Design of a Semi-Continuous Selective Layer Based on Deposition of UiO-66 Nanoparticles for Nanofiltration
| Autor: | Goji Yildun Shangkum, Patchanee Chammingkwan, Toshiaki Taniike, Dai Xuan Trinh |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Nanoparticle Filtration and Separation 02 engineering and technology lcsh:Chemical technology 010402 general chemistry 01 natural sciences Article law.invention metal–organic framework law composite membrane Chemical Engineering (miscellaneous) Deposition (phase transition) lcsh:TP1-1185 lcsh:Chemical engineering Filtration chemistry.chemical_classification nanoparticle Process Chemistry and Technology water filtration lcsh:TP155-156 Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences Membrane chemistry Chemical engineering UiO-66 Particle Nanofiltration 0210 nano-technology Layer (electronics) |
| Zdroj: | Membranes Volume 8 Issue 4 Membranes, Vol 8, Iss 4, p 129 (2018) |
| ISSN: | 2077-0375 |
| DOI: | 10.3390/membranes8040129 |
| Popis: | Deposition of UiO-66 metal&ndash organic framework nanoparticles onto a porous polymer support is a promising approach to designing highly-permeable, size-selective, flexible, and stable membranes for water filtration. In this article, a series of UiO-66 nanoparticles having different particle sizes were synthesized and employed to prepare UiO-66-deposited composite membranes. It was found that the size of the UiO-66 nanoparticles had great influences on the performance of the composite membranes for the filtration of a methylene blue aqueous solution. The deposition of smaller nanoparticles afforded a selective layer having a greater external surface area and narrower interparticle voids. These features made the deposition of smaller nanoparticles more advantageous in terms of the flux and rejection, while the deposition of greater nanoparticles afforded a selective layer more tolerant for fouling. Bimodal composite membranes were prepared by depositing mixed UiO-66 nanoparticles of smaller and bigger sizes. These membranes successfully combined the advantages of nanoparticles of a distinct size. |
| Databáze: | OpenAIRE |
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