Surface modified mesoporous silica (SBA-15) for phosphate adsorbents in water

Title
Surface modified mesoporous silica (SBA-15) for phosphate adsorbents in water
Authors
이승연최재우이상협이해군이기봉홍석원
Keywords
Functionalized SBA-15; Mesoporous materials; Phosphate adsorption; Surfactant
Issue Date
2011-10
Publisher
상하수도학회지
Citation
VOL 25, NO 5, 719-724
Abstract
The excessive phosphate in water causes eutrophication which destroys water environment. In this study, mesoporous silica was synthesized and several functional groups were attached on it. Samples were tested to identify the ability to remove phosphate. The structures of synthesized materials were analyzed by X-ray diffractions (XRD), Fourier transform-infrared (FT-IR) and surface area analysis, Brunauer,Emmett,Teller (BET). To determine the maximum phosphate adsorption capacities and sorption rate, the equilibrium test and kinetic test was conducted. Among functionalized SBA-15 samples, pure SBA-15 didn’t adsorb phosphate but Al-SBA-15 and Ti-SBA-15 showed good performances to remove phosphate. The maximum phosphate adsorption capacity of Al-SBA-15 was efficient compared to other adsorbents.
URI
http://pubs.kist.re.kr/handle/201004/40544
ISSN
1225-7672
Appears in Collections:
KIST Publication > Article
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