Journal
ADVANCED FIBER MATERIALS
Volume 2, Issue 2, Pages 118-122Publisher
SPRINGERNATURE
DOI: 10.1007/s42765-020-00037-9
Keywords
TiO2 nanofibers; Surface modification; Rhodizonic acid; Interfacial charge transfer complex; Crystal structure; Photocatalytic performance
Funding
- National Key Research and Development Program of China [2016YFA0201702/2016YFA0201700]
- Shanghai Natural Science Foundation [19ZR1400900]
- Science and Technology Commission of Shanghai Municipality [16JC1400700]
- Fundamental Research Funds for the Central Universities [2232018A3-01]
- Program for Innovative Research Team at the University of Ministry of Education of China [IRT_16R13, 18520750400]
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The improvement of the photocatalytic performance of TiO2 nanofibers (NFs), prepared by electrospinning, is achieved by surface modification with the rhodizonic acid (RhA). The condensation reaction between hydroxyl groups from TiO2 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 TiO2 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 TiO2 NFs with RhA is attributed to their enhanced optical properties, i.e., the ability to harvest the photon energy in the visible spectral range.
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