| Polymer dot sensitized Cu2O/g-C3N4 S-scheme heterojunction for enhanced photoelectrochemical degradation of tetracycline |
| کد مقاله : 1123-17THECSI |
| نویسندگان |
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مهسا فولادی1، خیبر دشتیان2، شاکر حاجتی3، روح اله زارع دورابی *4 1دانشگاه علم صنعت ایران، دانشکده شیمی 2دانشگاه علم و صنعت ایران، دانشکده شیمی 3گروه نیمه هادی ها، پژوهشگاه مواد و انرژی 4گروه شیمی تجزیه، دانشکده شیمی، دانشگاه علم و صنعت ایران |
| چکیده مقاله |
| The abuse of antibiotic drugs causes residues in natural water, damaging ecosystems and affecting human health. Hydroxyl radical (radical •OH) species are recognized as a promising strategy for deep purification of water with high efficiency, and environmentally friendly. Photoelectrochemical (PEC) degradation is a potential clean technique to achieve the mass production of radical •OH for effective pollutant treatment. Here, we proposed a photoanode-based electrophoretic deposition of protonated graphitic-carbon nitride (p-g-C3N4) in Cu2O sensitized with polymeric quantum dot (pQDs) as an S-scheme heterostructure to produce robust light harvesting, charge separation and transfer to enhanced radical •OH with sustainable solar energy for robust tetracycline hydrochloride (TC-HCl) degradation. The deep valence band of Cu2O provides the suitable potential for radical •OH generation. Experiments of photoelectrochemical, XPS, UPS, etc. confirmed the synergistic close interfacial contact of the constructed p-QDs sensitized S-scheme p-g-C3N4/Cu2O. Thus, the reusable and stable nanostructures exhibit the best PEC TC-HCl removal rate (99% within 100 min) as well as can be served as an efficient approach for the remediation of antibiotic-contaminated wastewater and sustainable environmental protection. |
| کلیدواژه ها |
| Tetracycline, Cu2O, p-g-C3N4, Photoelectrocatalysis, Heterojunction, Polymer dot |
| وضعیت: چکیده برای ارائه شفاهی پذیرفته شده است |