Fe3O4 자성 나노 물질의 합성 및 응용연구
Fabrication and Applications of Fe3O4 Magnetic Nanomaterials
- 주제(키워드) 도움말 나노 페라이트 , core-shell
- 발행기관 강릉원주대학교 일반대학원
- 지도교수 도움말 정진승
- 발행년도 2015
- 학위수여년월 2016. 2
- 학위명 석사
- 학과 및 전공 도움말 일반대학원 화학과
- 실제URI http://www.dcollection.net/handler/kangnung/000000008111
- 본문언어 한국어
초록/요약 도움말
나노기술은 전자, 정보, 에너지, 통신, 환경, 생명공학 등 여러 분야에서 사용된다. 최근 빠른 산업발전으로 인하여 폐수, 유기오염, 대기오염, 전자파와 같은 환경오염 문제가 발생하고 있다. 이러한 문제를 극복하기 위해 다목적 복합 산화철 페라이트를 합성하고 그 응용 연구를 수행하였다. 산화철 나노 페라이트는 수열 합성으로 합성하였고 EG(Ethylene glycol)과 DEG(Diethylene glycol)를 사용하여 크기 조절하고 다양한 실험 방법을 통해 형상을 조절하였다. 합성한 산화철 나노 페라이트와 전도성 고분자인 Polyaniline을 사용하여 core-shell 형태의 복합 산화철 페라이트로 합성하였고, 투자율과 주파수의 변화에 따른 흡수영역을 확인하였다. 또한 산화철 나노 페라이트와 산화물 반도체인 이산화티타늄을 core-shell 형태의 복합 산화철 페라이트로 합성하고 Rhodamin B에 대한 광촉매 활성을 연구했다. 산화철 페라이트를 산화시켜 다공성 α-Fe2O3를 합성하고 대기오염 물질인 일산화탄소에 대한 촉매로서 벌크한 α-Fe2O3와 촉매 활성에 대해 비교 실험하였다. 환경오염 문제인 전자파 오염, 수질오염, 대기오염 물질에 대한 다목적 복합 산화철 페라이트 물질 응용연구를 수행하였다.
more초록/요약 도움말
Nano technology has been used in many fields such as electronics, information, energy, communication, environment, and biotechnology. Recently, rapid industrial development caused environmental problems such as wastewater, organic pollution, air pollution and electromagnetic waves. To overcome this problem, a multi-purpose iron oxide nano-ferrite composite was synthesized and its application was studied. Iron oxide nano-ferrite was synthesized with hydrothermal synthesis. By using EG and DEG, the size was adjusted and the shape was controlled through various methods. By using iron oxide nano-ferrite and polyaniline; a conductive polymer material, a multi-purpose iron oxide ferrite with core-shell was synthesized. Moreover, changes in frequency of permeability and absorption region are checked. In addition, iron oxide nano-ferrite and titanium dioxide, a material of oxide semiconductor, was synthesized in the form of a core-shell multi-purpose iron oxide ferrite. With the multi-purpose iron oxide ferrite, photocatalytic activity research for rhodamine B was carried out. The α-Fe2O3 submicron cluster was synthesized by oxidizing magnetites. Conversion experiment of carbon monoxide, one of the air pollutants, was a comparison experiment of catalytic activity between the α-Fe2O3 submicron cluster and α-Fe2O3 fine powder. Research on the application of the multi-purpose iron oxide nano-ferrite was carried out for the electromagnetic shielding, water solution and air pollutant.
more목차 도움말
Ⅰ. 서론·············································1
Ⅱ. 실험·············································7
1. 시약, 기구 및 측정기기··························7
2. Fe3O4 나노 물질 합성····························8
2.1 autoclave를 사용한 Fe3O4 합성·················8
2.2 3L 플라스크를 사용한 대용량 Fe3O4 합성 ·······9
2.3 막대형 α - Fe2O3 합성························9
2.4 잎상형 α - Fe2O3 합성························10
2.5 α - Fe2O3 입자 합성··························11
3. 나노 복합체 (Core-Shell) 합성···················11
3.1 Fe3O4@PANI 합성·······························11
3.2 Fe3O4@TiO2 합성·······························11
3.3 Fe3O4@TiO2@Ag 합성····························12
4. 나노 복합체 (Core-Shell)의 응용 실험············12
1.1 Rhodamin B(Rh.B) 분해 실험····················12
1.2 CO 변환 실험··································12
Ⅲ. 결과 및 고찰·····································14
1. Fe3O4 나노 물질의 구조 분석·····················14
1.1 Fe3O4 입자의 구조 분석························14
1.2 막대형과 잎상형 α - Fe2O3의 구조 분석········17
1.3 α - Fe2O3 입자의 구조 분석···················19
2. 나노 복합 물질의 구조 분석······················24
2.1 Fe3O4@PANI····································24
2.2 Fe3O4@TiO2@Ag·································35
3. 나노 복합 물질의 응용 실험······················38
3.1 Rhodamin B(Rh.B) 분해 실험····················38
3.2 CO 전환 실험··································41
Ⅳ. 결론·············································46
Ⅴ. 참고문헌·········································48
국문 요약············································51
Abstract·············································52
