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자료유형
학술저널
저자정보
Sen Li (Shandong University of Technology)
저널정보
한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제18권 제5호
발행연도
2017.5
수록면
347 - 351 (5page)
DOI
http://dx.doi.org/

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Small crystal NaA zeolite was synthesized by a single-mode focused microwave approach with sodium silicate as the silicasource and sodium meta-aluminate as the aluminum source. The crystallization time, phase composition, and morphology ofthe NaA zeolite were investigated. To demonstrate the antibacterial capability, Ag+was loaded into the NaA zeolite. Theamount of silver load in the zeolite was determined by atomic absorption spectrometry. The antibacterial property toEscherichia coli of the Ag-loaded zeolite was analyzed by a spectroturbidity method. Compared to the conventionalhydrothermal synthesis of NaA zeolite, the crystallization time was significantly reduced in the single-mode focused microwavesynthesis, from 2 hr to 6 min. The size distribution of the NaA zeolite ranges from 300 to 400 nm in the single-mode focusedmicrowave synthesis, more uniform than that of the conventional hydrothermal method. The amount of silver load reached21.13%, and the minimum inhibitory concentration (MIC) to Escherichia coli was 10.42 ppm in the Ag-loaded zeolite preparedwith the carrier of the microwave synthesized NaA zeolite, so the antibacterial ability was significantly improved comparedto the Ag-loaded zeolite prepared with the carrier of NaA zeolite by the conventional hydrothermal synthesis.

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