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인 흡착용 마그네타이트 합성 시 알칼리 종류 및 농도가 공침 입자크기에 미치는 영향 KCI 등재
Effects of alkali species and concentration on the size distribution of the co-precipitated magnetite particles used for phosphate adsorption
- 언어KOR
- URLhttps://db.koreascholar.com/Article/Detail/318886
pp.409-415
Magnetite particles were synthesized by co-precipitation of water-soluble 밀 스케일-derived precursor by various concentrations of (0.5, 0.67, 1, 2 N) NaOH and (0.6, 0.8, 1.2, 2.4 N) NH4OH. It is theoretically known that as the concentration of the alkaline additive used in iron oxide synthesis increases, the particle size distribution of that iron oxide decreases. This trend was observed in both kind of alkaline additive used, NaOH and NH4OH. In addition, the magnetite synthesized in NaOH showed a relatively smaller particle size distribution than magnetite synthesized in NH4OH. Crystalline phase of the synthesized magnetite were determined by X-ray diffraction spectroscopy(XRD). The particles were then used as an adsorbent for phosphate(P) removal. Phosphorus adsorption was found to be more efficient in NaOH-based synthesized magnetite than the NH4OH-based magnetite.
2. Materials and Methods
2.1 실험재료
2.2 마그네타이트 합성을 위한 최적 Fe : OH 당량비결정 실험
2.3 알칼리 종류 및 첨가농도 변화에 따른 입도변화분석
2.4 제조 마그네타이트 활용 인 흡착 특성 분석
3. Results and Discussion
3.1 마그네타이트 합성을 위한 최적 Fe : OH 당량비결정
3.2 알칼리 종류 및 첨가농도 변화에 따른 입도변화
3.3 마그네타이트의 인 흡착 특성
4. 결 론
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