Overall
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received August 29, 2025
Revised November 6, 2025
Accepted November 13, 2025
Available online March 25, 2026
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Most Cited
Rapid Removal of Phenothiazine Pollutants by Novel Catalytic Composites Derived from Sewage Sludge: Decolorization and Degradation Mechanism
https://doi.org/10.1007/s11814-025-00607-w
Abstract
Phenothiazines are new synthetic pollutants that have attracted attention in the present years. In order to remove such
novel pollutants, in this paper, novel catalytic composites loaded with iron metals (SFCs) were prepared by high-temperature
pyrolysis of sewage sludge for the degradation of novel pollutants of phenothiazines, represented by methylene
blue (MB). It was found that among the fi ve SFCs prepared, SFC700, prepared at a pyrolysis temperature of 700 °C, had
the best pore structure, the largest specifi c surface area (452.3 m 2
g −1
), the richest functional groups (such as carboxyl,
hydroxyl, and C = O bonds, etc.), the most Fe 3 O 4 content, which exhibited the best performance. SFC700 composites could
remove 99.9% of MB within 60 min, and the optimal initial pH was 11. SFC700 had a certain decolorization stability,
and the degradation rate could still be maintained at about 90%. It was presumed that SFC700 played the dual role of
adsorption and catalysis.
