Atomically dispersed ternary FeCoNb active sites anchored on N-doped honeycomb-like mesoporous carbon for highly catalytic degradation of 4-nitrophenol.

Autor: Jiang ZF; College of Geography and Environmental Sciences, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, 321004, China., Tian FM; College of Geography and Environmental Sciences, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, 321004, China., Fang KM; College of Geography and Environmental Sciences, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, 321004, China., Wang ZG; College of Geography and Environmental Sciences, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, 321004, China., Zhang L; College of Geography and Environmental Sciences, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, 321004, China., Feng JJ; College of Geography and Environmental Sciences, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, 321004, China., Wang AJ; College of Geography and Environmental Sciences, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, 321004, China. Electronic address: ajwang@zjnu.cn.
Jazyk: angličtina
Zdroj: Journal of colloid and interface science [J Colloid Interface Sci] 2025 Jan; Vol. 677 (Pt A), pp. 718-728. Date of Electronic Publication: 2024 Aug 05.
DOI: 10.1016/j.jcis.2024.08.027
Abstrakt: In the last decades, 4-nitrophenol is regarded as one of highly toxic organic pollutants in industrial wastewater, which attracts great concern to earth sustainability. Herein, atomically dispersed ternary FeCoNb active sites were incorporated into nitrogen-doped honeycomb-like mesoporous carbon (termed FeCoNb/NHC) by a two-step pyrolysis strategy, whose morphology, structure and size were characterized by a set of techniques. Further, the catalytic activity and reusability of the as-prepared FeCoNb/NHC were rigorously examined by using 4-NP catalytic hydrogenation as a proof-of-concept model. The influence of the secondary pyrolysis temperature on the catalytic performance was investigated, combined by illuminating the catalytic mechanism. The resultant catalyst exhibited significantly enhanced catalytic features with a normalized rate constant (k app ) of 1.2 × 10 4 min -1 g -1 and superior stability, surpassing the home-made catalysts in the control groups and earlier research. This study provides some constructive insights for preparation of high-efficiency and cost-effectiveness single-atom nanocatalysts in organic pollutants environmental remediation.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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