Abstract

The world is currently facing critical water and energy issues due to the growing population and industrialization, calling for methods to obtain potable water, e.g., by photocatalysis, and to convert solar energy into fuels such as chemical or electrical energy, then storing this energy. Energy storage has been recently improved by using electrochemical capacitors and ion batteries. Research is actually focusing on the synthesis of materials and hybrids displaying improved electronic, physiochemical, electrical, and optical properties. Here, we review molybdenum disulfide (MoS2) materials and hybrids with focus on synthesis, electronic structure and properties, calculations of state, bandgap and charge density profiles, and applications in energy storage and water remediation.

Highlights

  • Two-dimensional layered nanomaterials have drawn much research consideration from their interesting physicochemical properties such as the extraordinary electrical, optical, and physical characteristics that arose from their ultra-thin construction and their quantum size impact

  • The results indicated that the synthesized ­MoS2 nanosheets had a petal-like morphology

  • We critically reviewed the recent literature investigating molybdenum disulfide ­(MoS2) material as a subclass of transition metal dichalcogenides, possessing a unique two-dimensional layered structure

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Summary

Introduction

Two-dimensional layered nanomaterials have drawn much research consideration from their interesting physicochemical properties such as the extraordinary electrical, optical, and physical characteristics that arose from their ultra-thin construction and their quantum size impact. Bi2S3/MoS2/TiO2 showed the highest photocatalytic efficiency of methylene blue degradation under sunlight up to 99% after 4 min compared to bare ­TiO2, ­MoS2, and ­Bi2S3 This developed performance was ascribed to the large surface area and the construction of double Z-scheme heterojunction, which increased the active sites and charge separation efficiency (Drmosh et al 2020). The nanocomposite with 50 wt% of ­MoS2 demonstrated the highest performance for methylene orange photodegradation and reached to 90% after 60 min when exposed to visible light This excellent efficiency was owed to the high specific surface area of the ­Cu2S snowflake structure, which improved the light-trapping ability and enhanced charge separation in the composite heterojunction. Reversible transport of ions within electrolyte related to the multilayered M­ oS2, while conductive

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Conclusion

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