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. 2019 Aug 13;7:552. doi: 10.3389/fchem.2019.00552

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Copyright © 2019 Al-Saad, El-Azazy, Issa, Al-Yafie, El-Shafie, Al-Sulaiti and Shomar.

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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Relation between (I) C_e vs. q_e and (II) C₀ and C_e for the adsorption of Cu(II) on BDP in addition to (A) Langmuir, (B) Freundlich, (C) Temkin, and (D) Dubinin-Radushkevich (DR) isotherms of Cu(II) adsorption on BDP.