Journal of Environmental Chemical Engineering
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2025
·
IF 7.2
Xin Mao,Bin Liu,Liu Yang,Nan Li,Guangchao Li,Pengwei Yan
The persistent presence and detection of pharmaceuticals and personal care products in wastewater pose a significant threat to environmental health and efficient wastewater treatment. Herein, a multiphase activation system of molybdenum disulfide (MoS 2 ) and peroxymonosulfate (PMS) driven by far ultraviolet at 222 nm (UV 222 ) was developed for their removal. This system achieved complete degradation of diatrizoic acid (DTA) within 20 min and significantly reduced total organic carbon in secondary effluent. The high photon energy of UV 222 could efficiently catalyze MoS 2 and activate PMS, thereby enhancing the kinetics. Additionally, the adsorption of PMS onto the active sites of MoS 2 promoted the formation of a multi-radical generation network. Characterization results indicated that the redox cycling of Mo(IV)/Mo(VI) continually drove the decomposition of PMS to generate SO 4 ·⁻, while the low production ratio of Mo(VI) facilitated multiple efficient cycles. Mass spectrometry analysis revealed twelve intermediates formed during the degradation of DTA through deiodination, hydroxylation, iodine substitution, and amide hydrolysis. The generation of SO 4 ·⁻ and ·OH constitutes the main mechanism for DTA degradation. Moreover, ECOSAR predictions revealed that deiodination played a critical role in reducing the ecological toxicity of DTA transformation products. This study presents an innovative UV₂₂₂-driven advanced oxidation process that overcomes the limitations of conventional photocatalysis and Fenton-like systems—such as narrow pH windows, excessive oxidant requirements, and ionic interference, offering a robust and efficient strategy for the removal of emerging contaminants from wastewater.
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高影响因子
Journal of Energy Storage
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2025
·
IF 9.8
Shaochen Wang,Liwei Liu,Zhen Shang,Guoyong Huang,Shengming Xu
Graphite anodes are limited by low capacity and instability. Conversion-type transition metal sulfides (TMSs) offer high energy density, yet single-component TMSs suffer from rapid capacity decay thanks to volume changes, hindering practical implementation. This study explored a high-specific energy anode material MoS 2 /CoS 2 @C. The composite was based on two-dimensional layered 2H-MoS 2 nanosheets, featuring uniformly distributed CoS 2 nanoparticles on the surface. Finally, the carbon material was encapsulated onto the sulfide surface. A heterojunction is formed at the interface between CoS 2 and MoS 2 , which modulated the surface electronic structure, inhibited aggregation, and facilitated the formation of high-quality TMSs nanocrystals. Additionally, the carbon serves as a confining layer for the TMSs, enabling enhanced cycling stability. The material exhibits a remarkable specific capacity exceeding 730 mAh·g −1 after 380 cycles at a rate of 0.5C in coin-type half-cells. Furthermore, when utilized in pouch cells with a lithium metal anode, it retains a capacity of 436.5 mAh·g −1 following 100 cycles. Theoretical calculations reveal optimized electronic arrangement at the heterojunction interface, where the constructed built-in electric field facilitates lithium-ion transport. The lithium-ion migration energy barrier is reduced from 0.78 eV to 0.34 eV, thereby significantly accelerating reaction kinetics. Furthermore, the lithium metal pouch cells demonstrate no thermal runaway behavior even after undergoing abuse tests such as extrusion, overcharging, and short-circuiting. These results highlight the potential of MoS 2 /CoS 2 @C as a promising anode material for advanced lithium-ion battery systems, offering excellent energy storage capacity, prolonged cycling stability, and improved operational safety.
