Fast photocatalytic degradation of an organic dye and photoluminescent properties of Zn doped In(OH)3 obtained by the microwave-assisted hydrothermal method

Crystalline zinc-doped indium hydroxide structures were prepared by the rapid and efficient microwave-assisted hydrothermal (MAH) method. X-ray diffraction (XRD), field emission gun-scanning electron microscopy (FEG-SEM), photoluminescence (PL) and UV–visible (UV–vis) spectroscopy were used to chara...

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Detalhes bibliográficos
Principais autores: Tavares, Marileide L.A., Lovisa, Laura Ximena, Araújo, Vinícius Dantas, Silva, Elson Longo da, Li, Maximo Siu, Nascimento, Rubens Maribondo do, Paskocimas, Carlos Alberto, Delmonte, Maurício Roberto Bomio, Motta, Fabiana Villela da
Formato: article
Idioma:English
Publicado em: Elsevier
Assuntos:
Indium hydroxide
Zinc
Doping
Microwave
Photocatalytic activity
Endereço do item:https://repositorio.ufrn.br/jspui/handle/123456789/27892
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Descrição
Resumo:Crystalline zinc-doped indium hydroxide structures were prepared by the rapid and efficient microwave-assisted hydrothermal (MAH) method. X-ray diffraction (XRD), field emission gun-scanning electron microscopy (FEG-SEM), photoluminescence (PL) and UV–visible (UV–vis) spectroscopy were used to characterization the materials. FEG-SEM images revealed that pure In(OH)3 samples and Zn-doped samples exhibit nanocubic morphologies with a wide range of particle sizes. Relative intensities of PL emissions decreased as the Zn ion concentration increased from 0 to 4 mol%. UV–vis spectra indicate that Zn ion doping caused a band gap decrease with increased doping of 0% to 4% Zn, respectively, from 5.15 eV for 4.96 eV. Samples with Zn in the crystal lattice showed better photocatalytic activity and degradation of the RhB dye after 16 min of UV exposure

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