Construction of flower-like MoS2/Fe3O4/rGO composite with enhanced photo-Fenton like catalyst performance

Mu, Dongzhao; Chen, Zhe; Shi, Hongfei; Tan, Nguan Soon

doi:10.1039/c8ra06537c

Cited by 29 publications

(13 citation statements)

References 58 publications

(52 reference statements)

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“…For the Fourier transform infrared (FTIR) spectra, the characteristic peaks at 1280 cm −1 accorded with COC group. [27] The intensive band at 588 cm −1 in the MoS 2 /Fe 3 O 4 spectrum could also accord with the FeO stretching vibration (Figure S7, Supporting Information). For Figure S8 (Supporting Information), it was observed that peaks for MoS 2 /Fe 3 O 4 red-shifted compared with MoS 2 , indicating the mutual interaction between MoS 2 and Fe 3 O 4 .…”

Section: Preparation and Characterization Of Mos 2 /Fe 3 Omentioning

confidence: 66%

Magnetic Composite Rapidly Treats Staphylococcus aureus‐Infected Osteomyelitis through Microwave Strengthened Thermal Effects and Reactive Oxygen Species

Jin

Zheng

Liu

et al. 2022

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It is difficult to effectively treat bacterial osteomyelitis using photothermal therapy or photodynamic therapy due to poor penetration of light. Here, a microwave (MW)‐excited magnetic composite of molybdenum disulfide (MoS2) / iron oxide (Fe3O4) is reported for the treatment of bacteria‐infected osteomyelitis. In in vitro and in vivo experiments, MoS2/Fe3O4 is shown to effectively eradicate bacteria‐infected mouse tibia osteomyelitis, due to MW thermal enhancement and reactive oxygen species (ROS) (1O2 and ·O2–) production under MW radiation. In addition, the mechanism of MW heat generation is proposed by MW network vector analysis. By the density functional theory and finite element method, the ROS generation mechanism is proposed. The synergy or conductive network between dielectric MoS2 and magnetic Fe3O4 can reach both enhancement of the dielectric and magnetic attenuation capability. In addition, abundant interfaces are generated to enhance the attenuation of electromagnetic waves by MoS2 and Fe3O4, introducing multiple reflections and interfacial polarization. Therefore, MoS2/Fe3O4 has excellent MW absorption ability based on the synergy or conductive network between MoS2 and magnetic Fe3O4 as well as multiple dielectric reflections and interfacial polarization.

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Section: Preparation and Characterization Of Mos 2 /Fe 3 Omentioning

confidence: 66%

Magnetic Composite Rapidly Treats Staphylococcus aureus‐Infected Osteomyelitis through Microwave Strengthened Thermal Effects and Reactive Oxygen Species

Jin

Zheng

Liu

et al. 2022

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“…The results of the RhB degradation are in the order: acidic > neutral > alkaline condition. The experimentresults indicate that the pH has a significant influence on the photocatalytic degradation for the RhB …”

Section: Resultsmentioning

confidence: 95%

Hydrogen Evolution and Wastewater Treatment of Hydrangeal‐like Catalyst Decroatedby the NiS Nanosheet and PdNanoparticle

et al. 2020

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Multifunctional catalysts with photodegradation of organic contaminants and electrocatalytic hydrogen evolution are extremely urgent. In this work, a unique MoS2 hollow microsphere with a diameter of 1.5 μm was fabricated without adding any spherical template by an improved hydrothermal process. Interestingly, the MoS2 hollow microspheres with introduction of the NiS and Pd nanoparticles greatly restrain recombination rates of electron‐hole pairs, resulting in the outstanding photocatalytic activity. The RhB removal rates of the MoS2 hollow microsphere and the NPMS composites were 7 and 10 times higher than that of pure MoS2, respectively, for the high concentration of macrocyclic contaminants under visible‐light illumination. Furthermore, the optimal robust NPMS hybrids exhibite a lower overpotential of 100 mV (at 10 mV cm−2) and a smaller Tafel slope of 50 mV dec−1. The unique structure composite catalysts possess more exposed active sites and defects to enhance the catalytic activity for HER and removal of organic pollution.

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“…3 e) were attributed to Mo 3d 5/2 and Mo 3d 3/2 , respectively. The component at 225.7 eV corresponded to S 2s in the Mo–S bond [ 31 ], and the peak at 235.6 eV corresponded to Mo (VI) [ 32 , 33 ]. In Fig.…”

Section: Resultsmentioning

confidence: 99%

Superparamagnetic MoS2@Fe3O4 nanoflowers for rapid resonance-Raman scattering biodetection

Zhang

Chu

Jin

et al. 2022

J Mater Sci: Mater Electron

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Sensors for rapid and reliable detection of biomolecules are crucial for clinical medical diagnoses. Here, a rapid, ultra-sensitive, magnetic-assisted biosensor based on resonance Raman scattering at MoS 2 @Fe 3 O 4 composite nanoflowers is presented. Raman shifts and X-ray photoelectron spectra indicated that the composite was formed via Fe–S covalent bonds. Convenient magnetic separations could be performed because of the superparamagnetic Fe 3 O 4 nanoparticles. MoS 2 E 1 2g and A 1g Raman peaks were used as probe signals for anti-interference immunoassays. The probe unit of the immunoassay also included goat anti-human IgG molecules that were used as the target analyte. Au substrates coupled with the goat anti-human IgG were used as capture units to form sandwich biosensors. Because of the magnetic enrichment, the detection limit was improved by three orders-of-magnitude and the detection time was reduced from 1.5 h to 1 min. Sandwich biosensors using MoS 2 @Fe 3 O 4 nanoflowers as Raman probes could be very promising sensors for proteins, antigens, and other immunogenic biopolymers, as well as for corpuscular viruses and cells.

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Construction of flower-like MoS₂/Fe₃O₄/rGO composite with enhanced photo-Fenton like catalyst performance

Abstract: Flower-like MoS2/Fe3O4/rGO composites have been constructed, which exhibit highly efficient visible-light photocatalytic performance for removing of RhB in the presence of H2O2.

Cited by 29 publications

References 58 publications

Magnetic Composite Rapidly Treats Staphylococcus aureus‐Infected Osteomyelitis through Microwave Strengthened Thermal Effects and Reactive Oxygen Species

Magnetic Composite Rapidly Treats Staphylococcus aureus‐Infected Osteomyelitis through Microwave Strengthened Thermal Effects and Reactive Oxygen Species

Hydrogen Evolution and Wastewater Treatment of Hydrangeal‐like Catalyst Decroatedby the NiS Nanosheet and PdNanoparticle

Superparamagnetic MoS2@Fe3O4 nanoflowers for rapid resonance-Raman scattering biodetection

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