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International Journal of Nanomedicine
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2021
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IF 6.4
Shuai Li,Shuping Yang,Chong Liu,Jintong He,Tian Li,Changhui Fu,Xianwei Meng,Haibo Shao
Purpose P-glycoprotein (P-gp), which is highly expressed in liver cancer cells, is one of the obstacles for the treatment of cancer. In this study, we have prepared and characterized a kind of novel ICG&Cur@MoS2 (ICG and Cur represent indocyanine green and curcumin, respectively) nanoplatform, which can achieve photothermal-photodynamic therapy and inhibit the P-gp effectively and safely.Methods In this work, plenty of studies including drug release, acute toxicity, Western blot, real-time PCR, cell viability, therapeutic experiment in vivo, immunofluorescence and so on were conducted to test the antitumor potential of ICG&Cur@MoS2 and the inhibitory effect of curcumin on P-gp.Results The ICG&Cur@MoS2 NPs exhibit an excellent photothermal effect and relatively low toxicity. Cell viability in the ICG&Cur@MoS2 + NIR group was significantly lower than that in ICG@MoS2 + NIR group (75.3% vs 81.2%, 59.0% vs 64.4%, 20.3% vs 27.5%, and 15.4% vs 22.3%) at the concentration of ICG at 0.5, 5, 25, 50 μg/mL (P<0.05 at each concentration). Western blot, Q-PCR, and immunofluorescence assay indicate ICG&Cur@MoS2 NPs can inhibit the P-gp effectively and safely. In vivo, the tumors in the ICG@MoS2 + NIR group are significantly smaller than those in the MoS2 + NIR group (95.0 vs 420.9 mm3, p<0.05).Conclusion In conclusion, we have successfully synthesized ICG&Cur@MoS2 nanoparticles which can not only achieve PTT-PDT but also inhibit P-gp effectively. Our findings indicate that the PTT-PDT exhibits great potential in the treatment of hepatocellular carcinoma. Meanwhile, ICG&Cur@MoS2 can effectively inhibit the expression of P-gp, which will enhance the PDT effect.
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Science China-Materials
·
2021
·Vol. 64
·期 9
·2202-2211
·
IF 8.273
Wang Yaqian,Shen Yongli,Xiao Xiong,Dai Linxiu,Yao Shuang,An Changhua
Metastable 1T′ MoTe 2 has attracted much attention as a cost-effective electrocatalyst for hydrogen evolution reaction (HER) in recent years. However, few studies were done over common stable 2H phase because it often exhibits inferior performance. Herein, stable 2H MoTe 2 with S-doped Te vacancies has been synthesized by one-step telluride conversion of 1T MoS 2 at 700°C under Ar/H 2 atmosphere. It is demonstrated that the synergistic effect of S-doping and Te vacancies changes the electronic structures of the catalyst. Density functional theory (DFT) studies show that plentiful electrons accumulate on the surface S atoms in S-doped Te vacancies of 2H MoTe 2 catalyst, which may be as active sites to promote HER. Moreover, the as-synthesized catalyst can be directly used as working electrode, and realizes current density of 100 mA cm −2 at overpotential of 217 mV with Tafel slope of 94 mV dec −1 . This work stimulates intensive studies on the activation of inert phase of other nanocatalysts towards various reactions.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2019
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IF 4.175
Chunru Li,He Song,Changming Mao,Hongrui Peng,Guicun Li
Antimony (Sb) is an attractive anode material for lithium-ion batteries with high theoretical capacity. However, its practical application is greatly hindered by the rapid capacity fading due to the large volume expansion during lithiation. Tuning the morphology of active materials at the nanoscale or designing reasonable components is essential to address this issue. Employing an antimony sulfide nanorod as semi-sacrificial template, here, we successfully synthesize one-dimensional MoS 2 sheets-decorated Sb@Sb 2 S 3 @C(MoS 2 -Sb@Sb 2 S 3 @C) nano-structure via facile thermal carbonization of Mo-polypyrrole complex coating film. During annealing, metallic Sb from the partial reduction of Sb 2 S 3 nanorods is embedded into amorphous carbon nanotubes that are derived from polypyrrole and simultaneously MoS 2 nanosheets forms on the surface of Sb-Sb 2 S 3 -C nanostructures. This unique hierarchical tubular composite not only can serve as robust skeleton frameworks for accommodating volume changes of metallic Sb and Sb 2 S 3 during cell cycling, but also are characterized by high electronic conductivity (because of the amorphous carbon nanotubes and metallic Sb) and abundant active sites, both of which are beneficial for the improvement of Li-ion storage properties. As expected, the MoS 2 -Sb@Sb 2 S 3 @C composite exhibit a high specific capacity (1596 mAh g −1 at 0.1 A g −1 ), high rate capability (481 mAh g −1 at 5 A g −1 and 355 mAh g −1 at 8 A g −1 ), and stable cycling performance (760 mAh g −1 maintained after 100 cycles at 1 A g −1 ). Our work potentially sheds some light on future development of alloy-type anodes for battery applications.
