Controlling the growth of ultrathin MoS2 nanosheets/CdS nanoparticles by two-step solvothermal synthesis for enhancing photocatalytic activities under visible light

Alomar, Muneerah; Liu, Yueli; Chen, Wen; Fida, Hussain

doi:10.1016/j.apsusc.2019.03.014

Cited by 63 publications

(16 citation statements)

References 58 publications

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“…Figure 4c gives the heterojunction structure of TM0.5. The lattice spacing of 0.23 and 0.62 nm is assigned to (103) crystal plane of Ti 3 C 2 and (110) crystal plane of MoS 2 , respectively [24,47]. The intimate-contact heterojunction promotes the transfer and separation of photogenerated carriers and holes at the heterojunction interface [43].…”

Section: Resultsmentioning

confidence: 99%

“…The relatively narrow bandgap (Eg = 1.8 eV), unique optical properties and layered structure of MoS 2 nanosheets have attracted more and more attention [15][16][17][18]. MoS 2 has been coupled with several two-dimensional (2D) materials and semiconductors, such as TiO 2 [19], graphene oxide (GO) [20], g-C 3 N 4 [21], SnO 2 [12], Bi 2 WO 6 [22], Bi 2 O 2 CO 3 [23], and CdS [24], in order to improve the efficiency of photocatalytic degradation and hydrogen production. It has been proved that higher concentration of methyl orange (MO) (30 mg/L) organic pollutants can be degraded in 60 min under the visible light irradiation by MoS 2 /CdS nanocomposites [24].…”

Section: Introductionmentioning

confidence: 99%

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2D/2D Heterojunction of R-scheme Ti3C2 MXene/MoS2 Nanosheets for Enhanced Photocatalytic Performance

et al. 2020

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Combination of two-dimensional (2D) materials and semiconductors is considered to be an effective way for fabricating photocatalysts for solving the environmental pollution and energy crisis. In this work, novel 2D/2D heterojunction of R-scheme Ti 3 C 2 MXene/MoS 2 nanosheets is successfully synthesized by hydrothermal reaction. The photocatalytic activity of the Ti 3 C 2 MXene/MoS 2 composites is evaluated by photocatalytic degradation and hydrogen evolution reaction. Especially, 0.5 wt% Ti 3 C 2 MXene/MoS 2 sample exhibits optimum methyl orange (MO) degradation and H 2 evolution rate of 97.4% and H 2 evolution rate of 380.2 μmol h −1 g −1 , respectively, which is attributed to the enhanced optical absorption ability and increased specific surface area. Additionally, Ti 3 C 2 MXene coupled with MoS 2 nanosheets is favorable for improving the photocurrent response and reducing the electrochemical impedance, leading to the enhanced electron transfer of excited semiconductor and inhibition of charge recombination. This work demonstrates that Ti 3 C 2 MXene could be a promising carrier to construct 2D/2D heterojunction in photocatalytic degradation and hydrogen evolution reaction.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

2D/2D Heterojunction of R-scheme Ti3C2 MXene/MoS2 Nanosheets for Enhanced Photocatalytic Performance

et al. 2020

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“…37-1492). 22 In addition, there are two new diffraction peaks near at 2θ = 8.6 and 17.6 (indicated by line circle and dash circle, respectively) are observed in the MWP-MoS 2 , and a new peak at 2θ = 8.5 (indicated by line circle) is found in the PP-MoS 2 . According to a previous report, 23 and A 1g mode is in respect of the out-plane sulfur vibrations.…”

Section: Friction Testsmentioning

confidence: 93%

PEG‐assisted solvothermal synthesis of MoS₂ nanosheets with enhanced tribological property

