Open AccessFungal biomolecules assisted biosynthesis of Au–Ag alloy nanoparticles and evaluation of their catalytic property
Author(s) -
Tripathi Ravi Mani,
Gupta Rohit Kumar,
Bhadwal Akhshay Singh,
Singh Priti,
Shrivastav Archana,
Shrivastav B.R.
Publication year - 2015
Publication title -
iet nanobiotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.366
H-Index - 38
eISSN - 1751-875X
pISSN - 1751-8741
DOI - 10.1049/iet-nbt.2014.0043
Subject(s) - alloy , nanoparticle , materials science , catalysis , fourier transform infrared spectroscopy , spectroscopy , transmission electron microscopy , biomolecule , nanomaterials , infrared spectroscopy , dynamic light scattering , reducing agent , nuclear chemistry , chemical engineering , nanotechnology , chemistry , organic chemistry , metallurgy , physics , quantum mechanics , engineering
The catalytic reduction of methylene blue was studied using biosynthesised gold–silver (Au–Ag) alloy nanoparticles (NPs). The fungal biomass of Trichoderma harzianum was used as a reducing and stabilising agent in the synthesis of Au–Ag alloy NPs. The synthesised NPs were well characterised by UV–vis spectroscopy, dynamic light scattering, X‐ray diffraction, transmission electron microscopy, energy dispersive X‐ray spectroscopy and Fourier transform infrared spectroscopy. The plausible synthesis mechanism involved in the formation of Au–Ag alloy NPs was also discussed with diagrammatic representation. A series of experiments was performed to investigate the catalytic activity of the as‐prepared Au–Ag alloy NPs and found that the alloy NPs show excellent catalytic activity.