Enhanced Photocatalytic Performance of Surface-Modified TiO2 Nanofibers with Rhodizonic Acid

The improvement of the photocatalytic performance of TiO 2 nanofibers (NFs), prepared by electrospinning, is achieved by surface modification with the rhodizonic acid (RhA). The condensation reaction between hydroxyl groups from TiO 2 NFs and RhA is accompanied by the red-shift of optical absorption...

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Bibliographic Details
Published in:Advanced fiber materials (Online) 2020-04, Vol.2 (2), p.118-122
Main Authors: Sun, Yijun, Mwandeje, Jackson Beja, Wangatia, Lodrick M., Zabihi, Fatemeh, Nedeljković, Jovan, Yang, Shengyuan
Format: Article
Language:English
Subjects:
Acids
Catalytic activity
Charge transfer
Chemistry and Materials Science
Complex formation
Crystal structure
Doppler effect
Electron microscopes
Energy harvesting
Hydroxyl groups
Kinetics
Ligands
Materials Engineering
Materials Science
Methylene blue
Molecular biology
Morphology
Nanofibers
Nanoscale Science and Technology
Optical properties
Photocatalysis
Polymer Sciences
R&D
Red shift
Renewable and Green Energy
Research & development
Research Article
Scanning electron microscopy
Spectrum analysis
Textile Engineering
Titanium dioxide
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Summary:The improvement of the photocatalytic performance of TiO 2 nanofibers (NFs), prepared by electrospinning, is achieved by surface modification with the rhodizonic acid (RhA). The condensation reaction between hydroxyl groups from TiO 2 NFs and RhA is accompanied by the red-shift of optical absorption due to interfacial charge transfer (ICT) complex formation. Crystal structure, morphology, and optical properties of unmodified and surface-modified TiO 2 NFs were analyzed. The photocatalytic performance of prepared samples has been examined through degradation of organic dye methylene blue. Superior photocatalytic activity of surface-modified TiO 2 NFs with RhA is attributed to their enhanced optical properties, i.e., the ability to harvest the photon energy in the visible spectral range.
ISSN:2524-7921
2524-793X
DOI:10.1007/s42765-020-00037-9