Synthesis of Fe₃O₄/Pt Nanoparticles Decorated Carbon Nanotubes and Their Use as Magnetically Recyclable Catalysts

Figure 7

(a) Successive UV-vis spectra for the reduction of 4-nitrophenol into 4-aminophenol with the catalyst of m-MWNTs@Pt in the first cycle. (b) The linearized data for first-order analysis corresponding to (a). (c) The calculated values of kobs in the fifteen successive cycles of reduction and magnetic separation with the catalyst of m-MWNTs@Pt.

(a)

(b)

(c)