What question did this study set out to answer?

To synthesize a biomimetic tin porphyrin-based porous aromatic framework and clarify its photocatalytic mechanisms during the visible light-promoted aerobic oxidation of sulfides to sulfoxides.

September 9, 2018Advanced Synthesis & Catalysis

Photocatalytic Properties and Mechanistic Insights into Visible Light‐Promoted Aerobic Oxidation of Sulfides to Sulfoxides via Tin Porphyrin‐Based Porous Aromatic Frameworks

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Authors

JJJun JiangZhengzhou University RLRongchang LuoGuangdong University of Technology XZXiantai ZhouSun Yat-sen University

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Implication

Experimental study demonstrates efficient visible-light aerobic oxidation of sulfides to sulfoxides using reusable tin porphyrin frameworks, suggesting a robust platform for biomimetic photocatalysis.

Key Points

To synthesize a biomimetic tin porphyrin-based porous aromatic framework and clarify its photocatalytic mechanisms during the visible light-promoted aerobic oxidation of sulfides to sulfoxides.
Synthesized a porous aromatic framework incorporating tin porphyrin (SnPor@PAF) capable of strong visible light absorption.
Assessed catalytic oxidation of sulfides to sulfoxides under ambient conditions, visible light irradiation, and multiple reuse cycles.
Investigated reaction mechanisms using emission quenching, oxygen-isotope labeling, chemical inhibition tests, fluorescent probe assays, α-terpinene photo-oxidation, and in situ electron spin resonance.
SnPor@PAF exhibited enzyme-like high catalytic efficiency and selectivity for aerobic sulfide oxidation under ambient, visible-light conditions.
The heterogeneous catalyst demonstrated high chemical stability and retained activity across multiple consecutive cycles.
Mechanistic analyses confirmed that the π-conjugated skeleton facilitates oxygen activation via energy and electron transfer pathways to generate singlet oxygen and superoxide radical anions.

Cite This Study

Jiang et al. (2018) studied this question.

synapsesocial.com/papers/6a9618691c3bf8c8fd643156 https://doi.org/10.1002/adsc.201800730

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Photocatalytic Properties and Mechanistic Insights into Visible Light‐Promoted Aerobic Oxidation of Sulfides to Sulfoxides via Tin Porphyrin‐Based Porous Aromatic Frameworks

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Cite This Study

Photocatalytic Properties and Mechanistic Insights into Visible Light‐Promoted Aerobic Oxidation of Sulfides to Sulfoxides via Tin Porphyrin‐Based Porous Aromatic Frameworks

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