Acid Sites Cleavage of Surface-Frustrated Lewis Pairs for Small-Molecule Activation of Mixed Volatile Pollutants
Exploring a new catalytic system to achieve the efficient photocatalytic oxidation of mixed volatile organic compounds (VOCs) is imperative. In this study, an in situ-designed surface-frustrated Lewis pair (SFLPs), coupled with the cleavage of the Lewis acid sites (LAs), effectively activated and mineralized a mixture of toluene (C<sub>7</sub>H<sub>8</sub>) and acetone (C<sub>3</sub>H<sub>6</sub>O). The precise functionalization facilitated by cleaved LAs achieves targeted activation of C-C bonds in C<sub>7</sub>H<sub>8</sub> and central phenyl methyl intermediates, as well as the carbonyl group (C═O) in C<sub>3</sub>H<sub>6</sub>O, via electron cloud polarization and orbital interactions. Therefore, under illumination, ZHS-H exhibits an impressive average decomposition efficiency of 96.78% for a mixture of C<sub>7</sub>H<sub>8</sub> and C<sub>3</sub>H<sub>6</sub>O (50:20 ppm). This study demonstrates the feasibility of activating bond cleavage of mixed VOCs through the synergistic effects of acid-base chemical interactions ("push-pull" effect), offering novel insights for the cleaved design and precise control of acid-base sites to achieve highly selective activation and conversion of complex, multicomponent pollutants.
Authors
- Shuangjun Li (ORCID: https://orcid.org/0000-0001-5522-7083)
- Dieqing Zhang (ORCID: https://orcid.org/0000-0003-4043-771X)
- Bangfu Chen
- Youyu Duan (ORCID: https://orcid.org/0000-0001-8348-6680)
- Haifeng Gong
- Yuhan Li (ORCID: https://orcid.org/0000-0001-7546-3630)
- Qing Wang (ORCID: https://orcid.org/0000-0002-5968-3235)
- Ziran Du (ORCID: https://orcid.org/0009-0004-7682-0555)
- Ziying Ye
Institutions
- Chongqing Technology and Business University (CN)
- Shanghai Normal University (CN)
- Chongqing Jiaotong University (CN)
Publication Details
- Journal
- Environmental Science & Technology
- Published
- 2025-06-06
- DOI
- https://doi.org/10.1021/acs.est.5c00888
- Citations
- 4
- Primary Topic
- Catalytic Processes in Materials Science
- Type
- article
- Field-Weighted Citation Impact
- 2.07
Funders
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- Chongqing Science and Technology Commission
- Science and Technology Commission of Shanghai Municipality
- Chongqing Municipal Education Commission
- Venture and Innovation Support Program for Chongqing Overseas Returnees
- Higher Education Discipline Innovation Project
- National Key Research and Development Program of China