Novel Pyrolusite-Templated Biochar as an Outstanding Catalyst for Persulfate Activation: Structural Design, Synergistic Effect, and Mechanism
AffiliationUniversity of Chester; Sichuan University
MetadataShow full item record
AbstractThe design of a high-efficiency and ecofriendly persulfate (PS) activator with low cost and superior performance in water decontamination still remains a big challenge. Herein, we report a facile strategy for the synthesis of novel pyrolusite-templated mesoporous catalyst (PMC), and used it as a green PS activator for the outstanding removal of bisphenol A (BPA) in water. The N2 adsorption–desorption curves and SEM-EDS images show that pyrolusite templating can successfully modulate the mesoporous structure of the catalyst; the XRD and XPS spectra indicate that pyrolusite templating renders the catalyst with enriched active sites and faster electron transfer. The mechanism studies suggest that both the radical and nonradical pathway [singlet oxygen (1O2)] contributed to BPA degradation, and 86.81% of the total organic carbon (TOC) of 100 mg/L BPA was removed using merely 0.4 g/L PMC, without detectable metal ion leaching. This work provides a new strategy for the structural design and property adjustment of an efficient persulfate catalyst for green environmental remediation.
CitationFeng, W., Faraj, Y., Yan, Y., An, Y., Xie, R., & Lai, B. (2022). Novel pyrolusite-templated biochar as an outstanding catalyst for persulfate activation: Structural design, synergistic effect, and mechanism. Industrial & Engineering Chemistry Research, 61(4), 1885-1896. https://doi.org/10.1021/acs.iecr.1c04459
PublisherAmerican Chemical Society
DescriptionThis document is the Accepted Manuscript version of a Published Work that appeared in final form in [Industrial & Engineering Chemistry Research], copyright © [ 2022 American Chemical Society] after peer review and technical editing by the publisher. To access the final edited and published work see [https://pubs.acs.org/doi/pdf/10.1021/acs.iecr.1c04459]
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by-nc-nd/4.0/