| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 |
24권 1호, p.312 |
| 발표분야 |
분리기술 |
| 제목 |
Crown Ether-Decorated Phosphazene-functionalized Magnetic Reduced Graphene Oxide as a Composite Adsorbent Material for Selective Lithium Ion Recovery from Seawater |
| 초록 |
A multi-functional composite adsorbent (CE-HCTP-rGO-Fe3O4) was successfully synthesized and used as lithium ion (Li+) adsorbent from seawater. Reduced Graphene Oxide (rGO) was used as a two-dimensional, high aspect ratio support material, Magnetite (Fe3O4) for easy material recovery, Phosphonitrilic Chloride Trimer (HCTP) to increase the attachment sites for Crown Ether (CE), and Crown Ether as Li+-selective ionophore. The adsorption experiment at varied Li+ concentration revealed the Langmuir-type Li+ uptake. The adsorbent is highly selective towards Li+ as compared to other cations present in seawater, such as Na+, K+, Mg2+, and Ca2+. It can be easily separated via external magnet and re-used. Overall results demonstrate the high adsorption capacity and suitability of CE-HCTP-rGO-Fe3O4 for long-term adsorption applications. This work was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (No. 2016R1A2B1009221 and No. 2017R1A2B2002109), and the Ministry of Education (No. 2009-0093816). |
| 저자 |
Khino Parohinog1, 이성풍2, Grace Nisola3, 정욱진1
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| 소속 |
1Energy and Environment Fusion Technology Center (E2FTC), 2Department of Energy Science and Technology (DEST), 3명지대 |
| 키워드 |
흡착 |
| E-Mail |
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| 원문파일 |
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