ABSTRACT

The search for new m aterials with newer properties is an endless process. The fabrication of bionanocomposites in this regard involves tremendous research that has an unpredictable capacity to reduce the environmental impacts of nanocomposite materials with nonbiodegradable polymer supports. A bionanocomposite material, which basically contains some constituents from the biological origin (biodegradable polymeric m aterials) and particles in the nanoscale size (1 -1 0 0 nm), is promising as a green sustainable m aterial (green nanocomposite) for the coming future. With the day-to-day increase in the world population, environmental pollution is also increasing and imposing various adverse effects on all living organisms through changes in the composition of three fundamental elements of life: water, air, and soil. There is an urgent need to develop new cost-effective and environment-friendly m aterials and methods to

reduce environmental load to ensure sustainability of life on earth. Bionanocomposite materials, due to their green and biodegradable nature, are the m ost promising m aterials for water remediation, that is, removal o f microorganisms, organic pollutants, heavy metals, etc., from contaminated water. The main aim of the present article is to review the fundamental chemistry of bionanocomposites and explore their application in the field of water remediation.