CuO Rapid Synthesis with Different Morphologies by the Microwave Hydrothermal Method

AUTOR(ES)

Quirino, Max Rocha, Lucena, Guilherme Leocárdio, Medeiros, Jackson Andson, Santos, Ieda Maria Garcia dos, Oliveira, Matheus José Cunha de

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

11/10/2018

RESUMO

CuO structures were synthesized by microwave hydrothermal treatment using two different mineralizing agents (NaOH and NH4OH) and were evaluated as photocatalysts. The materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) surface area analysis. The XRD patterns indicated the formation of the monoclinic phase in both samples with 13.78 and 14.23 nm crystallite size. SEM analysis showed different agglomerates morphologies based on the mineralization agent employed. The CuO nanostructure synthesized with NH4OH presented agglomerated like-plates which results in a spherical shape, whereas the material synthesized with NaOH presented an agglomerate of larger plates. Both samples showed photocatalytic activity against RNL azo dye. The quasi-spherical shape CuO material reached 93 % of the discoloration.

Documentos Relacionados

• Rapid Preparation of (BiO)2CO3 Nanosheets by Microwave-Assisted Hydrothermal Method with Promising Photocatalytic Activity Under UV-Vis Light
• Synthesis and characterization of α-SnWO4 powders obtained by microwave-assisted hydrothermal method
• The effects of CuO nanoparticles on properties of self compacting concrete with GGBFS as binder
• Influence of the pH on Al2O3:CuO pigments prepared by a polymeric precursor method
• Positron Annihilation Spectroscopy Study on Annealing Effect of CuO Nanoparticles