COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Mingmin Jia,Wenhao Cao,Qiuxia Chen,Zhiyi Xia,Shuo Shi,Mingzhi Zheng,Hengyang Mao,Meisheng Li,Yijiang Zhao,Dingliang Dai,Jianhao Qiu
In this study, a g-C 3 N 4 /MoS 2 composite membrane was successfully fabricated via electrostatic interactions and vacuum-assisted self-assembly. The established heterojunction markedly enhanced charge separation, yielding superior visible-light photocatalytic activity with 95.5% methylene blue degradation in 150 min. The membrane also demonstrated efficient dye separation (70.8% rejection for carmine red; 66.7% for malachite green) and notable antifouling properties, achieving a 74.9% flux recovery after visible-light cleaning. This work presents a synergistic strategy for simultaneous photocatalytic degradation and membrane separation in advanced water treatment.
✓ 已验证
产品关联
DOI
高影响因子
COLLOID AND POLYMER SCIENCE
·
2023
·Vol. 301
·期 3
·175-187
·
IF 2.4
Meng Rui,Liu Liqin,Guo Weihong
A novel Al 2 O 3 –PDA–MoS 2 nanohybrid was synthesized by depositing Al 2 O 3 nanoparticles on the surface of molybdenum disulfide (MoS 2 ) sheets covered with polydopamine (PDA). Many characterizations demonstrated that the Al 2 O 3 was successfully deposited on the surface of MoS 2 . It was found that when the mass ratio of PDA–MoS 2 to Al 2 O 3 was 1.5:1, the nano-hybrid filler showed good dispersion performance. Then, the composite coating samples were prepared by adding Al 2 O 3 –PDA–MoS 2 (1.5:1) hybrid to waterborne epoxy resin. The effects of Al 2 O 3 , MoS 2 , and PDA–MoS 2 on the corrosion resistance of epoxy coating were also investigated. The potentiodynamic polarization test demonstrated that Al 2 O 3 –PDA–MoS 2 nanohybrids had excellent corrosion inhibition properties. The results of electrochemical impedance spectroscopy also revealed that the impedance modulus of Al 2 O 3 –PDA–MoS 2 /EP composite coating was nearly two orders of magnitude higher than that of pure epoxy resin after immersion in saline for 21 days. This study confirmed that Al 2 O 3 –PDA–MoS 2 nanosheets had better barrier properties and corrosion inhibition properties, and provided a new idea for the wide application of nanofillers in the field of anticorrosion.
✓ 已验证
DOI
高影响因子
Small
·
2018
·Vol. 14
·期 17
·1703818
·
IF 9.598
Zhi Chen,Dangui Yin,Ming Zhang
Sandwich-like MoS 2 @SnO 2 @C nanosheets are prepared by facile hydrothermal reactions. SnO 2 nanosheets can attach to exfoliated MoS 2 nanosheets to prevent restacking of adjacent MoS 2 nanosheets, and carbon transformed from polyvinylpyrrolidone is coated on MoS 2 @SnO 2 , forming a sandwich structure to maintain cycling stability. As an anode for sodium-ion batteries, the electrode greatly deliverers a high initial discharge specific capacity of 530 mA h g −1 and maintains at 396 mA h g −1 after 150 cycles at 0.1 A g −1 . Even at a large current density of 1 A g −1 , it can hold 230 mA h g −1 after 450 cycles. Besides, as an anode for K + storage, the electrode also shows a discharge capacity of 312 mA h g −1 after 25 cycles at 0.05 A g −1 . This work may provide a new strategy to prepare other composites which can be applied to new kind of rechargeable batteries.
