| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-콜로이드·계면화학 |
| 제목 |
Polyelectrolyte-grafted Ti3C2-MXenes stable in extreme salinity aquatic conditions for remediation of contaminated subsurface environments |
| 초록 |
MXenes are recently gaining significant attention for numerous environmental applications owing to their superior hydrophilicity and unique surface functionalities. However, the use of MXenes for in-situ remediation of contaminated subsurface aquatic environments has not been considered yet. For effective in-situ remediation, it is of primary importance to maintain colloidal stability in harsh subsurface environments. Herein, Ti3C2-MXenes covalently grafted with polyelectrolytes(PEs), MXene-g-PEs, are developed by employing either anionic or zwitterionic PEs. Both MXene-g-PEs have sufficient colloidal stability against the immediate and irreversible aggregation observed for the pristine MXenes in API brines. The MXenes-g-(zwitterionic) PEs show long-term colloidal stability over 6 months in API brine with extreme salinity and little adsorption against α-alumina surfaces. The results suggest a high potential usefulness of the MXene-g-PEs in various subsurface applications. |
| 저자 |
임세형, 박현수, 김진형, 양지원, 곽채수, 김지은, 유승영, 이주형
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| 소속 |
명지대 |
| 키워드 |
MXenes; Polyelectrolytes; Colloidal Stability; Extreme Salinities; Environmental Remediation
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| E-Mail |
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