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可用于支撑液膜的可及性银-氧化铁纳米颗粒作为一种纳米材料

Accessible Silver-Iron Oxide Nanoparticles as a Nanomaterial for Supported Liquid Membranes.

作者信息

Dimulescu Nica Ioana Alina, Nechifor Aurelia Cristina, Bǎrdacǎ Urducea Cristina, Oprea Ovidiu, Paşcu Dumitru, Totu Eugenia Eftimie, Albu Paul Constantin, Nechifor Gheorghe, Bungău Simona Gabriela

机构信息

Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania.

Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, University Politehnica of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania.

出版信息

Nanomaterials (Basel). 2021 May 1;11(5):1204. doi: 10.3390/nano11051204.

DOI:10.3390/nano11051204
PMID:34062891
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8147404/
Abstract

The present study introduces the process performances of nitrophenols pertraction using new liquid supported membranes under the action of a magnetic field. The membrane system is based on the dispersion of silver-iron oxide nanoparticles in n-alcohols supported on hollow microporous polypropylene fibers. The iron oxide-silver nanoparticles are obtained directly through cyclic voltammetry electrolysis run in the presence of soluble silver complexes ([AgCl]; [Ag(SO)]; [Ag(NH)]) and using pure iron electrodes. The nanostructured particles are characterized morphologically and structurally by scanning electron microscopy (SEM and HFSEM), EDAX, XRD, and thermal analysis (TG, DSC). The performances of the nitrophenols permeation process are investigated in a variable magnetic field. These studies show that the flux and extraction efficiency have the highest values for the membrane system embedding iron oxide-silver nanoparticles obtained electrochemically in the presence of [Ag(NH)] electrolyte. It is demonstrated that the total flow of nitrophenols through the new membrane system depends on diffusion, convection, and silver-assisted transport.

摘要

本研究介绍了在磁场作用下使用新型液载膜萃取硝基酚的工艺性能。该膜系统基于负载在中空微孔聚丙烯纤维上的银 - 氧化铁纳米颗粒在正醇中的分散体。氧化铁 - 银纳米颗粒是通过在可溶性银配合物（[AgCl]；[Ag(SO)]；[Ag(NH)]）存在下运行的循环伏安电解法，并使用纯铁电极直接获得的。通过扫描电子显微镜（SEM和HFSEM）、能谱分析（EDAX）、X射线衍射（XRD）和热分析（TG、DSC）对纳米结构颗粒进行形态和结构表征。在可变磁场中研究了硝基酚渗透过程的性能。这些研究表明，对于在[Ag(NH)]电解质存在下通过电化学方法获得的嵌入氧化铁 - 银纳米颗粒的膜系统，通量和萃取效率具有最高值。结果表明，硝基酚通过新膜系统的总流量取决于扩散、对流和银辅助传输。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/6645c40c86ba/nanomaterials-11-01204-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/f7f9464f01e7/nanomaterials-11-01204-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/8a3d42d04d9e/nanomaterials-11-01204-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/217496270511/nanomaterials-11-01204-g003a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/97520751431d/nanomaterials-11-01204-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/95f4e8b134e6/nanomaterials-11-01204-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/917df7e3a2e0/nanomaterials-11-01204-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/b01ec7dcc437/nanomaterials-11-01204-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/6645c40c86ba/nanomaterials-11-01204-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/f7f9464f01e7/nanomaterials-11-01204-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/8a3d42d04d9e/nanomaterials-11-01204-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/217496270511/nanomaterials-11-01204-g003a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/97520751431d/nanomaterials-11-01204-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/95f4e8b134e6/nanomaterials-11-01204-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/917df7e3a2e0/nanomaterials-11-01204-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/b01ec7dcc437/nanomaterials-11-01204-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7512/8147404/6645c40c86ba/nanomaterials-11-01204-g008.jpg

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