The use of nano scale ZVI offers several advantages:
1. High Reactivity: The small size and large surface area of ZVI nanoparticles enhance their reactivity compared to bulk iron, making them more effective in catalytic processes.
2. Versatility: Nano scale ZVI can be used in various catalytic and environmental applications, from pollutant degradation to hydrogen production.
3. Economic Feasibility: Iron is an abundant and relatively inexpensive material, making ZVI a cost-effective option for large-scale applications.
