Nanomaterials for the Removal of Dyes from Wastewater

Abstract

Dyes are frequently used to color objects in industries such as textiles, tanning, leather, cosmetics, and many more. These industries release huge amounts of wastewater that pose a risk to the environment and human well-being. Therefore, dye removal from contaminated water has received significant attention. For this purpose, adsorption and photocatalysis have been proven to be efficient and cost effective for removing dyes than the conventional biological, chemical, and physical processes. The utilization of nanomaterials through a combination of photocatalytic and adsorption has emerged to be an efficient method. The present chapter provides a comprehensive out-looks of dye removal treatment including their classification, toxicity, and dye elimination methods with especial focus on nanomaterials. Based on the reported date, it is established that nanomaterials have demonstrated significant dye removal potential to treat industrial wastewater.