{"title":"GO 对掺杂 TiO2 的 PVDF 纳滤膜性能的影响：大分子和小分子的协同过滤促进了小分子污染物的去除","authors":"Jiacang Fei","doi":"10.1134/s1028334x24601329","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>In this study, the synthesis of poly(vinylidene fluoride) composite membranes incorporated with titania (TiO<sub>2</sub>) nanoparticles and graphene oxide (GO) was demonstrated. The effect of GO on the surface morphology of the membrane was observed by scanning electron microscopy, indicating the typical membrane looseness and porosity caused by GO. The chemical properties and composition of the membrane were confirmed by X-ray diffraction and Fourier transform infrared spectroscopy, indicating the as-prepared membrane materials with reasonably doped TiO<sub>2</sub> and GO. The effect of the amount of doped GO on the microstructure and performance of the PVDF/TiO<sub>2</sub>/GO membrane was systematically investigated. GO enhances the flux of the PVDF membrane in the early filtration stage and enhances the retention of pollutants. In addition, it was found that the synergistic filtration of large and small molecules improved the removal of small molecule contaminants. Therefore, the results of this study offered a new technology for the synergistic treatment of dye wastewater with macromolecule pollutants.</p>","PeriodicalId":11352,"journal":{"name":"Doklady Earth Sciences","volume":"13 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Effect of GO on TiO2-doped PVDF Nanofiltration Membrane Performance: Synergistic Filtration of Large and Small Molecules Facilitated the Removal of Small Molecule Contaminants\",\"authors\":\"Jiacang Fei\",\"doi\":\"10.1134/s1028334x24601329\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Abstract</h3><p>In this study, the synthesis of poly(vinylidene fluoride) composite membranes incorporated with titania (TiO<sub>2</sub>) nanoparticles and graphene oxide (GO) was demonstrated. The effect of GO on the surface morphology of the membrane was observed by scanning electron microscopy, indicating the typical membrane looseness and porosity caused by GO. The chemical properties and composition of the membrane were confirmed by X-ray diffraction and Fourier transform infrared spectroscopy, indicating the as-prepared membrane materials with reasonably doped TiO<sub>2</sub> and GO. The effect of the amount of doped GO on the microstructure and performance of the PVDF/TiO<sub>2</sub>/GO membrane was systematically investigated. GO enhances the flux of the PVDF membrane in the early filtration stage and enhances the retention of pollutants. In addition, it was found that the synergistic filtration of large and small molecules improved the removal of small molecule contaminants. Therefore, the results of this study offered a new technology for the synergistic treatment of dye wastewater with macromolecule pollutants.</p>\",\"PeriodicalId\":11352,\"journal\":{\"name\":\"Doklady Earth Sciences\",\"volume\":\"13 1\",\"pages\":\"\"},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2024-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Doklady Earth Sciences\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.1134/s1028334x24601329\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"GEOSCIENCES, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Doklady Earth Sciences","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1134/s1028334x24601329","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
摘要 在这项研究中，展示了掺入二氧化钛（TiO2）纳米颗粒和氧化石墨烯（GO）的聚偏氟乙烯复合膜的合成。通过扫描电子显微镜观察了 GO 对膜表面形貌的影响，结果表明 GO 使膜具有典型的疏松性和多孔性。X 射线衍射和傅立叶变换红外光谱证实了膜的化学性质和成分，表明制备的膜材料中含有合理掺杂的 TiO2 和 GO。系统研究了掺入量对 PVDF/TiO2/GO 膜微观结构和性能的影响。GO 提高了 PVDF 膜在早期过滤阶段的通量，并增强了对污染物的截留。此外，研究还发现大分子和小分子的协同过滤提高了小分子污染物的去除率。因此，该研究结果为染料废水与大分子污染物的协同处理提供了一种新技术。
The Effect of GO on TiO2-doped PVDF Nanofiltration Membrane Performance: Synergistic Filtration of Large and Small Molecules Facilitated the Removal of Small Molecule Contaminants
Abstract
In this study, the synthesis of poly(vinylidene fluoride) composite membranes incorporated with titania (TiO2) nanoparticles and graphene oxide (GO) was demonstrated. The effect of GO on the surface morphology of the membrane was observed by scanning electron microscopy, indicating the typical membrane looseness and porosity caused by GO. The chemical properties and composition of the membrane were confirmed by X-ray diffraction and Fourier transform infrared spectroscopy, indicating the as-prepared membrane materials with reasonably doped TiO2 and GO. The effect of the amount of doped GO on the microstructure and performance of the PVDF/TiO2/GO membrane was systematically investigated. GO enhances the flux of the PVDF membrane in the early filtration stage and enhances the retention of pollutants. In addition, it was found that the synergistic filtration of large and small molecules improved the removal of small molecule contaminants. Therefore, the results of this study offered a new technology for the synergistic treatment of dye wastewater with macromolecule pollutants.
期刊介绍：
Doklady Earth Sciences is a journal that publishes new research in Earth science of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.
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