포화 컬럼실험에서 이온강도 변화 및 유기물질 출현에 의한 PVP로 코팅된 은나노 입자의 거동 연구

서지정보

ㆍ발행기관 : 대한상하수도학회 ㆍ수록지정보 : 상하수도학회지 / 30권 / 3호
ㆍ저자명 : 허지용, 한종훈, 허남국

목차

1. 서 론
2. 실험 재료 및 방법
3. 결과 및 토의
3.1 Na+ 이온 강도 및 유기물질 출현에 따른 AgNPs의이동성 평가
3.2 Ca2+ 이온 강도 및 유기물질 출현에 따른 AgNPs의이동성 평가
3.3 은나노 물질의 이온강도 영향성 모델링
3.4 은나노 물질의 Humic acid 영향성 모델링
4. 결 론
References

영어 초록

Recent Engineered nanoparticles were increasingly exposed to environmental system with the wide application and production of nanomaterials, concerns are increasing about their environmental risk to soil and groundwater system. In order to assess the transport behavior of silver nanoparticles (AgNPs), a saturated packed column experiments were examined. Inductively coupled plasma-mass spectrometry and a DLS detector was used for concentration and size measurement of AgNPs. The column experiment results showed that solution chemistry had a considerable temporal deposition of AgNPs on the porous media of solid glass beads. In column experiment, comparable mobility improvement of AgNPs were observed by changing solution chemistry conditions from salts (in both NaCl and CaCl2 solutions) to DI conditions, but in much lower ionic strength (IS) with CaCl2. Additionally, the fitted parameters with two-site kinetic attachment model form the experimental breakthrough curves (BTCs) were associated that the retention rates of the AgNPs aggregates were enhanced with increasing IS under both NaCl and CaCl2 solutions.

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