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| DOI | 10.1016/j.apsusc.2019.03.330 |
| Heterostructure of anatase-rutile aggregates boosting the photoreduction of U(VI) | |
| Li P.; Wang J.; Peng T.; Wang Y.; Liang J.; Pan D.; Fan Q. | |
| 发表日期 | 2019 |
| ISSN | 01694332 |
| 卷号 | 483 |
| 英文摘要 | The photoreduction of uranium over TiO 2 provides an important pathway to uranium resource utilization and pollution abatement. However, the impact of the TiO 2 crystalline type on photocatalytic reduction of U(VI) is still unclear. In this study, the influence of crystal type of TiO 2 on U(VI) photoreduction was studied. The results showed that rutile was more reactive for the photocatalytic reduction of U(VI) than anatase. Interestingly, an obvious synergistic effect was observed for mechanically mixed rutile-anatase and the photoconverted UO 2 particles preferred to precipitate on rutile surface. The optimum efficiency was achieved for the mixture containing 30 wt% anatase and 70 wt% rutile. The anatase {101} planes tended to match up with rutile {110} facets after the two minerals were mixed. The formation of rutile-anatase aggregates led to the transfer of photogenerated electrons from anatase to rutile. This process could prolong the lifetime of carriers, facilitating U(VI) reduction. © 2019 |
| 英文关键词 | Alignment; Anatase; Photoreduction; Rutile; Uranium |
| URL | https://www2.scopus.com/inward/record.uri?eid=2-s2.0-85063882065&doi=10.1016%2fj.apsusc.2019.03.330&partnerID=40&md5=376b3c0a5bb539c559a24488867b6c36 |
| 语种 | 英语 |
| scopus关键词 | Aggregates; Alignment; Oxide minerals; Uranium; Uranium dioxide; Optimum efficiency; Photo-reduction; Photocatalytic reduction; Photogenerated electrons; Pollution abatement; Rutile; Synergistic effect; Uranium resources; Titanium dioxide |
| 来源期刊 | Applied Surface Science
 |
| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/77247 |
| 推荐引用方式 GB/T 7714 | Li P.； Wang J.； Peng T.； Wang Y.； Liang J.； Pan D.； Fan Q.. Heterostructure of anatase-rutile aggregates boosting the photoreduction of U(VI)[J]. 中国科学院西北生态环境资源研究院,2019,483. |
| APA | Li P.； Wang J.； Peng T.； Wang Y.； Liang J.； Pan D.； Fan Q..(2019).Heterostructure of anatase-rutile aggregates boosting the photoreduction of U(VI).Applied Surface Science,483. |
| MLA | Li P.； Wang J.； Peng T.； Wang Y.； Liang J.； Pan D.； Fan Q.."Heterostructure of anatase-rutile aggregates boosting the photoreduction of U(VI)".Applied Surface Science 483(2019). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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