3 documents found, page 1 of 1
Iron Recovery from Iron Ore Tailings by Direct Hydrogen Reduction at Low Temper...
Pinto,Paula S.; Milagre,Luisa E.; Moreira,Larissa C. M.; Rocha Junior,Hamilton P.; Salviano,Adriana B.; Ardisson,José D.; Parreira,Fabrício V.In this work, we describe a sustainable alternative to recover iron from two iron ore tailings (IOT) using hydrogen reduction at relatively low temperatures followed by magnetic separation. X-ray powder diffraction (XRD), inductively coupled plasma (ICP), atomic absorption (AA), Mössbauer, scanning electron microscopy (SEM/EDS), Raman and thermogravimetry (TG) analyses indicated that the Fe oxide present in the...
Application of Nickel Ferrite Nanoparticles in Adsorption of Amoxicillin Antibi...
Caetano,Patricia M. A.; Simões,Nathália M.; Pinto,Paula S.; Fernandez-Outon,Luis E.; Albuquerque,Adriana S.; Macedo,Waldemar A. A.; Ardisson,José D.According to the World Health Organization, amoxicillin (AMX) is the most widely consumed antibiotic in the world. Consequently, there is great interest in the development of new technologies that allow the removal of this type of contaminant, as exposure to antibiotic residues can cause a variety of adverse effects, such as toxicity and antimicrobial resistance. In this work, AMX adsorption from aqueous soluti...
Controlled Dehydration of Fe(OH)3 to Fe2O3: Developing Mesopores with Complexin...
Pinto,Paula S.; Lanza,Giovani D.; Ardisson,José D.; Lago,Rochel M.In this work, efficient adsorbents for β-lactam antibiotics based on mesoporous iron oxide containing surface [FeOx(OH)y] sites were produced by controlled precipitation of iron hydroxide and thermal treatment at 150, 200, 300 and 450 ºC (150FeOH, 200FeOH, 300FeOH and 450FeOH, respectively). Mössbauer, X-ray diffraction (XRD), thermogravimetry-mass spectrometry (TG-MS), Fourier transform infrared spectroscopy (...