Euphorbia leaf extract-assisted sustainable synthesis of Au NPs supported on exfoliated GO for superior activity on water purification: reduction of 4-NP and MB

Environmental Science and Pollution Research International
Naser SabaghniaSadegh Rostamnia

Abstract

In the present work, the effect of graphene oxide (GO) architecture and synthesis of gold nanoparticles (AuNPs) on the surface of GO by using Euphorbia leaf extract was investigated. The as-synthesized catalyst was utilized for reduction of 4-nitrophenol (4-NP) and methylene-blue (MB). The ethanol/water extract of the leaves of Euphorbia was found as a non-toxic, suitable, eco-friendly natural reducing agent in one-step generation of Au nanoparticles onto the GO. The catalyst was characterized by different analysis such as atomic force microscopy, powder X-ray diffraction, field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, SEM-mapping, transmission electron microscopy, and atomic absorption spectrometry. The high catalytic performance of the surfactant exfoliated gold-GO (SE-AuNPs/GO) towards the reduction of 4-NP to 4-aminophenol (4-AP) and reduction of MB to leucomethylene blue (LMB) under mild conditions, in water and at room temperature, was exhibited. Graphical abstract.

References

Aug 25, 2010·ACS Nano·Daniela C MarcanoJames M Tour
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Mar 27, 2013·Colloids and Surfaces. B, Biointerfaces·A AnnamalaiP T V Lakshmi
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Apr 16, 2015·Chemical Communications : Chem Comm·Teresa AdityaTarasankar Pal

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Citations

Jun 9, 2020·Environmental Science and Pollution Research International·Mahima SharmaMonika Joshi
Sep 9, 2021·Environmental Science and Pollution Research International·Targol TeymourianElaheh Kowsari

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