Supporting information
Facile synthesis of Ag@TiO2 (B) hierarchical core-shell nanowires:
facile synthesis, growth mechanism and photocatalytic and
antibacterial applications
Fang Li,a Kun Liu,b Yu-Ling Zhao,a Yan-Yan Cao,b Zheng-Quan Li,*,a Hai-Tao Xu,c Hong-Bin Zhang,b
Yan-Chuan Guo,*,c Hai-Sheng Qian *,b
a
Department of Chemistry, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, Zhejiang,
321004, China.
b
Department of Medical Materials and Rehabilitation Engineering, School of Medical Engineering, Hefei
University of Technology, Hefei 230009, P. R. China.
c
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Intensity (a.u.)
100
200
10
15
111 002
20
25
30
35
2 theta [Deg.]
Fig. S1. Enlarged XRD pattern of the as-prepared product obtained from 1 mmol AgNO3, 136 µL TBT
and 30 mL ethylene glycol at 200 oC for 12 h.
10
003
510
020
Intensity(a.u.)
002
111
001
110
b)
15
20
25
30
35
40
45
50
55
60
65
70
75
80
2 theta/deg.
Fig. S2. XRD pattern of the as-prepared product obtained from 136 µL TBT and 30 mL ethylene
glycol at 200 oC for 12 h.
Fig. S3. The Energy Dispersive X-ray analysis (EDX) of the Ag@TiO2 hierarchical core-shell
nanostructures.
(b)
(a)
XPS survery
Ag3p
Ag 3d
Intensity(a.u.)
Intensity(a.u.)
O1s
Ti 2p
Ag 3d
C 1s
Ti 3p
800
600
400
200
0
380
Binding Energy(ev)
375
370
365
Binding Energy(ev)
(d)
(c)
Ti 2p
O 1s
Intensity(a.u.)
Intensity(a.u.)
475
360
470
465
460
Binding Energy(ev)
455
450
545
540
535
530
525
Binding Energy(ev)
Fig. S4. The X-ray photoelectron spectra (XPS) of the Ag/TiO2 hierarchical core-shell nanostructures
obtained from 1 mmol AgNO3, 136 µL TBT and 30 mL ethylene glycol at 200 oC for 12 h: (a) Survey
spectrum; (b) Ag 3d spectrum; (c) Ti 2p spectrum; (d) O 1s spectrum.
Fig. S5.(a,b) SEM and TEM images of the as-prepared product obtained at 180 oC and other
condition was kept at the same; (c-d) SEM images of as-prepared product obtained at 200 oC in
absence of silver nitrate.
Fig. S6. Field-emission scanning electron microscopy (FESEM) and transmission electronic
microscopy (TEM) images of the as-prepared products obtained from 1 mmol AgNO3, 500 µL TBT
and 30 mL ethylene glycol at 200 oC for the different of time: (a, b) 2h, (c, d) 4h, (e, f) 8h.
Table S1. Element composition of the as-prepared Ag@TiO2 hierarchical core-shell nanowires from
EDX analyses.
Element
Weight%
Atomic%
O
17.05
50.52
Ti
23.70
23.45
Ag
59.25
26.03
Totals
100.00
Table S2. The MICs and MBCs of samples against (E. Coli) pathogenic organisms
Ag-TiO2-68
Ag-TiO2-136
Ag-TiO2-272
Ag-TiO2-550
MIC(µg/mL)
10
10
10
80
MBC(µg /mL)
50
10
50
80