KR101612403B1 - 방사성 세슘 흡착용 프러시안 블루 담지 나노섬유 복합체, 이를 이용한 필터 여재 및 방사성 세슘의 제염방법 - Google Patents
방사성 세슘 흡착용 프러시안 블루 담지 나노섬유 복합체, 이를 이용한 필터 여재 및 방사성 세슘의 제염방법 Download PDFInfo
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Abstract
본 발명의 방사성 세슘 흡착용 프러시안 블루 담지 나노섬유 복합체는 섬유 성형성 고분자 물질과 프러시안 블루의 혼합물로 이루어지며, 방사되어 직경 3㎛ 이하의 나노섬유에 의해 집적되어 3차원 미세 기공을 갖는 나노섬유 멤브레인; 및 상기 나노섬유 멤브레인의 일측면 또는 양측면에 적층되어 나노섬유 멤브레인을 지지하는 다공성 기재;를 포함하는 것을 특징으로 한다.
Description
도 2a 내지 도 2d는 각각 본 발명의 일실시예에 따라 제조된 프러시안 블루 담지 나노섬유 복합체의 구조를 나타내는 단면도이다.
도 3(a)와 도 3(b)는 각각 본 발명의 일실시예에 따라 제조된 프러시안 블루 담지 PVA 나노섬유의 사진과 주사전자현미경(SEM) 사진이다.
도 4(a)와 도 4(b)는 각각 본 발명의 일실시예에 따라 제조된 프러시안 블루 담지 PAN 나노섬유의 주사전자현미경(SEM) 사진과 EDX의 결과를 나타낸 그래프이다.
도 5는 본 발명의 일실시예에 따라 제조된 프러시안 블루 담지 PVDF 나노섬유의 주사전자현미경(SEM) 사진이다.
도 6은 본 발명에 따른 실시예 1(프러시안 블루 담지 PVA 나노섬유), 실시예 2(프러시안 블루 담지 PAN 나노섬유), 실시예 3(프러시안 블루 담지 PVDF 나노섬유), 비교예(PAN 나노섬유)에 대한 염화세슘의 흡착성능을 비교하여 나타낸 염화세슘 흡착등온곡선 그래프이다.
200,200a: 나노섬유 멤브레인 400: 지지층
Claims (11)
- 섬유 성형성 고분자 물질과 프러시안 블루의 혼합물로 이루어지며, 방사되어 직경 3㎛ 이하의 나노섬유에 의해 집적되어 3차원 미세 기공을 갖는 나노섬유 멤브레인; 및
상기 나노섬유 멤브레인의 일측면 또는 양측면에 적층되어 나노섬유 멤브레인을 지지하는 다공성 기재;를 포함하며,
상기 나노섬유에 함유되는 프러시안 블루의 함량은 섬유 성형성 고분자 대비 5~50wt.% 범위로 설정되고, 상기 나노섬유의 평량은 방사용액 전체를 기준으로 0.5~50gsm(gram per square meter) 범위로 설정되는 방사성 세슘 흡착용 프러시안 블루 담지 나노섬유 복합체. - 삭제
- 제1항에 있어서,
상기 나노섬유 멤브레인의 평균 기공크기는 0.2~1.0㎛, 섬유직경은 0.05~3㎛로 설정되는 방사성 세슘 흡착용 프러시안 블루 담지 나노섬유 복합체. - 제1항에 있어서,
상기 다공성 기재는 부직포 또는 직포인 방사성 세슘 흡착용 프러시안 블루 담지 나노섬유 복합체. - 삭제
- 제1항에 있어서,
상기 나노섬유 복합체의 외측면에 메쉬, 망 또는 필라멘트로 이루어진 지지층을 더 포함하는 방사성 세슘 흡착용 프러시안 블루 담지 나노섬유 복합체. - 지지체 역할을 하는 다공성 기재; 및
상기 다공성 기재의 양측면에 적층되며 섬유 성형성 고분자 물질과 프러시안 블루의 혼합물로 이루어지며, 방사되어 직경 3㎛ 이하의 나노섬유에 의해 집적되어 3차원 미세 기공을 갖는 나노섬유 멤브레인;을 포함하며,
상기 나노섬유에 함유되는 프러시안 블루의 함량은 섬유 성형성 고분자 대비 5~50wt.% 범위로 설정되고, 상기 나노섬유의 평량은 방사용액 전체를 기준으로 0.5~50gsm(gram per square meter) 범위로 설정되는 방사성 세슘 흡착용 프러시안 블루 담지 나노섬유 복합체. - 제1항, 제3항, 제4항, 제6항 내지 제7항 중 어느 한 항에 따른 방사성 세슘 흡착용 프러시안 블루 담지 나노섬유 복합체로 구성된 필터 여재.
- 제8항에 따른 필터 여재를 사용하여 방사성 세슘을 선택적으로 흡착하는 방사성 세슘의 제염방법.
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