Use of siloxane-polyether hybrids as effective adsorbents for removal of dyes

• Grant number: 17/18705-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: February 01, 2018
• End date: February 28, 2018
• Field of knowledge: Engineering - Materials and Metallurgical Engineering
• Principal Investigator: Eduardo Ferreira Molina
• Grantee: Cintia dos Santos Alves
• Host Institution: Pró-Reitoria Adjunta de Pesquisa e Pós-Graduação. Universidade de Franca (UNIFRAN). Franca , SP, Brazil

Abstract

Demand for adsorbents with excellent sorption capacity is increasingly required by industry and research topic in academia. This demand is due to concern about the global environmental protection and water sources in which the effective removal of oils, organic solvents and dyes of water is of significant importance. In this context, the use of hybrid materials can be the answer for the future. The objective of this project is the use of adsorbents based on amino-alcohol-silicate hybrid, able not only to retain different molecules in its structure, but also binding to specific sites and selective separation. In this context, the use of hybrid materials of the amino-alcohol-silicate as efficient adsorbents allow the use of such systems for treating industrial effluents. This project proposes the use of hybrids of the amino alcohol-silicate class to remove an anionic dye. From the experimental results, evaluate the adsorption capacity and proposed mechanisms for removal of the dye will be the focus of this work. For this, different characterization techniques available at the University of Franca will be used as thermal analysis (TG) Infrared-spectroscopy (FTIR), scanning electron microscopy (SEM). Furthermore, in situ adsorption experiments involving the hybrid matrix and dye solution are carried out by UV-vis (CARY 60) coupled with an immersion probe, allowing improved sensitivity and fast data collection. (AU)