{"title":"Kocuria rosea 通过植酸盐水解作用提高铀(VI)的生物矿化能力","authors":"Jiarui Qu, Xuegang Wang, Xueqin Zhou, Shuo Sun, Chao Liu, Jian Wang, Xiaoxia Yu, Zhongkui Zhou, Yadan Guo","doi":"10.1007/s10967-024-09741-x","DOIUrl":null,"url":null,"abstract":"<p>In this study, the mechanism by which <i>Kocuria rosea</i> immobilizes U(VI) ions in water via phytate hydrolysis was investigated. The results showed that the optimal initial pH value is 6.0 for uranium removal by <i>K. rosea</i> in the presence of phytate, SEM showed that phytate addition to the test system enhanced the particle sizes of uranium-containing crystalline products, XRD and XPS analyses revealed that in the presence of phytate, <i>K. rosea</i> precipitated uranium primarily as H<sub>2</sub>(UO<sub>2</sub>)<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>·8H<sub>2</sub>O, CaU(PO<sub>4</sub>)<sub>2</sub> and Na(UO<sub>2</sub>)(PO<sub>4</sub>)·3H<sub>2</sub>O. FT-IR spectroscopy also indicated that phytate hydrolysis resulted in the release of more phosphorus groups, thus enhanced the interaction between uranium and <i>K. rosea</i>. Taken together, phytate enhanced biomineralization while reducing the restoration cycle of uranium and increasing the size of uranium-containing crystalline particles in the products.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.5000,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhanced U(VI) biomineralization by Kocuria rosea via phytate hydrolysis\",\"authors\":\"Jiarui Qu, Xuegang Wang, Xueqin Zhou, Shuo Sun, Chao Liu, Jian Wang, Xiaoxia Yu, Zhongkui Zhou, Yadan Guo\",\"doi\":\"10.1007/s10967-024-09741-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>In this study, the mechanism by which <i>Kocuria rosea</i> immobilizes U(VI) ions in water via phytate hydrolysis was investigated. The results showed that the optimal initial pH value is 6.0 for uranium removal by <i>K. rosea</i> in the presence of phytate, SEM showed that phytate addition to the test system enhanced the particle sizes of uranium-containing crystalline products, XRD and XPS analyses revealed that in the presence of phytate, <i>K. rosea</i> precipitated uranium primarily as H<sub>2</sub>(UO<sub>2</sub>)<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>·8H<sub>2</sub>O, CaU(PO<sub>4</sub>)<sub>2</sub> and Na(UO<sub>2</sub>)(PO<sub>4</sub>)·3H<sub>2</sub>O. FT-IR spectroscopy also indicated that phytate hydrolysis resulted in the release of more phosphorus groups, thus enhanced the interaction between uranium and <i>K. rosea</i>. Taken together, phytate enhanced biomineralization while reducing the restoration cycle of uranium and increasing the size of uranium-containing crystalline particles in the products.</p>\",\"PeriodicalId\":661,\"journal\":{\"name\":\"Journal of Radioanalytical and Nuclear Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-09-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Radioanalytical and Nuclear Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1007/s10967-024-09741-x\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, ANALYTICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Radioanalytical and Nuclear Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s10967-024-09741-x","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
Enhanced U(VI) biomineralization by Kocuria rosea via phytate hydrolysis
In this study, the mechanism by which Kocuria rosea immobilizes U(VI) ions in water via phytate hydrolysis was investigated. The results showed that the optimal initial pH value is 6.0 for uranium removal by K. rosea in the presence of phytate, SEM showed that phytate addition to the test system enhanced the particle sizes of uranium-containing crystalline products, XRD and XPS analyses revealed that in the presence of phytate, K. rosea precipitated uranium primarily as H2(UO2)2(PO4)2·8H2O, CaU(PO4)2 and Na(UO2)(PO4)·3H2O. FT-IR spectroscopy also indicated that phytate hydrolysis resulted in the release of more phosphorus groups, thus enhanced the interaction between uranium and K. rosea. Taken together, phytate enhanced biomineralization while reducing the restoration cycle of uranium and increasing the size of uranium-containing crystalline particles in the products.
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An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.
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