Abstract
Peroxymonosulfate (PMS) advanced oxidation is gaining recognition as a promising method for tackling persistent soil pollutants. However, developing an efficient PMS activator remains a formidable task. This study harnessed Shewanella oneidensis MR-1, a model dissimilatory metal-reducing bacterium (DMRB), to synthesize Mn2O3 nanoparticles by oxidizing Mn(II). These nanoparticles were employed to activate PMS for phenanthrene degradation in soil. Remarkably, biogenic Mn2O3 outperformed chemically synthesized Mn2O3, removing 77.4% of phenanthrene compared to 55.7%. This superior performance is attributed to biogenic Mn2O3's faster electron transfer rate and higher Mn(III) ratio, facilitating electron donation to PMS. Additionally, we assessed the feasibility of PMS advanced oxidation for soil remediation by examining microbial community diversity. Given manganese's prevalence in natural soil and groundwater, in-situ biogenic Mn2O3 synthesis emerges as an innovative soil remediation strategy. Graphical Abstract: (Figure presented.)
| Original language | English |
|---|---|
| Article number | 231 |
| Journal | Water, Air, and Soil Pollution |
| Volume | 235 |
| Issue number | 4 |
| ISSN | 0049-6979 |
| DOIs | |
| Publication status | Published - Apr 2024 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024.
Keywords
- Advanced oxidation
- Degradation
- Electron transfer
- Shewanella oneidensis MR-1
- Soil organic contamination
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