Synthesis of fluorescent carbon quantum dots from Manihot esculenta waste peels for nonlinear optical and biological applications
The synthesis of carbon quantum dots using cassava (Manihot esculenta) waste peels by simple hydrothermal method. Carbon quantum dots were studied using PXRD, and HRTEM analysis, signifying an amorphous graphite carbon structure. The carbon quantum dots have two absorption peaks in the UV–vis spectr...
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Elsevier
2024-06-01
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| Series: | Chemical Physics Impact |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667022424000598 |
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| author | P. Surendran A. Lakshmanan S. Sakthy Priya K. Balakrishnan P. Rameshkumar Karthik Kannan K. Mahalakshmi V. Gayathri G. Vinitha |
| author_facet | P. Surendran A. Lakshmanan S. Sakthy Priya K. Balakrishnan P. Rameshkumar Karthik Kannan K. Mahalakshmi V. Gayathri G. Vinitha |
| author_sort | P. Surendran |
| collection | DOAJ |
| description | The synthesis of carbon quantum dots using cassava (Manihot esculenta) waste peels by simple hydrothermal method. Carbon quantum dots were studied using PXRD, and HRTEM analysis, signifying an amorphous graphite carbon structure. The carbon quantum dots have two absorption peaks in the UV–vis spectrum, around 272 and 304 nm which lead to the π–π* and n–π* transitions. The produced CQDs exhibit excitation dependent fluorescence characteristics, with a fluorescence quantum yield of 4.664% at an excitation wavelength of 330 nm. The CQDs revealed a white light emitting diode with the Commission Internationale d'Eclairage (CIE) coordinates (0.35, 0.35). The nonlinear optical absorption 0.294×10−4 (cm/W), nonlinear refractive index 1.8138×10−8 (cm2/W), and third-order NLO susceptibility 5.5 × 10−6 (esu) were calculated using Z-Scan analysis. The synthesized CQDs were utilized for their antibacterial activity used S. aureus (23 mm), B. cereus (33 mm), E. coli (43 mm), and P. aeruginosa (30 mm) as harmful microbes. Our results suggest that Manihot esculenta waste peels CQDs have potential for application in NLO devices, optical switching, and pharmaceuticals. |
| first_indexed | 2024-03-08T03:29:48Z |
| format | Article |
| id | doaj.art-e36ba6695f2a4bbe9bc6cd1a980267f4 |
| institution | Directory Open Access Journal |
| issn | 2667-0224 |
| language | English |
| last_indexed | 2025-03-21T16:25:32Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Physics Impact |
| spelling | doaj.art-e36ba6695f2a4bbe9bc6cd1a980267f42024-06-17T05:59:48ZengElsevierChemical Physics Impact2667-02242024-06-018100515Synthesis of fluorescent carbon quantum dots from Manihot esculenta waste peels for nonlinear optical and biological applicationsP. Surendran0A. Lakshmanan1S. Sakthy Priya2K. Balakrishnan3P. Rameshkumar4Karthik Kannan5K. Mahalakshmi6V. Gayathri7G. Vinitha8PG and Research Department of Physics, Arignar Anna Government Arts College, Affiliated to Periyar University, Namakkal, Tamil Nadu 637 002, India; PG and Research Department of Physics, Nehru Memorial College (Autonomous), Affiliated to Bharathidasan University, Puthanampatti, Tamil Nadu 621 007, IndiaDepartment of Physics, MAM College of Engineering, Siruganur, Tiruchirappalli, Tamil Nadu 621 102, IndiaPG and Research Department of Physics, Arignar Anna Government Arts College, Affiliated to Periyar University, Namakkal, Tamil Nadu 637 002, IndiaPG and Research Department of Physics, Nehru Memorial College (Autonomous), Affiliated to Bharathidasan University, Puthanampatti, Tamil Nadu 621 007, IndiaPG and Research Department of Physics, Presidency College (Autonomous), Chepauk, Triplicane, Chennai, Tamil Nadu 600 005, India; Corresponding author.Department of Mechanical Engineering and Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chiayi County 621301, TaiwanPG and Research Department of Physics, Presidency College (Autonomous), Chepauk, Triplicane, Chennai, Tamil Nadu 600 005, IndiaPG and Research Department of Physics, Presidency College (Autonomous), Chepauk, Triplicane, Chennai, Tamil Nadu 600 005, IndiaDivision of Physics, School of Advanced Sciences, VIT Chennai, Tamil Nadu 600 127, IndiaThe synthesis of carbon quantum dots using cassava (Manihot esculenta) waste peels by simple hydrothermal method. Carbon quantum dots were studied using PXRD, and HRTEM analysis, signifying an amorphous graphite carbon structure. The carbon quantum dots have two absorption peaks in the UV–vis spectrum, around 272 and 304 nm which lead to the π–π* and n–π* transitions. The produced CQDs exhibit excitation dependent fluorescence characteristics, with a fluorescence quantum yield of 4.664% at an excitation wavelength of 330 nm. The CQDs revealed a white light emitting diode with the Commission Internationale d'Eclairage (CIE) coordinates (0.35, 0.35). The nonlinear optical absorption 0.294×10−4 (cm/W), nonlinear refractive index 1.8138×10−8 (cm2/W), and third-order NLO susceptibility 5.5 × 10−6 (esu) were calculated using Z-Scan analysis. The synthesized CQDs were utilized for their antibacterial activity used S. aureus (23 mm), B. cereus (33 mm), E. coli (43 mm), and P. aeruginosa (30 mm) as harmful microbes. Our results suggest that Manihot esculenta waste peels CQDs have potential for application in NLO devices, optical switching, and pharmaceuticals.http://www.sciencedirect.com/science/article/pii/S2667022424000598Carbon quantum dotsFluorescenceLight emitting diodeNonlinear opticalAntibacterial activity |
| spellingShingle | P. Surendran A. Lakshmanan S. Sakthy Priya K. Balakrishnan P. Rameshkumar Karthik Kannan K. Mahalakshmi V. Gayathri G. Vinitha Synthesis of fluorescent carbon quantum dots from Manihot esculenta waste peels for nonlinear optical and biological applications Chemical Physics Impact Carbon quantum dots Fluorescence Light emitting diode Nonlinear optical Antibacterial activity |
| title | Synthesis of fluorescent carbon quantum dots from Manihot esculenta waste peels for nonlinear optical and biological applications |
| title_full | Synthesis of fluorescent carbon quantum dots from Manihot esculenta waste peels for nonlinear optical and biological applications |
| title_fullStr | Synthesis of fluorescent carbon quantum dots from Manihot esculenta waste peels for nonlinear optical and biological applications |
| title_full_unstemmed | Synthesis of fluorescent carbon quantum dots from Manihot esculenta waste peels for nonlinear optical and biological applications |
| title_short | Synthesis of fluorescent carbon quantum dots from Manihot esculenta waste peels for nonlinear optical and biological applications |
| title_sort | synthesis of fluorescent carbon quantum dots from manihot esculenta waste peels for nonlinear optical and biological applications |
| topic | Carbon quantum dots Fluorescence Light emitting diode Nonlinear optical Antibacterial activity |
| url | http://www.sciencedirect.com/science/article/pii/S2667022424000598 |
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