Iron-decorated covalent organic framework as efficient catalyst for activating peroxydisulfate to degrade 2,4-dichlorophenol: Performance and mechanism insight

Yuhang Han; Meng Tai; Yuxin Yao; Jingyang Li; Yuanyuan Wu; Bo Hu; Yunchao Ma; Chunbo Liu

doi:10.1016/j.jcis.2024.02.165

Iron-decorated covalent organic framework as efficient catalyst for activating peroxydisulfate to degrade 2,4-dichlorophenol: Performance and mechanism insight

J Colloid Interface Sci. 2024 Jun:663:238-250. doi: 10.1016/j.jcis.2024.02.165. Epub 2024 Feb 21.

Authors

Yuhang Han¹, Meng Tai¹, Yuxin Yao¹, Jingyang Li², Yuanyuan Wu¹, Bo Hu³, Yunchao Ma⁴, Chunbo Liu⁵

Affiliations

¹ Key Laboratory of Preparation and Application of Environmental Friendly Materials (Jilin Normal University), Ministry of Education, Changchun, 130103, China; College of Chemistry, Jilin Normal University, Siping, 136000, China.
² Key Laboratory of Preparation and Application of Environmental Friendly Materials (Jilin Normal University), Ministry of Education, Changchun, 130103, China.
³ Key Laboratory of Preparation and Application of Environmental Friendly Materials (Jilin Normal University), Ministry of Education, Changchun, 130103, China; College of Chemistry, Jilin Normal University, Siping, 136000, China. Electronic address: hubo2001@163.com.
⁴ Key Laboratory of Preparation and Application of Environmental Friendly Materials (Jilin Normal University), Ministry of Education, Changchun, 130103, China; College of Chemistry, Jilin Normal University, Siping, 136000, China. Electronic address: yunchaoma@jlnu.edu.cn.
⁵ Key Laboratory of Preparation and Application of Environmental Friendly Materials (Jilin Normal University), Ministry of Education, Changchun, 130103, China; Jilin Joint Technology Innovation Laboratory of Developing and Utilizing Materials of Reducing Pollution and Carbon Emissions, College of Engineering, Jilin Normal University, Siping, 136000, China. Electronic address: chunboliu@jlnu.edu.cn.

PMID: 38401444
DOI: 10.1016/j.jcis.2024.02.165

Abstract

Herein, a novel two-dimensional double-pore covalent organic framework (JLNU-305) was synthesized using N,N,N',N'-tetrakis(4-aminophenyl)-1,4-phenylenediamine (TAPD) and 2,2'-bipyridine-5,5'-dicarboxaldehyde (BPDA). The extended π-π conjugated structure and nitrogen-riched pyridine in JLNU-305 (JLNU = Jilin Normal University) provide abundant binding sites for Fe doping. The obtained JLNU-305-Fe exhibited high and recycled catalytic efficiency for peroxydisulfate (PDS) activation to completely degrade 10 mg/L 2,4-dichlorophenol (2,4-DCP) within 8 min. The JLNU-305-Fe/PDS system showed excellent catalytic activity and cyclic stability. The capture experiments and electron paramagnetic resonance (ESR) analysis indicated that the catalytic behavior of JLNU-305-Fe/PDS is contributed to the synergistic effect between free radicals and non-free radicals. It is the first time to activate PDS for covalent organic frameworks (COFs) being used to degrade 2,4-DCP, which has a great potential for development and practical application in related water environment remediation.

Keywords: 2,4-dichlorophenol; Covalent organic frameworks; Degradation; Peroxydisulfate.