Chinese Journal of Catalysis ›› 2022, Vol. 43 ›› Issue (4): 1184-1191.DOI: 10.1016/S1872-2067(21)63998-0
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Boyu Zhanga, Jiafu Shia,b,c,*(), Yang Zhaoa, Han Wanga, Ziyi Chua, Yu Chena, Zhenhua Wud, Zhongyi Jiangb,d,#(
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Received:
2021-11-09
Accepted:
2021-11-09
Online:
2022-03-05
Published:
2022-03-01
Contact:
Jiafu Shi, Zhongyi Jiang
Supported by:
Boyu Zhang, Jiafu Shi, Yang Zhao, Han Wang, Ziyi Chu, Yu Chen, Zhenhua Wu, Zhongyi Jiang. Pickering interfacial biocatalysis with enhanced diffusion processes for CO2 mineralization[J]. Chinese Journal of Catalysis, 2022, 43(4): 1184-1191.
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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(21)63998-0
Fig. 2. SEM images of ZIF-L (a), CA@ZIF-L (b), ZIF-8 (c), and CA@ZIF-8 (d). FTIR spectra (e) and XRD patterns (f) of CA@ZIF-L, ZIF-L, CA@ZIF-8, and ZIF-8; SAXS data of CA@ZIF-L (g) and CA@ZIF-8 (h) with schemes showing the size of the mesopore.
Fig. 4. (a) Schematic diagram of CO2 conversion catalyzed by CA@ZIF-L and CA@ZIF-8 particles. (b) Degradation rate of 4-NPA by CA@ZIF-L, CA@ZIF-8, and free CA. (c) Relative activity of CA@ZIF-L and CA@ZIF-8 particles. (d) Adsorption rate of coumarin by BSA@ZIF-L and BSA@ZIF-8 particles. Notably, bovine serum albumin (BSA) that commonly applied as the substitute for expensive enzymes was adopted to prepare BSA@ZIFs particles for the adsorption experiment [44].
Fig. 5. (a) Schematic construction process of PIBS enabled by CA@ZIF-L particles. (b) Water contact angles of CA@ZIF-L, CA@ZIF-8, ZIF-L, and ZIF-8 particles. (c) Photograph and optical microscope images of Pickering emulsion stabilized by CA@ZIF-L particles.
Fig. 6. Schematic conversion of CO2 by PIBS (a) and free system (b). When CO2 was introduced at a flow rate of 50 (c) and 100 (d) mL min-1, the pH curve of the PIBS or free system constructed by CA@ZIF-L and CA@ZIF-8 particles.
Fig. 7. (a) Schematic conversion and mineralization of CO2 by CA@ZIFs PIBS. (b) CaCO3 production catalyzed by the PIBS and free systems. (c) Recyclability of CA@ZIF-L PIBS and CA@ZIF-8 PIBS.
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