Transition metal doped CeO2 for photocatalytic removal of 2-chlorophenol in the exposure of indoor white light and antifungal activity.
| Title: | Transition metal doped CeO2 for photocatalytic removal of 2-chlorophenol in the exposure of indoor white light and antifungal activity. |
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| Authors: | Qamar MT; Department of Chemistry, Forman Christian College (A Chartered University), Lahore, Pakistan.; Iqbal S; Department of Chemistry, School of Natural Sciences (SNS), National University of Science and Technology (NUST), Islamabad, Pakistan.; Aslam M; Centre of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia.; Alhujaily A; Biology Department, College of Science, Taibah University, Al Madinah Al Munawarah, Saudi Arabia.; Bilal A; Department of Chemistry, School of Natural Sciences (SNS), National University of Science and Technology (NUST), Islamabad, Pakistan.; Rizwan K; Department of Chemistry, University of Sahiwal, Sahiwal, Pakistan.; Farooq HMU; Department of Chemistry, Government Islamia College, Civil Lines, Lahore, Pakistan.; Sheikh TA; Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, Pakistan.; Bahadur A; Department of Chemistry, College of Science and Technology, Wenzhou-Kean University, Wenzhou, China.; Awwad NS; Chemistry Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia.; Ibrahium HA; Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia.; Department of Semi Pilot Plant, Nuclear Materials Authority, El Maadi, Egypt.; Almufarij RS; Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.; Elkaeed EB; Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Riyadh, Saudi Arabia. |
| Source: | Frontiers in chemistry [Front Chem] 2023 Apr 19; Vol. 11, pp. 1126171. Date of Electronic Publication: 2023 Apr 19 (Print Publication: 2023). |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: Frontiers Media S.A Country of Publication: Switzerland NLM ID: 101627988 Publication Model: eCollection Cited Medium: Print ISSN: 2296-2646 (Print) Linking ISSN: 22962646 NLM ISO Abbreviation: Front Chem Subsets: PubMed not MEDLINE |
| Imprint Name(s): | Original Publication: Lausanne : Frontiers Media S.A., [2013]- |
| Abstract: | Besides natural sunlight and expensive artificial lights, economical indoor white light can play a significant role in activating a catalyst for photocatalytic removal of organic toxins from contaminated water. In the current effort, CeO2 has been modified with Ni, Cu, and Fe through doping methodology to study the removal of 2-chlorophenol (2-CP) in the illumination of 70 W indoor LED white light. The absence of additional diffractions due to the dopants and few changes such as reduction in peaks' height, minor peak shift at 2θ (28.525°) and peaks' broadening in XRD patterns of modified CeO2 verifies the successful doping of CeO2. The solid-state absorption spectra revealed higher absorbance of Cu-doped CeO2 whereas a lower absorption response was observed for Ni-doped CeO2. An interesting observation regarding the lowering of indirect bandgap energy of Fe-doped CeO2 (∼2.7 eV) and an increase in Ni-doped CeO2 (∼3.0 eV) in comparison to pristine CeO2 (∼2.9 eV) was noticed. The process of e -- h + recombination in the synthesized photocatalysts was also investigated through photoluminescence spectroscopy. The photocatalytic studies revealed the greater photocatalytic activity of Fe-doped CeO2 with a higher rate (∼3.9 × 10-3 min-1) among all other materials. Moreover, kinetic studies also revealed the validation of the Langmuir-Hinshelwood kinetic model (R2 = 0.9839) while removing 2-CP in the exposure of indoor light with a Fe-doped CeO2 photocatalyst. The XPS analysis revealed the existence of Fe3+, Cu2+ and Ni2+ core levels in doped CeO2. Using the agar well-diffusion method, the antifungal activity was assessed against the fungus M. fructicola and F. oxysporum. Compared to CeO2, Ni-doped CeO2, and Cu-doped CeO2 nanoparticles, the Fe-doped CeO2 nanoparticles have outstanding antifungal properties.; (Copyright © 2023 Qamar, Iqbal, Aslam, Alhujaily, Bilal, Rizwan, Farooq, Sheikh, Bahadur, Awwad, Ibrahium, Almufarij and Elkaeed.) |
| Competing Interests: | The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. |
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| Contributed Indexing: | Keywords: 2-chlorophenol; antifungal activity; band gap energy; modified CeO2; nanocompoiste; photocatalytic removal |
| Entry Date(s): | Date Created: 20230518 Latest Revision: 20230521 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC10186159 |
| DOI: | 10.3389/fchem.2023.1126171 |
| PMID: | 37201130 |
| Database: | MEDLINE |
Journal Article