KR102071364B1 - 높은 표면력을 갖는 비정질 실리카 나노입자로 합성된 바이오물질 플라이 애쉬 및 이의 제조방법 - Google Patents
높은 표면력을 갖는 비정질 실리카 나노입자로 합성된 바이오물질 플라이 애쉬 및 이의 제조방법 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
- C01B33/152—Preparation of hydrogels
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
- C01B33/157—After-treatment of gels
- C01B33/158—Purification; Drying; Dehydrating
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Abstract
Description
도 2는 플라이 애쉬를 XRF 분석을 통해 XRF 스펙트럼을 측정한 결과를 나타낸 그래프.
도 3의 A 내지 G는 본 발명의 실시예에 따른 높은 표면력을 갖는 비정질 실리카 나노입자로 합성된 바이오물질 플라이 애쉬의 제조방법에서 세틸 트릴메틸암모늄 브롬화물의 농도(1wt%, 3wt%, 5wt%)에 따른 바이오물질 플라이 애쉬(실리카 나노입자)를 찍은 광학이미지 및 SEM으로 관찰한 사진.
도 4는 본 발명의 실시예에 따른 높은 표면력을 갖는 비정질 실리카 나노입자로 합성된 바이오물질 플라이 애쉬의 제조방법에서 세틸 트릴메틸암모늄 브롬화물의 농도(1wt%, 3wt%, 5wt%)에 따른 바이오물질 플라이 애쉬의 입자결합 모습을 도시한 개념도.
도 5의 A 내지 C는 본 발명의 실시예에 따른 높은 표면력을 갖는 비정질 실리카 나노입자로 합성된 바이오물질 플라이 애쉬의 제조방법의 S400 단계에서 반응온도(30℃, 60℃, 90℃)에 따른 바이오물질 플라이 애쉬(실리카 나노입자)를 SEM으로 관찰한 사진.
도 6의 A 내지 C는 본 발명의 실시예에 따른 높은 표면력을 갖는 비정질 실리카 나노입자로 합성된 바이오물질 플라이 애쉬의 제조방법의 S400 단계에서 반응시간(4h, 8h, 16h)에 따른 바이오물질 플라이 애쉬(실리카 나노입자)를 SEM으로 관찰한 사진.
도 7은 본 발명의 실시예에 따른 높은 표면력을 갖는 비정질 실리카 나노입자로 합성된 바이오물질 플라이 애쉬의 제조방법에서 S700 단계(활성화시키는 단계) 전후 바이오물질 플라이 애쉬의 FT-IR 스펙트럼을 나타낸 그래프.
도 8은 플라이 애쉬와 본 발명의 실시예에 따른 바이오물질 플라이 애쉬의 XRD 패턴을 나타낸 그래프.
도 9는 본 발명의 실시예에 따른 높은 표면력을 갖는 비정질 실리카 나노입자로 합성된 바이오물질 플라이 애쉬의 질소 흡착-탈착 등온선을 측정한 결과를 나타낸 그래프.
Claims (9)
- 높은 표면력을 갖는 비정질 실리카 나노입자로 합성된 바이오물질 플라이 애쉬의 제조방법에 있어서,
(a) 플라스크에 플라이 애쉬를 넣고 3M 나트륨수용액(3M NaOH)을 첨가하여 교반한 후 여과하여 규산나트륨(Na2SiO3) 용액을 제조하는 단계;
(b) 상기 규산나트륨 용액에 세틸 트릴메틸암모늄 브롬화물 및 N-부탄올을 첨가하고 가열하여 혼합물을 제조하는 단계;
(c) 상기 혼합물에 1M 염화수소(1M HCl) 용액를 첨가하여 pH가 4에 도달하도록 교반하는 단계;
(d) 교반한 상기 혼합물을 55 내지 65℃에서 6 내지 10시간 동안 반응시키고 실온에서 냉각시키는 단계;
(e) 냉각된 혼합물에서 분산된 실리카 겔을 수거하는 단계;
(f) 수거한 상기 실리카 겔을 세척하고 건조시키는 단계 및
(g) 건조된 상기 실리카 겔을 가열하여 활성화시키는 단계를 포함하고,
상기 (a) 단계는,
상기 플라스크에 플라이 애쉬를 넣고 3M 나트륨수용액(3M NaOH)을 첨가하여 85 내지 95℃에서 5.5 내지 6.5 시간동안 균질하게 교반하며,
상기 (b) 단계는,
상기 규산나트륨 용액 90 내지 110 중량부에 세틸 트릴메틸암모늄 브롬화물 90 내지 110중량부 및 N-부탄올 190 내지 210 중량부를 첨가하는 것을 특징으로 하는 바이오물질 플라이 애쉬의 제조방법.
- 제1항에 있어서,
상기 (a) 단계는,
상기 플라스크에 플라이 애쉬 7 내지 9 중량부를 넣고 90 내지 110 중량부의 3M 나트륨수용액(3M NaOH)을 첨가하여 교반하는 것을 특징으로 하는 바이오물질 플라이 애쉬의 제조방법.
- 삭제
- 제1항에 있어서,
상기 (b) 단계는,
상기 세틸 트릴메틸암모늄 브롬화물의 농도가 3 내지 4wt%인 것을 특징으로 하는 바이오물질 플라이 애쉬의 제조방법.
- 삭제
- 제1항에 있어서,
상기 (b) 단계는,
상기 규산나트륨 용액에 세틸 트릴메틸암모늄 브롬화물 및 N-부탄올을 첨가하고 75 내지 85℃로 가열하여 혼합물을 제조하는 것을 특징으로 하는 바이오물질 플라이 애쉬의 제조방법.
- 제1항에 있어서,
상기 (f) 단계는,
수거한 상기 실리카 겔을 세척하고 95 내지 105℃에서 23 내지 25시간동안 건조시키는 것을 특징으로 하는 바이오물질 플라이 애쉬의 제조방법.
- 제1항에 있어서,
상기 (g) 단계는,
건조된 상기 실리카 겔을 540 내지 560℃에서 3.5 내지 4.5시간동안 가열하여 활성화시키는 것을 특징으로 하는 바이오물질 플라이 애쉬의 제조방법.
- 삭제
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020180063677A KR102071364B1 (ko) | 2018-06-01 | 2018-06-01 | 높은 표면력을 갖는 비정질 실리카 나노입자로 합성된 바이오물질 플라이 애쉬 및 이의 제조방법 |
PCT/KR2018/013336 WO2019231063A1 (ko) | 2018-06-01 | 2018-11-06 | 높은 표면력을 갖는 비정질 실리카 나노입자로 합성된 바이오물질 플라이 애쉬 및 이의 제조방법 |
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