✓ 已验证
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2017
·
IF 9.446
Qun-Zeng Huang,Yan Xiong,Qian Zhang,Hong-Chang Yao,Zhong-Jun Li
Development of noble metal-free and highly efficient co-catalyst that endows semiconductor materials with high performance is of great significance towards enhancing photocatalytic H 2 evolution. Herein, a series of novel Mn 0.25 Cd 0.75 S/MoS 2 composites have been successfully prepared by a facile one-step hydrothermal method . The photocatalytic activity of the as-prepared photocatalysts for H 2 production from water splitting under visible-light irradiation (λ ≥ 400 nm) was investigated. The results showed that Mn 0.25 Cd 0.75 S/MoS 2 heterostructured composites have a higher photocatalytic activity than Mn 0.25 Cd 0.75 S, implying that the intimate interfacial contact between Mn 0.25 Cd 0.75 S and MoS 2 facilitates electron transfer from Mn 0.25 Cd 0.75 S to MoS 2 , thus promoting the separation of photogenerated charge carriers and providing more active sites for H 2 evolution reaction. The introduction of noble metal-free MoS 2 co-catalyst led to a remarkable improvement in the photocatalytic H 2 evolution activity of Mn 0.25 Cd 0.75 S, and the content of MoS 2 in composite had an important influence on the photocatalytic activity. It was confirmed that 0.7 wt% of MoS 2 loading content achieves a maximum photocatalytic H 2 evolution rate of 12.47 mmol g −1 h −1 , which was much higher than that of Mn 0.25 Cd 0.75 S and also slightly higher than that of Mn 0.25 Cd 0.75 S/Pt (1.0 wt%). This work revealed that low cost MoS 2 could replace noble metal Pt as a highly efficient co-catalyst in enhancing the photocatalytic activity of semiconductor materials.
✓ 已验证
DOI
高影响因子
Journal of Materiomics
·
2023
·Vol. 9
·期 6
·1122-1128
·
IF 9.4
Yanze Wu,Lin Wang,Zhifang Chai,Weiqun Shi
Two-dimensional layered transition metal carbides (MXenes), have huge potential advantage for applications in hydrogen evolution reaction (HER). However, the hindered hydrogen evolution at large current densities and the instability of MXenes during HER remains major challenges. Herein, we report the MoS 2 /Mo 2 CT x nanoarray with aerophobic structure via molten salt synthesis. In situ vertical distribution of MoS 2 nanoarray on the surface of Mo 2 CT x accelerates hydrogen gas release from the electrode, exhibiting significantly enhanced catalytic activity and stability to bare MoS 2 and Mo 2 CT x . The MoS 2 /Mo 2 CT x nanoarray possesses excellent stability at −100 mA/cm 2 for 100 h with only 3% overpotential increase. Our work provides guidance for developing high-stability MXene-based catalysts by virtue of in situ bonding between nanoarray and MXene.
✓ 已验证
DOI
高影响因子
Science China-Physics Mechanics & Astronomy
·
2024
·Vol. 68
·期 2
·226811
·
IF 6.4
Liu Xueying,Liu Shiying,Xiao Yulong,Xu Chang,Wu Jiaxin,Li Kaihui,Li Si-Yu,Pan Anlian
Twisted transition metal dichalcogenides (TMDs) homo-bilayers host unique quantum properties, which can be tuned by interlayer twist angle θ . However, the systematic evolution of their typical electronic properties with respect to the twist angle θ , which is crucial for identifying the “special angle” analogous to the “magic angle” of twisted bilayer graphene in correlation physics studies, remains incompletely understood. Here, via scanning tunneling microscopy (STM) and spectroscopy (STS), we investigate the variation of the moiré potential, flat band, and layer polarization characteristics across a wide range of twist angle θ in twisted bilayer MoS 2 (TB-MoS 2 ). The moiré potential of the valence band exhibits a non-monotonic variation with θ , peaking at a maximum value up to 204 meV at θ ∼1.7°. Concurrently, at the same θ , the bandwidth of the flat band at the Γ V point of the valence band attains its minimum, precisely signifying the “special angle” θ c ∼1.7° in TB-MoS 2 . Interestingly, layer polarization in the moiré superlattice is spatially visualized through the distribution of local density of states (LDOS) at the energies of both Γ V and K V points of the valence band, where the polarization degree at the Γ V point demonstrates a close dependency on θ . Our findings deepen understanding of twist-angle effect in TMDs, advancing both fundamental physics and practical application.
