Sharma, Aashima, Mehta, Surinder K. and Matharu, Avtar S. orcid.org/0000-0002-9488-565X (2022) Highly Efficient Mesoporous Carbonaceous CeO2Catalyst for Dephosphorylation. ACS Omega. 22551–22558. ISSN 2470-1343
Abstract
Phosphorus is fast becoming a critical element, as the global supply and demand are reaching unsustainable levels. Herein, the synthesis, characterization, and applicability of a novel biomass-derived mesoporous carbonaceous material decorated with CeO2 (CeO2-S400) as an efficient catalyst for the dephosphorylation of 4-nitrophenyl phosphate disodium salt hexahydrate are reported. The presence and distribution of CeO2 are evidenced by inductively coupled plasma mass spectrometry (ICP-MS) (118.7 mg/g), high-resolution transmission electron microscopy (HRTEM), and energy dispersive X-ray (EDX) mapping. The apparent rate constant for the efficient catalysis of 4-nitrophenyl phosphate disodium salt hexahydrate was 0.097 ± 0.01 for CeO2-ES and 0.15 ± 0.03 min-1 for CeO2-S400, which followed first-order kinetics. Rate constants normalized by the catalytic loading (km) were 80.84 and 15.00 g-1 min-1 for CeO2-ES and CeO2-S400, respectively, and the normalized rate constants with respect to surface area were 3.38 and 0.04 m-2 min-1 for CeO2-ES and CeO2-S400, respectively. This indicates that the presence of CeO2 nanoparticles has a catalytic effect on the dephosphorylation reaction.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Funding Information: A.S. acknowledges the Commonwealth Scholarship Commission, United Kingdom, for the Commonwealth Split-site Scholarship award 2019 and CSIR, India, for the SRF (open) fellowship at the University of York under the supervision of A.S.M. Publisher Copyright: © 2022 The Authors. Published by American Chemical Society. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) |
Depositing User: | Pure (York) |
Date Deposited: | 25 Jul 2022 16:00 |
Last Modified: | 17 Dec 2024 00:23 |
Published Version: | https://doi.org/10.1021/acsomega.2c01832 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1021/acsomega.2c01832 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:189425 |