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Nano Trends – A Journal of Nano Technology & Its Applications

Amorphous Carbon Nanotube (ACNT), Two-dimensional Molybdenum Disulfide Nanosheets (MoS2) and Amorphous Carbon Nanotube-MoS2 Nanohybrids: A Brief Theoretical and Practical Analysis

  1. Binoy Bera

Abstract

Recently, carbon nanotube and MoS2 nanosheets have been showing great interest in the field of nanoscience and nanotechnology for its exceptional physical, optical and electronic properties. The synthesis procedure of crystalline carbon nanotube is immensely tough for which researchers are focused on amorphous carbon nanotube. Single layer MoS2 with direct band gap shows better semiconductor behavior such as photoluminescence, makes them more acceptable in optoelectronic applications in comparison with graphene, which is a zero-gap semiconductor material. In this paper, a review about the synthesis and applications of amorphous carbon nanotube were discussed. A simple low temperature chemical process was also used for synthesis of amorphous carbon nanotube. Characterizations of prepared samples were done by FE-SEM, x-ray diffraction and FT-IR measurement. Few properties of amorphous carbon nanotube have also been described in short. This paper also describes the synthesis procedure of MoS2 nanosheets by simple one-step hydrothermal. Hexaammonium heptamolybdate tetrahydrate and thiourea were used as principle material in hydrothermal method. Here hexaammonium heptamolybdate tetrahydrate and thiourea are acting as a source of molybdenum and sulfur respectively. Temperature and time plays a crucial role in hydrothermal synthesis of MoS2 nanosheets. Here nanosheets were prepared with 20 hrs time and temperature of 200°C. Furthermore, nanosheets were characterized by scanning electron microscope, x-ray diffraction, Fourier transformed infrared spectroscopy method. Finally amorphous CNT-MoS2 nanohybrid was synthesized by using hydrothermal method. Nanohybrids were characterized by using x-ray diffraction, field emission scanning electron microscope, high-resolution transmission electron microscope, energy-dispersive x-ray spectroscopy. Band gap of prepared hybrids were also calculated.

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