Three-Dimensional Pillared [W<sub>10</sub>O<sub>32</sub>]-Based Metal–Organic Frameworks for Enhanced Photocatalytic CO<sub>2</sub> Reduction
Photocatalytic reduction technology offers a promising pathway for the sustainable transformation of carbon dioxide into value-added chemicals. In this study, two isostructural three-dimensional pillared [W<sub>10</sub>O<sub>32</sub>]<sup>4-</sup>-based metal-organic frameworks (POMOFs), [M<sub>2</sub>(4,4'-bipy)<sub>6</sub>(DMA)<sub>2</sub>W<sub>10</sub>O<sub>32</sub>] (M = Co <b>1</b>, Ni <b>2</b>), have been synthesized under solvothermal conditions. Structural characterization verifies their effective light absorption and photogenerated charge separation capability. As photocatalysts for CO<sub>2</sub> reduction, compound <b>1</b> achieves an effective gaseous product (CO + H<sub>2</sub>) yield of 3149.4 μmol g<sup>-1</sup> h<sup>-1</sup>, while compound <b>2</b> exhibits moderate yields of 1171.1 μmol g<sup>-1</sup> h<sup>-1</sup> with a CO selectivity of 79%. Mechanistic investigations suggest that the electronic band structures of <b>1</b> and <b>2</b> facilitate the catalytic reduction of CO<sub>2</sub> to CO. This research advances the development of tailored [W<sub>10</sub>O<sub>32</sub>]<sup>4-</sup>-based POMOFs for enhanced photocatalytic CO<sub>2</sub> conversion.
Authors
- Shuangxue Wu
- Chao Qin (ORCID: https://orcid.org/0000-0001-7139-1094)
- Li Liu (ORCID: https://orcid.org/0000-0002-2178-9237)
- Xinlong Wang (ORCID: https://orcid.org/0000-0002-5758-6351)
- Haili Guo
- Zhong‐Min Su (ORCID: https://orcid.org/0000-0002-3342-1966)
- Yao-Mei Fu
Institutions
- Northeast Normal University (CN)
- Hainan University (CN)
- Weifang University of Science and Technology (CN)
- Hospital for Tropical Diseases (VN)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2025-09-19
- DOI
- https://doi.org/10.1021/acs.inorgchem.5c03269
- Primary Topic
- Advanced Photocatalysis Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00