Abstract
In the preceding section, we have discussed the basic characteristics of nanomaterials, their properties, as well as the basic science behind the fact that nanomaterials behave differently from their bulk form. The discussion has also been done regarding the basic features of different microscopes and their working principle. We now have an idea regarding the features of different textile dyes, their toxicity, classifications, and properties. Not only that, the two main ways, like catalysis and adsorption, that help remove dyes from water have also been discussed. We are also now familiar with the basic structures and properties of a few effective dye removers like carbon nanostructure, oxides, and others. As a continuation of all the previous discussions, this chapter deals with the efficiencies/performances of a few potential materials in removing different textile dyes from water. This chapter considers mainly the performance of materials in removing dyes through catalysis and adsorption. We have taken only those materials whose structures and properties we have discussed in the preceding section. The results related to the performance of materials in removing different dyes from water have been taken from outside literature as well as from our own experimental results. It has been shown that the dye removing efficiency of the materials depends upon the material itself, its structure, surface area, porosity as well as numbers of effective adsorption sites.