{"title":"羧甲基纤维素辅助制备用于高效铀浓缩的防污磁性金属有机框架纳米复合材料","authors":"Xuejie Guo, Tianjin Gu, Qingyue Wang, Aiqi Wang, Keni Chen, Haocheng Yang","doi":"10.1016/j.matlet.2024.137742","DOIUrl":null,"url":null,"abstract":"<div><div>A magnetic metal–organic frameworks nanocomposite (FCMCZA) was prepared by solvothermal and in situ growth method for efficient antifouling and uranium enrichment. A series of characterization tests were carried out by SEM, XRD, XPS, FTIR and N<sub>2</sub> adsorption–desorption analyses. The FCMCZA exhibited the distinct core–shell structure with high specific surface areas (793.86 m<sup>2</sup>/g) and abundant functional groups. The saturated magnetization and algae death rate of FCMCZA reached 33.5 emu/g and 41 %, respectively. The maximum adsorption capacity of FCMCZA was 238.66 mg/g at pH 8.0, calculated from Langmuir model. Importantly, the removal capacity of FCMCZA remained 87.29 mg/g after four cycles. The high removal rate (62.9 %) and uranium uptake (11.7 μg/g) in actual seawater further proved its application potentiality.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"380 ","pages":"Article 137742"},"PeriodicalIF":2.7000,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Carboxymethyl cellulose-assisted preparation of magnetic metal–organic framework nanocomposites with antifouling for efficient uranium enrichment\",\"authors\":\"Xuejie Guo, Tianjin Gu, Qingyue Wang, Aiqi Wang, Keni Chen, Haocheng Yang\",\"doi\":\"10.1016/j.matlet.2024.137742\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>A magnetic metal–organic frameworks nanocomposite (FCMCZA) was prepared by solvothermal and in situ growth method for efficient antifouling and uranium enrichment. A series of characterization tests were carried out by SEM, XRD, XPS, FTIR and N<sub>2</sub> adsorption–desorption analyses. The FCMCZA exhibited the distinct core–shell structure with high specific surface areas (793.86 m<sup>2</sup>/g) and abundant functional groups. The saturated magnetization and algae death rate of FCMCZA reached 33.5 emu/g and 41 %, respectively. The maximum adsorption capacity of FCMCZA was 238.66 mg/g at pH 8.0, calculated from Langmuir model. Importantly, the removal capacity of FCMCZA remained 87.29 mg/g after four cycles. The high removal rate (62.9 %) and uranium uptake (11.7 μg/g) in actual seawater further proved its application potentiality.</div></div>\",\"PeriodicalId\":384,\"journal\":{\"name\":\"Materials Letters\",\"volume\":\"380 \",\"pages\":\"Article 137742\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-11-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0167577X24018822\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X24018822","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Carboxymethyl cellulose-assisted preparation of magnetic metal–organic framework nanocomposites with antifouling for efficient uranium enrichment
A magnetic metal–organic frameworks nanocomposite (FCMCZA) was prepared by solvothermal and in situ growth method for efficient antifouling and uranium enrichment. A series of characterization tests were carried out by SEM, XRD, XPS, FTIR and N2 adsorption–desorption analyses. The FCMCZA exhibited the distinct core–shell structure with high specific surface areas (793.86 m2/g) and abundant functional groups. The saturated magnetization and algae death rate of FCMCZA reached 33.5 emu/g and 41 %, respectively. The maximum adsorption capacity of FCMCZA was 238.66 mg/g at pH 8.0, calculated from Langmuir model. Importantly, the removal capacity of FCMCZA remained 87.29 mg/g after four cycles. The high removal rate (62.9 %) and uranium uptake (11.7 μg/g) in actual seawater further proved its application potentiality.
期刊介绍:
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive