ABSTRACT

Photocatalysis, which exploits renewable solar energy to trigger chemical reactions via oxidation and reduction, can be classified as a sustainable technology that offers solutions to ecological problems. This chapter evaluates the important properties of iron oxide nanomaterials. It highlights not only recent developments in their application to wastewater treatment, but also seeks to address the issues which appear to limit their large-scale field application. The chapter includes a detailed description of synthesis methods, properties and characterization. Nanotechnology holds out the promise of immense improvements in manufacturing technologies, electronics, telecommunications, health and even environmental remediation. The production and utilization of a diverse array of nanomaterials include structures and devices with sizes ranging from 1 to 100 nm, and the display of unique properties not found in bulk-sized materials. Wastewater treatment and reuse is essential to safeguard human health and to protect environmental ecosystems. Nanomaterials, with their unique physical and chemical properties, have a tremendous potential for contaminant removal.