Single-mode focused microwave synthesis of small crystal NaA zeolite for antibacterial materials
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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.
Abstract
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.
참고문헌 (26)
- S. Bohra, , Ceramics International, 40(1), pp.1229~1234 (2014)
- Y. Huang, , Chemistry of Materials, 22(18), pp.5271~5278 (2010)
- P. Terzioğlu, , Waste & Biomass Valorization, 7(5), pp.1271~1277 (2016)
- M. Alkan, , Microporous & Mesoporous Materials, 86(1-3), pp.176~184 (2005)
- L.L. Yuwen, , Advanced Materials Research, 148-149, pp.1444~1448 (2010)
- I. Schmidt, , Cheminform, 31(33), pp.2279~2283 (2000)
- Y.K. Kim, , Journal of Hazardous Materials, 260(6), pp.350~357 (2013)
- M. Ansari, , Advanced Powder Technology, 25(2), pp.722~727 (2014)
- P. Sharma, , Journal of Colloid &Interface Science, 422(10), pp.45~53 (2014)
- M. Zhou, , RSC Advances, 3(36), pp.15596~15599 (2013)
- L. L. Zhou, , Journal of the Chinese Ceramic Society, 41(6), pp.842~847 (2013)
- G.A. Tompsett, , Chemphyschem A European Journal of Chemical Physics & Physical Chemistry, 7(2), pp.296~319 (2006)
- R. Zhou, , Microporous &Mesoporous Materials, 124(1-3), pp.117~122 (2009)
- M. Sathupunya, , Cheminform, 34(25), pp.1293~1303 (2003)
- L. Bonaccorsi, , Microporous &Mesoporous Materials, 112(1), pp.481~493 (2008)
- H. Katsuki, , Journal of Porous Materials, 8(1), pp.5~12 (2001)
- M.N. Nadagouda, , Accounts of Chemical Research, 44(7), pp.469~478 (2011)
- S.M. Kazemzadeh, , Transactions of the Indian Institute of Metals, 64(3), pp.261~264 (2011)
- G.A. Tompsett, , Chemphyschem A European Journal of Chemical Physics & Physical Chemistry, 7(2), pp.296~319 (2006)
- S.E. Park, , Catalysis Surveys from Asia, 8(2), pp.91~110 (2004)
- I. Bilecka, , Nanoscale, 2(8), pp.1358~1374 (2010)
- D. Bogdal, , Current Organic Chemistry, 15(2), pp.178~188 (2011)
- H. Katsuki, , Journal of Porous Materials, 8(1), pp.5~12 (2001)
- I. Girnus, , Zeolites, 15(1), pp.33~39 (1995)
- J. Chen, , Chinese Journal of Inorganic Chemistry, 16(5), pp.767~774 (2000)
- J.W. Hou, , Chemical Research and Application, 23(3), pp.261~267 (2011)