Preparation and characterization of antibacterial Zn2+-exchanged montmorillonites
Zn-montmorillonites(Zn-MMTs) as antibacterial compounds were prepared by an ion-exchange reaction. The reaction time, initial pH value and molar ratios of CEC influencing zinc content in Zn-MMTs were investigated, and Zn-MMTs were characterized by means of EDX, XRD, XPS, and SEM. The results of bact...
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| Veröffentlicht in: | Journal of Wuhan University of Technology. Materials science edition 2010-10, Vol.25 (5), p.725-729 |
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| container_title | Journal of Wuhan University of Technology. Materials science edition |
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| creator | Shi, Qingshan Tan, Shaozao Yang, Qiuhui Jiao, Zepeng Ouyang, Yousheng Chen, Yiben |
| description | Zn-montmorillonites(Zn-MMTs) as antibacterial compounds were prepared by an ion-exchange reaction. The reaction time, initial pH value and molar ratios of CEC influencing zinc content in Zn-MMTs were investigated, and Zn-MMTs were characterized by means of EDX, XRD, XPS, and SEM. The results of bacterial growth tests were confirmed by determination of the minimum inhibition concentrations (MICs) and minimum bactericidal concentrations (MBCs). The experimental results show that the zinc is confirmed as bivalent zinc state, the
d
001
basal spacing of Zn-MMTs is enlarged with the enhancement of the zinc content, and the particles of Zn-MMTs are formed with irregular shape. Moreover, the antibacterial activity of Zn-MMTs increases with increasing the zinc content, and Zn-MMT-3 containing 6.76 mass% of zinc exhibits optimum antibacterial activity against
Escherichia coli
and
Staphylococcus aureus
. The intercalated zinc ions act as very effective antibacterial substances in the long term. |
| doi_str_mv | 10.1007/s11595-010-0080-5 |
| format | Article |
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d
001
basal spacing of Zn-MMTs is enlarged with the enhancement of the zinc content, and the particles of Zn-MMTs are formed with irregular shape. Moreover, the antibacterial activity of Zn-MMTs increases with increasing the zinc content, and Zn-MMT-3 containing 6.76 mass% of zinc exhibits optimum antibacterial activity against
Escherichia coli
and
Staphylococcus aureus
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d
001
basal spacing of Zn-MMTs is enlarged with the enhancement of the zinc content, and the particles of Zn-MMTs are formed with irregular shape. Moreover, the antibacterial activity of Zn-MMTs increases with increasing the zinc content, and Zn-MMT-3 containing 6.76 mass% of zinc exhibits optimum antibacterial activity against
Escherichia coli
and
Staphylococcus aureus
. 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Materials science edition</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shi, Qingshan</au><au>Tan, Shaozao</au><au>Yang, Qiuhui</au><au>Jiao, Zepeng</au><au>Ouyang, Yousheng</au><au>Chen, Yiben</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation and characterization of antibacterial Zn2+-exchanged montmorillonites</atitle><jtitle>Journal of Wuhan University of Technology. Materials science edition</jtitle><stitle>J. Wuhan Univ. Technol.-Mat. Sci. Edit</stitle><date>2010-10-01</date><risdate>2010</risdate><volume>25</volume><issue>5</issue><spage>725</spage><epage>729</epage><pages>725-729</pages><issn>1000-2413</issn><eissn>1993-0437</eissn><abstract>Zn-montmorillonites(Zn-MMTs) as antibacterial compounds were prepared by an ion-exchange reaction. The reaction time, initial pH value and molar ratios of CEC influencing zinc content in Zn-MMTs were investigated, and Zn-MMTs were characterized by means of EDX, XRD, XPS, and SEM. The results of bacterial growth tests were confirmed by determination of the minimum inhibition concentrations (MICs) and minimum bactericidal concentrations (MBCs). The experimental results show that the zinc is confirmed as bivalent zinc state, the
d
001
basal spacing of Zn-MMTs is enlarged with the enhancement of the zinc content, and the particles of Zn-MMTs are formed with irregular shape. Moreover, the antibacterial activity of Zn-MMTs increases with increasing the zinc content, and Zn-MMT-3 containing 6.76 mass% of zinc exhibits optimum antibacterial activity against
Escherichia coli
and
Staphylococcus aureus
. The intercalated zinc ions act as very effective antibacterial substances in the long term.</abstract><cop>Heidelberg</cop><pub>Wuhan University of Technology</pub><doi>10.1007/s11595-010-0080-5</doi><tpages>5</tpages></addata></record> |
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| subjects | Chemistry and Materials Science Materials Science Studies |
| title | Preparation and characterization of antibacterial Zn2+-exchanged montmorillonites |
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