Titanium dioxide based micromotors: applied to the removal of emerging contaminants

• Grant number: 18/20439-0
• Support Opportunities: Scholarships in Brazil - Master
• Start date: April 01, 2019
• End date: October 03, 2020
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
• Principal Investigator: Sidney José Lima Ribeiro
• Grantee: Leonardo Marchiori
• Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
• Associated research grant: 15/22828-6 - Pushing the boundaries of optical fibers: from photonics to optogenetics and environmental monitoring, AP.SPEC
• Associated scholarship(s): 19/16608-4 - Titanium dioxide based micromotors: applied to the removal of emerging contaminants, BE.EP.MS

Abstract

The improper disposal of female hormones in waste water treatment plant (WWTP) have been in the spotlight of several researches in the last decades, mainly because the improper disposal of such substances occasion disturbances in biological systems and disrupt the human health. However, the elimination of these hormones in WWTP still limited, primarily by conventional treatment methods, that are inefficient against these emerging pollutants (EP), and to solve the hormone problem, this project aims to purify the water in WWTP from EP by using micromotors based on titanium dioxide (TiO2) and Au in association of Ni, chitosan and tyrosinase. The micromotors that will be used are made with simple techniques (atomic layer deposition and spin coating) and characterized by X rays diffraction, Fourier transforms in infrared spectroscopy, scanning electron microscopy, atomic force microscopy, optical microscopy, hydrogen nuclear magnetic resonance and viscosity. These characterization techniques help us to finding the best synergy between the micromotors components, leading to micromachines to speed up the removal of emerging contaminants. Shorten, with the titanium dioxide micromotors system it is expected to eliminate most of the emergent pollutant, 17±-ethinyl estradiol (EE2), in a fast, efficient, specific, non-toxic and yet renewable way. (AU)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

MARCHIORI, Leonardo. Motor's production and optimization based on microneedles. 2021. Master's Dissertation - Universidade Estadual Paulista (Unesp). Instituto de Química. Araraquara Araraquara.