AgBr ternary

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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 ...

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is © The Royal Society of Chemistry 2015

Facile

synthesis

of

Z-scheme

Ag2CO3/Ag/AgBr

ternary

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.

6