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Modulating electron density enable efficient cascade conversion from peroxymonosulfate to superoxide radical driven by electron-rich/poor dual sites.
Jiang, Jingjing; Shi, Donglong; Niu, Shu; Liu, Shengda; Liu, Yansong; Zhao, Bowen; Zhang, Yanan; Liu, Hongyu; Zhao, Zhenhao; Li, Mingyu; Huo, Mingxin; Zhou, Dandan; Dong, Shuangshi.
Afiliación
  • Jiang J; Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin University, Changchun 130021, Jilin, China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, Jilin, China.
  • Shi D; Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin University, Changchun 130021, Jilin, China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, Jilin, China.
  • Niu S; Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin University, Changchun 130021, Jilin, China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, Jilin, China.
  • Liu S; School of Chemical and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, Jilin, China.
  • Liu Y; Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin University, Changchun 130021, Jilin, China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, Jilin, China.
  • Zhao B; Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin University, Changchun 130021, Jilin, China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, Jilin, China.
  • Zhang Y; Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin University, Changchun 130021, Jilin, China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, Jilin, China.
  • Liu H; Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin University, Changchun 130021, Jilin, China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, Jilin, China.
  • Zhao Z; Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin University, Changchun 130021, Jilin, China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, Jilin, China.
  • Li M; Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin University, Changchun 130021, Jilin, China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, Jilin, China.
  • Huo M; Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, Jilin, China.
  • Zhou D; Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, Jilin, China.
  • Dong S; Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin University, Changchun 130021, Jilin, China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, Jilin, China. Electronic address: dongshuangshi
J Hazard Mater ; : 133749, 2024 Feb 08.
Article en En | MEDLINE | ID: mdl-38383276
ABSTRACT
The superoxide radical (•O2-)-mediated peroxymonosulfate (PMS)-based photo-Fenton-like reaction enables highly selective water decontamination. Nevertheless, the targeted construction of •O2--mediated photo-Fenton-like system has been challenging. Herein, we developed an electron-rich/-poor dual sites driven •O2--mediated cascade photo-Fenton-like system by modulating electron density. Experimental and theoretical results demonstrated that PMS was preferentially adsorbed on electron-poor Co site. This adsorption promoted O-O bond cleavage of PMS to generate hydrogen peroxide (H2O2), which then migrated to electron-rich O site to extract eg electrons for O-H bond cleavage, rather than competing with PMS for Co site. The developed versatile cascade reaction system could selectively eliminate contaminants with low n-octanol/water partition constants (KOW) and dissociation constants (pKa) and remarkably resist inorganics (Cl-, H2PO4- and NO3-), humic acid (HA) and even real water matrices (tap water and secondary effluent). This finding provided a novel and plausible strategy to accurately and efficiently generate •O2- for the selective water decontamination.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos