Carbon quantum dots anchored TiO2 nanofibers: Effective photocatalyst for waste water treatment. Issue 9 (November 2015)

• Record Type: Journal Article
• Authors: Saud, Prem Singh; Pant, Bishweshwar; Alam, Al-Mahmnur; Ghouri, Zafar Khan; Park, Mira; Kim, Hak-Yong
• Is Part Of: Ceramics international. Volume 41:Issue 9(2015)Part B
• Page Start: 11953
• Page End: 11959
• Publication Date: 2015-11
• Subjects: Carbon quantum dots -- Composite nanofiber -- Photocatalyst -- Antibacterial -- Hydrothermal; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.06.007
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Carbon quantum dots/titanium dioxide (CQDs/TiO2 ) composite nanofibers were prepared via a facile one step hydrothermal method. Characterization of the samples was carried out by Field-emission scanning electron microscopy (FE-SEM), Transmission electron microscopy (TEM), X-ray diffraction (XRD), Photoluminescence (PL), and Fourier transformed infrared (FT-IR) spectroscopy. Our study revealed that the photocatalytic efficiency (photodegradation of methylene blue) under visible light irradiation and antibacterial properties (against Escherichia coli ) of as prepared composite nanofibers (CQDs/TiO2 ) are higher than pristine TiO2 nanofibers. The anchored CQDs can both enhance the light absorption and suppress photogenerated electron–hole׳s recombination which results in the enhancement of catalytic and antibacterial properties.