| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 봄 (04/25 ~ 04/27, 제주 ICC) |
| 권호 |
18권 1호, p.328 |
| 발표분야 |
분리기술 |
| 제목 |
Adsorption and desorption study for selective recovery of silver ion using nanostructured graphitic carbon nitride (g-C3N4) |
| 초록 |
Selective recovery of noble metal ions in aqueous phase is required to develop environmental friendly and cost effective process. Among various separation processes, adsorption with proper adsorbents is easy to utilize, simple, cheap, and highly effective method. Herein, we demonstrated selective recovery of silver ions which have various catalytic activities using nanostructured g-C3N4. g-C3N4 is consisted with carbon and nitrogen molecules stacking in graphitic fashion. The lone pair electrons on nitrogen atoms can act as active binding sites to adsorb silver ions without any further surface modifications. Also large surface area of nanostructured g-C3N4 takes advantages to have chance to adsorb silver ions. To verify adsorption capacity of silver ion onto nanostructured g-C3N4, we figured out silver ions adsorption capacity of nanostructured g-C3N4, desorption and reusability. Moreover adsorption kinetics, heat of adsorption and selective adsorption of silver ions from various metal ions solution were also studied. |
| 저자 |
이선욱1, 전영시1, 이은주1, 홍연기2, 장용근1, 홍원희1
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| 소속 |
1KAIST, 2한국교통대 |
| 키워드 |
adsorption; g-C3N4; silver ion; noble metal recovery; selective adsorption
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| E-Mail |
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| 원문파일 |
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