Nand Kishor Gour, Manash J. Baruah, Shivanee Borpatra Gohain, Eramoni Saikia, Amir Sohail, Mamon Dey, Abjana Parbin, Gitashree Darabdhara, Arup Jyoti Das, Rupjyoti Dutta, Young-Bin Park, Biraj Das and Mukesh Sharma
{"title":"A NiO/MnO2 nanostructure for efficient reduction of 4-nitrophenol and chromium(vi)†","authors":"Nand Kishor Gour, Manash J. Baruah, Shivanee Borpatra Gohain, Eramoni Saikia, Amir Sohail, Mamon Dey, Abjana Parbin, Gitashree Darabdhara, Arup Jyoti Das, Rupjyoti Dutta, Young-Bin Park, Biraj Das and Mukesh Sharma","doi":"10.1039/D4NJ05066E","DOIUrl":null,"url":null,"abstract":"<p >This study presents the synthesis of a NiO/MnO<small><sub>2</sub></small> nanostructure designed for the efficient reduction of 4-nitrophenol and Cr(<small>VI</small>). The catalyst underwent comprehensive characterization using various physical techniques including XRD, TEM, FT-IR, XPS, BET, <em>etc.</em> Additionally, theoretical investigations were conducted to elucidate the mechanism of 4-nitrophenol reduction to 4-aminophenol over the NiO/MnO matrix. Moreover, XRD and FT-IR analysis unveiled the subtle changes in morphology after the 8th run, providing insights into the catalyst's longevity and potential for sustainable catalysis. The reaction demonstrated an impressive conversion rate of approximately 99% for 4-nitrophenol reduction within 10 min, and complete reduction of Cr(<small>VI</small>) in just 6 min utilizing the NiO/MnO<small><sub>2</sub></small> nanostructure.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 4","pages":" 1214-1222"},"PeriodicalIF":2.7000,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Journal of Chemistry","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2025/nj/d4nj05066e","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
This study presents the synthesis of a NiO/MnO2 nanostructure designed for the efficient reduction of 4-nitrophenol and Cr(VI). The catalyst underwent comprehensive characterization using various physical techniques including XRD, TEM, FT-IR, XPS, BET, etc. Additionally, theoretical investigations were conducted to elucidate the mechanism of 4-nitrophenol reduction to 4-aminophenol over the NiO/MnO matrix. Moreover, XRD and FT-IR analysis unveiled the subtle changes in morphology after the 8th run, providing insights into the catalyst's longevity and potential for sustainable catalysis. The reaction demonstrated an impressive conversion rate of approximately 99% for 4-nitrophenol reduction within 10 min, and complete reduction of Cr(VI) in just 6 min utilizing the NiO/MnO2 nanostructure.
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