heterostructured nanorods with improved photostability and photoactivity Jingjing Li, Yunlong Xie, Yijun Zhong, and Yong Hu*
Fig. S1 SEM images of the as-prepared 1D Ag2CO3/Ag/AgBr HNRs (sample H-2) and AgBr/Ag (sample H-4) synthesized with 10.96mM of CTAB.
Fig. S2 EDS spectrum of the as-prepared sample H-2.
1
a Absorbance(a.u.)
Original
400
30min
450
500
550
600
650
Wavelength(nm)
700
b Absorbance(a.u.)
Original
200
30min
300
400
500
600
Wavelength(nm)
700
Fig. S3 Absorption spectral changes of RhB (a) and MO (b) aqueous solutions over sample H-2 under visible light irradiation.
2
1.0
0.8 0.7
Adsorption
C/CO
0.9
Ag2CO3/Ag H-2 Blank
0.6 0.5
0
20
40
60
80
Time(min)
100
120
Fig. S4 Photocatalytic degradation of benzyl alcohol using sample H-2 and Ag2CO3/Ag under visble-light illumination.
3
1.0
0.6 0.4
Adsorption
C/CO
0.8
0.2 0.0
0
5
10
15
20
Time(min)
25
30
Fig. S5 Photocatalytic degradation of RhB using sample H-2 under visible-light illumination. Error bars are the repeatability errors assuming ±2.5% concentration determination error.
4
a
1st run
1.0
2nd run
3rd run
4th run
C/Co
0.8 0.6 0.4 0.2 0.0 15 30 15 30 15 30 15 30 25 30
Time(min)
* Ag2CO3
220
200
c
＃
＃ AgBr
220
222
300
222 410
330
110
20
△
＃
50
60
420 311
111
Ag
△
*
*
10
△
Intensity(a.u)
＃
＃
△
0
** *
30
40
2(degree)
70
80
Fig. S6 4 cycles of the degradation of RhB using sample H-2: (a) SEM image (b) and XRD parttern (c) of sample Sc after 4 cycles of the degradation of RhB.
5
Current density ( A/cm2)
2.5
on
2.0
Ag2CO3/Ag H-2
off
1.5 1.0 0.5 0.0 0
40
80
120
160
Time(min)
200
240
Fig. S7 Photocurrent response of the as-prepared binary Ag2CO3/Ag and ternary Ag2CO3/Ag/AgBr HNRs (sample H-2) under visible-light illumination.
Table S1. Composition of the as-prepared sample H-2 before and after 4 times recycling.