研究领域:
材料科学
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电化学
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纳米科技
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能源存储
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电池技术
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ACS Applied Materials & Interfaces
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2020
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IF 8.758
Xinglai Zhang,Jing Li,Zongyi Ma,Jian Zhang,Bing Leng,Baodan Liu
Molybdenum disulfide (MoS2) as a typical two-dimensional (2D) transition-metal dichalcogenide exhibits great potential applications for the next-generation nanoelectronics such as photodetectors. However, most MoS2-based photodetectors hold obvious disadvantages including a narrow spectral response in the visible region, poor photoresponsivity, and slow response speed. Here, for the first time, we report the design of a two-dimensional MoS2/GaN van der Waals (vdWs) heterostructure photodetector consisting of few-layer p-type MoS2 and very thin n-type GaN flakes. Thanks to the good crystal quality of the 2D-GaN flake and the built-in electric field in the interface depletion region of the MoS2/GaN p–n junction, photogenerated carriers can be rapidly separated and more excitons are collected by electrodes toward the high photoresponsivity of 328 A/W and a fast response time of 400 ms under the illumination of 532 nm light, which is seven times faster than pristine MoS2 flake. Additionally, the response spectrum of the photodetector is also broadened to the UV region with a high photoresponsivity of 27.1 A/W and a fast response time of 300 ms after integrating with the 2D-GaN flake, exhibiting an advantageous synergetic effect. These excellent performances render MoS2/GaN vdWs heterostructure photodetectors as promising and competitive candidates for next-generation optoelectronic devices.
研究领域:
纳米电子学
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光电子学
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材料科学
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半导体物理
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光子学
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Journal of Energy Storage
·
2026
·
IF 9.8
Guangsheng Dong,Zhida Yang,Binbin Gao,Zihao Zhu,Lu Tao,Wenjun Dong
The unique two-dimensional layered structure and notable theoretical specific capacity of molybdenum disulfide (MoS 2 ) make it highly competitive anode materials for sodium-ion batteries (SIBs). However, its practical utility is hampered by sluggish Na + /electron transport kinetics and substantial volume changes. Herein, the successful synthesis of an ultrafine MoS 2 /CuS heterostructure embedded in a P-doped carbon framework (MoS 2 /CuS@C) is achieved via sulfurization of an octahedral bimetallic Mo/Cu-metal-organic frameworks (MOFs) precursor. The rationale for achieving superior electrochemical performance hinges on an ingenious design: the leverage of p-n heterojunctions within the carbon framework. The p-n heterojunction of ultrafine MoS 2 /CuS can powerfully drive Na + /electron transfer, thus enhancing the reaction kinetics. Concurrently, the uniform confinement of this heterostructure within the MOFs-derived carbon framework not only supplies the mechanical robustness to withstand volume variation but also creates a highly conductive network to boost overall conductivity. Hence, the MoS 2 /CuS@C anode for SIBs exhibits exceptional cycling stability, demonstrating a capacity of 528 mAh g −1 through 3000 prolonged cycles at 10 A g −1 . Furthermore, the MoS 2 /CuS@C//Na 3 V 2 (PO 4 ) 3 full cell achieves a well-maintained capacity of 44.6 mAh g −1 over 500 cycles. This work establishes a design blueprint aimed at developing efficient anodes.
