| Title |
Inherent photocatalytic activity of luminescent multi-doped carbon dots manufactured from expired medicine and its application for efficient water remediation and nanosensing |
| ID_Doc |
10392 |
| Authors |
Kamel, GN; El-Shaheny, R; Shabana, RA; Hassan, AHE |
| Title |
Inherent photocatalytic activity of luminescent multi-doped carbon dots manufactured from expired medicine and its application for efficient water remediation and nanosensing |
| Year |
2024 |
| Published |
|
| DOI |
10.1016/j.microc.2024.110576 |
| Abstract |
A fast and green synthesis of multi -doped carbon dots (multi -doped CDs) has been accomplished within 6 min of microwave treatment of a mixture of expired medicine, Vitamin B1, and phosphate salt as a feedstock. Characterization of the prepared quantum dots revealed multi -doping with nitrogen, sulfur, phosphorus, sodium, and chlorine. The prepared multi -doped CDs were applied for dual functions as an efficient photocatalyst and a sensitive fluorescence nanosensor that are not restricted by toxicity, cost, or stability. The efficient light absorption, electron transfer, and separation of photogenerated charge carriers within the multi -doped CDs enabled their use as an effective photocatalyst for remediation of organic dye -polluted water. Efficacious degradation of eriochrome black T dye ( approximate to 88 %) was accomplished within 80 min under visible light irradiation. Radical scavenging experiments demonstrated that the active species are hole, superoxide, and hydroxyl radicals. Furthermore, the multi -doped CDs were applied as a nanosensor for sensitive determination of the muscle relaxant drug thiocolchicoside (TCC) via fluorescence switch -off mechanism mediated by inner filter effect and dynamic quenching. The nanosensor was applied for the determination of TCC in its tablets with mean recovery % of 99.95 +/- 1.55 and excellent selectivity. The present approach is a further step for circular economy applications hence it converts valueless chemical waste into valued products with useful applications. |
| Author Keywords |
Expired medicine; Nanosensor; Photocatalyst; Thiocolchicoside; Water remediation |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001233967500001 |
| WoS Category |
Chemistry, Analytical |
| Research Area |
Chemistry |
| PDF |
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