✓ 已验证
DOI
高影响因子
OPTICS AND LASER TECHNOLOGY
·
2023
·
IF 5
Shizhou Tan,Pengcheng Jian,Maocheng Shan,Yongming Zhao,Zhihua Zheng,Yiming Yang,Yuhui Zeng,Dan Xu,Zhenyu Chen,Changqing Chen,Feng Wu,Jiangnan Dai
In this work, we demonstrated tunable structured AlGaN-based nanoporous (NP) distributed Bragg reflectors (DBRs) with high-reflectivity through one-step vertical-lateral electrochemical etching (ECE). The aperture of nanopores in the doping layer and the size and density of V-pits on the surface of NP-DBRs can be tuned by controlling the etching bias. Furthermore, by further tuning the thickness of alternating layers, we achieved high reflectivity of NP-DBRs at multiple center wavelengths within the wavelength range from 280 to 800 nm. To explore its potential applications, MoS 2 with a photoluminescence (PL) emission in the red light region was grown for the first time on the NP-DBRs. Due to the light localized effect of surface V-pits and the high reflectivity of the bottom DBRs , the PL intensity of MoS 2 was significantly enhanced by a factor of 37.3 compared to the region without NP-DBRs. The PL enhancement of MoS 2 on porous AlGaN and different periodic NP-DBRs further validated the PL enhancement mechanism. The corresponding theoretical simulations also revealed that the PL enhancement should be attributed to the combined effect of enhanced light absorption and NP-DBRs induced emission interference. The fabricated AlGaN-based NP-DBRs provide a new approach for improving the quantum efficiency of two-dimensional layered materials, which holds significant importance for advancing the development of miniaturized and integrated 2D/3D heterogeneous structure systems in the field of optoelectronics.
研究领域:
光电子学
·
半导体材料
·
纳米光子学
·
二维材料
·
固体物理
·
表面科学
·
集成光子器件
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2017
·
IF 7.504
Yong Jiang,Yibo Guo,Wenjun Lu,Zhenyu Feng,Baojuan Xi,Shuangshuang Kai,Junhao Zhang,Jinkui Feng,Shenglin Xiong
Herein, we have designed and first synthesized a unique ternary hybrid structure by simultaneously growing SnS2 and MoS2 particles on graphene sheets (denoted as MoS2/SnS2-GS) via one-pot hydrothermal route. The charge incompatibility between MoO42– and graphene oxide with negative charged functional groups on surface can be compromised with the aid of Sn4+ cations, which renders the final formation of SnS2 and MoS2 on GS surface. This is the first report of the cohybridization of MoS2 and SnS2 with GS matrix from anionic and cationic precursors in the absence of premedication of graphene surface. When MoS2/SnS2-GS acts as anodes for lithium-ion batteries, the hybrids exhibit much better cycling stability than MoS2-GS and SnS2-GS counterparts. The compact adhesion of MoS2/SnS2 nanoparticles helps offset the undesired result of destruction of electrode materials resulting from volume expansion during repeated cycles. Furthermore, by combination with their synergetic effect on interface and the presence of discrepant asynchronous electrochemical reactions for SnS2 and MoS2, MoS2/SnS2-GS hybrids are endowed with improvement of electrochemical capabilities. Besides, they also showed outstanding Na-storage ability.
研究领域:
材料科学
·
储能
·
纳米技术
·
电化学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2018
·
IF 6.735
Yu Liu,Haoting Niu,Wei Gu,Xiaoyu Cai,Baodong Mao,Di Li,Weidong Shi
Exploration of highly active and noble-metal-free photocatalysts for high-efficiency photocatalytic water splitting is of great importance. Herein, a facile and effective in-situ hydrothermal method has been developed for preparation of CdS/MoS 2 heterostructures with a unique hollow microbox morphology for visible-light-driven water splitting into H 2 . The influence of MoS 2 is systematically investigated in terms of optical properties and photocatalytic activity of the CdS/MoS 2 microboxes by varying the concentration of sodium molybdate. Under visible-light irradiation (λ ≥ 420 nm), the CdS/MoS 2 microboxes exhibit superior photocatalytic H 2 evolution activity (1.36 mmol/g/h) compared to pure CdS microboxes (0.04 mmol/g/h), corresponding to an apparent quantum yield of 14.5% at 420 nm. Photocatalytic mechanism study proves that the MoS 2 nanosheets can serve as a co-catalyst and electron acceptor, for the effective promotion of electron transfer and separation of photogenerated charge carriers from CdS to further stimulate the surface H 2 evolution kinetics. Furthermore, the well-defined interior voids, low density and shell permeability of the hierarchical CdS/MoS 2 microboxes also contribute to the improvement of the photocatalytic performance.
