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Hokkaido University Collection of Scholarly and Academic Papers >
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Influence of carbohydrate polymer shaping on organic dye adsorption by a metal-organic framework in water
| Title: | Influence of carbohydrate polymer shaping on organic dye adsorption by a metal-organic framework in water |
| Authors: | Tanimoto, Yutaro Browse this author | | Noro, Shin-ichiro Browse this author →KAKEN DB |
| Issue Date: | 6-Jul-2021 |
| Publisher: | Royal Society of Chemistry |
| Journal Title: | RSC Advances |
| Volume: | 11 |
| Issue: | 38 |
| Start Page: | 23707 |
| End Page: | 23713 |
| Publisher DOI: | 10.1039/d1ra03348d |
| Abstract: | A number of studies have been conducted to develop new metal-organic frameworks (MOFs) as adsorbents for the removal of contaminants from polluted water. However, few reports exist describing detailed and thorough examinations of the effects of shaping on the adsorption properties of MOFs. In this study, a thorough analysis and comparison was conducted of the Orange II and Rhodamine B dye adsorption properties of unshaped MIL-100(Fe) (MIL) particles and alginate polymer-shaped MIL beads (MIL-alg). The adsorption affinities of Orange II and Rhodamine B for unshaped MIL were observed to be higher than those for shaped MIL-alg because partial coating of the surface of MIL particles by alginate polymer weakens adsorption forces. Kinetic analysis using a two-compartment model indicates that the contribution of the slow step in the mechanistic pathway for adsorption is more pronounced in MIL-alg compared to MIL because slow dye diffusion takes place in the alginate polymer. We believe that these fundamental findings will have a beneficial impact on approaches to design shaped MOFs that display improved dye removal performance. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/82487 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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