[HTML][HTML] Aplicação de óxidos de ferro nanoestruturados como adsorventes e fotocatalisadores na remoção de poluentes de águas residuais

MF Silva, EAG Pineda, R Bergamasco - Química Nova, 2015 - SciELO Brasil
New techniques for treating wastewater, particularly the removal or degradation of organic
pollutants and heavy metals, among other pollutants, have been extensively studied. The …

Properties of PVA hydrogel wound‐care dressings containing UK propolis

RN Oliveira, GB McGuinness… - Macromolecular …, 2016 - Wiley Online Library
Burns pose a potential threat to health, and often require dressings. PVA hydrogels present
many characteristics of ideal dressings, but do not have any intrinsic antimicrobial …

Synthesis and characterization of iron/niobium composites: Catalyst for dye wastewater treatments

CC Rezende, JL Neto, AC Silva, VM Lima… - Catalysis …, 2012 - Elsevier
A series of niobium/iron composites, Nb2O5/Fe (III)(% Fe (w/w)= 0.0, 2.0, 2.4 and 7.6), was
prepared by conventional co-precipitation method. Powder XRD, 57Fe Mössbauer …

Formation of catalytic active sites in iron modified activated carbons from agriculture residues

T Tsoncheva, N Velinov, R Ivanova, I Stoycheva… - Microporous and …, 2015 - Elsevier
Agriculture residues (grape seeds, peach, apricot and olive stones) were used as a
precursor of activated carbons with tunable textural characteristics and relatively low surface …

[HTML][HTML] Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles

M Silveira, IMB Silva, AG Magdalena - Cerâmica, 2021 - SciELO Brasil
Fe3O4 nanoparticles were synthesized and functionalized with (3-aminopropyl)
trimethoxysilane (APTMS) and chitosan, forming Fe3O4-NH2 and Fe3O4-NH2-chitosan …

Characterization of calcined red soil applied in the removal of methylene blue dye from wastewater to produce a hybrid pigment

DL Silva, N Balaba, DFL Horsth, S Jaerger… - Clay Minerals, 2023 - cambridge.org
We obtained natural red soil (RS), rich in iron, from the region of Palotina in the state of
Paraná, Brazil. The RS sample was purified by suspension in water and sieved to remove …

Synthesis of composites and study of the thermal behavior of sugarcane bagasse/iron nitrate mixtures in different proportions

CP da Silva, AV dos Santos, AS Oliveira… - Journal of Thermal …, 2018 - Springer
This study aims to assess the thermal properties of mixtures of sugarcane bagasse and iron
(III) nitrate in the following proportions (mass/mass): 1/2, 1/1, and 2/1, using …

Removal of orange G dye by manganese oxide nanostructures

RPD Victor, LLM Fontes, AA Neves… - Journal of the Brazilian …, 2019 - SciELO Brasil
Two types of manganese oxide were investigated for the removal/degradation of Orange G
(OG) dye in aqueous solution. One manganese oxide (pyrolusite) was obtained …

Eletrodos de fto modificados por eletrodeposição direta de ouro: produção, caracterização e aplicação como sensor eletroquímico

R Oliveira, FL Pissetti, AMS Lucho - Química Nova, 2016 - SciELO Brasil
Chemically modified electrodes have been studied to obtain new and better electrochemical
sensors. Transparent conductive oxides, such as fluorine-doped tin-oxide (FTO), shows …

[HTML][HTML] Optimization of the production parameters of composites from sugarcane bagasse and iron salts for use in dye adsorption

CP da Silva, MO da Guarda Souza… - The Scientific World …, 2019 - ncbi.nlm.nih.gov
In this study, mechanical mixtures of sugarcane bagasse and iron salts (nitrate, acetate, or a
mixture of both) were subjected to thermal decomposition for producing iron oxide and …