Photo-Fenton-like oxidation of organic substances is one the key advanced processes based on reversible Fe2+↔Fe3+ transition and generation a strong oxidant ·OH in presence H2O2 currently considered as promising method for purification polluted aqueous media. However, absence effective stable photocatalysts this process, operating under action visible light, necessitates exploratory studies, ma...

A eletrodissolução de ligas de Cu-Zn, de diferentes composição química (CuZn37 e CuZn39Pb3) foi estudada em solução tampão de acetato, pH 5, através de medidas de potencial de circuito aberto e voltametria cíclica, sob condições estáticas e dinâmicas. A menor resistência à corrosão detectada nestas ligas, comparativamente ao Cu puro, foi atribuída à estrutura da camada anódica formada ZnO.x H 2...

Copper oxide (CuO) nanoparticles (NPs) were decorated on reduced graphene (rGO) through the effective synthetic route method. Powder X-ray diffraction, Fourier transform infrared, ultraviolet-visible absorption, and scanning electron microscopy techniques used to analyze chemical structure, functional groups, absorbance, morphology. Under visible light illumination, CuO/rGO nanocomposites have ...

Standard sacrificial template synthesis allows metal oxide nanotubes to be produced from ZnO nanowires. In spite of their high interest in several technological fields, the low surface area of these nanotubes is a drawback for most applications. Here we report for the first time the sacrificial template synthesis of stainless steel wire-mesh (SSWM) supported metal oxides of high technological i...

The present study aimed at studying the acceleration of the bioactive layer on the surface of ferrimagnetic glass ceramic with a basic composition 40Fe2O3-15P2O5-20SiO2-5TiO2 through the addition of 20% of different types of metal oxides like MgO or CaO or MnO or CuO or ZnO or CeO2. SEM, EDAX, and ICP were applied to present the results of the study. SEM and EDAX measurements indicated the pres...

In this study, cerium oxide and multi-walled carbon nanotubes nanocomposite were incorporated into the ceramic electrode (CeO2–MWCNTs/CCE) as a renewable for electrocatalytic purposes. To demonstrate capability of fabricated electrode, determination tamoxifen an important anticancer drug with differential pulse voltammetry technique was evaluated in details. Linear range, limit detection sensit...