An intrinsic descriptor of perovskite cobaltites for catalytic peroxymonosulfate activation toward water remediation
Date
2023
Authors
Wang, K.
Han, C.
Li, F.
Liu, Y.
Shao, Z.
Liu, L.
Wang, S.
Liu, S.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Applied Catalysis B: Environmental, 2023; 320:121990-1-121990-9
Statement of Responsibility
Kai Wang, Chen Han, Fuping Li, Yu Liu, Zongping Shao, Lihong Liu, Shaobin Wang, Shaomin Liu
Conference Name
Abstract
A series of strontium cobaltite perovskite oxides with various dopants (SrCo0.95M0.05O3-δ, M=Fe, Sc, Co, Zn, Gd) are designed for catalytic peroxymonosulfate (PMS) activation to degrade aqueous organic pollutants and the correlations between their crystalline structure and surface properties to catalytic activity were comprehensively investigated. SrCo0.95M0.05O3-δ displays three crystalline structures depending on the dopant metals and exhibits different catalytic activities. Among the structures and properties, Co-O bond length significantly affects the lattice oxygen diffusivity and Co2+/Co3+ redox capacity, governing the overall PMS activation, and is suggested as a descriptor for PMS activation. This study provides new insight to the reaction pathways and the structureactivity correlation for new design of effective perovskite oxides for PMS-based oxidation process toward wastewater treatment and other catalytic processes.
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Dissertation Note
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Available online 14 September 2022
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© 2022 Elsevier B.V. All rights reserved.