Fabrication of a novel 3D E-Fe2O3-Pi-MoS2 film with highly enhanced carrier mobility and photoelectrocatalytic activity

Cong, Yanqing; Ding, Wenchen; Zhang, Wenhua; Zhang, Tongtong; Wang, Qi; Zhang, Yi

doi:10.1016/j.electacta.2020.135748

Cited by 8 publications

(1 citation statement)

References 72 publications

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“…Interestingly, the MoS 2 /Fe 2 O 3 composites are not examined thoroughly, regardless of their superior opto-electronic properties, which imply improved photocatalytic performance. Occasionally, some studies of MoS 2 /α-Fe 2 O 3 materials focus on their photoelectrochemical properties and their utilization in supercapacitors [18], water splitting systems [19], or the photo-electro-catalytic degradation of pollutants [20]. Additionally, the evolution of oxygen [21], or the production of photofuels, like H 2 production and hydrocarbons [22,23], has been reported.…”

Section: Introductionmentioning

confidence: 99%

Novel Bi-Functional MoS2/α-Fe2O3 Nanocomposites for High Photocatalytic Performance

Ibrahim,

Falara,

Sakellis

et al. 2024

ChemEngineering

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In this study, 3-dimensional molybdenum disulfide (MoS2) structures, integrated with hematite (α-Fe2O3) nanoparticles, were fabricated under a convenient two-step hydrothermal route. The fabricated photocatalytic nanocomposites consist of well-arranged MoS2 flakes, resembling spherical flower-like morphology, and the nanoparticulate α-Fe2O3 structures decorate the 3D network. By raising the α-Fe2O3 weight ratio, the composites’ specific surface area and morphology were not affected, regardless of the partial cover of the cavities for higher hematite content. Moreover, the crystallinity examination with XRD, Raman, and FTIR techniques revealed that the precursor reagents were fully transformed to well-crystalized MoS2 and Fe2O3 composites of high purity, as no organic or inorganic residues could be detected. The photocatalytic oxidation and reduction performance of these composites was evaluated against the tetracycline pharmaceutical and the industrial pollutant hexavalent chromium, respectively. The improvement in the removal efficiencies demonstrates that the superior photoactivity originates from the high crystallinity and homogeneity of the composite, in combination with the enhanced charge carriers’ separation in the semiconductors’ interface.

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