Work

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

Year: 2026

Type: article

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.

Source: Discover Nano

DOI: 10.1186/s11671-026-04476-y

Authors: Mohammad Mavvaji, Rahman Hosseinzadeh, Shahin Ehsani

Institution: University of Mazandaran

Language: English

Topic: Nanomaterials for catalytic reactions

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: gold

Estimated APC paid: $2,090