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. 2020 Dec 20;10(12):2560. doi: 10.3390/nano10122560

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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SEM analysis of (A) HNTs, and (B) HNTs-Fe₃O₄-CTs-SH. HR-TEM analysis of the HNTs-Fe₃O₄-CTs-SH (C) inset (i) SAED pattern of the HNTs-Fe₃O₄-CTs-SH. The STEM HAADF image of HNTs-Fe₃O₄-CTs-SH (D), elemental mapping of HNTs-Fe₃O₄-CTs-SH (E), and corresponding elemental distribution of Si (F), O (G), Al (H), Fe (I), C (J), N (K) and S (L).