High-efficient photocatalytic fuel cell integrated with periodate activation for electricity production by degradation of refractory organics

Parvizi, Tayebeh; Parsa, Jalal Basiri

doi:10.1016/j.jpowsour.2020.229264

Cited by 13 publications

(1 citation statement)

References 51 publications

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“…As seen in Figure 3 c–f, the change in the PI concentration, as the main source of reactive oxygen species (ROS) in the system, is bound to have a direct impact on the total amount of ROS and the degradation rate of TPhP in the system. Therefore, the concentration of PI should be reasonably controlled to obtain the optimal degradation conditions [ 58 ]. As can be seen from Figure 3 c, the PI concentration was increased from 0.1 mM to 2 mM.…”

Section: Resultsmentioning

confidence: 99%

Myriophyllum Biochar-Supported Mn/Mg Nano-Composites as Efficient Periodate Activators to Enhance Triphenyl Phosphate Removal from Wastewater

Xie,

Chen,

Song

et al. 2024

Materials

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Transition metals and their oxide compounds exhibit excellent chemical reactivity; however, their easy agglomeration and high cost limit their catalysis applications. In this study, an interpolation structure of a Myriophyllum verticillatum L. biochar-supported Mn/Mg composite (Mn/Mg@MV) was prepared to degrade triphenyl phosphate (TPhP) from wastewater through the activating periodate (PI) process. Interestingly, the Mn/Mg@MV composite showed strong radical self-producing capacities. The Mn/Mg@MV system degraded 93.34% TPhP (pH 5, 10 μM) within 150 min. The experimental results confirmed that the predominant role of IO3· and the auxiliary ·OH jointly contributed to the TPhP degradation. In addition, the TPhP pollutants were degraded to various intermediates and subsequent Mg mineral phase mineralization via mechanisms like interfacial processes and radical oxidation. DFT theoretical calculations further indicated that the synergy between Mn and Mg induced the charge transfer of the carbon-based surface, leading to the formation of an ·OH radical-enriched surface and enhancing the multivariate interface process of ·OH, IO3, and Mn(VII) to TPhP degradation, resulting in the further formation of Mg PO4 mineralization.

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Section: Resultsmentioning

confidence: 99%