Physico-chemical study polyethylene glycol adsorption on niobium oxide

• Grant number: 07/00677-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: April 01, 2007
• End date: September 30, 2008
• Field of knowledge: Physical Sciences and Mathematics - Chemistry
• Principal Investigator: Flávio Aparecido Rodrigues
• Grantee: Juliana dos Santos Venâncio
• Host Institution: Pró-Reitoria de Pesquisa, Pós-Graduação e Extensão e Assuntos Comunitários. Universidade de Mogi das Cruzes (UMC). Mogi das Cruzes , SP, Brazil

Abstract

This goal of the project is to characterize the adsorption process of water-soluble polymer (polyethylene glycol) on the surface of niobium oxide (Nb2O5). The fundamental aspects of adsorption process, such as surface solid characterization in solution will be studied. The important variables are: pH-dependence on surface charge density, ionic strength and the nature of electrolytes. Furthermore, the quantitative analysis of polymer adsorption will be studied. (AU)