Fabrication of graphene nanoplatelets/MgAl-layered double hydroxide nanocomposites as efficient support for gold nanoparticles and their catalytic performance in 4-nitrophenol reduction
نویسندگان
چکیده
The catalytic reduction of 4-nitrophenol is considerable importance to a multitude applications and industries. present work introduces new catalyst (AuNP/GNP/MgAl-LDH) containing gold nanoparticles (AuNP) supported on graphene nanoplatelets (GNP) intercalated in Mg Al layered double hydroxides (MgAl-LDH) for the 4-aminophenol using NaBH4 as reducing agent. was characterised by FTIR, XRD, STEM, TEM, BET specific surface area. XRD analysis showed presence crystalline phases supports, while TEM demonstrated that MgAl-LDH provided uniform binding sites AuNPs prevented agglomeration. Similar reaction rate constant determined disappearance appearance 4-aminophenol. highest AuNP/GNP/MgAl-LDH, followed AuNP/MgAl-LDH AuNP/GNP. AuNP/GNP/MgAl-LDH found stable after five repeated cycles.
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ژورنال
عنوان ژورنال: Chemical Engineering Research & Design
سال: 2023
ISSN: ['1744-3563', '0263-8762']
DOI: https://doi.org/10.1016/j.psep.2023.04.051