| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 |
24권 1호, p.443 |
| 발표분야 |
에너지 환경 |
| 제목 |
Direct copolymerization of elemental sulfur via inverse vulcanization for preparation of high Hg2+-capacity adsorbent membrane |
| 초록 |
Polysulfide-based membrane was evaluated to be very effective adsorbent for Hg2+ sequestration. Elemental sulfur was directly reacted with 2-carboxyethyl acrylate (CEA) to synthesize poly(sulfur-random-CEA) (poly(S-r-CEA)) polysulfide (PS). PS-PAN dope solution was electrospun. At 150 wt% loading of PS (S:CEA molar ratio = 2:1), the prepared PS has remarkable Hg2+ capacity (580-900 mg L-1) while PS-PAN nanofibers have maximum Hg2+ capacity of 470-610 mg L-1. Hg2+ adsorption on the PS-PAN membrane was spontaneous, endothermic and follows pseudo-second order rate model. Selectivity test exhibited that the membrane has affinity towards Cr2+, Zn2+, and Pb2+ and a little affinity towards Cu2+. Furthermore, repeated adsorption-desorption test showed that the PS-PAN membrane can be reused for long time use. 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 |
Limjuco Lawrence1, Grace Nisola2, Hana Gebreegziabher Zeweldi3, 이성풍1, 정욱진2
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| 소속 |
1Energy and Environment Fusion Technology Center (E2FTC), 2Department of Energy Science and Technology (DEST), 3명지대 |
| 키워드 |
에너지 환경 |
| E-Mail |
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| 원문파일 |
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