Scholarship 23/18116-7 - Polímeros - BV FAPESP
Advanced search
Start date
Betweenand

Hierarchical structure of cellulose ether porous materials for controlled oxygen release

Grant number: 23/18116-7
Support Opportunities:Scholarships abroad - Research Internship - Doctorate
Start date until: September 01, 2024
End date until: August 31, 2025
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
Principal Investigator:Denise Freitas Siqueira Petri
Grantee:Camila Gruber Chiaregato
Supervisor: Tatiana Budtova
Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Institution abroad: Centre De Mise En Forme Des Matériaux, France  
Associated to the scholarship:22/06284-0 - Cellulose ether, biomass and calcium peroxide based cryogels for the removal of drugs and oxygen release in aqueous medium, BP.DR

Abstract

Solutions for water scarcity due to contamination are one of the Sustainable Development Goals of the United Nations. In this sense, systems that allow the controlled release of oxygen have gained attention due to the possibility of recovering polluted areas. Calcium peroxide, when it reacts with water, is used as a source of oxygen. In this proposal, we will develop porous hybrid materials, aerogels, based on ethyl cellulose, kapok fiber, and calcium peroxide. The novelty lies in the establishment of hierarchical structures between the polymer and kapok fiber, an innovation until now unparalleled in the existing literature. Aerogels with low density, high porosity, and surface area will be produced by CO2 supercritical drying. The porous materials will be characterized by scanning electron microscopy (SEM), N2 adsorption/desorption isotherms, apparent density, and mechanical compression. The oxygen release kinetics, resulting from the immersion of the hybrid aerogels in water, will be evaluated.

News published in Agência FAPESP Newsletter about the scholarship:
More itemsLess items
Articles published in other media outlets ( ):
More itemsLess items
VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)

Please report errors in scientific publications list using this form.