| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.305 |
| 발표분야 |
분리기술(Separation Technology) |
| 제목 |
Thia-crown Ether Functionalized Mesoporous Silica Composite Adsorbent for Selective Recovery of Gold (Au3+) Ions from Electronic Wastes |
| 초록 |
Selective recovery of individual precious metal from e-wastes has been a big challenge due to its low concentration in the matrix. Here, highly selective adsorbent was developed for gold (Au3+) recovery. The adsorbent is composed of thiacrown ether (TCE) as Au3+-specific ionophore and mesoporous silica (SBA-15) as support material. The composite adsorbent (TCE/SBA-15) was prepared through immobilization of TCE onto the surface of SBA-15. TCE was synthesized by intermolecular cyclization of bulky epoxide with 1,2-benzenedithiol. The products were characterized by high-resolution spectroscopic methods. Adsorption results reveal the high selectivity of the composite adsorbent towards Au3+ions. This work was supported by National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (2017R1D1A1B03028102 and 2017R1A2B2002109) and Ministry of Education (2009-0093816 and 22A20130012051 (BK21Plus)). |
| 저자 |
Hiluf Tekle Fissaha, Grace Nisola, Sio Edward, Gebremichael Gebremedhn Tekeste, Mengesha Daniel Nigusse, 정욱진
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| 소속 |
명지대 |
| 키워드 |
흡착; 추출
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| E-Mail |
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| 원문파일 |
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