Nitrogen-doped carbon nanosheets with Fe-based nanoparticles for highly efficient degradation of antibiotics and sulfate ion enhancement effect

Song, Wenkai; Wu, Zenglong; Xu, Xiangwei; Wu, Hsuan-Chung; Yao, Yingming

doi:10.1016/j.chemosphere.2022.133704

Cited by 20 publications

(2 citation statements)

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“…In pathway II, the central heterocycle of TP2 will be converted into TP5 (m/ z : 253) by the ring shrinking reaction . The amine/acrylamido loss of TP5 leads to the formation of TP6 (m/ z : 210), and the further cleavage and cyclization of TP6 also lead to the formation of TP4 . In addition to the two paths mentioned above, TP2 could also converse to TP8 by cleaving the carbon–carbon bond, and TP6 can also be oxidized to TP4 in the presence of oxidizing species. , Eventually, all products will be broken in oxidation reactions dominated by • OH and degraded into small molecules.…”

Section: Resultsmentioning

confidence: 99%

“…The amine/acrylamido loss of TP5 leads to the formation of TP6 (m/ z : 210), and the further cleavage and cyclization of TP6 also lead to the formation of TP4 . In addition to the two paths mentioned above, TP2 could also converse to TP8 by cleaving the carbon–carbon bond, and TP6 can also be oxidized to TP4 in the presence of oxidizing species. , Eventually, all products will be broken in oxidation reactions dominated by • OH and degraded into small molecules. Furthermore, TOC changes in the VUV/PAA/Fe(II) system were monitored and shown in Figure S13.…”

Section: Resultsmentioning

confidence: 99%

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Activation of Peracetic Acid by Trace Ferrous Ion and Vacuum Ultraviolet for the Ultrafast Degradation of PPCPs

Zhang

et al. 2022

ACS EST Water

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Herein, the vacuum ultraviolet system (VUV) was introduced into the peracetic acid/ferrous ion (PAA/Fe(II)) process for the first time to treat the micropollutants in water. When contaminant concentrations (i.e., 10 μM) are comparable to those reported in previous literature, the VUV/PAA/Fe(II) system with a low dosage of PAA (i.e., 50 μM) and trace Fe(II) ion (i.e., 5 μM to 10 μM) exhibited remarkable performance for carbamazepine (CBZ) degradation (more than 90%) within just 5 min and at a wide pH range from 3.0 to 9.0. The outstanding performance of the VUV/PAA/Fe(II) system was attributed to the favorable synergistic effect of the UV-induced Fe(II) regeneration cycle and the activation of PAA as well as H2O2 (coming from both the PAA solution and reactions occurring in the VUV system). Furthermore, the calculated low EE/O value confirmed the energy saving characteristic of the VUV/PAA/Fe(II) system. Considering that the initial Fe(II) concentration required by the system is within the Fe(II) concentration range in natural groundwater and can be further reduced to the value lower than the commonly utilized threshold of Fe for drinking water, this study provides a possibility for the improvement of the UV-based Fenton-like system by in situ utilization of inherent trace metal ions in natural water.

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