Heterostructured ZnCdS@ZIF-67 as a Photocatalyst for Fluorescent Dye Degradation and Selectively Nonenzymatic Sensing of Dopamine
Dopamine (DA) plays the role of the transmitter of information in the brain. Neurological diseases and depression are in close relationship with DA release. In this study, we developed a co-catalyst Zn<sub>0.2</sub>Cd<sub>0.8</sub>S@zeolitic imidazolate framework-67 (Zn<su...
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MDPI AG
2022-11-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/21/7683 |
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| author | Zhichao Wang Bianying Wen Jie Zhou Xin Zhao Xiaoyuan Zhang Zhiqiang Su |
| author_facet | Zhichao Wang Bianying Wen Jie Zhou Xin Zhao Xiaoyuan Zhang Zhiqiang Su |
| author_sort | Zhichao Wang |
| collection | DOAJ |
| description | Dopamine (DA) plays the role of the transmitter of information in the brain. Neurological diseases and depression are in close relationship with DA release. In this study, we developed a co-catalyst Zn<sub>0.2</sub>Cd<sub>0.8</sub>S@zeolitic imidazolate framework-67 (Zn<sub>0.2</sub>Cd<sub>0.8</sub>S@ZIF-67) to improve the photocatalyst efficacy of Rhodamine B (RhB) and electrochemical sensing of DA. Results show that Zn<sub>0.2</sub>Cd<sub>0.8</sub>S@ZIF-67 exhibits optimal photocatalytic activity with the addition of 80 mg ZIF-67. The degradation percentage of RhB by Zn<sub>0.2</sub>Cd<sub>0.8</sub>S@ZIF-67 reached 98.40% when the co-catalyst was 50 mg. Radical trapping experiments show that ·O<sub>2</sub><sup>−</sup> played a significant role in the photocatalytic degradation of RhB. The catalytic mechanism of the Zn<sub>0.2</sub>Cd<sub>0.8</sub>S@ZIF-67 was found as a Z-type photocatalysis. Finally, a DA biosensor was constructed and displayed a high response and selectivity to DA. This can be attributed to the heterojunction between Zn<sub>0.2</sub>Cd<sub>0.8</sub>S and ZIF-67, which can significantly enhance the separation of e<sup>−</sup>/h<sup>+</sup> and improve charge transfer. These findings will play a positive role in the in-situ monitoring of neurological diseases and depression. |
| first_indexed | 2024-03-09T18:53:02Z |
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| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T18:53:02Z |
| publishDate | 2022-11-01 |
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| spelling | doaj.art-8d36bc5f1b324349a3d7283ac39088f52023-11-24T05:39:09ZengMDPI AGMaterials1996-19442022-11-011521768310.3390/ma15217683Heterostructured ZnCdS@ZIF-67 as a Photocatalyst for Fluorescent Dye Degradation and Selectively Nonenzymatic Sensing of DopamineZhichao Wang0Bianying Wen1Jie Zhou2Xin Zhao3Xiaoyuan Zhang4Zhiqiang Su5Precision Forestry Key Laboratory of Beijing, Beijing Forestry University, Beijing 100083, ChinaKey Laboratory of Processing and Quality Evaluation Technology of Green Plastics of China National Light Industry Council, Beijing Technology and Business University, Beijing 100048, ChinaState Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, ChinaState Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, ChinaState Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, ChinaState Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, ChinaDopamine (DA) plays the role of the transmitter of information in the brain. Neurological diseases and depression are in close relationship with DA release. In this study, we developed a co-catalyst Zn<sub>0.2</sub>Cd<sub>0.8</sub>S@zeolitic imidazolate framework-67 (Zn<sub>0.2</sub>Cd<sub>0.8</sub>S@ZIF-67) to improve the photocatalyst efficacy of Rhodamine B (RhB) and electrochemical sensing of DA. Results show that Zn<sub>0.2</sub>Cd<sub>0.8</sub>S@ZIF-67 exhibits optimal photocatalytic activity with the addition of 80 mg ZIF-67. The degradation percentage of RhB by Zn<sub>0.2</sub>Cd<sub>0.8</sub>S@ZIF-67 reached 98.40% when the co-catalyst was 50 mg. Radical trapping experiments show that ·O<sub>2</sub><sup>−</sup> played a significant role in the photocatalytic degradation of RhB. The catalytic mechanism of the Zn<sub>0.2</sub>Cd<sub>0.8</sub>S@ZIF-67 was found as a Z-type photocatalysis. Finally, a DA biosensor was constructed and displayed a high response and selectivity to DA. This can be attributed to the heterojunction between Zn<sub>0.2</sub>Cd<sub>0.8</sub>S and ZIF-67, which can significantly enhance the separation of e<sup>−</sup>/h<sup>+</sup> and improve charge transfer. These findings will play a positive role in the in-situ monitoring of neurological diseases and depression.https://www.mdpi.com/1996-1944/15/21/7683photocatalytic degradationZnCdSZIF-67Rhodamine Bdopamine sensor |
| spellingShingle | Zhichao Wang Bianying Wen Jie Zhou Xin Zhao Xiaoyuan Zhang Zhiqiang Su Heterostructured ZnCdS@ZIF-67 as a Photocatalyst for Fluorescent Dye Degradation and Selectively Nonenzymatic Sensing of Dopamine Materials photocatalytic degradation ZnCdS ZIF-67 Rhodamine B dopamine sensor |
| title | Heterostructured ZnCdS@ZIF-67 as a Photocatalyst for Fluorescent Dye Degradation and Selectively Nonenzymatic Sensing of Dopamine |
| title_full | Heterostructured ZnCdS@ZIF-67 as a Photocatalyst for Fluorescent Dye Degradation and Selectively Nonenzymatic Sensing of Dopamine |
| title_fullStr | Heterostructured ZnCdS@ZIF-67 as a Photocatalyst for Fluorescent Dye Degradation and Selectively Nonenzymatic Sensing of Dopamine |
| title_full_unstemmed | Heterostructured ZnCdS@ZIF-67 as a Photocatalyst for Fluorescent Dye Degradation and Selectively Nonenzymatic Sensing of Dopamine |
| title_short | Heterostructured ZnCdS@ZIF-67 as a Photocatalyst for Fluorescent Dye Degradation and Selectively Nonenzymatic Sensing of Dopamine |
| title_sort | heterostructured zncds zif 67 as a photocatalyst for fluorescent dye degradation and selectively nonenzymatic sensing of dopamine |
| topic | photocatalytic degradation ZnCdS ZIF-67 Rhodamine B dopamine sensor |
| url | https://www.mdpi.com/1996-1944/15/21/7683 |
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