Journal
CHINESE CHEMICAL LETTERS
Volume 34, Issue 11, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2023.1083571001-8417
Keywords
Biochar; Persulfate; Emerging pollutants
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This article provides a review of the application of biochar in sulfate radical-based advanced oxidation processes (SR-AOPs), focusing on the synthesis strategies and activation mechanisms of iron-based biochar catalysts, as well as the regeneration methods of biochar-based catalysts. The article points out the challenges faced by biochar-based SR-AOPs and proposes future research directions.
In recent years, biochar (BC) as a low-cost, easily available biomass product, is widely applied in sulfate radical-based advanced oxidation processes (SR-AOPs) for emerging pollutants remediation. Herein, a state-of-art review of iron-based biochar catalysts is currently available in SR-AOPs application. A general summary of the development of biochar and the catalytic properties of biochar is presented. Especially, the synthetic strategies of different types of iron-based biochar catalysts are discussed. Moreover, the theoretical calculation to interpret the interaction between biochar and iron species is discussed to explore the activation mechanisms. And the regeneration methods of biochar-based catalyst are presented. The unresolved challenges of the existent biochar-based SR-AOPs are pointed out, and the outlooks of future research directions are proposed.& COPY; 2023 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.
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