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Dechlorination of 2,4-dichlorophenol by Fe/Ni nanoparticles: the pathway and the effect of pH and the Ni mass ratio.
- Source :
- Environmental Technology; Oct2023, Vol. 44 Issue 24, p3676-3684, 9p
- Publication Year :
- 2023
-
Abstract
- The dechlorination of 2,4-dichlorophenol (2,4-DCP) by a nanoscale Fe/Ni material was investigated at room temperature. 2,4-DCP can be removed more quickly by an Fe/Ni material with 2% Ni. Fe/Ni exhibited excellent adsorption and reduction efficiency toward 2,4-DCP in an aqueous solution over a wide range of pH values. The removal rate of 2,4-DCP exceeded 95% in 60 min in the pH range of 3.0–9.0, and more than 75% was dechlorinated to phenol (CA). The degradation pathway of 2,4-DCP was confirmed based on analysis of the intermediate and end products. A portion of 2,4-DCP was first dechlorinated with a chlorine atom to produce 2-chlorophenol and 4-chlorophenol, and then dechlorination was performed sequentially to form CA. The other portion of 2,4-DCP was dechlorinated to remove two chlorine atoms simultaneously to generate CA. The investigations are essential to the application of iron-based remediation technology. [ABSTRACT FROM AUTHOR]
- Subjects :
- PH effect
NANOPARTICLES
AQUEOUS solutions
CHLORINE
ATOMS
CHLOROPHENOLS
Subjects
Details
- Language :
- English
- ISSN :
- 09593330
- Volume :
- 44
- Issue :
- 24
- Database :
- Complementary Index
- Journal :
- Environmental Technology
- Publication Type :
- Academic Journal
- Accession number :
- 171899604
- Full Text :
- https://doi.org/10.1080/09593330.2022.2068383