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Improving dye removal and antifouling performance of polysulfone nanofiltration membranes by incorporation of UiO-66 metal-organic framework
, Article Journal of Environmental Chemical Engineering ; Volume 10, Issue 3 , 2022 ; 22133437 (ISSN) ; Mousavi, S. A ; Shokrgozar, A ; Mousavi, D. V ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
In the present work, a series of polysulfone (PSf) mixed-matrix nanofiltration membranes containing highly water stable UiO-66 metal-organic framework (MOF) were prepared via a simple phase inversion technique. At first, UiO-66 particles were synthesized via a solvothermal technique, activated via two various activation methods, including Soxhlet extraction and centrifugation methods. Then their adsorption performance was investigated for adsorption of anionic methyl orange (MO)/methyl red (MR) and cationic methylene blue (MB)/malachite green (MG) dyes from water. The activated UiO-66 particles via the Soxhlet extraction method (named S-UiO-66) showed better performance for dye adsorption...
Synthesis and Modification of ZnFe2O4 Nanoparticles Surface for Separation of Pigments
, M.Sc. Thesis Sharif University of Technology ; Bastani, Dariush (Supervisor) ; Mahmoodi, Niyaz Mohammad (Co-Advisor)
Abstract
It is necessary to monitor pollutants in aquatic samples, because many of these compounds can pose threats to human health and the ecosystem. Separation technology based on magnetic materials has received considerable attention in recent years. The magnetic extraction method is not only convenient, economical and highly efficient, but it also overcomes problems with conventional solid-phase extraction. In order to remove anionic dyes from single and ternary systems, zinc ferrite nanoparticle was synthesized using co-precipitation method and its surface was modified by Cetyltrimethyl ammonium bromide (CTAB) cationic surfactant. Surface characteristics of ZFN-CTAB was studied using Fourier...