Magnetic layered double hydroxide supported gold nanoparticles as a robust and recyclable catalyst for the reduction of 4- nitrophenol and oxidation of alkenes and benzyl alcohols
Abstract
In this study, we report the synthesis of a novel magnetic nanocomposite, Fe₃O₄@SiO₂@MgAl-LDH@Au, as an efficient and environmentally benign catalyst for both reduction and oxidation reactions. The mesoporous nanocomposite was well-identified using FT-IR, XRD, EDX, TEM, TGA, FESEM, VSM, BET and XPS analyses. Its catalytic performance was first evaluated in the reduction of 4-nitrophenol to 4-aminophenol, monitored by UV–Vis spectroscopy, which confirmed its remarkable activity in the presence of sodium borohydride as a reducing agent. Furthermore, the catalyst was tested in the oxidation of organic substrates, exhibiting moderate to high conversion and selectivity for benzyl alcohols and alkenes. Notably, Fe 3 O 4 @SiO 2 @MgAl-LDH@Au demonstrated excellent recoverability and reusability over multiple cycles, with only a slight decrease in catalytic activity.
Fields of Study & Subjects
Nanomaterials for catalytic reactions
Asymmetric Hydrogenation and Catalysis
Gold and Silver Nanoparticles Synthesis and Applications
Publication details
- Journal / source
- Discover Nano
- Publisher
- Springer Science and Business Media LLC
- Volume
- 21
- Issue
- 1
- Pages
- 48–48
- Publication date
- 19 February 2026
- Language
- EN