Catalytic reduction of 4-nitrophenol using CuO@Na 2 Ti(PO 4 ) 2 ⋅H 2 O.

This article presents the synthesis, property characterization and catalytic application of CuO-supported disodium titanium phosphate, (CuO@Na 2 Ti(PO 4 ) 2 ⋅H 2 O) for the reduction of industrial pollutant 4-nitrophenol (4-NP). A simple hydrothermal route was developed to synthesize CuO@Na 2 Ti(PO 4 ) 2 ⋅H 2 O catalyst (CuO@Na 2 TiP) from beach sand ilmenite. The prepared CuO@Na 2 TiP was characterized using X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, X-ray photoelectron spectroscopy, and nitrogen adsorption-desorption isotherms. The catalyst 12 wt.% CuO@Na 2 TiP showed the fastest reduction kinetics for 4-NP.