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- W4311682318 abstract "ZnTe powders were synthesized by a hydrothermal process at 180 °C. Pure powdered zinc and tellurium were used as precursors. Aqueous solutions of three different reducing agents (NaOH, KOH and NH <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>4</inf> OH) were used as reaction medium. The effect of the type of reducing agent on the crystallographic, optical and morphological properties of the synthesized materials was studied.The X-ray diffraction results showed the presence of the zincblende-type cubic phase of ZnTe in all the synthesized powders, with the exception of the one synthesized with NH <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>4</inf> OH, which presented a mixture of ZnTe and ZnTeO <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</inf> phases. Scanning electron microscopy (SEM) images showed that the synthesized powders have particles of irregular size and morphology. The determination of the band gap energy of the materials was carried out by means of UV-Vis-DRS studies, obtaining values close to those reported in the literature for ZnTe (2.2 eV), with the exception of the material synthesized with NH <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>4</inf> OH that presented a bandgap energy of 2.01 eV. ZnTe powders showed good photocatalytic activity for the degradation of malachite green, MG, obtaining a maximum degradation percentage of 99.2% at 300 min of evaluation. Therefore, these ZnTe materials showed promising properties to be applied as photocatalysts." @default.
- W4311682318 created "2022-12-28" @default.
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- W4311682318 date "2022-11-09" @default.
- W4311682318 modified "2023-09-27" @default.
- W4311682318 title "Photocatalytic degradation of Malachite Green dye from ZnTe powders under visible light" @default.
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- W4311682318 doi "https://doi.org/10.1109/cce56709.2022.9975882" @default.
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