In situ synthesis of oxygen-doped carbon quantum dots embedded in MIL-53(Fe) for efficient degradation of oxytetracycline
Introducing carbon quantum dots (CQDs) into photocatalysts is believed to boost the charge transfer rate and reduce charge complexation. Doping heteroatoms such as N, S, or P enable CQDs to have an uplifting electron transfer capability. However, the application of oxygen-doped CQDs to improve the p...
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| Veröffentlicht in: | Environmental science and pollution research international 2024-04, Vol.31 (18), p.26686-26698 |
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| container_title | Environmental science and pollution research international |
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| creator | Du, Chunyan Lv, Yinchu Yu, Hanbo Zhang, Yin Zhu, Hao Dong, Wei Zou, Yulv Peng, Huaiyuan Zhou, Lu Wen, Xiaofeng Cao, Jiao Jiang, Jingyi |
| description | Introducing carbon quantum dots (CQDs) into photocatalysts is believed to boost the charge transfer rate and reduce charge complexation. Doping heteroatoms such as N, S, or P enable CQDs to have an uplifting electron transfer capability. However, the application of oxygen-doped CQDs to improve the performance of photocatalysts has rarely been reported. Herein, a type of carbon-oxygen quantum dots (COQDs) was in situ embedded into MIL-53(Fe) to aid peroxydisulfate (PDS)-activated degradation of oxytetracycline (OTC) under visible light irradiation. The successful embedding of COQDs was confirmed by XRD, FT-IR, XPS, SEM, and TEM techniques. Photoelectrochemical testing confirmed its better performance. The prepared COQDs1/MIL-53(Fe) showed 88.2% decomposition efficiency of OTC in 60 min, which was 1.45 times higher than that of pure MIL-53(Fe). In addition, the performance of the material was tested at different pH, OTC concentrations, catalyst dosing, and PDS dosing. It was also subjected to cyclic testing to check stability. Moreover, free radical trapping experiments and electron paramagnetic resonance were conducted to explore the possible OTC deterioration mechanism. Our work provides a new idea for the development of MOFs for water treatment and remediation. |
| doi_str_mv | 10.1007/s11356-024-32729-9 |
| format | Article |
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Doping heteroatoms such as N, S, or P enable CQDs to have an uplifting electron transfer capability. However, the application of oxygen-doped CQDs to improve the performance of photocatalysts has rarely been reported. Herein, a type of carbon-oxygen quantum dots (COQDs) was in situ embedded into MIL-53(Fe) to aid peroxydisulfate (PDS)-activated degradation of oxytetracycline (OTC) under visible light irradiation. The successful embedding of COQDs was confirmed by XRD, FT-IR, XPS, SEM, and TEM techniques. Photoelectrochemical testing confirmed its better performance. The prepared COQDs1/MIL-53(Fe) showed 88.2% decomposition efficiency of OTC in 60 min, which was 1.45 times higher than that of pure MIL-53(Fe). In addition, the performance of the material was tested at different pH, OTC concentrations, catalyst dosing, and PDS dosing. It was also subjected to cyclic testing to check stability. Moreover, free radical trapping experiments and electron paramagnetic resonance were conducted to explore the possible OTC deterioration mechanism. Our work provides a new idea for the development of MOFs for water treatment and remediation.</description><identifier>ISSN: 1614-7499</identifier><identifier>ISSN: 0944-1344</identifier><identifier>EISSN: 1614-7499</identifier><identifier>DOI: 10.1007/s11356-024-32729-9</identifier><identifier>PMID: 38456976</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Aquatic Pollution ; Atmospheric Protection/Air Quality Control/Air Pollution ; Carbon ; Carbon dots ; Catalysts ; Charge transfer ; Degradation ; Dosage ; Earth and Environmental Science ; Ecotoxicology ; Electron paramagnetic resonance ; electron paramagnetic resonance spectroscopy ; Electron spin resonance ; Electron transfer ; Electrons ; Embedding ; Environment ; Environmental Chemistry ; Environmental Health ; Free radicals ; Irradiation ; light ; Light irradiation ; Oxygen ; Oxytetracycline ; Performance enhancement ; Photocatalysis ; Photocatalysts ; Quantum dots ; remediation ; Research Article ; Waste Water Technology ; Water Management ; Water Pollution Control ; Water treatment ; X ray photoelectron spectroscopy</subject><ispartof>Environmental science and pollution research international, 2024-04, Vol.31 (18), p.26686-26698</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024. 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Moreover, free radical trapping experiments and electron paramagnetic resonance were conducted to explore the possible OTC deterioration mechanism. Our work provides a new idea for the development of MOFs for water treatment and remediation.