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- Title
SIMPLE SYNTHESIS OF BLACK TiO<sub>2</sub> NANOFIBERS VIA CALCINATION IN INERT ATMOSPHERE.
- Authors
MYEONGJUN JI; EUNG RYONG KIM; MI-JEONG PARK; HEE YEON JEON; JAEYUN MOON; JONGMIN BYUN; YOUNG-IN LEE
- Abstract
Black TiO2 nanofibers have recently emerged as a promising material that has both advantages of black metal oxide and onedimensional nanostructure. However, current reduction-based synthesis approaches are not compatible with practical applications because these processes require high process costs, complicated processes, and sophisticated control. Therefore, it is still necessary to develop a simple and facile method that can easily introduce atomic defects during the synthesis process. This work suggests an electrospinning process with an antioxidant and subsequent calcination process for the facile synthesis of black TiO2 nanofibers. The synthesized black TiO2 nanofiber has an average diameter of 50.3 nm and a rutile structure. Moreover, this nanofiber represented a noticeable black color and a bandgap of 2.67 eV, clearly demonstrating the bandgap narrowing by the introduced atomic defects.
- Subjects
NANOFIBERS; BLACK shales; METALLIC oxides; ATMOSPHERE; RUTILE
- Publication
Archives of Metallurgy & Materials, 2022, Vol 67, Issue 4, p1481
- ISSN
1733-3490
- Publication type
Article
- DOI
10.24425/amm.2022.141078