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Otimização e validação de metodologias analíticas em GC-MS aplicadas à biodegradação de poluentes orgânicos persistentes e óleo essencial de pimentas
(Universidade Federal de São Carlos, 2019-02-26)
Recently, a large number of compounds have been synthesized in order to bring comfort and convenience to everyday life. These products, however, produce a large amount of daily waste that are released into the environment ...
Estudo químico de plantas com atividades sobre insetos sociais
(Universidade Federal de São Carlos, 2007-12-05)
The chemical control of pest, which uses conventional insecticides, shows a number of advantages to agriculturists due to its efficiency, lower cost and facility of use in related to others. However, the utilization of the ...
Preparação e caracterização de blendas de PANI/ABS
(Universidade Federal de São Carlos, 2009-03-16)
Polyaniline (PANI) chemical synthesis was monitored in situ by means of electrochemical impedance, open circuit potential (Voc) and mass variation. We verify that the final properties of the polymer could be practically ...
Estudo mecânico-quântico ab initio da propriedade fotoluminescente em compostos PbWO4, BaWO4, SrWO4 e dos processos de intercalação e difusão de Li no composto Li1+xTi2O4
(Universidade Federal de São Carlos, 2008-04-18)
Computational simulation by means of quantum-mechanical calculations is becoming an increasingly important tool in scientific research of materiaIs due the great advances in the performance of computers and in the development ...
Estudo dos processos de eletrodeposição de filmes finos de Se, ZnSe e PbS
(Universidade Federal de São Carlos, 2008-03-13)
This work describes studies on the underpotential deposition (UPD) of selenium, zinc, as well for Zn/Se systems deposited on polycrystalline Pt electrodes in acid solutions. The effects of Zn presence in the Se dissolution ...
Estrutura e propriedade fotoluminescente do titanato de bário e cálcio obtido pelo método de polimerização de complexos (MPC)
(Universidade Federal de São Carlos, 2008-06-16)
The synthesis and characterization of Ba1-xCaxTiO3 (BCT) for x = 5; 10; 15; 20; 40 e 80 % mol that crystallizes in a perovisquita structure were studied in this work. The BCT material was synthesized by CPM which allows ...
Estudo do potencial eletrostático e da termodinâmica de agregação de surfactantes por simulações de dinâmica molecular
(Universidade Federal de São Carlos, 2018-03-13)
Due to the amphiphilic character, the surfactants tend to be adsorbed at the water surface and, in concentrations larger than the critical micellar concentration, they self-assembling in solution with the purpose to reduce ...
Alguns aspectos químicos envolvidos na interação Hypsipyla grandella (broca-do-mogno e Swietenia macrophylla (Mogno)
(Universidade Federal de São Carlos, 2002-11-08)
The interaction between Hypsipyla grandella (Mahogany bore) and Swietenia macrophylla was studied in order to understand the chemical and ecological aspects involved on this process. H. grandella is a shoot borer lepdoptera ...
Investigação das propriedades ópticas e fotocatalíticas de materiais a base de fosfato de prata
(Universidade Federal de São Carlos, 2019-08-05)
The semiconductor-based photocatalytic degradation of synthetic dyes has been considered a promising approach in wastewater treatment. The main objective in this doctoral thesis was the investigation on structural, ...
Estratégias espectroanalíticas para análise química inorgânica de plantas medicinais
(Universidade Federal de São Carlos, 2014-12-01)
This thesis describes the development of analytical procedures based on direct solid analysis by high-resolution continuum source atomic absorption spectrometry in graphite furnace (SS-HR-CS GF AAS) and aqueous solutions ...