Correction to: Effective adsorptive performance of Fe3O4@SiO2 core shell spheres for methylene blue: kinetics, isotherm and mechanism

The article Effective adsorptive performance of Fe3O4@SiO2 core shell spheres for methylene blue: kinetics, isotherm and mechanism, written by Fazle Subhan, Sobia Aslam, Zifeng Yan, Mawaz Khan, U. J. Etim, Muhammad Naeem was originally published electronically on the publisher’s internet portal (currently SpringerLink) on 18 March 2019 with open access.. With the author(s)’ decision to step back from Open Choice, the copyright of the article changed on April 2018 to © Springer Science+Business Media, LLC, part of Springer Nature 2019 and the article is forthwith distributed under the terms of copyright.