Photo‐enhanced uranium recovery from spent fuel reprocessing wastewater via S‐scheme 2D/0D C3N5/Fe2O3 heterojunctions
Abstract Re‐extracting environmentally transportable hexavalent uranium from wastewater produced by spent fuel reprocessing using the photocatalytic technology is a crucial strategy to avoid uranium pollution and recover nuclear fuel strategic resources. Here, we have designed S‐scheme 2D/0D C3N5/Fe...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-04-01
|
| Series: | SusMat |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/sus2.199 |
| _version_ | 1797198588373106688 |
|---|---|
| author | Qi Meng Linzhen Wu Xiaoyong Yang Ying Xiong Fanpeng Kong Tao Duan |
| author_facet | Qi Meng Linzhen Wu Xiaoyong Yang Ying Xiong Fanpeng Kong Tao Duan |
| author_sort | Qi Meng |
| collection | DOAJ |
| description | Abstract Re‐extracting environmentally transportable hexavalent uranium from wastewater produced by spent fuel reprocessing using the photocatalytic technology is a crucial strategy to avoid uranium pollution and recover nuclear fuel strategic resources. Here, we have designed S‐scheme 2D/0D C3N5/Fe2O3 heterojunction photocatalysts based on the built‐in electric field and the energy band bending theory, and have further revealed the immobilization process of hexavalent uranium conversion into relatively insoluble tetravalent uranium in terms of thermodynamics and kinetics. According to the results, the hexavalent uranium removal and recovery ratios in wastewater are as high as 93.38% and 83.58%, respectively. Besides, C3N5/Fe2O3 heterojunctions also exhibit satisfactory catalytic activity and selectivity even in the presence of excessive impurity cations (including Na+, K+, Ca2+, Mg2+, Sr2+, and Eu3+) or various organics (such as xylene, tributylphosphate, pyridine, tannic acid, citric acid, and oxalic acid). It is believed that this work can provide a potential opportunity for S‐scheme heterojunction photocatalysts to re‐enrich uranium from spent fuel wastewater. |
| first_indexed | 2024-04-24T07:02:15Z |
| format | Article |
| id | doaj.art-9cc1d8102e7b48f4a5edcedfb6d1bba2 |
| institution | Directory Open Access Journal |
| issn | 2692-4552 |
| language | English |
| last_indexed | 2024-04-24T07:02:15Z |
| publishDate | 2024-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | SusMat |
| spelling | doaj.art-9cc1d8102e7b48f4a5edcedfb6d1bba22024-04-22T07:52:12ZengWileySusMat2692-45522024-04-0142n/an/a10.1002/sus2.199Photo‐enhanced uranium recovery from spent fuel reprocessing wastewater via S‐scheme 2D/0D C3N5/Fe2O3 heterojunctionsQi Meng0Linzhen Wu1Xiaoyong Yang2Ying Xiong3Fanpeng Kong4Tao Duan5State Key Laboratory of Environment‐friendly Energy Materials, Nuclear Waste and Environmental Safety Key Laboratory of Defense Southwest University of Science and Technology Mianyang Sichuan ChinaState Key Laboratory of Environment‐friendly Energy Materials, Nuclear Waste and Environmental Safety Key Laboratory of Defense Southwest University of Science and Technology Mianyang Sichuan ChinaState Key Laboratory of Environment‐friendly Energy Materials, Nuclear Waste and Environmental Safety Key Laboratory of Defense Southwest University of Science and Technology Mianyang Sichuan ChinaState Key Laboratory of Environment‐friendly Energy Materials, Nuclear Waste and Environmental Safety Key Laboratory of Defense Southwest University of Science and Technology Mianyang Sichuan ChinaMIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage Harbin Institute of Technology Harbin Heilongjiang ChinaState Key Laboratory of Environment‐friendly Energy Materials, Nuclear Waste and Environmental Safety Key Laboratory of Defense Southwest University of Science and Technology Mianyang Sichuan ChinaAbstract Re‐extracting environmentally transportable hexavalent uranium from wastewater produced by spent fuel reprocessing using the photocatalytic technology is a crucial strategy to avoid uranium pollution and recover nuclear fuel strategic resources. Here, we have designed S‐scheme 2D/0D C3N5/Fe2O3 heterojunction photocatalysts based on the built‐in electric field and the energy band bending theory, and have further revealed the immobilization process of hexavalent uranium conversion into relatively insoluble tetravalent uranium in terms of thermodynamics and kinetics. According to the results, the hexavalent uranium removal and recovery ratios in wastewater are as high as 93.38% and 83.58%, respectively. Besides, C3N5/Fe2O3 heterojunctions also exhibit satisfactory catalytic activity and selectivity even in the presence of excessive impurity cations (including Na+, K+, Ca2+, Mg2+, Sr2+, and Eu3+) or various organics (such as xylene, tributylphosphate, pyridine, tannic acid, citric acid, and oxalic acid). It is believed that this work can provide a potential opportunity for S‐scheme heterojunction photocatalysts to re‐enrich uranium from spent fuel wastewater.https://doi.org/10.1002/sus2.199nuclear wastewaterS‐scheme heterostructureuranium recovery |
| spellingShingle | Qi Meng Linzhen Wu Xiaoyong Yang Ying Xiong Fanpeng Kong Tao Duan Photo‐enhanced uranium recovery from spent fuel reprocessing wastewater via S‐scheme 2D/0D C3N5/Fe2O3 heterojunctions SusMat nuclear wastewater S‐scheme heterostructure uranium recovery |
| title | Photo‐enhanced uranium recovery from spent fuel reprocessing wastewater via S‐scheme 2D/0D C3N5/Fe2O3 heterojunctions |
| title_full | Photo‐enhanced uranium recovery from spent fuel reprocessing wastewater via S‐scheme 2D/0D C3N5/Fe2O3 heterojunctions |
| title_fullStr | Photo‐enhanced uranium recovery from spent fuel reprocessing wastewater via S‐scheme 2D/0D C3N5/Fe2O3 heterojunctions |
| title_full_unstemmed | Photo‐enhanced uranium recovery from spent fuel reprocessing wastewater via S‐scheme 2D/0D C3N5/Fe2O3 heterojunctions |
| title_short | Photo‐enhanced uranium recovery from spent fuel reprocessing wastewater via S‐scheme 2D/0D C3N5/Fe2O3 heterojunctions |
| title_sort | photo enhanced uranium recovery from spent fuel reprocessing wastewater via s scheme 2d 0d c3n5 fe2o3 heterojunctions |
| topic | nuclear wastewater S‐scheme heterostructure uranium recovery |
| url | https://doi.org/10.1002/sus2.199 |
| work_keys_str_mv | AT qimeng photoenhanceduraniumrecoveryfromspentfuelreprocessingwastewaterviasscheme2d0dc3n5fe2o3heterojunctions AT linzhenwu photoenhanceduraniumrecoveryfromspentfuelreprocessingwastewaterviasscheme2d0dc3n5fe2o3heterojunctions AT xiaoyongyang photoenhanceduraniumrecoveryfromspentfuelreprocessingwastewaterviasscheme2d0dc3n5fe2o3heterojunctions AT yingxiong photoenhanceduraniumrecoveryfromspentfuelreprocessingwastewaterviasscheme2d0dc3n5fe2o3heterojunctions AT fanpengkong photoenhanceduraniumrecoveryfromspentfuelreprocessingwastewaterviasscheme2d0dc3n5fe2o3heterojunctions AT taoduan photoenhanceduraniumrecoveryfromspentfuelreprocessingwastewaterviasscheme2d0dc3n5fe2o3heterojunctions |