Editorial Expression of Concern: A Systematic Review on Photocatalytic Biohydrogen Production from Waste Biomass

Abstract

5The Editors-in-Chief are issuing an Editorial Expression of Concern to alert readers that this article includes a number of references which are not clearly relevant to the text where the citation is included or to the overall topic of the article, which were identified after a post-publication assessment. Readers are advised to interpret this work with caution. The authors have not responded to any correspondence from the editor about this Editorial Expression of Concern. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2026.