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International Conference on

Recent Trends in Environmental Sustainability

ESCON22/NMsB/26
Silver and aluminum doped magnetic nanoparticles: new fascinating materials for
electrocatalytic H evolution and photochemical degradation of organic dyes

Behramand Khan 1,2
1 Department of Chemistry, Islamia College University, Peshawar 25120, Khyber
Pakhtunkhwa, Pakistan
2 Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil
Correspondence: dr.behramand@icp.edu.pk

Abstract
We have synthesized two novel bi-metallic Ag-Fe (SF) and Al-Fe (AF) nanoparticles (NPs) by
co precipitation method. Mild and low cost synthesis method has led to the formation of super-
para magnets, exhibiting H2 evolution and photocatalytic degradation under solar light
irradiations. Advanced characterization techniques such as XRD, FTIR, TGA, DRS, BET,
Zetasizer, XPS, and SEM were utilized in order to investigate the microstructure and
morphology of as synthesized NPs. Average crystallite size calculated was ~23.88 nm (SF-
NPs) and 24.41 nm (AF-NPs) via XRD measurement whereas, SEM indicated the size ranged
from (45–83) nm. Super paramagnetic behaviour with saturation magnetization (Ms) of 128
and 52 emu/g was confirmed for SF and AF-NPs respectively. SF and AF-NPs showed a better
H-Evolution (HE) ability in presence of ethanol and methanol as sacrificial agent as compared
to pure samples. The synthesized NPs efficiently degraded MB and MG dye with satisfactory
yield product. The synthesized NPs were found cost effective, ecofriendly and catalytically
active in aqueous medium. The SF and AF-NPs showed 71, 83% and 92, 86% photocatalytic
degradation for MB and MG dyes under solar light irradiation. The better performance with
low cost synthesis and trivial toxicity ensured the importance of SF and AF NPs in various
practical applications at industrial level. These findings could open a gateway to various similar
studies for other heterogeneous NPs prepared through the same simple and easy synthesis route
with advanced applications.

Keywords: Bi-metallic nanoparticles, H-evolution, Dyes degradation

Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus

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