{"title":"Development of a UiO-66-NH2/cellulose acetate membrane for efficient removal of pharmaceutical contaminants from wastewater","authors":"S. Kazemi, A. Tadjarodi","doi":"10.1007/s13762-025-06408-2","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, we investigate the efficacy of a novel membrane composed of UiO-66-NH<sub>2</sub> metal–organic framework, MOF, and cellulose acetate, CA, namely UiO@CA, synthesized via a casting process, for the removal of pharmaceutical contaminants from wastewater. Specifically, we focus on the removal of Metronidazole, Tetracycline, and Rifampin, as pharmaceutical contaminants. Through rigorous experimentation, we demonstrate the membrane's remarkable capability to adsorb these pharmaceuticals effectively. Our findings reveal that the Langmuir isotherm model and pseudo-second-order kinetic model describe the best adsorption process, indicating a monolayer adsorption mechanism and chemisorption as the rate-limiting step. Furthermore, for Metronidazole (MNZ), Tetracycline (TC), and Rifampin (RIF) with initial concentration of 20 ppm, after 10 min, the membrane exhibited a removal efficiency of 88.74%, 91.74% and 28.3%, respectively, affirming its potential for efficient pharmaceutical wastewater treatment for both Metronidazole and Tetracycline, while Rifampin possessing a large structure which prevents the diffusion of it into the pores of the membrane. This research contributes to advancing sustainable wastewater treatment technologies by providing insights into the design and application of advanced membrane materials for pharmaceutical pollutant removal. The X-ray diffraction (XRD) assessment of the membrane reused after five cycles reveals negligible deterioration, suggesting that CA effectively stabilizes MOF (UiO-66-NH<sub>2</sub>) nanoparticles.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 8","pages":"6681 - 6696"},"PeriodicalIF":3.0000,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Environmental Science and Technology","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s13762-025-06408-2","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
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Abstract
In this study, we investigate the efficacy of a novel membrane composed of UiO-66-NH2 metal–organic framework, MOF, and cellulose acetate, CA, namely UiO@CA, synthesized via a casting process, for the removal of pharmaceutical contaminants from wastewater. Specifically, we focus on the removal of Metronidazole, Tetracycline, and Rifampin, as pharmaceutical contaminants. Through rigorous experimentation, we demonstrate the membrane's remarkable capability to adsorb these pharmaceuticals effectively. Our findings reveal that the Langmuir isotherm model and pseudo-second-order kinetic model describe the best adsorption process, indicating a monolayer adsorption mechanism and chemisorption as the rate-limiting step. Furthermore, for Metronidazole (MNZ), Tetracycline (TC), and Rifampin (RIF) with initial concentration of 20 ppm, after 10 min, the membrane exhibited a removal efficiency of 88.74%, 91.74% and 28.3%, respectively, affirming its potential for efficient pharmaceutical wastewater treatment for both Metronidazole and Tetracycline, while Rifampin possessing a large structure which prevents the diffusion of it into the pores of the membrane. This research contributes to advancing sustainable wastewater treatment technologies by providing insights into the design and application of advanced membrane materials for pharmaceutical pollutant removal. The X-ray diffraction (XRD) assessment of the membrane reused after five cycles reveals negligible deterioration, suggesting that CA effectively stabilizes MOF (UiO-66-NH2) nanoparticles.
期刊介绍：
International Journal of Environmental Science and Technology (IJEST) is an international scholarly refereed research journal which aims to promote the theory and practice of environmental science and technology, innovation, engineering and management.
A broad outline of the journal''s scope includes: peer reviewed original research articles, case and technical reports, reviews and analyses papers, short communications and notes to the editor, in interdisciplinary information on the practice and status of research in environmental science and technology, both natural and man made.
The main aspects of research areas include, but are not exclusive to; environmental chemistry and biology, environments pollution control and abatement technology, transport and fate of pollutants in the environment, concentrations and dispersion of wastes in air, water, and soil, point and non-point sources pollution, heavy metals and organic compounds in the environment, atmospheric pollutants and trace gases, solid and hazardous waste management; soil biodegradation and bioremediation of contaminated sites; environmental impact assessment, industrial ecology, ecological and human risk assessment; improved energy management and auditing efficiency and environmental standards and criteria.
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