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Efficient Adsorptive Performance of Medical Stone Decorated by Carbon Dots.
- Source :
- Nature Environment & Pollution Technology; 2020, Vol. 19 Issue 3, p1227-1234, 8p
- Publication Year :
- 2020
-
Abstract
- Carbon dots could significantly change the property of a normal material and have received wide attention in the recent decade. In this research, glucose as a carbon source, carbon dots decorated medical stone (CD-MS) was successfully synthesized for efficient adsorptive removal of organic pollutants. Pyrolytic temperature and glucose concentration for the adsorbent preparation were proved to have a significant impact on the adsorptive performance. The optimal pyrolytic temperature and glucose concentration were found to be 300°C and 0.5 M, yielding the optimized adsorbent 0.5CDMS-300 superior to other carbon dots decorated MS. Surface morphology analysis demonstrated that the carbon dots were successfully immobilized on the surface of MS while the atomic ratio of C increased from 2.6% of the raw MS to 11.25% of the 0.5CD-MS-300. Three organic pollutants including p-nitrophenol, orange II and methylene blue with different charge properties were employed to explore the adsorptive performance of the 0.5CD-MS-300. The results indicated that the surface of 0.5CDMS-300 was negatively charged while carbon dots had significantly improved the adsorption capability of the raw MS. As such, the resulting adsorbent 0.5CD-MS-300 can be considered as a powerful adsorbent for the removal of some organic contaminants from wastewater. [ABSTRACT FROM AUTHOR]
- Subjects :
- PYROLYTIC graphite
CARBON
SURFACE morphology
POLLUTANTS
STONE
SURFACE analysis
Subjects
Details
- Language :
- English
- ISSN :
- 09726268
- Volume :
- 19
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Nature Environment & Pollution Technology
- Publication Type :
- Academic Journal
- Accession number :
- 145459926
- Full Text :
- https://doi.org/10.46488/NEPT.2020.v19i03.037