MoS2/Ag nanocomposites for electrochemical sensing and photocatalytic degradation of textile pollutant

• Published in: Journal of materials science. Materials in electronics Vol. 30; no. 4; pp. 3711 - 3721
• Main Authors: Krishnan, Unni, Kaur, Manjot, Singh, Kulwinder, Kaur, Gurpreet, Singh, Paviter, Kumar, Manish, Kumar, Akshay
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.02.2019; Springer Nature B.V
• Subjects: Catalysis; Catalytic activity; Characterization and Evaluation of Materials; Chemical synthesis; Chemistry and Materials Science; Detection; Diffraction patterns; Dyes; Electron diffraction; Electrons; Materials Science; Methylene blue; Molybdenum disulfide; Nanocomposites; Optical and Electronic Materials; Organic chemistry; Photocatalysis; Photodegradation; Silver; Transmission electron microscopy; X ray powder diffraction; X-ray diffraction
• ISSN: 0957-4522; 1573-482X
• DOI: 10.1007/s10854-018-00653-7

MoS 2 /Ag nanocomposite has been successfully synthesized by hydrothermal–wet chemical method. MoS 2 /Ag nanocomposites were characterized by powder X-ray diffraction (XRD), transmission electron microscopy and selected area electron diffraction. XRD patterns confirmed the presence of MoS 2 and Ag phases in the synthesized composite. Photocatalytic ability of the nanocomposite evaluated against methylene blue (MB) and Novacron Red Huntsman (NRH) dye under normal light source for 80 min. Catalytic loading (1 g/L) lead to maximum degradation rate of 77.9% and 77.5% for MB and NRH dye respectively. Nanocomposites exhibited sensing ability against nitrobenzene. The sensing capability was evaluated using cyclic voltammetry electrochemical technique. Mechanisms of the photocatalytic activity and electrochemical sensing are also explained herewith.