Construction of interfacial electric field triggered CQD-modified WO3/Mo2C for enhanced photocatalytic degradation of norfloxacin: A synergistic strategy of peroxymonosulfate activation and 1O2 mediated degradation
Photocatalytic-mediated electron transfer for the efficient activation of PMS by heterogeneous photocatalyst contributes to a green and sustainable water treatment process. This present research deals with the deposition of CQDs on WO3/Mo2C heterostructure for efficient photocatalytic degradation of norfloxacin in water. The prepared catalyst C0.10-WM was found to have a more crystalline nature with a larger surface (171.690 m²/g) which is approximately 4 time greater compared to its corresponding to its counter parts. The XRD results supported the formation of the catalyst and revealed the corresponding crystalline phases that matches the TEM results. Further, the prepared catalyst demonstrated an exceptional charge separation efficiency facilitating enhanced photocatalytic performance. The XPS analysis conformed the formation of the catalyst and their oxidation states. The XPS analysis also conformed the formation of an interfacial electric field in the heterostructure which facilitated the formation of Z-Scheme heterojunction. The ESR and radical scavenging assay showed that •OH, O2•-, and 1O2 are the major active radicals responsible for the degradation of norfloxacin in the photocatalytic system. The prepared catalyst demonstrated an exceptional degradation performance and was accelerated by peroximonosulfate (PMS), degrading about 94 % of the drug at a rate of 0.0793 min−1. Further, ecotoxicology assessment suggests that the intermediate and end products were non-toxic which were further validated using ECOSAR analysis. Overall, this study reveals that the activation of PMS enhanced the photocatalytic efficiency of the catalyst for effectively removing organic pollutants from the environment. This study highlights that WO3/Mo2C provides a suitable platform for sustainable wastewater treatment.
Diaporthe species are frequently reported as endophytes on mangroves. These species are also known pathogens affecting several important hosts worldwide, but have yet to be explored as pathogens…
The development of highly efficient and robust photocatalysts is essential for advancing pollution remediation and water purification.
Photocatalytic-mediated electron transfer for the efficient activation of PMS by heterogeneous photocatalyst contributes to a green and sustainable water treatment process. This present research…