Tags

Type your tag names separated by a space and hit enter

One-pot fabrication of sludge-derived magnetic Fe,N-codoped carbon catalysts for peroxymonosulfate-induced elimination of phenolic contaminants.
Chemosphere. 2020 Jun; 248:126076.C

Abstract

The use of waste sludge as a precursor of catalysts for environmental applications has been encouraged during the past few years. In this study, a series of magnetic Fe,N-codoped carbon catalysts (UBC-x) were successfully prepared by a facile one-pot pyrolysis method using Fe-rich sludge and N-rich urea as the raw materials. By carefully controlling the mass ratio of urea/dry sludge (x = 0-3), a significant amount of N (1-10 mass%) were incorporated, and the UBC-x catalysts, especially UBC-0.5 and UBC-0.75, could be imparted with high catalytic activity, convenient magnetic separation and high recycle stability. Phenolic contaminants like phenol and bisphenol A (BPA) could be nearly completely removed through peroxymonosulfate (PMS)-induced degradation by using UBC-x as the catalysts under a wide pH range (2-11) and with the co-existence of water constituents (chloride Cl- and sodium humate NaH, 0-50 mM). Among the several reactive oxidative species (ROS), singlet oxygen (1O2) was deemed as the main reactive species responsible for BPA degradation. Both Fe and N active sites contributed to the high catalytic activity of UBC-x, and their coordination made the catalysts rather stable with no significant Fe leaching under a wide pH range. Therefore, after an easy magnetic separation, the UBC-x could be recycled and reused efficiently in another BPA removal cycle. The as-synthesized magnetic Fe,N-codoped carbon catalysts provided a new route for sludge reutilization and showed potential applications in wastewater treatment.

Authors+Show Affiliations

Institute of Chemistry, Henan Academy of Sciences, Zhengzhou, 450002, PR China. Electronic address: wangj12@163.com.Institute of Chemistry, Henan Academy of Sciences, Zhengzhou, 450002, PR China.Institute of Chemistry, Henan Academy of Sciences, Zhengzhou, 450002, PR China.Institute of Chemistry, Henan Academy of Sciences, Zhengzhou, 450002, PR China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32032882

Citation

Wang, Jing, et al. "One-pot Fabrication of Sludge-derived Magnetic Fe,N-codoped Carbon Catalysts for Peroxymonosulfate-induced Elimination of Phenolic Contaminants." Chemosphere, vol. 248, 2020, p. 126076.
Wang J, Kou L, Zhao L, et al. One-pot fabrication of sludge-derived magnetic Fe,N-codoped carbon catalysts for peroxymonosulfate-induced elimination of phenolic contaminants. Chemosphere. 2020;248:126076.
Wang, J., Kou, L., Zhao, L., & Duan, W. (2020). One-pot fabrication of sludge-derived magnetic Fe,N-codoped carbon catalysts for peroxymonosulfate-induced elimination of phenolic contaminants. Chemosphere, 248, 126076. https://doi.org/10.1016/j.chemosphere.2020.126076
Wang J, et al. One-pot Fabrication of Sludge-derived Magnetic Fe,N-codoped Carbon Catalysts for Peroxymonosulfate-induced Elimination of Phenolic Contaminants. Chemosphere. 2020;248:126076. PubMed PMID: 32032882.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - One-pot fabrication of sludge-derived magnetic Fe,N-codoped carbon catalysts for peroxymonosulfate-induced elimination of phenolic contaminants. AU - Wang,Jing, AU - Kou,Lidong, AU - Zhao,Liang, AU - Duan,Wenjie, Y1 - 2020/01/31/ PY - 2019/10/31/received PY - 2020/01/28/revised PY - 2020/01/30/accepted PY - 2020/2/8/pubmed PY - 2020/5/27/medline PY - 2020/2/8/entrez KW - Bisphenol A degradation KW - Magnetic Fe,N-codoped carbon catalyst KW - Peroxymonosulfate KW - Sludge reutilization SP - 126076 EP - 126076 JF - Chemosphere JO - Chemosphere VL - 248 N2 - The use of waste sludge as a precursor of catalysts for environmental applications has been encouraged during the past few years. In this study, a series of magnetic Fe,N-codoped carbon catalysts (UBC-x) were successfully prepared by a facile one-pot pyrolysis method using Fe-rich sludge and N-rich urea as the raw materials. By carefully controlling the mass ratio of urea/dry sludge (x = 0-3), a significant amount of N (1-10 mass%) were incorporated, and the UBC-x catalysts, especially UBC-0.5 and UBC-0.75, could be imparted with high catalytic activity, convenient magnetic separation and high recycle stability. Phenolic contaminants like phenol and bisphenol A (BPA) could be nearly completely removed through peroxymonosulfate (PMS)-induced degradation by using UBC-x as the catalysts under a wide pH range (2-11) and with the co-existence of water constituents (chloride Cl- and sodium humate NaH, 0-50 mM). Among the several reactive oxidative species (ROS), singlet oxygen (1O2) was deemed as the main reactive species responsible for BPA degradation. Both Fe and N active sites contributed to the high catalytic activity of UBC-x, and their coordination made the catalysts rather stable with no significant Fe leaching under a wide pH range. Therefore, after an easy magnetic separation, the UBC-x could be recycled and reused efficiently in another BPA removal cycle. The as-synthesized magnetic Fe,N-codoped carbon catalysts provided a new route for sludge reutilization and showed potential applications in wastewater treatment. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/32032882/One_pot_fabrication_of_sludge_derived_magnetic_FeN_codoped_carbon_catalysts_for_peroxymonosulfate_induced_elimination_of_phenolic_contaminants_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(20)30269-1 DB - PRIME DP - Unbound Medicine ER -