scalable strategy for designing multifunctional coatings in demanding environments of marine infrastructure.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Jing Wu,Jin Qu,Guang Yin,Tingting Zhang,Hao-Yu Zhao,Fan-Zhen Jiao,Ji Liu,Xiaofeng Li,Zhong-Zhen Yu
Although most solar steam generation devices are effective in desalinating seawater and purifying wastewaters with heavy metal ions , they are ineffective in degrading organic pollutants from wastewaters. Herein, we design novel solar-driven water purification devices by decoration of three-dimensional pinecones with MoS 2 nanoflowers via a one-step hydrothermal synthesis for generating clean water. The vertically arrayed channels in the central rachis and the unique helically arranged scales of the hydrothermal pinecone can not only transfer bulk water upward to the evaporation surface, but also absorb more solar light from different incident angles for solar-thermal evaporation and photodegradation of wastewaters under omnidirectional irradiations. The decorated MoS 2 nanoflowers can not only enhance the solar-thermal energy conversion efficiency, but also decompose organic pollutants in the bulk water by their photocatalytic degradation effects. The resultant hydrothermal pinecone with in situ decorated MoS 2 (HPM) evaporator exhibits a high evaporation rate of 1.85 kg m −2 h −1 under 1-sun irradiation with a high energy efficiency of 96 %. During the solar-driven water purification processes, the powdery HPM can also photodegrade organic pollutants of methylene blue and rhodamine B with high removal efficiencies of 96 % and 95 %, respectively. For practical demonstration, by floating in the methylene blue solution under 1-sun irradiation, the bulky HPM can generate clean water by simultaneous solar-thermal evaporation and photocatalytic degradation. The integration of solar steam generation and photocatalytic degradation mechanisms makes the HPM evaporator highly promising for practical high-yield purification of wastewaters.
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高影响因子
Polymers
·
2022
·Vol. 14
·期 8
·1506
·
IF 4.967
Yi Qian,Wenyuan Su,Long Li,Haoyan Fu,Jiayin Li,Yihao Zhang
The development of high-performance thermoplastic polyurethane (TPU) with high flame retardancy and low toxicity has always been the focus of its research. In this paper, the novel 3D hollow layered double hydroxide/molybdenum disulfide (LDH/MoS2) hybrid materials were synthesized by hydrothermal method using the MIL-88A as in situ sacrificial template and MoS2as synergistic flame retardant. Among all TPU composites, the peak heat release rate, total heat release rate, and total smoke release rate of TPU/NiFeTb-LDH/MoS2were reduced by 50.9%, 18.2%, and 35.8% compared with pure TPU, respectively. The results of the thermogravimetric infrared analysis demonstrated that the contents of combustible volatiles (hydrocarbons) and toxic volatiles (CO and HCN) emitted from TPU/LDH/MoS2were significantly reduced, indicating that LDH/MoS2hybrid materials can dramatically enhance the fire safety of TPU composites. Combined with the analysis of carbon residues and thermal stability of TPU composites, the enhanced flame retardancy and smoke suppression performances are primarily attributed to the catalytic carbonization of LDH and the physical barrier effect of MoS2.Keywords:layered double hydroxide;molybdenum disulfide;thermoplastic polyurethane;flame retardant
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Yuxuan He,Jin Qian,Bin Xu,Peifang Wang,Bianhe Lu,Sijing Tang,Pan Gao
Perovskite oxides and molybdenum sulfide (MoS 2 ) are both promising catalysts for advanced oxidation processes in environmental pollutant degradation. Herein, a core-shell structure of MoS 2 encapsulating Sr-Co perovskite microcrystalline (SC@MoS 2 ) was used to activate peroxymonosulfate (PMS) for degradation of organics. Levofloxacin (LVF) degradation by SC@MoS 2 /PMS system was improved obviously, and 0.2-SC@MoS 2 exhibited the optimized activation for PMS with best LVF degradation performance (97%) within 15 min. In the 0.2-SC@MoS 2 /PMS system, the dosage of catalyst was the key determinant of LVF degradation. Simultaneously, 0.2-SC@MoS 2 achieved outstanding reusability and good degradation capacity of different contaminants. The encapsulation of molybdenum disulfide layer facilitated electron transfer between PMS and core-shell structure. According to the EPR analysis and quenching experiments, both radicals (SO 4 − and OH), and nonradical ( 1 O 2 ) were involved in the degradation of LVF. Under visible light irradiation, O 2 − participated in the reaction and enhanced LVF degradation efficiency, because the valence band and conduction band of components are different. Furthermore, the density functional theory (DFT) calculation, intermediates determination and Toxicity Estimation Software Tool (T.E.S.T) analysis provided meaningful support in the degradation pathways and ecological risks of LVF residues.
