Supplementary Information
Functional Application of Noble Metal Nanoparticles
In-Situ Synthesized on Ramie Fibers
Bin Tang1,2*, Ya Yao1, Jingliang Li2, Si Qin2, Haijin Zhu2, Jasjeet Kaur2, Wu Chen1,
Lu Sun1,2, Xungai Wang 1,2*
1
School of Textile Science and Engineering, Wuhan Textile University, Wuhan
430073, China.
2
Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216,
Australia.
*
Correspondence: bin.tang@deakin.edu.au; xungai.wang@deakin.edu.au.
1
Table S1 Details of the experimental condition for in-situ synthesis of silver
nanoparticles.
pH value
Concentration of silver ions
Temperature
0.1 mM
0.2 mM
0.3 mM
0.4 mM
pH=10
Ag-90-10-1
Ag-90-10-2
Ag-90-10-3
Ag-90-10-4
pH=7
Ag-90-7-1
Ag-90-7-2
Ag-90-7-3
Ag-90-7-4
90 oC
Table S2 Details of the experimental condition for in-situ synthesis of gold
nanoparticles.
pH value
Concentration of gold ions
Temperature
0.02 mM
0.04 mM
0.06 mM
0.08 mM
pH=5
Au-90-5-2
Au-90-5-4
Au-90-5-6
Au-90-5-8
pH=7
Au-90-7-2
Au-90-7-4
Au-90-7-6
Au-90-7-8
90 oC
9
8
(a)
1.4
Maximum K/S
Maximum K/S
7
6
5
4
3
(b)
1.2
1.0
0.8
0.6
0.4
2
0.10
0.15
0.20
0.25
[AgNO3]
0.30
0.35
0.40
(mM)
0.02
0.03
0.04
0.05
[HAuCl4]
0.06
0.07
0.08
(mM)
Figure S1 Plots of maximum K/S value as a function of concentration of a AgNO3
and b HAuCl4 in solution corresponding to Fig. 4.
2
Table S3 Details of the experimental condition for in-situ synthesis of silver
nanoparticles at different temperatures.
pH
value
pH=10
Temperature
40 oC
50 oC
60 oC
70 oC
80 oC
90 oC
Ag40-103
Ag50-103
Ag60-103
Ag70-103
Ag80-103
Ag90-103
Concentration
of
silver ions
0.3 mM
Table S4 Details of the experimental condition for in-situ synthesis of gold
nanoparticles at different temperatures.
pH
value
pH=5
Temperature
40 oC
50 oC
60 oC
70 oC
80 oC
90 oC
Au-405-6
Au-505-6
Au-605-6
Au-705-6
Au-805-6
Au-905-6
Concentration
of
gold ions
0.06 mM
3
(a)
40 oC
50 oC
60 oC
70 oC
80 oC
90 oC
5
K/S
4
3
2
1
0
400
450
500
550
600
650
6
(b)
5
Maximum K/S
6
4
3
2
1
0
700
40
50
60
70
o
80
90
Temperature ( C)
Wavelength (nm)
Figure S2 a K/S curves of ramie fibers with silver nanoparticles obtained with 0.3
mM of AgNO3 and pH = 10 at different temperatures. b Plot of maximum K/S value
of silver nanoparticle treated ramie fibers as a function of temperature.
1.0
40 oC
50 oC
60 oC
70 oC
80 oC
90 oC
(a)
K/S
0.8
0.6
0.4
0.2
1.1
1.0
Maximum K/S
1.2
(b)
0.9
0.8
0.7
0.6
0.5
0.0
400
450
500
550
600
Wavelength (nm)
650
700
40
50
60
70
80
90
o
Temperature ( C)
Figure S3 a K/S curves of ramie fibers with gold nanoparticles obtained with 0.06
mM of HAuCl4 and pH = 5 at different temperatures. b Plot of maximum K/S value
of gold nanoparticle treated ramie fibers as a function of temperature.
4
Figure S4 Photograph of ramie fibers treated in (Left) AgNO3 (0.3 mM) and (Right)
HAuCl4 (0.06 mM) solutions at pH = 7 and 90 oC.
Table S5 Details of the experimental condition for in-situ synthesis of silver nanoparticles at
different pH values.
Temperature
90 oC
pH value
Concentration
of silver ions
pH=7
pH=8
pH=9
pH=10
pH=11
pH=12
Ag-907-3
Ag-908-3
Ag-909-3
Ag-9010-3
Ag-9011-3
Ag-9012-3
0.3 mM
Table S6 Details of the experimental condition for in-situ synthesis of gold nanoparticles at
different pH values.
Temperature
90 oC
pH value
Concentration
of gold ions
pH=2
pH=3
pH=4
pH=5
pH=6
pH=7
Au-902-6
Au-903-6
Au-904-6
Au-905-6
Au-906-6
Au-907-6
0.06 mM
5
Figure S5 Evolution of the color difference (ΔE) of ramie fabrics with in-situ
synthesized silver and gold nanoparticles as the number of washing cycles increased.
Absorbance (a.u.)
0.6
(a)
0 min
10 min
20 min
30 min
40 min
50 min
60 min
70 min
80 min
90 min
0.5
0.4
0.3
0.2
0.1
0.0
200
0.7
(b)
0.6
Intenstiy (a.u.)
0.7
0.5
0.4
Untreated
Au-90-5-6
0.3
0.2
0.1
0.0
300
400
500
600
Wavelength (nm)
700
800
0
20
40
60
80
Time (min)
Figure S6 a Evolution of UV-vis absorbance spectra of 4-NP solution with Au-90-5-6
after addition of NaBH4 solution. b Plots of band intensity at 400 nm as a function of
reaction time corresponding to untreated fiber and Au-90-5-6.
6
(a)
(b)
(c)
Figure S7 Antibacterial activity measurement of a blank sample (control), b untreated
bamboo pulp fabric, c silver nanoparticle treated ramie fibers.
Untreated
Ramie-Au
Ramie-Ag
140
120
13
100
80
60
40
20
C chemical shift (ppm)
Figure S8 13C solid-state CP-MAS spectra of the untreated, silver nanoparticle treated
and gold nanoparticle treated ramie fibers.
7
Untreated
Ramie-Ag
Ramie-Au
Absorbance
a
b
c
c
b
a
1000
1500
2000
2500
3000
3500
4000
Wavenumber (cm-1)
Figure S9 FTIR spectra of untreated, silver nanoparticle treated and gold nanoparticle
treated ramie fibers.
Nuclear magnetic resonance (NMR) testing
13
C solid-state NMR experiments were performed on a Bruker Avance III 500 MHz
wide bore NMR spectrometer (1H Lamor frequency of 500.07 MHz) equipped with a
2.5 mm double resonance Magic Angle Spinning (MAS) probe head.
13
C cross
polarization (CP)-MAS NMR spectra were recorded with a MAS rate of 25 kHz. A 75
kHz 1H continuous wave (CW) high power decoupling was applied during acquisition
to eliminate the 1H-13C dipole-dipole broadening and to enhance the
13
C signal. The
use of 10240 scans was applied for each sample, with a recycle delay of 2s.
8