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Soil & Environmental Health
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2026
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IF 9.4
Yilun Lan,Xiangyu Zhu,Wentao Yu,Kun Wang,Baohai Li,Baoliang Chen
The rhizosphere is microscopically heterogeneous, yet the impact of uneven distribution of nanomaterials (NMs) on roots remains unclear. Here, using Arabidopsis thaliana and MoS 2 nanosheets as the model plant and NMs, respectively, we employed a microfluidic root chip housed in a Petri dish with moist dust-free paper to investigate root responses to spatially asymmetric exposure. We compared symmetric exposure (half dose delivered to each root side; a homogeneous scenario) with asymmetric exposure (full dose to one side; a heterogeneous scenario) of MoS 2 nanosheets over a 5-day period. Results showed that this spatial distinction alone is sufficient to elicit divergent growth and physiological responses in seedling roots. Real-time imaging revealed that symmetric exposure induced a classic dose-dependent toxicity from excess MoS 2 nanosheets-induced stress oxidative damage, whereas asymmetric exposure elicited a hormesis effect on root growth, with asymmetric exposure of 50 mg L -1 MoS 2 nanosheets for 64 h increasing root length by 18% compared to symmetric exposure at 25 mg L -1 . Mechanistic investigations, integrating dynamic monitoring and inhibition experiments using fluorescence probes and an auxin reporter, showed that localized stimulation promoted root growth via Fe 2+ -dependent reactive oxygen species signaling with asymmetric exposure increasing Fe 2+ and ROS levels by approximately 1.74-fold and 2.03-fold, respectively, relative to symmetric exposure, leading to auxin accumulation in root tips. Our findings demonstrate that spatial heterogeneity is an essential consideration for evaluating and designing the application of redox-active NMs.
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ACS Omega
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2026
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IF 5.2
Yili Li,Jinxin Fang,Xinyi Du,Liqiang Deng,Xiaoya Mo,Haijun Huang,Weiguo Cao
Herbal medicines are particularly vulnerable to contamination by polycyclic aromatic hydrocarbons (PAHs) due to their relatively long growth cycles and multistep processing. This contamination may compromise the efficacy and safety of the prepared herbal slices. The current work innovatively synthesized a hierarchical composite of MXene@Cu-BTC/PPy carbon with MWCNTs@MoS2 (MCuP350/MWCNTs@MoS2) through a sequential in situ growth approach. The material was characterized by using Field Emission Scanning Electron Microscopy (FE-SEM), High-Resolution Transmission Electron Microscopy (HR-TEM), X-ray Photoelectron Spectroscopy (XPS), X-ray Diffraction (XRD), and Fourier Transform Infrared Spectroscopy (FT-IR) techniques. The electrochemical sensor was prepared based on the MCuP350/MWCNTs@MoS2 composite, which exhibited excellent electrocatalytic activity, displaying good linear responses to both anthracene (ANT) and phenanthrene (PHE). The detection limits of the presented sensor were 0.604 μM (ANT) and 0.240 μM (PHE), respectively. In commonly used herbal medicine of licorice, the effectiveness of the developed sensor for detecting ANT and PHE was validated by the standard addition method, with satisfactory recoveries of 100.36%–104.75% and 97.43%–104.44%, respectively. Additionally, the sensor exhibits high selectivity against the potential interfering substances existing in licorice. These results confirm the feasibility of directly detecting PAHs in licorice via the developed sensor without the need for complex sample pretreatment.
