Hanxiang CHEN, Min ZHOU, Zhao MO, Jianjian YI, Huaming LI, Hui XU. 0D/2D CoN/g-C3N4 Composites: Structure and Photocatalytic Performance for Hydrogen Production [J]. Journal of Inorganic Materials, 2022, 37(9): 1001
- Journal of Inorganic Materials
- Vol. 37, Issue 9, 1001 (2022)
1. (a) XRD patterns of 2D g-C3N4, and 10% CoN/2D g-C3N4 samples, and CoN, (b) FT-IR spectra of 2D g-C3N4, and CoN/2D g-C3N4 samples, (c) UV-Vis diffuse reflectance spectra of 2D g-C3N4, and CoN/2D g-C3N4 samples, and CoN, (d) N2 adsorption-desorption isomers of 2D g-C3N4 and 10% CoN/2D g-C3N4
2. SEM images of (a) 2D g-C3N4, (b) CoN and (c) 10% CoN/2D g-C3N4, and (d, e) TEM images and (f) HR-TEM image of 10% CoN/2D g-C3N4
3. (a) Photocatalytic hydrogen evolution with photocatalysts under visible light irradiation, and (b) hydrogen evolution stability test of 10% CoN/2D g-C3N4 under visible light irradiation (10% TEOA as sacrificial agent, 10 mg catalyst usage, xenon lamp as light source, λ >400 nm)
4. (a) Steady-state PL spectra excited at 384 nm, (b) photocurrent-time dependence, (c) electrochemical impedance spectra (EIS) of 2D g-C3N4 and 10% CoN/2D g-C3N4, and (d) Motschottky (MS) curves of 2D g-C3N4 and 10% CoN/2D g-C3N4
5. ESR spectra of (a, c) DMPO-·O2- and (b, d) ·OH O2- and (b, d) ·OH (a, b) under visible-light irradiation and (c, d) without light irradiation of the 2D g-C3N4 and 10% CoN/2D g-C3N4
S1. (a) SEM image of 10% CoN/2D g-C3N4, (b-d) EDS elemental mappings from C, N and Co corresponding to 10% CoN/2D g-C3N4
S2. (a) XPS survey spectra of 10% CoN/2D g-C3N4 and 2D g-C3N4, (b) Co2p XPS spectra of CoN and 10% CoN/2D g-C3N4, (c) C1s and (d) N1s XPS spectra of 2D g-C3N4 and 10% CoN/2D g-C3N4
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Table 1. Different types of strategies for g-C3N4 and their hydrogen evolution performance
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