Fabrication of zirconium oxide-hydroxyapatite nanocomposite for green preparation of m-phenylenediamine

Abstract EN

Pt-ZrO2-HAP nanocomposites with 3 wt% of Pt and 25 wt % of Hydroxyapatite were synthesized by a sol- gel method to produce a uniform hollow nanospheres.

This nanocompoite was then used in the photocatalytic preparation of m-phenylenediamine.

Zirconia hollow nanospheres, Pt-ZrO2 hollow nanospheres, Hydroxyapatite (HAP) nanoparticles were prepared for comparison reasons.

Specific surface area values of ZrO2, Pt-ZrO2 and Pt-ZrO2-HAP were 250, 270, 350 m2/g respectively.

The photocatalytic performance of the nanocomposites was studied by photo-reduction of m-nitroaniline to m-phenylenediamine under visible light.

Pt-ZrO2-HAP Photocatalyst has the highest photocatalytic performance in the photo-reduction of m-nitroaniline to m-phenylenediamine compared to Zirconia hollow nanospheres and Pt-ZrO2 hollow nanospheres.