Catalysis Science & Technology
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2025
·
IF 4.2
Ning Fu,Zhao Liu,Xiangyu Li,Fan Zhu,Jie He,Guixiang Teng,Xingang Li,Chun Zhang
To address the challenge of antibiotic-contaminated water remediation, we designed a defect-engineered CoSe2@MoS2 photocatalyst by integrating selenium-deficient CoSe2 dodecahedra (derived from ZIF-67) with vertically aligned MoS2 nanosheets. The catalyst achieved 90.4% visible-light-driven tetracycline (TC) degradation within 60 minutes, demonstrating a 3.1-fold performance enhancement over pristine MoS2 due to the synergistic effects of atomic-scale defect engineering and heterostructure design. Density functional theory (DFT) calculations revealed a dual enhancement mechanism: selenium vacancies introduced localized mid-gap states, increasing the photogenerated electron density by 2.8-fold, while the CoSe2/MoS2 heterojunction formed a type II band alignment, facilitating interfacial electron transfer via a built-in electric field. In situ spectroscopic analysis confirmed the vacancy-mediated enhancement of reactive oxygen species (·OH/·O2−) generation, showing a 2.8-fold increase in yield. DFT-guided quantitative analysis further demonstrated that the improved activity resulted from the synergistic interaction between heterojunction formation and vacancy modulation. The catalyst exhibited excellent environmental stability, maintaining >88% efficiency over 10 cycles with minimal metal leaching (<0.2 ppm). These findings advance the development of photocatalysts for visible-light-driven wastewater treatment, addressing the critical trade-offs between catalytic efficiency, operational stability, and ecological compatibility.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2018
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IF 3.235
Xiaobing Xu,Liqian Wu,Yuan Sun,Tingting Wang,Xing Chen,Yuanqi Wang,Wei Zhong,Youwei Du
A hybrid approach is beneficial to simultaneously exploit the characteristics of capacitive and transition materials to increase the energy density and power density of supercapacitors . In order to achieve optimal electrochemical performance, by means of a facile hydrothermal co-synthesis, we synthesize a three-dimensional porous aerogel consisting of MoS 2 nanosheets and reduced graphene oxide (rGO) with a controllable composition and morphological structure. The MoS 2 /rGO porous aerogel hybrids working as electrode material for supercapacitors , can efficiently enhance surface charge transport, provide more chemical reaction sites, shorten the migration path for electrons and ions, and facilitate the electrolyte diffusion. Using electrochemical feature in two-electrode configurations and symmetric cell devices, we obtain a specific capacitance of 472 F/g with excellent rate capability and cycling stability (98.9% retention after 30,000 cycles) at the current density of 1.0 A/g. Additionally, our designed supercapacitors are flexible under mechanical deformations , which are useful for the next generation wearable electronic devices.
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Nanoscale
·
2014
·Vol. 6
·期 16
·9713-9719
·
IF 6.739
Lili Tao,Hui Long,Bo Zhou,Siu Fung Yu,Shu Ping Lau,Yang Chai,Kin Hung Fung,Yuen Hong Tsang,Jianquan Yao,Degang Xu
Due to the relatively weak van der Waals (VDW) force between interlayers, few-layer MoS2 nanosheets are prepared using a simple ultrasonic exfoliation method and incorporated into PMMA. The good nonlinear optical (NLO) property of the MoS2/PMMA composite for the nanosecond pulsed laser at both 532 and 1064 nm has been first reported. The size, thickness and atomic structure of MoS2 nanosheets have been characterized by transmission electron microscopy (TEM) and atomic force microscopy (AFM). The interesting dependence of interlayer separation with respect to the layer number of MoS2 has been successfully quantified. The average interlayer separation of the MoS2 nanosheets increases and deviates much from the theoretical value with reducing the layer number. Such few-layer MoS2 nanosheets have been homogeneously incorporated into solid-state PMMA, which shows low optical limiting thresholds, 0.4 and 1.3 J cm−2, and low limiting differential transmittance (TC), 2% and 3% for the nanosecond laser operating at 532 nm and 1064 nm, respectively. The results suggest that MoS2 nanosheet incorporated PMMA is a promising candidate of the solid NLO material for optical limiting applications.