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CHEMOSPHERE
·
2019
·
IF 5.108
Dongqin He,Ying Cheng,Yifeng Zeng,Hongwei Luo,Kai Luo,Jun Li,Xiangliang Pan,Damià Barceló,John C. Crittenden
Activation of peroxymonosulfate (PMS) and persulfate (PS) by Fe 2+ is widely used for oxidizing organic pollutants. However, their application is limited by the slow conversion rate of Fe 3+ to Fe 2+ and the accumulation of Fe 3+ . Here, we introduce commercial molybdenum disulfide (MoS 2 ) to promote the activation of PMS and PS by Fe 2+ , and explore the mechanism of this promotion using experimental and theoretical methods. The Fe 2+ /PMS/MoS 2 and Fe 2+ /PS/MoS 2 systems achieved faster rate of PMS and PS conversion and also higher degradation efficiency toward pollutants. About 94.7% and 87.6% of rhodamine B (RhB) could be degraded in Fe 2+ /PMS/MoS 2 (54 μM Fe 2+ , 1 mM PMS) and Fe 2+ /PS/MoS 2 (54 μM Fe 2+ , 0.25 mM PS) system, respectively. MoS 2 addition simultaneously promoted the Fe 3+ /Fe 2+ cycle, the PMS and PS conversion, and the RhB mineralization. As a co-catalyst, MoS 2 exhibited excellent stability for eight successive cycles of use. The predominant oxidant was identified as SO 4 − in Fe 2+ /PMS/MoS 2 and Fe 2+ /PS/MoS 2 systems. Theoretical calculations and a kinetic model were employed to evaluate the catalytic performance of the systems. These novel findings indicate that the combination of a commercially available MoS 2 catalyst with a low dosage of Fe 2+ is a promising and effective approach for efficient activation of PMS and PS to produce SO 4 − and OH.
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高影响因子
Micromachines
·
2023
·Vol. 14
·期 7
·1368
·
IF 3.4
Yan Lang,Shuru Xu,Chunbin Zhang
In this paper, a molybdenum disulfide fluorescent probe with an Fe3+fluorescent system was first synthesized by the hydrothermal method for the detection of iron ion concentration in oral solution of protein succinate. It was characterized by infrared, fluorescence, X-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. The probes were found to have good stability, photobleaching, and storage stability. The effects of dilution, pH, reaction time, and iron ion concentration on the fluorescent system were also investigated. The relative fluorescence intensity [(I0− I)/I0] showed a good linear relationship with the iron ion concentration in the range of 0–50 μM, with the linear equation [(I0− I)/I0] = 0.0148[Fe3+] + 0.0833 (r2= 0.9943, n = 11) and the detection limit of 2.43 μM. The reaction mechanism was also explored, as well as its ion selectivity, reversibility, accuracy, precision, and concentration of Fe ions in the actual sample. It was found that the probe can selectively detect Fe ions with a certain degree of reversibility, accuracy, precision, and ideal recovery, and it can be used for the determination of Fe3+in proteosuccinic acid oral solution.Keywords:MoS2quantum dots;fluorescent probe;Fe3+;performance;protein succinic acid oral solution
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2017
·
IF 5.401
Ziying Wang,Tong Zhang,Chen Zhao,Tianyi Han,Teng Fei,Sen Liu,Geyu Lu
In this work, we have reported a novel NO 2 sensor using molybdenum disulfide nanoparticles (MoS 2 NPs) decorated RGO (MoS 2 -RGO) hybrids as sensing materials, where MoS 2 -RGO hybrids were prepared by a two-step wet-chemical method. Firstly, MoS 2 NPs prepared by modified liquid exfoliation method from bulky MoS 2 powder. Then, MoS 2 -RGO hybrids were obtained by self-assembly of MoS 2 NPs and GO nanosheets, followed by a facile hydrothermal treatment progress. The combined characterizations indicate that MoS 2 NPs with the size of 3–5 nm are uniformly dispersed