A Review on the Synthesis and Application of Silver/Iron Oxide/Carbon Composite

Chong, Eleasha Hui Ting (2021) A Review on the Synthesis and Application of Silver/Iron Oxide/Carbon Composite. Final Year Project (Bachelor), Tunku Abdul Rahman University College.

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Abstract

This thesis focuses on reviewing the methodology used to fabricate nanocomposite which include Ag/C nanocomposite, Fe3O4/C nanocomposite and a proposed Ag/Fe3O4/C nanocomposite as a result of the review of the first two binary nanocomposites. The proposed Ag/Fe3O4/C nanocomposite materials is recommended for its potential to be utilised for an array of applications ranging from the water purification to antibacterial applications while being magnetically recoverable. Water contamination by different pollutants including heavy metals and dyes is a contemporary issue faced by many countries and it is becoming a major environmental problem and a treat to the wellbeing of the life on Earth as a whole. One way to enhance chemical connectivity between Ag, Fe3O4 and carbon is via the surface modification of nanoparticles using a coating technique which been shown to improve sorption capability of nanoparticles because surface coating phenomenon helps in converting for example the closely packed cubic geometry of magnetic nanoparticles into compact. A wide range of material such as carbon have been employed to support Ag NPs. The aim of the work was to establish a synthetic approach suitable to produce Ag/Fe3O4/C with future industrial scalabilities taken into account. The multifunctional properties such as superparamagnetic due to iron oxide and antimicrobial properties due to silver nanoparticles and the excellent adsorptive properties of carbon should endow the Ag/Fe3O4/C with attractive features in terms of real-world application. This is particularly the case for antimicrobial applications against water borne microbes. The characteristics of the nanocomposite, the characterizations methods of the nanocomposite and incorporation of Green Chemistry concept were also reviewed and discussed as an integral of this thesis.