期刊
JOURNAL OF NANOMATERIALS
卷 2019, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2019/4825432
关键词
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资金
- Brazilian funding agency FAPEPI [001/2018]
- Brazilian funding agency CAPES [183995]
- Brazilian funding agency CNPq [305632/2016-7, PVE 400397/2014-5]
- CNPq [303752/2017-3]
A nanoheterostructure of titanate nanotubes decorated with anatase nanoparticles (TiNT@AnNP) was synthesized for the first time by a microwave-assisted hydrothermal one-pot reaction. Characterization by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, high-resolution transmission electron microscopy, selected-area electron diffraction, and X-ray photoelectron spectroscopy showed highly crystalline and nanometer-sized TiNT@AnNP. The synthesized TiNT@AnNP degraded an anionic dye (Remazol blue) more efficiently under UV-visible light (380-780nm) than a commercial anatase-TiO2 precursor. We correlated this increased efficiency of photodegradation to the large surface area and the efficient separation of photoinduced electron-hole pairs. Finally, we propose a mechanism to highlight the influence of a microwave-assisted hydrothermal synthesis in the production of TiNT@AnNP for environmental applications.
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