LAUSR

Abstract Porous molybdenum disulfide (MoS2) has a wide range of applications in catalysis and adsorption. Herein, we developed a new method, namely the sulfuration of fibrous NaNH4Mo3O10·H2O in hydrothermal-gas phase system at 120 °C using thiourea as sulfur source to prepare fibrous and porous MoS2, and then the sulfidization products were further calcined at 550 °C for increasing specific surface area. This method can keep the original fibrous shape of the precursors, and avoid the disintegration of precursors in sulfuration reaction under hydrothermal or high temperature gas phase conditions. The new material has perfect pore structure (˜123.7 m2/g of specific surface area, ˜0.375 cm3/g of pore volume). It shows excellent adsorption abilities for methyl orange (MO) in acidic solution and desorption properties in alkaline solution. The obtained porous MoS2 has also the advantages of easy recovery through ordinary vacuum filtration due to its micron particle size, therefore, it has wide application prospects in catalysis and adsorption.