on RGO nanosheets. Most importantly, the sensor based on MoS 2 -RGO hybrids could detect NO 2 at room temperature. To further improve sensing performances, especially response and recovery rate, sensing properties are further examined by increasing the operation temperature to 160 °C. It is notably seen that MoS 2 -RGO-based NO 2 sensor not only shows improved sensitivity to NO 2 compared to pure RGO-based sensor, but also exhibits fast response and recovery characteristics (response time and recovery time are 8 s and 20 s toward 3 ppm NO 2 ). This work paves a new way for application of MoS 2 and RGO in chemical sensors, providing an effective method for fabrication of NO 2 sensors with high sensitivity and fast response/recovery rate.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2016
·
IF 3.014
Xiao Ding,Ying Huang,Suping Li,Na Zhang,Jianguo Wang
High-performance electromagnetic wave absorption materials with strong absorption intensity, broad bandwidth, low density and thin thickness can be widely applied in the civil and military areas. In this paper, FeNi 3 nanoalloy decorated on 3D architecture composite of reduced graphene oxide/molybdenum disulfide (FeNi 3 @RGO/MoS 2 ) was prepared by two-step of hydrothermal reaction . RGO/MoS 2 composite was synthesized by a hydrothermal process and then FeNi 3 nanoalloy was decorated on the RGO/MoS 2 nanosheets via the second hydrothermal process. Electromagnetic wave absorption performances of FeNi 3 @RGO/MoS 2 composite with different filler loadings in paraffin matrix were investigated for the first time and it improves significantly with the increase of filler loading. The maximum absorption bandwidth is 4.72 GHz with the thickness of 2.0 mm and the corresponding reflection loss value is −30.39 dB when the filler loading of FeNi 3 @RGO/MoS 2 is 40%. The ternary composite possesses dielectric loss and magnetic loss in the testing frequency region, magnetic loss plays an important role in low-frequency region and dielectric loss occupies the main part in the high-frequency area.
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高影响因子
RSC Advances
·
2016
·Vol. 6
·期 31
·26096-26103
·
IF 3.289
Xiaowen Wang,Xing Qian,Xiancai Jiang,Zhen Lu,Linxi Hou
Core–shell structured molybdenum disulfide (MoS2) coated polystyrene (PS) microspheres are synthesized with the help of hexadecyl trimethyl ammonium bromide (CTAB) through negative–positive electrostatic attraction. The morphology of the composite particles is studied by scanning electron microscopy (SEM), which apparently provides evidence of MoS2-coated PS. The microspheres’ structure and chemical components are investigated by X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy, respectively. The MoS2/PS composite particles show better thermal stability than PS according to thermogravimetric analysis (TGA). Novel electrorheological (ER) fluids based on the MoS2/PS composite dispersed in silicone oil are prepared and further examined by a rotational rheometer in a controlled shear rate mode under various electric field strengths. The influence of factors such as the electric field strength, the particle sizes, the proportions of the MoS2/PS composite and the functional groups on the surface of PS on ER properties is investigated. The related mechanism of these effects on ER behaviors is also analyzed in detail, aiming to find whether the graphene analogue MoS2 is superior to graphene when making them into ER fluids. MoS2 has reversible and tunable electrorheological characteristics and can transform its phase from a liquid-like to a solid-like state when exposed to an external electric field.
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