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Leftover Kiwi Fruit Peel-Derived Carbon Dots as a Highly Selective Fluorescent Sensor for Detection of Ferric Ion
| Content Provider | MDPI |
|---|---|
| Author | Atchudan, Raji Edison, Thomas Perumal, Suguna Vinodh, Rajangam Sundramoorthy, Ashok Babu, Rajendran Lee, Yong |
| Copyright Year | 2021 |
| Description | Recently, the use of natural products for the synthesis of carbon dots (CDs) has received much attention. Herein, leftover kiwi (Actinidia Deliciosa) fruit peels were successfully turned into beneficial fluorescent carbon dots (KN-CDs) via the hydrothermal-carbonization route. KN-CDs 1 and KN-CDs 2 were prepared without and with ammonium hydroxide, respectively. KN-CDs 1 and KN-CDs 2 were systematically characterized by various analytical techniques. Synthesized KN-CDs showed spherical-shaped morphology with narrow size distribution and excellent optical properties with excitation-independent behaviors. The quantum yields of KN-CDs 1 and KN-CDs 2 were calculated as 14 and 19%, respectively. Additionally, the KN-CDs possess excellent prolonging and photostability. Because of the excellent optical properties of KN-CDs, they were utilized as fluorescent sensors. The strong fluorescence of the KN-CDs was selectively quenched by $Fe^{3+}$ ion, and quenching behavior showed a linear correlation with the concentrations of $Fe^{3+}$ ion. KN-CDs 1 and KN-CDs 2 showed the detection of $Fe^{3+}$ ions within the concentration range of 5–25 µM with the detection limit of 0.95 and 0.85 µM, respectively. Based on the turn-off sensing by the detection of $Fe^{3+}$ ions, KN-CDs would be a promising candidate as a selective and sensitive fluorescent sensor. |
| Starting Page | 166 |
| e-ISSN | 22279040 |
| DOI | 10.3390/chemosensors9070166 |
| Journal | Chemosensors |
| Issue Number | 7 |
| Volume Number | 9 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-07-02 |
| Access Restriction | Open |
| Subject Keyword | Chemosensors Analytical Chemistry Kiwi Fruit Peel Hydrothermal-carbonization Carbon Dots Fluorescent Sensor Ferric Ion Detection |
| Content Type | Text |
| Resource Type | Article |
