ars.els-cdn.com · web viewbet surface area (m2/g) pore volume (cm3/g) average pore size (nm) g-c 3...
TRANSCRIPT
Supporting information
Construction of ultrathin 2D/2D g-C3N4/In2Se3 heterojunctions with
high-speed charge transfer nanochannels for promoting
photocatalytic hydrogen production
Shumin Zhang a, b, Difa Xu b, Xiaohua Chen a, *, Shiying Zhang b, *, Changsheng An b, *
a College of Materials Science and Engineering, Hunan University, Changsha, 410082, People's
Republic of China
b Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University,
Changsha 410005, Hunan Province, People's Republic of China
Corresponding author
*Xiaohua Chen Tel: +86-13723899609. E-mail: [email protected].
*Shiying Zhang Tel: +86-731-84261297. E-mail: [email protected].
1
Figure S1. XRD patterns of In2Se3 before and after calcination.
Figure S2. XRD patterns of prepared samples.
Figure S3. SEM images of prepared samples (a) CNIS-2 (b) CNIS-4 (c) CNIS-10.
2
Figure S4. The elemental mapping images of C, N, In and Se in CNIS-6 sample.
Figure S5. XPS survey of g-C3N4, In2Se3 and CNIS-6.
3
In
C N
Se
Figure S6. XRD patterns of CNIS-6 before and after reaction.
Table S1 The BET surface area, pore volume and average pore size of prepared samples
BET surface area (m2/g) Pore Volume (cm3/g) Average pore size (nm)
g-C3N4 135.3 0.8 23.5In2Se3 48.0 0.3 25.9
CNIS-2 151.3 0.9 23.8CNIS-4 138.9 0.9 25.7CNIS-6 128.7 0.9 28.5CNIS-10 113.4 0.9 32.4
4