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- Title
Efficient photocatalytic degradation of volatile organic compounds over carbon quantum dots decorated Bi2WO6 under visible light.
- Authors
Liu, Yangqing; Zhu, Changjun; Sun, Jingwen; Ge, Yan; Song, Fujiao; Wang, Guanzhong; Xu, Qi
- Abstract
A series of CQDs/Bi2WO6 (CBW) hybrid materials with different loading amounts of carbon quantum dots (CQDs) were prepared via a facile in situ hydrothermal method. As determined by multiple techniques including XRD, TEM, UV-vis, PL, TPR, and XPS, the CBW possessed expanded visible light response interval, decreased recombination rate of the photogenerated electron hole, and enhanced oxidation ability as compared with the pristine Bi2WO6. In addition, with different loading amounts of CQDs, the optical and electronic properties of the corresponding CBW were different. These CBW materials performed superior activities to the pristine Bi2WO6 in the photodegradation of VOCs under visible light, among which the CBW-2 demonstrated the best activity of almost complete degradation within only 120 min. Moreover, the CBW-2 exhibited high stability and reusability after five cycles.
- Subjects
VISIBLE spectra; VOLATILE organic compounds; CARBON compounds; QUANTUM dots; QUANTUM dot synthesis
- Publication
Environmental Science & Pollution Research, 2021, Vol 28, Issue 20, p25949
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-020-12273-y