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Biogenic synthesis of PdNCs embedded α-Fe2O3 microspheres using Myrtus cumini L. leaf extract and a Box-Behnken optimization of its Fenton-like catalytic activity

Paper Topic: 
Green Chemistry and Sustainable Development
 
Volume: 
 
Issue: 
 

Pages :
410 - 421

Corresponing Author: 
Venkatachalam CD
 
Authors: 
Venkatachalam CD., Sengottian M., Kandasamy S., Balakrishnan K.
Paper ID: 
gnest_03133
Paper Status: 
Published
Date Paper Accepted: 
21/09/2019
Paper online: 
07/10/2019
Abstract: 

Microspheres (MSs) of paramagnetic iron oxide (α-Fe2O3) embedded with palladium nanocubes (PdNCs) were biosynthesized using Myrtus cumini L. leaf extract. The synthesized PdNCs embedded α-Fe2O3 microspheres were characterized using FTIR, XRD and SEM/EDX. The FTIR spectrum of the Myrtus cumini L. leaf extract confirmed the presence of phenol, ester and amine groups that were involved in the bio-reduction of PdCl2 to PdNCs. SEM/EDX revealed that the PdNCs with size range of 15–250 nm were present on the surface of the synthesized microspheres. Box-Behnken Design (BBD) was employed for optimization of Methyl Orange (MO) decolorization using α-Fe2O3MSs and PdNCs embedded α-Fe2O3MSs at pH (1, 2 and 3), catalyst dosage (1, 3 and 5 g L-1) and reaction irradiation time (30, 60 and 90 min). It was found that PdNCs embedded α-Fe2O3MSs had maximum decolorization of 96.56 % at pH 1.72, catalyst dosage 2.69 g L-1 and irradiation time 68.34 min.

Keywords: 
biogenic synthesis, Myrtus cumini L. leaf extract, PdNCs embedded α-Fe2O3 microspheres, Box-Behnken Design, methyl orange
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