Retraction notice to "Silica-coated modified magnetic nanoparticles (Fe₃O₄@SiO₂@(BuSO₃H)₃) as an efficient adsorbent for Pd²⁺ removal" [Chemosphere 307 (2022) 135622]

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/policies/article-withdrawal). <This article has been retracted at the request of the Editors-in-Chief. A journal-wide investigation by Elsevier's Research Integrity & Publishing Ethics team identified violations of the journal's policies on authorship and conflict of interest related to the submission and review of this paper. Authorship changes were made during the revision of this paper; an author was removed without validation or authorisation, and Hassan Karimi-Maleh was included in the CRediT author statement without being listed as an author. In addition, there was a significant increase of citations of papers authored by Karimi-Maleh between the original submission and the revised version; 7 papers by Karimi-Maleh were added in the revised version of the paper. Review of this submission was handled by Guest Editor Yasser Vasseghian despite an extensive record of collaboration, including co-publication, with one of the paper co-authors (Fatemeh Karimi). Acceptance of the article was partly based upon the positive advice of a reviewer who was closely linked to one of the authors (Karimi). This compromised the editorial process and breached the journal's policies. The authors disagree with this retraction and dispute the grounds for it.>.