The journal retracts the article titled “Lanthanum-Zinc Binary Oxide Nanocomposite with Promising Heterogeneous Catalysis Performance for the Active Conversion of 4-Nitrophenol into 4-Aminophenol” [1], cited above.
Following publication, concerns were brought to the attention of the Editorial Office regarding the integrity of some images presented in this publication [1].
Adhering to our standard procedure, an investigation was conducted by the Editorial Office and Editorial Board, which identified indications of inappropriate editing and duplication between figures presented in this article [1] and that of earlier publications [2] produced by a similar research group and presenting different experimental conditions. While the authors collaborated in this process, raw material meeting the journal’s original image requirements (https://www.mdpi.com/journal/coatings/instructions#oriimages, accessed on 20 November 2025) could not be provided for Editorial Board evaluation. Consequently, the Editorial Board has lost confidence in the reliability of the findings and has decided to retract this publication, as per MDPI’s retraction policy (https://www.mdpi.com/ethics#_bookmark30, accessed on 20 November 2025).
This retraction was approved by the Editor-in-Chief of the journal Coatings.
Rama Rao Karri agreed with this retraction. Ikram Ahmad disagreed with this retraction. The remaining authors did not provide a comment on this decision.
References
- Ahmad, I.; Jamal, M.A.; Iftikhar, M.; Ahmad, A.; Hussain, S.; Asghar, H.; Saeed, M.; Yousaf, A.B.; Karri, R.R.; Al-kadhi, N.S.; et al. RETRACTED: Lanthanum-Zinc Binary Oxide Nanocomposite with Promising Heterogeneous Catalysis Performance for the Active Conversion of 4-Nitrophenol into 4-Aminophenol. Coatings 2021, 11, 537. [Google Scholar] [CrossRef] [Scilit]
- Raees, A.; Jamal, M.A.; Ahmed, I.; Silanpaa, M.; Saad Algarni, T. Synthesis and Characterization of CeO2/CuO Nanocomposites for Photocatalytic Degradation of Methylene Blue in Visible Light. Coatings 2021, 11, 305. [Google Scholar] [CrossRef] [Scilit]
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