| Autor: |
Jun Xiao, Shuang Hao, Yiwen Qin, Pengfei Qi, Zhaoqian Zhang, Yunxia Hu |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
npj Clean Water, Vol 7, Iss 1, Pp 1-9 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2059-7037 |
| DOI: |
10.1038/s41545-024-00326-5 |
| Popis: |
Abstract Many fouling-resistant materials have been grafted or coated on the RO membrane surface for fouling-resistance. However, these modified RO membranes still exhibit a fast flux drop towards small charged organic foulants. Herein, we creatively use the quantum chemistry method to screen the thiol group having a close to zero interaction energy with small charged organic foulants. Thus, we selected a small molecule of 2-aminoethanethiol (AET) having a fouling-resistant thiol group and a reactive amine group for RO membrane surface modification. The water permeance of the AET-grafted RO membrane increases from 2.6 ± 0.1 L m−2 h−1 bar−1 to 3.2 ± 0.05 L m−2 h−1 bar−1, 23% higher than that of the pristine membrane. Moreover, the AET-grafted RO membrane exhibits excellent fouling resistance against charged surfactants. Our study offers insights on the design of fouling-resistant molecules for antifouling surface modification of RO membranes towards small charged organic foulants. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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