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Mostrando ítems 61-70 de 137
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, ...
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 ...
Síntese e caracterização de hidrogel para processo de fracionamento da lignina extraída do bagaço de cana-de-açúcar
(Universidade Federal de São Carlos, 2019-03-08)
Brazil is currently considered the largest producer of sugarcane in the world, which results directly in tons of lignocellulosic biomass residues. The use and recycling of these process residues would reduce the environmental ...
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 ...
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 ...
Viabilidade de queima de casca de eucalipto em fornos de cimento
(Universidade Federal de São Carlos, 2020-07-31)
Cement factories, have rotary kilns that use fuels, either fossil, coprocessed or renewable (biomass) and are capable of absorbing all the ash produced during the process, as well as allowing the raw material to be adapted ...
Influência da mescla de resinas uréia formaldeído e difenilmetano 4,4’- diisocianato (MDI) nas propriedades mecânicas e emissão de formaldeído de painéis de madeira aglomerada
(Universidade Federal de São Carlos, 2017-12-08)
Several studies take place in order to reduce and even extinguish formaldehyde use in its various applications. This is due to its classification as a carcinogen according to the International Agency for Research on Cancer ...
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 ...
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 ...
Caracterização da alumina anódica porosa modificada por plasma
(Universidade Federal de São Carlos, 2015-06-29)
In this study, the wettability of porous anodic alumina (PAA) surfaces modified by plasma was investigated. The porous anodic alumina films were grown on aluminum substrate using a two step anodization procedure in oxalic ...