Chinese Journal of Catalysis ›› 2023, Vol. 51: 180-192.DOI: 10.1016/S1872-2067(23)64480-8
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Mingming Song, Xianghai Song, Xin Liu, Weiqiang Zhou(), Pengwei Huo()
Received:
2023-04-13
Accepted:
2023-06-15
Online:
2023-08-18
Published:
2023-09-11
Contact:
*E-mail: wqzhou@ujs.edu.cn (W. Zhou), huopw@ujs.edu.cn (P. Huo).
Supported by:
Mingming Song, Xianghai Song, Xin Liu, Weiqiang Zhou, Pengwei Huo. Enhancing photocatalytic CO2 reduction activity of ZnIn2S4/MOF-808 microsphere with S-scheme heterojunction by in situ synthesis method[J]. Chinese Journal of Catalysis, 2023, 51: 180-192.
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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(23)64480-8
Fig. 1. (a) XRD patterns of the prepared samples. FT-IR spectra (b), nitrogen adsorption-desorption isotherms (c) and BJH pore size distributions (d) of MOF-808, ZIS and ZM6-15%.
Fig. 3. TEM results of MOF-808 (a), ZIS (b), ZM6-15% (c). SEM results of MOF-808 (d), ZIS (e), ZM6-15% (f), and elemental mapping of C (g), O (h), Zr (i), In (j), S (k), Zn (l).
Fig. 4. UV-vis diffuse reflection spectra of different photocatalysts (a), band gap spectra (b), PL emission spectrum (c) and transient fluorescence spectrum (d) of MOF-808, ZIS and ZM6-15% materials monitored under 380 nm laser excitation.
Fig. 6. CO yields (a) and production rate of CO (b) for different photocatalysts. (c) Kinetics curves of CO2 reduction over ZM6-15% under different conditions. (d) GC-MS results of 13CO2, produced over ZM6-15%.
Fig. 7. ESR spectra for DMPO/?O2- in methanol dispersion (a) and for DMPO/?OH in aqueous dispersion (b). In-situ FT-IR spectra for before (c) and after (d) photocatalytic reduction of ZM6-15%.
Fig. 8. UPS spectra of MOF-808 (a) and ZIS (b). Sketches of charge transfer before and after contact (c), side view of ZnIn2S4/MOF-808 structure (d) and the charge density difference for ZnIn2S4/MOF-808 (e).
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