Green catalysts AuNPs/CQDs from turmeric starch: an effective solution in 4-Nitrophenol reduction
This paper presents a green synthesis method for growing carbon quantum dots (CQDs) from turmeric starch. The CQDs were then used as reducing agents and stabilizers to synthesize dual-shaped gold nanoparticles (AuNPs) with spherical and triangular shapes. In addition to the advantages of CQDs in cat...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/adaf0d |
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| author | Thi Hoa Le Ta Thi Ngoc Anh Nguyen Thi Thu Huong Le Thi Thanh Nhi Quoc Hien Nguyen Thai Hoa Tran |
| author_facet | Thi Hoa Le Ta Thi Ngoc Anh Nguyen Thi Thu Huong Le Thi Thanh Nhi Quoc Hien Nguyen Thai Hoa Tran |
| author_sort | Thi Hoa Le |
| collection | DOAJ |
| description | This paper presents a green synthesis method for growing carbon quantum dots (CQDs) from turmeric starch. The CQDs were then used as reducing agents and stabilizers to synthesize dual-shaped gold nanoparticles (AuNPs) with spherical and triangular shapes. In addition to the advantages of CQDs in catalysis, such as their large surface area and the presence of functional groups, including hydroxyl (-OH) and carbonyl (-C=O), as evidenced by FTIR analysis, the material also demonstrates excellent electron transfer efficiency. This efficiency is attributed to the synergistic interaction between AuNPs and the functional groups on CQDs, facilitating catalytic electron transfer processes in reducing 4-nitrophenol (4-NP). Furthermore, the obtained AuNPs/CQDs material benefits from the plasmonic properties of AuNPs, enhancing light absorption and accelerating catalytic reactions. As a result, AuNPs/CQDs have been successfully applied to effectively catalyze the reduction of 4-NP in aqueous media with high efficiency. The synergy between the plasmonic effect of AuNPs and the catalytic properties of CQDs results in a high catalytic efficiency and a fast reaction time of 20 min, making this method simple, rapid, scalable, and highly effective for environmental pollution remediation. |
| format | Article |
| id | doaj-art-1cd801c06458428798dfd329ae15f7e3 |
| institution | Kabale University |
| issn | 2053-1591 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-1cd801c06458428798dfd329ae15f7e32025-02-06T17:13:06ZengIOP PublishingMaterials Research Express2053-15912025-01-0112202500110.1088/2053-1591/adaf0dGreen catalysts AuNPs/CQDs from turmeric starch: an effective solution in 4-Nitrophenol reductionThi Hoa Le0Ta Thi Ngoc Anh1Nguyen Thi Thu Huong2Le Thi Thanh Nhi3Quoc Hien Nguyen4Thai Hoa Tran5https://orcid.org/0000-0003-4814-4364Department of Chemistry, University of Sciences, Hue University , Hue City, 530000, VietnamPham Hong Thai High School, Chu Pah District, Gia Lai Province, VietnamDepartment of Chemistry, University of Sciences, Hue University , Hue City, 530000, VietnamCenter for Advanced Chemistry, Institute of Research & Development, Duy Tan University , 03 Quang Trung, Danang city, 550000, Vietnam; Faculty of Natural Sciences, Duy Tan University , 03 Quang Trung, Da Nang, 550000, VietnamVietnam Atomic Energy Institute, Hanoi, 100000, VietnamDepartment of Chemistry, University of Sciences, Hue University , Hue City, 530000, VietnamThis paper presents a green synthesis method for growing carbon quantum dots (CQDs) from turmeric starch. The CQDs were then used as reducing agents and stabilizers to synthesize dual-shaped gold nanoparticles (AuNPs) with spherical and triangular shapes. In addition to the advantages of CQDs in catalysis, such as their large surface area and the presence of functional groups, including hydroxyl (-OH) and carbonyl (-C=O), as evidenced by FTIR analysis, the material also demonstrates excellent electron transfer efficiency. This efficiency is attributed to the synergistic interaction between AuNPs and the functional groups on CQDs, facilitating catalytic electron transfer processes in reducing 4-nitrophenol (4-NP). Furthermore, the obtained AuNPs/CQDs material benefits from the plasmonic properties of AuNPs, enhancing light absorption and accelerating catalytic reactions. As a result, AuNPs/CQDs have been successfully applied to effectively catalyze the reduction of 4-NP in aqueous media with high efficiency. The synergy between the plasmonic effect of AuNPs and the catalytic properties of CQDs results in a high catalytic efficiency and a fast reaction time of 20 min, making this method simple, rapid, scalable, and highly effective for environmental pollution remediation.https://doi.org/10.1088/2053-1591/adaf0d4-Nitrophenolcarbon quantum dotsgold nanoparticlesgreen synthesiscatalyst |
| spellingShingle | Thi Hoa Le Ta Thi Ngoc Anh Nguyen Thi Thu Huong Le Thi Thanh Nhi Quoc Hien Nguyen Thai Hoa Tran Green catalysts AuNPs/CQDs from turmeric starch: an effective solution in 4-Nitrophenol reduction Materials Research Express 4-Nitrophenol carbon quantum dots gold nanoparticles green synthesis catalyst |
| title | Green catalysts AuNPs/CQDs from turmeric starch: an effective solution in 4-Nitrophenol reduction |
| title_full | Green catalysts AuNPs/CQDs from turmeric starch: an effective solution in 4-Nitrophenol reduction |
| title_fullStr | Green catalysts AuNPs/CQDs from turmeric starch: an effective solution in 4-Nitrophenol reduction |
| title_full_unstemmed | Green catalysts AuNPs/CQDs from turmeric starch: an effective solution in 4-Nitrophenol reduction |
| title_short | Green catalysts AuNPs/CQDs from turmeric starch: an effective solution in 4-Nitrophenol reduction |
| title_sort | green catalysts aunps cqds from turmeric starch an effective solution in 4 nitrophenol reduction |
| topic | 4-Nitrophenol carbon quantum dots gold nanoparticles green synthesis catalyst |
| url | https://doi.org/10.1088/2053-1591/adaf0d |
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