Journal of Inorganic Materials ›› 2016, Vol. 31 ›› Issue (5): 466-472.DOI: 10.15541/jim20150469
• Orginal Article • Previous Articles Next Articles
SHI Zhen-Wu1,2, GUO Shao-Bo3, XUE Qun-Hu1
Received:
2015-09-28
Revised:
2015-12-11
Published:
2016-05-20
Online:
2016-04-25
About author:
SHI Zhen-Wu. E-mail: 545366954@qq.com
CLC Number:
SHI Zhen-Wu, GUO Shao-Bo, XUE Qun-Hu. Preparation, Photocatalytic Property and Antibacterial Property of Ag@TiO2@SiO2 Composite Nanomaterials[J]. Journal of Inorganic Materials, 2016, 31(5): 466-472.
Fig. 6 Inhibition zones of the as-synthesized SiO2 spheres, TiO2@SiO2 composites, Ag, and Ag@TiO2@SiO2 composites against S. aureus (a) and E. coli (b)a1,b1: 0.2 mg/mL; a2,b2: 0.4 mg/mL; a3,b3: 0.6 mg/mL; a4,b4: 0. mg/mL
Concentration /(mg·mL-1) | B. subtilis -inhibition zones/cm | E.coli-inhibition zones /cm |
---|---|---|
Ag Ag@TiO2@SiO2 | Ag Ag@TiO2@SiO2 | |
0.2 0.4 0.6 0.8 | 0.2 0.1 0.5 0.3 1.1 0.7 1.2 0.8 | 0.5 0.3 0.7 0.5 1.1 0.8 1.3 1.0 |
Table 1 Inhibition zone diameters of the Ag and Ag@TiO2@SiO2 against B. subtilis and E. coli.
Concentration /(mg·mL-1) | B. subtilis -inhibition zones/cm | E.coli-inhibition zones /cm |
---|---|---|
Ag Ag@TiO2@SiO2 | Ag Ag@TiO2@SiO2 | |
0.2 0.4 0.6 0.8 | 0.2 0.1 0.5 0.3 1.1 0.7 1.2 0.8 | 0.5 0.3 0.7 0.5 1.1 0.8 1.3 1.0 |
Fig. 7 Spread-plate test results using 0.6 mg/mL of Ag and Ag@TiO2@SiO2 composites against S. aureus (a) and E. coli (b)O: control; A: 0.6 mg/mL commercial Ag; B: 0.6 mg/mL Ag@TiO2@SiO2
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