Open AccessEasy Synthesis Method of MoS2/TiO2 Nanostructure with Great Performance of Catalytic Activity Under Visible Light
Publication year - 2019
Publication title -
international journal of nanotechnology and nanomedicine
Language(s) - English
Resource type - Journals
ISSN - 2476-2334
DOI - 10.33140/ijnn.04.01.2
Subject(s) - photodegradation , photocatalysis , x ray photoelectron spectroscopy , methylene blue , raman spectroscopy , visible spectrum , anatase , materials science , rutile , doping , catalysis , nanostructure , nuclear chemistry , photochemistry , chemical engineering , nanotechnology , chemistry , organic chemistry , optoelectronics , optics , physics , engineering
In this study, TiO2 nanoparticles modified with MoS2 were synthesized using the low temperature hydrolysis method.Samples of pure TiO2 and samples of MoS2/TiO2 were prepared using different amounts of MoS2 (1.0% and 10.0% byweight). The samples were annealed at 500°C and 700°C and characterised by ICP-AES, XRD, Raman, FT-IR, TG,XPS and DR-UV-Vis spectroscopy. The results suggest that the MoS2 added during synthesis is a satisfactory sourceof Mo to produce doping of the TiO2 structure. In addition, the transformation of anatase phase to rutile is delayedwhen the concentration of Mo incorporated into the structure increases. Finally, the effectiveness of the synthesizedMoS2/TiO2samplesused as photocatalyst for the photodegradation of methylene blue dye under visible light irradiationwas investigated. TiO2 doped with MoS2 was shown to improve the degradation of methylene blue under visible light.There was found to be an optimal temperature and level of doping to achieve improved photocatalytic activity, in ourcase 10.0% MoS2/TiO2 at 700°C.