Chen

2020

Lubrication Science

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Molybdenum disulfide (MoS2) nanoparticles are widely used as oil additives for obtaining low friction and wear. In this article, MoS2 nanosheets with ultrathin shape and structure defects were prepared by a facile solvothermal method with the aid of polyethylene glycol (PEG 200). The products were analysed by X‐ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), X‐ray photoelectron spectroscopy (XPS), and Fourier transform infrared (FTIR). Results indicated that PEG 200 played a crucial role as the shape controller in the formation of different MoS2 structures. Interestingly, the prepared MoS2 perform excellent in improving the friction‐reducing and antiwear properties of oils. More importantly, the lubricating behaviour of the obtained MoS2 nanosheets as oil additives was still effective in the harsh condition of heavy load and high temperature. Further, the excellent lubrication performance of the prepared MoS2 was discussed based on the exfoliation into individually ultrathin nanosheets and nanosized debris, and the formation of MoS2‐based tribofilm inside the wear tracks.

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“…Based on the relationship between absorbance and photon energy, the optical bandgap energy of the RP/MoS 2 (2 : 1) hybrid and commercial MoS 2 can be calculated by using Equation :

true (α h v)^{2} = normalA (h v - E_{normalg})

…”

Section: Resultsmentioning

confidence: 99%

Mosaic Red Phosphorus/MoS₂ Hybrid as an Anode to Boost Potassium‐Ion Storage

Gao

Liu

et al. 2019

ChemElectroChem

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Low‐cost, non‐toxic, and abundant red phosphorus (RP) with high gravimetric discharge/charge capacity has been recognized as a promising anode candidate for potassium‐ion batteries (KIBs). However, the large volumetric change, severe agglomeration, and rapid capacity attenuation during discharge/charge cycles are major obstacles for practical applications in potassium‐ion storage. In order to eliminate such intrinsic deficiencies, a mosaic RP/MoS2 hybrid is designed and prepared by using a simple ball‐milling method and subsequently used as an anode for KIBs. The hybrid with a certain ratio of 2 : 1 can achieve a sustainable K+ storage capability (246.6/239.6 mAh g−1 for 100 cycles at 50 mA g−1), considerable long‐cycle performance (120.5/118.0 mAh g−1 at 1000 mA g−1 after 500 cycles), and good rate capability. The cycling performance is attributed to a pseudocapacitive effect, controllable interlayer spacing of MoS2, and enhanced conductivity. In view of the scalable synthesis process and considerable cycling durability, the RP/MoS2 hybrid may shed light on the rational design of novel anode alternatives for KIBs.

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Controlling the growth of ultrathin MoS2 nanosheets/CdS nanoparticles by two-step solvothermal synthesis for enhancing photocatalytic activities under visible light

Cited by 63 publications

References 58 publications

2D/2D Heterojunction of R-scheme Ti3C2 MXene/MoS2 Nanosheets for Enhanced Photocatalytic Performance

2D/2D Heterojunction of R-scheme Ti3C2 MXene/MoS2 Nanosheets for Enhanced Photocatalytic Performance

PEG‐assisted solvothermal synthesis of MoS₂ nanosheets with enhanced tribological property

Mosaic Red Phosphorus/MoS₂ Hybrid as an Anode to Boost Potassium‐Ion Storage

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Controlling the growth of ultrathin MoS2 nanosheets/CdS nanoparticles by two-step solvothermal synthesis for enhancing photocatalytic activities under visible light

Cited by 63 publications

References 58 publications

2D/2D Heterojunction of R-scheme Ti3C2 MXene/MoS2 Nanosheets for Enhanced Photocatalytic Performance

2D/2D Heterojunction of R-scheme Ti3C2 MXene/MoS2 Nanosheets for Enhanced Photocatalytic Performance

PEG‐assisted solvothermal synthesis of MoS2 nanosheets with enhanced tribological property

Mosaic Red Phosphorus/MoS2 Hybrid as an Anode to Boost Potassium‐Ion Storage

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Product

Resources

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PEG‐assisted solvothermal synthesis of MoS₂ nanosheets with enhanced tribological property

Mosaic Red Phosphorus/MoS₂ Hybrid as an Anode to Boost Potassium‐Ion Storage