{"title":"磁性 MnFe2O4/ZnFe-LDH 用于增强水中磷酸盐和六价铬的去除。","authors":"Congxin Huang, Chaochun Tang, Qingqing Wu, Qing Zhu","doi":"10.1007/s11356-022-20049-9","DOIUrl":null,"url":null,"abstract":"<p><p>Due to the layered structure and recycling characteristics, magnetic MnFe<sub>2</sub>O<sub>4</sub>/ZnFe-LDH was prepared by co-precipitation. In this study, we intensively explored MnFe<sub>2</sub>O<sub>4</sub>/ZnFe-LDH for water purification compared with the ZnFe-LDH. The morphological and structural characteristics of the obtained products were systematically characterized. MnFe<sub>2</sub>O<sub>4</sub>/ZnFe-LDH exhibits the maximum adsorption capacity of 94.52 mg/g for phosphate and 49.03 mg/g for Cr (VI), respectively, which is superior to that of the ZnFe-LDH, indicating that the magnetic MnFe<sub>2</sub>O<sub>4</sub> effectively enhanced adsorption performance. Meanwhile, the mechanism of adsorption of phosphate and Cr (VI) was briefly studied, where the metal center ion in MnFe<sub>2</sub>O<sub>4</sub>/ZnFe-LDH and between layers of SO<sub>4</sub><sup>2-</sup> serves as capture sites for phosphate and Cr (VI) removal. Furthermore, the MnFe<sub>2</sub>O<sub>4</sub>/ZnFe-LDH can be used for magnetic recycled and still maintained excellent removal efficiency (70%) for phosphate and Cr (VI) after five adsorption-desorption cycles. This work could open a new vista of designing magnetic novel adsorbents in environmental remediation.</p>","PeriodicalId":47837,"journal":{"name":"Human Development","volume":"45 1","pages":"59224-59234"},"PeriodicalIF":4.4000,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Magnetic MnFe<sub>2</sub>O<sub>4</sub>/ZnFe-LDH for Enhanced Phosphate and Cr (VI) Removal from Water.\",\"authors\":\"Congxin Huang, Chaochun Tang, Qingqing Wu, Qing Zhu\",\"doi\":\"10.1007/s11356-022-20049-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Due to the layered structure and recycling characteristics, magnetic MnFe<sub>2</sub>O<sub>4</sub>/ZnFe-LDH was prepared by co-precipitation. In this study, we intensively explored MnFe<sub>2</sub>O<sub>4</sub>/ZnFe-LDH for water purification compared with the ZnFe-LDH. The morphological and structural characteristics of the obtained products were systematically characterized. MnFe<sub>2</sub>O<sub>4</sub>/ZnFe-LDH exhibits the maximum adsorption capacity of 94.52 mg/g for phosphate and 49.03 mg/g for Cr (VI), respectively, which is superior to that of the ZnFe-LDH, indicating that the magnetic MnFe<sub>2</sub>O<sub>4</sub> effectively enhanced adsorption performance. Meanwhile, the mechanism of adsorption of phosphate and Cr (VI) was briefly studied, where the metal center ion in MnFe<sub>2</sub>O<sub>4</sub>/ZnFe-LDH and between layers of SO<sub>4</sub><sup>2-</sup> serves as capture sites for phosphate and Cr (VI) removal. Furthermore, the MnFe<sub>2</sub>O<sub>4</sub>/ZnFe-LDH can be used for magnetic recycled and still maintained excellent removal efficiency (70%) for phosphate and Cr (VI) after five adsorption-desorption cycles. This work could open a new vista of designing magnetic novel adsorbents in environmental remediation.</p>\",\"PeriodicalId\":47837,\"journal\":{\"name\":\"Human Development\",\"volume\":\"45 1\",\"pages\":\"59224-59234\"},\"PeriodicalIF\":4.4000,\"publicationDate\":\"2022-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Human Development\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1007/s11356-022-20049-9\",\"RegionNum\":2,\"RegionCategory\":\"心理学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2022/4/5 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"PSYCHOLOGY, DEVELOPMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Human Development","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1007/s11356-022-20049-9","RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/4/5 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"PSYCHOLOGY, DEVELOPMENTAL","Score":null,"Total":0}
Magnetic MnFe2O4/ZnFe-LDH for Enhanced Phosphate and Cr (VI) Removal from Water.
Due to the layered structure and recycling characteristics, magnetic MnFe2O4/ZnFe-LDH was prepared by co-precipitation. In this study, we intensively explored MnFe2O4/ZnFe-LDH for water purification compared with the ZnFe-LDH. The morphological and structural characteristics of the obtained products were systematically characterized. MnFe2O4/ZnFe-LDH exhibits the maximum adsorption capacity of 94.52 mg/g for phosphate and 49.03 mg/g for Cr (VI), respectively, which is superior to that of the ZnFe-LDH, indicating that the magnetic MnFe2O4 effectively enhanced adsorption performance. Meanwhile, the mechanism of adsorption of phosphate and Cr (VI) was briefly studied, where the metal center ion in MnFe2O4/ZnFe-LDH and between layers of SO42- serves as capture sites for phosphate and Cr (VI) removal. Furthermore, the MnFe2O4/ZnFe-LDH can be used for magnetic recycled and still maintained excellent removal efficiency (70%) for phosphate and Cr (VI) after five adsorption-desorption cycles. This work could open a new vista of designing magnetic novel adsorbents in environmental remediation.
期刊介绍：
Distinguished by its international recognition since 1958, "Human Development" publishes in-depth conceptual articles, commentaries, and essay book reviews that advance our understanding of developmental phenomena. Contributions serve to raise theoretical issues, flesh out interesting and potentially powerful ideas, and differentiate key constructs. Contributions are welcomed from varied disciplines, including anthropology, biology, education, history, philosophy, psychology, and sociology.
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