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PubMed
高影响因子
MOLECULES
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2026
·Vol. 31
·期 16
·2878
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IF 5.1
Bochen Jiang,Xiaojing Sui,Ziran Niu,Yanhua Lei,Jie Wang,Liu Hui,Bing Zhang,Jiangdong Cao,Yu Gu,Zhongzhou Cui
Solar-driven advanced oxidation processes and interfacial water evaporation represent promising strategies to simultaneously address water pollution and freshwater scarcity. However, conventional photo-Fenton catalysts are predominantly powder-based and suffer from difficult catalyst recovery, inefficient H2O2utilization, and limited practical applicability. Herein, a multifunctional bacterial-cellulose-based composite membrane (BC-MTP) was designed by immobilizing 1T-2H MoS2and a tea-polyphenol/polypyrrole (TP/PPy) copolymer through a blending–copolymerization strategy. The three-dimensional BC network anchors the catalytic components and supports their repeated use, while the BC-MTP membrane achieves 88.2% tetracycline removal using 20 μL H2O2, four times lower than the dosage used for the corresponding powder catalyst. Because dissolved Fe was not quantified by ICP-OES or ICP-MS, the present results are interpreted as evidence of improved H2O2utilization and component immobilization rather than quantitative proof of suppressed iron leaching. The incorporation of 1T-2H MoS2and TP/PPy also provides strong broadband light absorption and photothermal conversion, yielding a solar-driven evaporation rate of 1.34 kg m−2h−1and an energy efficiency of 80.1% under the tested laboratory conditions. This work demonstrates a membrane platform integrating photo-Fenton degradation and solar-driven water evaporation for water-purification applications.
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PubMed
高影响因子
Catalysis Science & Technology
·
2023
·Vol. 13
·期 8
·2340-2348
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IF 5
Zhenzhen Yang,Yuhan He,Pengfei Tang,Chenhui Xu,Genlei Zhang,Jianbo He
It is challenging to effectively convert fructose to 2,5-diformylfuran (DFF) over a simple and low-cost bifunctional catalyst. In this study, an oxygen-incorporated 3D flower-like MoS2 microsphere is prepared by a simple hydrothermal procedure and serves as a highly active bifunctional catalyst exhibiting both acidity and oxidability, which contribute to the dehydration of fructose to HMF and the aerobic oxidation of HMF to DFF, respectively. A DFF yield of 98.1% with a HMF conversion of 100% is achieved in the aerobic oxidation of HMF to DFF catalyzed by MoS2 under the optimum reaction conditions. Based on the experimental and catalyst characterization results, a possible reaction mechanism that involved Mo6+/Mo4+ is proposed for MoS2-catalyzed oxidation of HMF to DFF. Then, MoS2 is used as a bifunctional catalyst for direct conversion of fructose to DFF, achieving a high DFF yield of 81.3% by a “one-pot, two-step” strategy. Importantly, the as-prepared MoS2 catalyst reveals no significant change in five consecutive reaction runs demonstrating the excellent stability of the catalyst.
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ACS Applied Nano Materials
·
2023
·
IF 5.9
Shanyi Wang,Weihao Jin,Yujia Wu,Wanzhen Li,Yugui Tao,Jun Wang,Kai Yang,Weiwei Zhang,Lin Gui,Fei Ge
Drug-resistant bacterial infections pose a significant threat to global public health. Furthermore, the formation of biofilms makes traditional antibiotic treatments significantly less effective in killing multidrug-resistant (MDR) bacteria. In this work, we prepared a molybdenum disulfide (MoS2) nanosphere-based nanocomposite that utilized both photothermal therapy (PTT) and chemodynamic therapy (CDT) for effectively eradicating biofilms. A layer of manganese dioxide (MnO2) was adsorbed onto the surface of the MoS2 nanospheres by redox and electrostatic adsorption methods, and the resulting MoS2/MnO2 were loaded with 2,2′-azobis[2-(2-imidazolin-2-yl)propane]-dihydrochloride (AIPH) to form the MoS2/MnO2-AIPH nanocomposite (MMA). The microenvironment of biofilms is slightly acidic, lacks oxygen, and has a high concentration of glutathione (GSH). The MnO2 was capable of reacting with GSH to deplete it while also generating •OH radicals for CDT. In the presence of NIR light (808 nm), the temperature increase brought about by PTT further enhanced the CDT efficacy synergistically. The results showed that the photothermal conversion efficiency of the MMA was 40.5% at a concentration of 100 μg/mL, and the biofilm eradication rate of both MDR Escherichia coli and MDR Staphylococcus aureus was above 90%. The high bacterial inhibition rate (above 96%), as well as the excellent biosafety and biocompatibility of the MMA nanocomposite enabled it to effectively promote wound healing, which has significant implications in treating bacterial infections and promoting wound healing in clinical settings.
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