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. 2018 Apr 12;13:99. doi: 10.1186/s11671-018-2476-7

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© The Author(s). 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 5 — a Isotherms of cationic dyes adsorption on Fe₃O₄/PCC MNPs (b) Langmuir and (c) Freundlich adsorption isotherm models for organic dyes by Fe₃O₄/PCC MNPs. As shown as Fig. 5, the blank line represent the adsorption of MB, the red line reperesent the adsorption of GB, the blue line represent the adsorption of MG, the magenta line represent of CV adsorption, and the olive line is on behalf of the adsorption of FG