The nano-technologies and nano-materials draw incredible consideration in recent years. Nano-particles are the particles having size ranging from 1 to 100 nm. The nano-particles are usually categorized into different classes, and their classification is based on size, shape, material production, and dimension. They show superior properties, i.e., enhanced reactivity, high BET surface area, sensitiveness, and steadiness as compared to their bulk materials. In this chapter, different approaches of synthesizing nano-particles, including sol gel, chemical vapor deposition, and biosynthesis are talked over. In the treatment of wastewater, nano-particles offer a possibility for effective adsorption of contaminants organic as well as inorganic. This chapter presents an overview on nano-particles, their types, characteristics, synthetic approaches, and applications in the field of surface chemistry.
Part of the book: Engineered Nanomaterials