Pd Nanoparticles Decorated Zn-Based MOF-Catalyzed Hydrogenation of Nitrophenol

Due to their large surface area, high surface-to-volum ratio, catalytic ability, and excellent mechanicaland chemical properties, ultrafine noble metals Pd, Pt, etc., have been extensively stadied. Pdnanoparticles have been condidered to be one of the most promising candidates for catalysis. Thesenanoparticles are mainly used in heterogeneous catalysis such as dehalogenation and reduction reactions.Researchers have developed and used a large number of supports to improve the catalytic performance ofmetal nanoparticles by reducing agglomeration and thus increasing reusability [۱-۲].In this study, a heterogeneous catalyst (pd@Zn-MOF) was synthesized by the decoration of palladiumnanoparticles on a Zn-based MOF and identified by TEM, SEM, XRD and EDS analysis. The synthesizedcatalyst was used to reduce ۴-nitrophenols to ۴-aminophenol. Due to higher solubility and thermalstability of ۴-nitrophenol, ۴-nitrophenol is considered a highly toxic water pollutant and its removal formthe environment is of interest [۳]. The effects of various factors such as solvent type, temperature andcatalyst amount were investigated. The results showed that the role of MOF in the distribution ofpalladium nanoparticles in the activation sites responsible for the catalytic activity cannot be ignored.Finally, the possibility of recycling the catalyst was investigated. This catalytic system is a feasible andoptimal method for the reduction of nitrophenolic compounds

کلیدواژه ها:

Pd Nanoparticles ، Hydrogenation ، Catalyst ، MOF