Preparation of ZnO/g-C3N4 composite photocatalyst and photocatalytic reduction of U(Ⅵ)
Based on ZnO and melamine, the ZnO/g-C3N4 for photocatalytic U(Ⅵ) reduction was pre-pared by thermal polymerization methods. The surface morphology, lattice structure, element composition and photocatalytic efficiency were analyzed by SEM, XRD, XPS, PL and UV-Vis methods.The results show that the do...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2022-10-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.001009 |
| _version_ | 1797963675941732352 |
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| author | LEI Ming LIU Yuelin XIE Shuibo GE Yujie LIU Yingjiu |
| author_facet | LEI Ming LIU Yuelin XIE Shuibo GE Yujie LIU Yingjiu |
| author_sort | LEI Ming |
| collection | DOAJ |
| description | Based on ZnO and melamine, the ZnO/g-C3N4 for photocatalytic U(Ⅵ) reduction was pre-pared by thermal polymerization methods. The surface morphology, lattice structure, element composition and photocatalytic efficiency were analyzed by SEM, XRD, XPS, PL and UV-Vis methods.The results show that the doping of ZnO reduces the recombination rate of photogenerated electrons and holes, expands the response range of the material to visible light, makes ZnO/g-C3N4 have higher photocatalytic activity. When pH=5 and dosage is 0.5 g/L, the highest U(Ⅵ) removal rate can reach 97% after dark reaction for 30 min and light reaction for 30 min. The U(Ⅵ) on the surface of the photocatalyst can be reduced to U(Ⅳ). The photoelectron e- is the main factor for reducing U(Ⅵ) to U(Ⅳ). |
| first_indexed | 2024-04-11T01:33:04Z |
| format | Article |
| id | doaj.art-e033df8d245143efb7e59fa1df76e078 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T01:33:04Z |
| publishDate | 2022-10-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-e033df8d245143efb7e59fa1df76e0782023-01-03T09:30:10ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43812022-10-01501015716410.11868/j.issn.1001-4381.2020.00100920221017Preparation of ZnO/g-C3N4 composite photocatalyst and photocatalytic reduction of U(Ⅵ)LEI Ming0LIU Yuelin1XIE Shuibo2GE Yujie3LIU Yingjiu4School of Civil Engineering, University of South China, Hengyang 421001, Hunan, ChinaHunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang 421001, Hunan, ChinaSchool of Civil Engineering, University of South China, Hengyang 421001, Hunan, ChinaSchool of Civil Engineering, University of South China, Hengyang 421001, Hunan, ChinaSchool of Civil Engineering, University of South China, Hengyang 421001, Hunan, ChinaBased on ZnO and melamine, the ZnO/g-C3N4 for photocatalytic U(Ⅵ) reduction was pre-pared by thermal polymerization methods. The surface morphology, lattice structure, element composition and photocatalytic efficiency were analyzed by SEM, XRD, XPS, PL and UV-Vis methods.The results show that the doping of ZnO reduces the recombination rate of photogenerated electrons and holes, expands the response range of the material to visible light, makes ZnO/g-C3N4 have higher photocatalytic activity. When pH=5 and dosage is 0.5 g/L, the highest U(Ⅵ) removal rate can reach 97% after dark reaction for 30 min and light reaction for 30 min. The U(Ⅵ) on the surface of the photocatalyst can be reduced to U(Ⅳ). The photoelectron e- is the main factor for reducing U(Ⅵ) to U(Ⅳ).http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.001009photocatalysisu(ⅵ)g-c3n4znophotoelectron |
| spellingShingle | LEI Ming LIU Yuelin XIE Shuibo GE Yujie LIU Yingjiu Preparation of ZnO/g-C3N4 composite photocatalyst and photocatalytic reduction of U(Ⅵ) Cailiao gongcheng photocatalysis u(ⅵ) g-c3n4 zno photoelectron |
| title | Preparation of ZnO/g-C3N4 composite photocatalyst and photocatalytic reduction of U(Ⅵ) |
| title_full | Preparation of ZnO/g-C3N4 composite photocatalyst and photocatalytic reduction of U(Ⅵ) |
| title_fullStr | Preparation of ZnO/g-C3N4 composite photocatalyst and photocatalytic reduction of U(Ⅵ) |
| title_full_unstemmed | Preparation of ZnO/g-C3N4 composite photocatalyst and photocatalytic reduction of U(Ⅵ) |
| title_short | Preparation of ZnO/g-C3N4 composite photocatalyst and photocatalytic reduction of U(Ⅵ) |
| title_sort | preparation of zno g c3n4 composite photocatalyst and photocatalytic reduction of u vi |
| topic | photocatalysis u(ⅵ) g-c3n4 zno photoelectron |
| url | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.001009 |
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