Chinese Journal of Catalysis ›› 2025, Vol. 69: 271-281.DOI: 10.1016/S1872-2067(24)60196-8
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Xiaoning Zhan, Yucheng Jin, Bin Han(), Ziwen Zhou, Baotong Chen, Xu Ding, Fushun Li, Zhiru Suo, Rong Jiang(
), Dongdong Qi, Kang Wang, Jianzhuang Jiang(
)
Received:
2024-10-09
Accepted:
2024-11-07
Online:
2025-02-18
Published:
2025-02-10
Contact:
E-mail: Supported by:
Xiaoning Zhan, Yucheng Jin, Bin Han, Ziwen Zhou, Baotong Chen, Xu Ding, Fushun Li, Zhiru Suo, Rong Jiang, Dongdong Qi, Kang Wang, Jianzhuang Jiang. 2D Phthalocyanine-based covalent organic frameworks for infrared light-mediated photocatalysis[J]. Chinese Journal of Catalysis, 2025, 69: 271-281.
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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(24)60196-8
Fig. 1. PXRD patterns of ZnPc-DPA-COF (a) and CuPc-DPA-COF (b). Simulated packing structures of ZnPc-DPA-COF (c,d) and CuPc-DPA-COF (e,f) via π-π interactions (C: gray; N: cyan; O: red; Zn: violet; Cu: orange; H: white). SEM, TEM, HRTEM, and EDS mapping photos for ZnPc-DPA-COF (g?j) and CuPc-DPA-COF (k?n).
Fig. 2. FT-IR spectra (a), XPS spectrum (b), and N2 adsorption (solid) and desorption (hollow) curves (c) at ?196 °C of ZnPc-DPA-COF. XANES spectra (d) and EXAFS curves (e) of Zn foil, ZnPc, and ZnPc-DPA-COF at Zn K-edge. (f) The experimental and fitting EXAFS curves of ZnPc-DPA-COF. WT-EXAFS of ZnPc-DPA-COF (g), ZnPc (h), and Zn foil (i).
Fig. 3. (a) EIS curves. Solid and liquid UV-vis spectra (Insert: Nyquist plots) of ZnPc-DPA-COF (b) and CuPc-DPA-COF (c). Mott-Schottky plots of ZnPc-DPA-COF (d) and CuPc-DPA-COF (e). (f) Experimental energy levels of ZnPc-DPA-COF and CuPc-DPA-COF.
Fig. 4. (a) Time-dependent catalytic efficiency of ZnPc-DPA-COF under infrared light. (b) Selective oxidation of organic sulfide yield by photocatalysis of ZnPc-DPA-COF for 4.0 h in O2 atmosphere. (c) Recycling test of ZnPc-DPA-COF. (d) The number of photocatalysts reported for sulfide oxidation reactions under different types of light irradiation in the past three years. ESR detection of 1O2 generation trapped by TEMP (e) and ?O2? generation trapped by DMPO (f). (g) Quenching experiments on the photocatalytic oxidation of methylphenyl-sulfide. (h) Plausible mechanism for this photocatalytic oxidation reaction.
Entry | Substrate | Time (h) | Conv. b (%) | Sel. (%) | TOF (mmol g−1 h−1) |
---|---|---|---|---|---|
1 | R = H | 8 | >99 | >99 | 6.25 |
2c | R = H | 8 | trace | trace | trace |
3d | R = H | 8 | trace | trace | trace |
4e | R = H | 8 | trace | trace | trace |
5f | R = H | 8 | trace | trace | trace |
6g | R = H | 8 | 83 | >99 | 5.19 |
7h | R = H | 8 | trace | trace | trace |
8 | R = CH3 | 7 | >99 | >99 | 7.14 |
9 | R = OCH3 | 4 | >99 | >99 | 12.5 |
10 | R = Cl | 8 | 69 | >99 | 4.31 |
11 | R = NO2 | 8 | 53 | >99 | 3.31 |
Table 1 Photocatalytic oxidation of sulfides to sulfoxide under different conditions a.
Entry | Substrate | Time (h) | Conv. b (%) | Sel. (%) | TOF (mmol g−1 h−1) |
---|---|---|---|---|---|
1 | R = H | 8 | >99 | >99 | 6.25 |
2c | R = H | 8 | trace | trace | trace |
3d | R = H | 8 | trace | trace | trace |
4e | R = H | 8 | trace | trace | trace |
5f | R = H | 8 | trace | trace | trace |
6g | R = H | 8 | 83 | >99 | 5.19 |
7h | R = H | 8 | trace | trace | trace |
8 | R = CH3 | 7 | >99 | >99 | 7.14 |
9 | R = OCH3 | 4 | >99 | >99 | 12.5 |
10 | R = Cl | 8 | 69 | >99 | 4.31 |
11 | R = NO2 | 8 | 53 | >99 | 3.31 |
Fig. 5. (a) The distribution of orbital electron wavefunctions of ZnPc-DPA-COF. The charge density of ZnPc-DPA-COF (b) and CuPc-DPA-COF (c). The EDD diagram of ZnPc-DPA-COF (d) and CuPc-DPA-COF (e). (f) The ESP diagram of ZnPc-DPA-COF. (g) O2 adsorption models. (h) The differential charge density maps of ZnPc-DPA-COF and CuPc-DPA-COF and the charge density differences of adsorbed O2 on ZnPc-DPA-COF and CuPc-DPA-COF. The cyan and yellow areas represented electron increase and decrease, respectively. (i) The overlap of O (2p) & Zn (3dz2) in pDOS. (j) The Gibbs free energy diagram for the reaction pathways.
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