Preparation and photocatalytic properties of PtCo@C-TiO2 composites

In this article, PtCo@C composite materials were fabricated by high-temperature calcination and chemical reduction with ZIF-67 as the template. Additionally, PtCo@C-TiO2 materials were prepared by incorporating different contents and sizes of anatase TiO2. The materials were characterized and analyzed by SEM and XRD. From the characterization results, both PtCo@C and PtCo@C-TiO2 materials maintained the dodecahedral shape of the original ZIF-67 particles, which was conducive to preserving the specific surface area of the materials and ensuring a relatively high catalytic activity. The impact of different loadings of TiO2 on the photocatalytic performance of the composite materials was investigated. The experimental results indicated that the composite material with a TiO2 dosage of 0.125 ml and a particle size of 5 nm exhibited the best degradation effect.