1. A degradation column for organic dyes based on a composite of CuFeS nanocrystals and sawdust.
- Author
-
Liang, Daxin, Li, Jian, and Pang, Guangsheng
- Subjects
ORGANIC dyes ,COMPOSITE materials ,NANOCRYSTALS ,WOOD waste ,CHALCOPYRITE ,SOLUTION (Chemistry) - Abstract
A novel Fenton reagent, chalcopyrite CuFeS nanocrystals (NCs) with an average diameter of 10.6 ± 1 nm are synthesized by a facile solution phase method in a standard Schlenk Line, and they can efficiently degrade organic dyes (methylene blue, rhodamine B and rhodamine 6G) aqueous solution (100 mg L) within 1 min. XRD and TEM have been carried out to determine the crystal information, size, and shape of CuFeS NCs. The degradation process is investigated by UV-Vis spectroscopy, and its advantage is illustrated by comparing with bulk chalcopyrite. X-ray photoelectron spectroscopy is used to discuss its degradation mechanism. Based on this Fenton reagent, CuFeS NCs/biomass composite degradation column is made using sawdust as substrate, and it can efficiently degrade organic dyes continually (the total amount of organic dyes degraded by the column are 8.67, 8.44, and 8.64 times the amount degraded by pure CuFeS NCs, respectively). [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF