A study on rapid and stable catalytic reduction of 4-nitrophenol by 2-hydroxyethylamine stabilized Fe3O4@Pt and its kinetic factors

The successful development of efficient and stable catalysts for 4-NP reduction reactions is beneficial to the environment and ecology. Fe3O4@Pt exhibits excellent catalytic performance for 4-NP reduction reaction due to the synergistic effect between Fe and Pt. But its structure and catalytic performance are extremely unstable. Here, we utilized the small-scale organic compound 2-hydroxyethylamine as surfactant to construct a stable composite nanomaterial. Then investigated the influence of monochromatic light (650 nm, 808 nm and 980 nm) and temperature on the kinetics of 4-NP reduction reaction by 2-hydroxyethylamine stabilized Fe3O4@Pt. The results indicate that both temperature and monochromatic light radiation can affect kinetic regulation. Increasing temperature can promote the catalytic rate, while monochromatic light radiation can induce agglomeration and inhibit the catalytic rate. This study opens up a new way for developing and regulating catalysts for heterogeneous catalysis reactions.

Automated summary

The successful development of efficient and stable catalysts for 4-nitrophenol (4-NP) reduction reactions is important for environmental and ecological benefits. Fe3O4@Pt exhibits excellent catalytic performance for 4-NP reduction due to the synergistic effect between Fe and Pt, but suffers from instability. In this study, a stable composite nanomaterial is synthesized by utilizing the small-scale organic compound 2-hydroxyethylamine as a surfactant. The influence of monochromatic light and temperature on the kinetics of 4-NP reduction reaction by 2-hydroxyethylamine stabilized Fe3O4@Pt is investigated. The results show that both temperature and monochromatic light radiation have an impact on the kinetic regulation, with increased temperature promoting catalytic rate and monochromatic light radiation inducing agglomeration and inhibiting catalytic rate. This study provides a new approach for developing and regulating catalysts for heterogeneous catalysis reactions.