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FUEL
·
2024
·
IF 6.7
Yao Wang,Tengyang Gao,Ruiting Li,Yan Chen,Wen Luo,Yang Wu,Yu Xie,Yong Wang,Yifan Zhang
Photocatalytic hydrogen production through water splitting is an appealing technology to alleviate the escalating fossil fuel energy crisis. The advancement of visible-light-driven hydrogen production systems is a crucial aspect of hydrogen research. In this study, we successfully synthesized a unique acorn leaf-like CdS/MoS 2 material via a hydrothermal method , with layered deposited MoS 2 nanosheets, for driving hydrogen generation under illumination. By systematically varying the sodium molybdate concentration, we looked into how the MoS 2 affected the optical properties and photocatalytic performance of the acorn-leaf-like CdS/MoS 2 . Under illumination, the photocatalytic hydrogen production performance of the acorn leaf-like CdS/MoS 2 reached 70.05 mmol·g −1 ·h −1 (at a catalyst dosage of 10 mg), which is approximately 330 times higher than the unmodified CdS original material. It was determined that the apparent quantum yield at 450 nm was 2.104 %, corresponding to a solar-to-hydrogen conversion efficiency of 9.383 %. Mechanistic investigations revealed that MoS 2 nanosheets function as co-catalysts and electron acceptors, effectively promoting electron transfer and the separation of photogenerated charge carriers from CdS, thereby consequently enhancing the kinetics of surface hydrogen evolution. This work offers valuable insights into the development of efficient photocatalysts with anti-photocorrosion properties for sustainable hydrogen production.
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高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Yizhen Ke,Linna Mao,Wenjing Jie,Tianxun Gong,Wen Huang,Xiaosheng Zhang
Tunability of facilitation in short-term memory (STM) provides great potential in bioinspired computing. Recently, several doping strategies were proposed to modify the intrinsic features of materials, resulting in the optimization of the facilitation index (FI). However, real-time scale tuning, which is implemented on the same synaptic device, has not yet been demonstrated. Inspired by the chemical-electrical mixed synapse structure in the brain, we propose a three-terminal artificial synapse based on an ion-gated MoS2 memristor. The gate terminal serves as a nonvolatile ionic pump via chemical intercalation, which effectively affects both the conductance baseline and the hysteresis degree of the STM effect of the memristor. We further modeled the postsynaptic current (PSC) behavior and used it for reservoir computing. Simulation results show that, due to the real-time tuning ability, the built reservoir can be programmed for specific handwritten recognition tasks with the pruning of neurons from 784 to 50. The developed artificial mixed synapse is promising for a downsampling module in neural network design.
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高影响因子
POLYHEDRON
·
2026
·
IF 2.8
Wang Ye,Xiang Li,Jian Tian,Xiyue Feng,Kexin Luo,Xinru Liu,Ling Li,Yingxi Wang
Water pollution has emerged as a critical global challenge, with persistent antibiotic residues posing severe threats to ecosystems, calling for efficient aqueous remediation technologies. In this study, a MIL-100(Fe) −24 /MoS 2 hybrid catalyst was constructed by integrating MIL-100(Fe) with MoS 2 . The hybrid material served as a heterogeneous catalyst activating peroxymonosulfate (PMS) in a photo-Fenton system for tetracycline (TC) degradation, achieving 80% removal within 30 min. Quenching experiments verified the involvement of both radical and non-radical pathways, with SO 4 • − and singlet oxygen ( 1 O 2 ) identified as the dominant reactive species. The effects of key parameters including catalyst dosage, PMS concentration, and initial pH were systematically investigated. Degradation intermediates were analyzed, and the catalyst exhibited satisfactory reusability and stability.
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高影响因子
Science China-Materials
·
2021
·Vol. 64
·期 9
·2202-2211
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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
·
电池技术
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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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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Zhiyi Liu,Wentao Niu,Tian Li,Chuanxi Ren,Jun Jing,Yufeng Hu,Donglin Ma,Zhidong Lou,Yu Zhang,Feng Teng
Monolayer molybdenum disulfide (MoS2) is a highly prominent material in optoelectronic devices, yet its intrinsic band structure limits its performance in the near-infrared regime. Here, we demonstrate a high-performance broadband photodetector based on monolayer MoS2 hybridized with eco-friendly CuInS2 quantum dots (CIS-QDs). The Type-II band alignment at the heterojunction interface enables efficient spatial separation of photogenerated carriers, while the CIS-QDs simultaneously passivate surface defects and induce n-type doping in the MoS2 channel. Consequently, the device exhibits a dramatically extended photoresponse spanning ultraviolet (395 nm) to NIR (980 nm), with the photocurrent enhanced by more than 2 orders of magnitude at 980 nm relative to pristine MoS2. The hybrid photodetector achieves a specific detectivity (D*) exceeding 1013 Jones at 395 and 625 nm, and a responsivity improvement of over 1 order of magnitude at 780 nm. These results validate the MoS2/CIS-QD heterostructure as a promising eco-friendly platform for high-performance broadband optoelectronic applications.
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PubMed
高影响因子
MOLECULES
·
2026
·Vol. 31
·期 16
·2878
·
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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高影响因子
ACS Omega
·
2026
·
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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高影响因子
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