Engineering Photocatalytic TiO₂/CuWO₄ Coatings: The Synergistic Effect of Oxidants on Heavy Metal Remediation | ||
| Journal of Ultrafine Grained and Nanostructured Materials | ||
| مقاله 3، دوره 58، شماره 2، اسفند 2025، صفحه 152-160 اصل مقاله (1.27 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/jufgnsm.2025.02.03 | ||
| نویسندگان | ||
| Hamed Bahramian* ؛ Arash Fattah-alhosseini؛ Minoo Karbasi | ||
| Bu-Ali Sina University, Department of Materials Engineering, Faculty of Engineering, Hamedan, Iran | ||
| چکیده | ||
| A highly active TiO₂/CuWO₄ heterostructure coating for Cr⁶⁺ photoreduction was developed through PEO and hydrothermal post-treatment. Characterizations such as FESEM, GXRD, AFM and wettability, revealed that nano-sized CuWO₄ integration transforms the morphology, producing a hierarchical, microporous base with uniformly distributed particles and a super-hydrophilic, rough surface for improved accessibility. Oxidant screening revealed that both radical (〖SO〗_4^(⦁-), 〖HO〗^⦁) and non-radical species are critical to the mechanism. Peroxydisulfate (PDS) achieved the highest synergy (synergistic factor= 0.9) via sulfate radical generation, significantly outperforming peroxymonosulfate (PMS) and the ineffective H₂O₂. This study proposes a dual-pathway mechanism and introduces a durable, scalable photocatalytic coating solution for environmental cleanup. | ||
| کلیدواژهها | ||
| Cr photoreduction؛ Oxidants؛ plasma electrolytic oxidation؛ hydrothermal؛ TiO₂/CuWO₄ Coatings | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 542 تعداد دریافت فایل اصل مقاله: 394 |
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