</description><subject>Aquatic Pollution</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Carbon</subject><subject>Carbon dots</subject><subject>Catalysts</subject><subject>Charge transfer</subject><subject>Degradation</subject><subject>Dosage</subject><subject>Earth and Environmental Science</subject><subject>Ecotoxicology</subject><subject>Electron paramagnetic resonance</subject><subject>electron paramagnetic resonance spectroscopy</subject><subject>Electron spin resonance</subject><subject>Electron transfer</subject><subject>Electrons</subject><subject>Embedding</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Health</subject><subject>Free radicals</subject><subject>Irradiation</subject><subject>light</subject><subject>Light irradiation</subject><subject>Oxygen</subject><subject>Oxytetracycline</subject><subject>Performance enhancement</subject><subject>Photocatalysis</subject><subject>Photocatalysts</subject><subject>Quantum dots</subject><subject>remediation</subject><subject>Research Article</subject><subject>Waste Water Technology</subject><subject>Water Management</subject><subject>Water Pollution Control</subject><subject>Water treatment</subject><subject>X ray photoelectron spectroscopy</subject><issn>1614-7499</issn><issn>0944-1344</issn><issn>1614-7499</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNqFkU1v1DAQhiNERUvhD3BAlri0h1B_Jz6iipaVFvVSzpZjjxdXG3trJxL593hJ-RAHOM1I88w77-htmjcEvycYd1eFECZkiylvGe2oatWz5oxIwtuOK_X8j_60eVnKA8YUK9q9aE5Zz4VUnTxrlk1EJUwzKkucvkIJBSWP0rdlB7F16QAOWZOHFNHjbOI0j8ilqSAYB3CuDkNEnzfbVrCLG7hEPmUE3gcbIE7IwS4bZ6ZQt1fRCaZs7GL3IcKr5sSbfYHXT_W8-XLz8f76U7u9u91cf9i2llbrreUUgx9E33eDN2AlH4TsMZcGejowoZhgg-PUUjVYJQWXXApFnHc9EGo9O28uVt1DTo8zlEmPoVjY702ENBfNiOBESsrVf1GqBO-6rp6o6Lu_0Ic051gf0ayaU5XqjxRdKZtTKRm8PuQwmrxogvUxQ71mqGuG-keG-uji7ZP0PIzgfq38DK0CbAVKHcUd5N-3_yH7HTZGpps</recordid><startdate>20240401</startdate><enddate>20240401</enddate><creator>Du, Chunyan</creator><creator>Lv, Yinchu</creator><creator>Yu, Hanbo</creator><creator>Zhang, Yin</creator><creator>Zhu, Hao</creator><creator>Dong, Wei</creator><creator>Zou, Yulv</creator><creator>Peng, Huaiyuan</creator><creator>Zhou, Lu</creator><creator>Wen, Xiaofeng</creator><creator>Cao, Jiao</creator><creator>Jiang, Jingyi</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QL</scope><scope>7SN</scope><scope>7T7</scope><scope>7TV</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>K9.</scope><scope>M7N</scope><scope>P64</scope><scope>7X8</scope><scope>7S9</scope><scope>L.6</scope></search><sort><creationdate>20240401</creationdate><title>In situ synthesis of oxygen-doped carbon quantum dots embedded in MIL-53(Fe) for efficient degradation of oxytetracycline</title><author>Du, Chunyan ; 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Doping heteroatoms such as N, S, or P enable CQDs to have an uplifting electron transfer capability. However, the application of oxygen-doped CQDs to improve the performance of photocatalysts has rarely been reported. Herein, a type of carbon-oxygen quantum dots (COQDs) was in situ embedded into MIL-53(Fe) to aid peroxydisulfate (PDS)-activated degradation of oxytetracycline (OTC) under visible light irradiation. The successful embedding of COQDs was confirmed by XRD, FT-IR, XPS, SEM, and TEM techniques. Photoelectrochemical testing confirmed its better performance. The prepared COQDs1/MIL-53(Fe) showed 88.2% decomposition efficiency of OTC in 60 min, which was 1.45 times higher than that of pure MIL-53(Fe). In addition, the performance of the material was tested at different pH, OTC concentrations, catalyst dosing, and PDS dosing. It was also subjected to cyclic testing to check stability. Moreover, free radical trapping experiments and electron paramagnetic resonance were conducted to explore the possible OTC deterioration mechanism. Our work provides a new idea for the development of MOFs for water treatment and remediation.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>38456976</pmid><doi>10.1007/s11356-024-32729-9</doi><tpages>13</tpages></addata></record> |
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| subjects | Aquatic Pollution Atmospheric Protection/Air Quality Control/Air Pollution Carbon Carbon dots Catalysts Charge transfer Degradation Dosage Earth and Environmental Science Ecotoxicology Electron paramagnetic resonance electron paramagnetic resonance spectroscopy Electron spin resonance Electron transfer Electrons Embedding Environment Environmental Chemistry Environmental Health Free radicals Irradiation light Light irradiation Oxygen Oxytetracycline Performance enhancement Photocatalysis Photocatalysts Quantum dots remediation Research Article Waste Water Technology Water Management Water Pollution Control Water treatment X ray photoelectron spectroscopy |
| title | In situ synthesis of oxygen-doped carbon quantum dots embedded in MIL-53(Fe) for efficient degradation of oxytetracycline |
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