Preferential Growth of the Cobalt (200) Facet in [email protected]–C for Enhanced Performance in a Fenton-like Reaction

Cite this: ACS Catal. 2021, 11, 9, 5532–5543
Publication Date (Web):April 21, 2021
Copyright © 2021 American Chemical Society
Article Views
Read OnlinePDF (7 MB)
Supporting Info (1)»


Herein, a series of [email protected]–C materials are synthesized using nitrates (LiNO3, NaNO3, and KNO3) as templates to control the preferential growth of the cobalt (200) facet. [email protected]–C–X (X = LiNO3, NaNO3, and KNO3) exhibit excellent activities and long-term stabilities for Fenton-like degradation of bisphenol A (BPA) with peroxymonosulfate (PMS) as an oxidant. The texture coefficient (TC) is used to investigate the relationship between the Co facets and their catalytic activities, and a linear relation is built between the TC of Co(200) and the reaction rate constant (k). Co(200) is therefore the most active facet for PMS activation, while nitrates can promote the preferential growth of the Co(200) facet. Moreover, the Co(200) facet is more stable against leaching and can achieve more quick transformation between Co2+/Co3+. Quenching tests, electron paramagnetic resonance spectra, and electrochemical tests show that singlet oxygen (1O2) plays the dominant role for BPA degradation. Density functional theory verifies that Co nanoparticles coated with a graphitic nitrogen-doped carbon layer have the best activity for PMS activation. This work first proposes the strategy of using nitrates to control the preferential growth of Co facets and reveals the relationship between the TC value and k, thus attracting great interest in the environmental field.

Supporting Information

Jump To

The Supporting Information is available free of charge at

  • Additional details on the analytical data, calculation methods, and other supplementary texts, tables, and figures (PDF)

Terms & Conditions

Most electronic Supporting Information files are available without a subscription to ACS Web Editions. Such files may be downloaded by article for research use (if there is a public use license linked to the relevant article, that license may permit other uses). Permission may be obtained from ACS for other uses through requests via the RightsLink permission system:

Cited By

This article has not yet been cited by other publications.