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A highly energy-efficient magnetoelectric–photocatalytic coupling for water remediation
- Source :
- Materials Today Chemistry; April 2023, Vol. 29 Issue: 1
- Publication Year :
- 2023
-
Abstract
- Contaminated water is one of the main infection routes for serious diseases, and water remediation of different environmental contaminations is an urge today. Here, we introduce a novel high-μ ribbon FeBSi–ZnO magnetoelectric (ME) nanocomposite that exhibits a magnetoelectric–photocatalytic (MEPC) coupling effect, which further enhances electrochemical activity for water remediation. Compared to the previously reported ultrasonic piezoelectric-photocatalytic technique, the proposed MEPC coupling system is 100–1200 times more energy-efficient. This energy-efficient catalysis can be attributed to the effective charge energy shifting generated by the low-power MEPC coupling system, which promotes the surface redox reaction via transferred electrons and holes and generation of the reactive oxygen species of •O−2and •OH. It is also found that the kinetic rate of organic pollutant degradation under MEPC activity is approximately three times faster than that of a pure PC process. The degradation efficiency for indigo carmine (IC), methyl orange (MO), and rhodamine B (RB) organic pollutants is 98% (less than 60 min), 97%, and 92% within 120 min, respectively. Also, MEPC activity could conduct 99.9% reduction of E. colibacteria within 30 min. This study, therefore, provides an original MEPC system and an effective strategy for the sustainable environmental remediation endowed with an energy-efficient and low-cost nature owing to the multiphysical field synergetic effect.
Details
- Language :
- English
- ISSN :
- 24685194
- Volume :
- 29
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- Materials Today Chemistry
- Publication Type :
- Periodical
- Accession number :
- ejs62255213
- Full Text :
- https://doi.org/10.1016/j.mtchem.2023.101439