研究领域:
材料科学
·
光催化
·
氢能
·
纳米材料
·
环境科学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Tao Shen,Feng Li,Zhenyun Zhang,Lei Xu,Junjie Qi
Monolayer MoS2, a direct bandgap transition metal dichalcogenide (TMD), has attracted worldwide attention in electronics and optoelectronics. However, the performance of photodetectors based on monolayer MoS2 is restricted to a weak optical absorption, narrow absorption range, and persistent photoconductance. Herein, benefiting from an easy solution process, high light absorption coefficient, and wide absorption range, environment-friendly CuInSe2 quantum dots (QDs) are hybridized with monolayer MoS2 for high-performance broadband photodetectors. Owing to the favorable type-II energy band alignment of MoS2/CuInSe2-QDs, the hybrid photodetector exhibits a broadband photoresponse from the ultraviolet to near-infrared region, with an ultrahigh photoresponsivity of 74.8 A/W at 1064 nm, and compared with those of the pristine MoS2 device, the photoresponsivity and specific detectivity in the ultraviolet–visible region were enhanced by about 30 and 20 times, respectively. Furthermore, the formed depletion region at the MoS2/CuInSe2-QDs interface can significantly increase the photoresponse speed, and the accumulated holes in the QD side induce a strong photogating effect to improve the photoresponsive characteristics of the hybrid photodetector. Our work opens up opportunities for fabricating high-performance monolayer TMD-based broadband photodetectors.
研究领域:
光电子学
·
纳米材料
·
量子点
·
光电探测器
·
二维材料
✓ 已验证
DOI
高影响因子
RSC Advances
·
2023
·Vol. 13
·期 18
·12344-12354
·
IF 3.9
Guanhua Yang,Xu Wang,Yihong Li,Zhiguo Zhang,Jiayu Huang,Fenghua Zheng,Qichang Pan,Hongqiang Wang,Qingyu Li,Yezheng Cai
Layered graphene and molybdenum disulfide have outstanding sodium ion storage properties that make them suitable for sodium-ion batteries (SIBs). However, the easy and large-scale preparation of graphene and molybdenum disulfide composites with structural stability and excellent performance face enormous challenges. In this study, a self-supporting network-structured MoS2/heteroatom-doped graphene (MoS2/NSGs-G) composite is prepared by a simple and exercisable electrochemical exfoliation followed by a hydrothermal route. In the composite, layered MoS2 nanosheets and heteroatom-doped graphene nanosheets are intertwined with each other into self-supporting network architecture, which could hold back the aggregation of MoS2 and graphene effectively. Moreover, the composite possesses enlarged interlayer spacing of graphene and MoS2, which could contribute to an increase in the reaction sites and ion transport of the composite. Owing to these advantageous structural characteristics and the heteroatomic co-doping of nitrogen and sulfur, MoS2/NSGs-G demonstrates greatly reversible sodium storage capacity. The measurements revealed that the reversible cycle capacity was 443.9 mA h g−1 after 250 cycles at 0.5 A g−1, and the rate capacity was 491.5, 490.5, 453.9, 418.1, 383.8, 333.1, and 294.4 mA h g−1 at 0.1, 0.2, 0.5, 1, 2, 5 and 10 A g−1, respectively. Furthermore, the MoS2/NSGs-G sample displayed lower resistance, dominant pseudocapacitive contribution, and faster sodium ion interface kinetics characteristic. Therefore, this study provides an operable strategy to obtain high-performance anode materials, and MoS2/NSGs-G with favorable structure and excellent cycle stability has great application potential for SIBs.
研究领域:
材料科学
·
储能
·
电化学
·
纳米材料
✓ 已验证
DOI
高影响因子
Sustainable Materials and Technologies
·
2021
·
IF 7.053
Haiyang Yu,Guoqiang Jiang,Jiangfeng Ni,Liang Li
As one of the appealing electrode materials for sodium-ion batteries, molybdenum disulfide (MoS 2 ) features great capacity and large interlayer space for Na + accommodation. However, the potential of MoS 2 anode has been largely restrained by the poorly stable cycling associated with significant volume swelling and dissolution loss of polysulfide species. In particular, the latter issue has been frequently overshadowed by the highlighted volume swelling problem. In this work, we have demonstrated a design of the three-dimensional architecture of core-shell nanosheets of MoS 2 -polypyrrole, based on hydrothermal growth of MoS 2 arrays and subsequent vapor-assisted coating of polypyrrole . The ultrathin polypyrrole shell is conductive and highly resilient, thus favoring the transportation of electrons but preventing polysulfides from dissolving into the electrolyte. When used as electrodes for sodium storage, MoS 2 -polypyrrole displays a high capacity of ~600 mAh g −1 at a rate of 0.2 A g −1 and robust stability over extended cycles, thereby demonstrating its potential in high-performance battery applications.
研究领域:
材料科学
·
储能
·
纳米技术
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）