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Now showing items 31-40 of 42
Obtenção de heteroestruturas SnO2/Nb2O5 e aplicação em sistemas de interesse ambiental
(Universidade Federal de São Carlos, 2021-03-19)
The population increase has caused several environmental problems such as contamination of aquatic bodies by organic compounds and the emission of CO2 in the atmosphere. An alternative to mitigate these impacts is Heterogeneous ...
Produção e caracterização de nanoestruturas de carbono por PECVD
(Universidade Federal de São Carlos, 2021-03-19)
In recent decades, studies and discoveries related to carbon nanostructures have been intensified, mentioning carbon nanotubes, graphene and their derivatives. These structures have unique physical and chemical properties, ...
Influência da adição de tensoativos em redes de sílica para adsorção de corantes
(Universidade Federal de São Carlos, 2022-06-10)
Synthetic dyes, normally used industrially, when discarded incorrectly can cause damage to the environment and human life, inhibiting the passage of light in water bodies and hindering the photosynthesis of plants and algae ...
Desenvolvimento de um sensor eletroquímico com nanopartículas de ouro e ftalocianina de cobre para a detecção de metais potencialmente tóxicos
(Universidade Federal de São Carlos, 2021-06-30)
Using the LbL self-assembly technique, an ITO electrode was modified with gold nanoparticles stabilized with PAH and copper phthalocyanines, for the detection of cadmium (Cd) and lead (Pb). Using the UV-Vis technique it ...
Funcionalização química de nanofibrilas de celulose com haleto orgânico e hidrogenossulfato
(Universidade Federal de São Carlos, 2022-12-19)
Belonging to the chemical group of carbohydrates and considered the main component of the plant cell wall, ensuring protection and support for the development of vegetables, cellulose is the most abundant biopolymer on ...
Propriedades fotocatalíticas de óxidos mistos preparados por oxidação eletrolítica a plasma (PEO)
(Universidade Federal de São Carlos, 2021-08-27)
The pollution of drinking water due to industrial activity in recent decades can have consequences for the supply and health of the population. Advanced oxidative processes (AOPs) such as heterogeneous photocatalysis are ...
Sistema de liberação de substâncias a partir de filmes nanotexturizados de TiO2
(Universidade Federal de São Carlos, 2021-08-30)
Researches involving drug delivery systems based on TiO2 nanotubes suggest a great potential as a platform to be used in the biomedical area, mainly due to its biocompatibility. The drugs loaded in the nanostructures also ...
Nanocristais de celulose provenientes de fibras amazônicas com potencial aplicação na produção de nanocompósitos
(Universidade Federal de São Carlos, 2021-11-19)
Among all the natural polymers, we can highlight the use of cellulose, a mutable and profuse biopolymer in nature, which has enormous chemical variability due to the functionalization of its various hydroxyl groups. It can ...
Aplicação de Plasma Electrolytic Oxidation (PEO) para síntese de óxidos anódicos sobre alumínio em eletrólito contendo íons Ag+
(Universidade Federal de São Carlos, 2020-03-27)
The growing concern with the quality of food by consumers, has led the industry to new technologies to guarantee this condition. Antimicrobial films appear as active packaging that, in addition to protecting and conditioning ...
Investigação do fenômeno oscilatório na síntese de filmes de Nb2O5 em PEO.
(Universidade Federal de São Carlos, 2024-03-21)
This research focuses on the process of plasma electrolytic oxidation (PEO), a type of anodization that has been extensively studied due to the wide range of applications its coatings provide to materials, such as corrosion ...