Synthesis and photocatalytic property of an intercalated nanomaterial H2NiTi4O10/TiO2

H2NiTi4O10/TiO2 intercalated compound is fabricated by successive intercalation reactions of H2NiTi4O10 with an n-C6H13NH2/C2H5OH mixed solution and an acid TiO2 sol, followed by irradiating with a high-pressure mercury lamp. H2NiTi4O10, a layered perovskite type compound with TiO2-loading, exhibits a high photocatalytic activity for degradation of methyl orange under ultraviolet and/or visible light irradiation. The experimental results shows that methyl orange is degraded with the decomposition ratio of 59% by using H2NiTi4O10/TiO2 as photocatalyst under visible light (λ>420 nm) irradiation for 120 min. The H2NiTi4O10/TiO2 compound possesses higher photocatalytic activity than the commercial titania powder (Degussa P-25) which shows the decomposition ratio only 24% under the same condition.