Synthesis of hexagonal and cubic super-microporous niobium phosphates with anion exchange capacity and catalytic properties

Abstract

Super-microporous hexagonal niobium phosphate synthesized using neutral surfactant (S⁰I⁰ mechanism) and cubic structure with cationic surfactant (S⁺X^-I⁺); the hexagonal niobium phosphate possesses an excellent anion exchange capacity (6.3 mmol g⁻¹) and high product selectivity towards 4-naphthaquinone (88.6%) in the oxidation of 1-naphthol in presence of aqueous H₂O₂.