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. 2023 Mar 6;10:1122876. doi: 10.3389/fnut.2023.1122876

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Copyright © 2023 Bai, Zhang, Li and Liang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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TEM, HAADF-STEM, mapping, XRD, and XPS of CD_Fe. (A–C) TEM OF CD_Fe. (D) HAADF-STEM of CD_Fe. (E) Mapping of CD_Fe. (F) EDS of CD_Fe. (G) XRD of Fer and CD_Fe. (H) XRD of Hemin and CD_HM. (I) XPS survey spectra of CD_Fe. (J–L) C1s, O1s, and Fe2p high-resolution spectrum of CD_Fe.