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공침법에 의해 제조된 Magnetic Iron Oxide (MIO)를 이용한 수중 인 흡착 특성

Title
공침법에 의해 제조된 Magnetic Iron Oxide (MIO)를 이용한 수중 인 흡착 특성
Other Titles
Characteristics of Phosphate Adsorption using Prepared Magnetic Iron Oxide (MIO) by Co-precipitation Method in Water
Author
김종오
Keywords
자성산화철; 흡착; 흡착평형; 운동학적 모델; MIO (Magnetic Iron Oxide); adsorption; adsorption equilibrium; kinetic model
Issue Date
2015-12
Publisher
대한상하수도학회
Citation
상하수도학회지, v. 29, NO 6, Page. 609-615
Abstract
This study was carried out for characterization of MIO synthesized in our laboratory by co-precipitation method and applied isotherm and kinetic models for adsorption properties. XRD analysis were conducted to find crystal structure of synthesized MIO. Further SEM and XPS analysis was performed before and after phosphate adsorption, and BET analysis for surface characterization. Phosphate stock solution was prepared by KH2PO4 for characterization of phosphate adsorption, and batch experiment was conducted using 50 ml conical tube. Langmuir and Freundlich models were applied based on adsorption equilibrium test of MIO by initial phosphate solution. Pseudo first order and pseudo second order models were applied for interpretation of kinetic model by temperature. Surface area and pore size of MIO were found 89.6 m2/g and 16 nm respectively. And, the determination coefficient (R2) value of Langmuir model was 0.9779, which was comparatively higher than that of Freundlich isotherm model 0.9340.
URI
http://www.jksww.or.kr/journal/article.php?code=37548http://hdl.handle.net/20.500.11754/29467
ISSN
1225-7672; 2287-822X
DOI
10.11001/jksww.2015.29.6.609
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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