International Research Journal of Engineering and Technology (IRJET) Volume: 11 Issue: 01 | Jan 2024
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e-ISSN: 2395-0056 p-ISSN: 2395-0072
Review on Synthesis and Applications of Nanomaterial Molybdenum Disulphide (MOS2) and Photocatalysis Process PAVITHRA. B.N.1,2, PRAVEEN. B M1,*, ARATI C1, SUDHAKAR A.3, BOMMANNA K4 1Department of Chemistry, Srinivas University, Institute of Engineering & Technology, Mukka, Srinivas Nagar,
Mangaluru, Karnataka, India.
2 School of Engineering, Department of Chemistry, Presidency University, Itgulpura, Bengaluru, Karnataka, India. 3 Department of Chemistry, Raja Rajeswari College of Engineering, Ramohalli Cross, Kumbalagodu, Bengaluru,
Karnataka, India.
4 Assistant Professor, Department of Mechanical Engineering, APS College of Engineering, Bengaluru, Karnataka,
India. --------------------------------------------------------------------------***---------------------------------------------------------------------------Abstract: Research on the creation and use of nanomaterials has been done for a long time. Because of the contrasts between
the two chemical elements-Sulphur, an oxygen family element, and molybdenum, the base element—they have a range of desirable qualities. There are still a number of obstacles to overcome despite significant advancements in our understanding of the mechanisms underlying the biological characteristics and catalytic activity of molybdenum disulphide nanoparticles, as well as the procedures involved in their nucleation, development, and structure. The evolution of nano-materials has made it possible to modify a material's structure and form at the nano-scale level to achieve specific uses. To discriminate between metallic phases and semiconducting, also layered transition metal chalcogenides (TMDs), such as molybdenum disulfide (MoS2), and quasi two-dimensional (2D) materials like graphene and 2D honeycomb silicon were developed.. Because it can display a broad variety of properties as it moves from the bulk to the nano-scale. Among these, molybdenum disulfide (MoS2) is an intriguing multifunctional substance. MoS2 is a great material for post-silicon electronics on a single sheet because of its straight band-gap value of 1.9 eV. Its mobility is around 200cm2(Vs-1) at room temperature, and it has high on/off current ratio. MoS2's structure also contributes to two of its properties. It is a useful instrument for gas sensing because of its hexagonal structure, covalent connections between S-Mo-S atomic layers, and Van der Waals interactions between neighboring MoS2 layers. Because of its promising characteristics, MoS2 can be used in a variety of practical applications. Our goal in this work is to talk about the most recent synthesis techniques and how they can be used to create 2D MoS 2 materials. Photocatalytic materials that react to visible light have numerous significant uses, from energy storage and conversion to the processing of industrial waste. For all photocatalytic applications, molybdenum disulfide (MoS 2) and its derivatives are ideal because they have good stability and recyclability, when exposed to visible light it has more photocatalytic activity. Because of their superior physicochemical characteristics, MoS2-based materials have found extensive application in a variety of sectors, including organic transformation processes, environmental remediation, and wastewater treatment. This review centres on the basic characteristics of molybdenum Disulphide (MoS2), its current applications and unresolved issues, as well as important approaches to address problems pertaining to MoS2 use in photo catalysis. There is also a critical discussion of the use of MoS2 -based materials in visible-light-induced catalytic processes for the treatment of various pollutants, such as industrial, pharmaceutical, environmental, and agricultural waste. The review concludes by outlining MoS2's potential applications in both established and developing photo catalysis fields.
Keywords: Molybdenum disulphide (MoS2), transition metal dichalcogenides (TMDs), Photocatalysis. 1. Introduction Due to population expansion and the fast industrialization of developing countries, there is an increasing demand for energy worldwide, which is driving up the usage of fossil fuels and perhaps causing irreversible anthropogenic climate change. Photocatalytic technologies have shown a lot of promise in recent years for reducing environmental pollution and the energy issue [1]. The capacity of visible-light driven photo catalysis to efficiently harness the vast energy of solar radiation as a clean, inexpensive, and renewable driving force[2] is one of its primary advantages. Visible-light-active photo catalysts have attracted a lot of interest because they are very easy to create and recycle using fundamental chemical processes [3].
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