Atomically dispersed Fe-N5 sites with optimized electronic structure for sustainable wastewater purification via efficient Fenton-like catalysis - Details

Author：

Indexed by：

EI Scopus SCIE

Abstract：

Herein,　a　single-atom　catalyst　(SAC)　featuring　Fe-N5　sites　(FeNC)　with　optimized　electronic　structures　was　constructed　and　applied　to　activate　peroxymonosulfate　(PMS)　for　wastewater　purification.　The　high-coordinated　Fe-N5　sites　was　obtained　by　creating　a　high-nitrogen　gas　environment　around　fully　exposed　Fe　atomic　sites　on　chitosan　surface　during　pyrolysis.　The　FeNC/PMS　system　demonstrated　excellent　decontamination　capability,　superior　anti-pH　interference　ability,　while　also　exceptional　durability　in　a　continuous-flow　catalytic　filtration　reactor.　Experiments　and　density　functional　theory　calculations　unveiled　that　Fe-N5　site　was　the　active　center.　Meaningfully,　neighboring　carbonyl　groups　narrowed　the　gap　between　d-band　center　of　Fe　3d　and　Fermi　level,　which　increased　the　adsorption　energy　of　PMS　on　Fe-N5　sites,　thus　lowering　the　energy　barrier　for　singlet　oxygen　generation.　This　study　brings　a　vivid　electronic　structure　optimization　strategy　for　enhancing　the　catalytic　activity　of　Fe　SAC　as　well　as　guiding　the　selection　of　desirable　catalysts　for　wastewater　purification　by　Fenton-like　chemistry.　©　2024　Elsevier　B.V.

Keyword：

Iron Atoms Purification Oxidation Catalyst activity Coordination reactions Electronic structure Density functional theory Iron compounds Structural optimization

Author Community：

[ 1 ] [Li, Yanan]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Wei, Jia]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Cui, Nan]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Li, Jiamei]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Ji, Wei]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Wang, Linhao]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Huo, Jiangkai]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
[ 8 ] [Yan, Wenhao]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
[ 9 ] [Zhang, Xiaohui]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
[ 10 ] [Zhao, Yuxin]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
[ 11 ] [Li, Jun]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China

Reprint Author's Address：

Email：

Show more details

Related Keywords：

Source ：

Applied Catalysis B: Environmental

ISSN： 0926-3373

Year： 2024

Volume： 358

2 2 . 1 0 0

JCR@2022

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 16

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 5

Affiliated Colleges：

Get Fulltext

DOI Library Discovery Baidu Scholar Search Engineering Village

Type
Departments

All Years Choose Year From to