APPLICATION OF SODIUM TITANATE BASED NANOMATERIALS FOR DYE ADSORPTION

Abstract

The application of sodium titanium-based nanomaterials for the adsorption of dyes deserves to be invested by an innovative and low-cost technique. Also, contamination of effluents by used dyes can cause damage and public health due to their toxicity and recalcitrance. So, an end of environmental impact impacted by these effluents, it is necessary or the development of new technologies of removal. An alternative to remedy this problem is found in the application of the adsorption technique through the use of sodium titanium nanomaterials. These factors do not have surface areas, spaces between and charge transfer rates of efficient interfaces, or what significantly increases the adsorbents. Thus, the present work aimed to synthesize sodium titanium nanomaterials and to investigate their use for the removal of dyes or gum from the aqueous medium. The materials were synthesized using the hydrothermal method, without the use of a structured guide, using titanium dioxide as the starting material in the alkaline medium (10M NaOH). These materials were studied, using their use in the removal of organic pollutants in aqueous medium, where it verified the formation of fibrillar morphology for all the materials used. Through the X-ray diffraction technique, it was confirmed the establishment of four crystallographic phases of lamellar titanates, predominantly, of disodium titanate, with monoclinic symmetry. In short, the results proved that there was a formation of titanate nanomaterials. Tests to remove methylene blue are promising for the adsorptive activity of the captured materials concerning the starting oxide, removing up to 81% of the dye in 30 min. Titanium nanomaterials are efficient to remedy aquatic ecosystems contaminated by this organic pollutant; in addition, the collected data become a reference for future studies.