Solid State-Supported Porphyrins and Phthalocyanines as Catalysts and Photocatalysts
A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Catalytic Materials".
Deadline for manuscript submissions: closed (10 November 2022) | Viewed by 2960
Special Issue Editor
Special Issue Information
Dear Colleagues,
The applications of porphyrins, phthalocyanines, and related macrocycles are intensively studied in many fields. Porphyrinod macrocycles resemble naturally occurring porphyrins and derivatives in both structure and function, and their catalytic and photocatalytic properties are constantly investigated. Porphyrinoids may be used to mimic the activity of cytochrome P450 in selective oxidation of organic molecules, leading to valuable chemicals. As a more robust approach, they could be investigated as a tool for water treatment through the oxidative decomposition of organic pollutants. Upon illumination with light, certain macrocycles may generate reactive oxygen species, including singlet oxygen, which further extends the scope of the catalytic activity. Apart from oxidation reactions, the catalytic activity of porphyrinoid macrocycles also involves the formation of cyclic carbonates from epoxides or coupling reactions of diazo compounds.
The use of macrocycles as homogeneous catalysts has certain disadvantages, such as molecule aggregation caused by π–π stacking interactions or self-oxidation reactions, leading to deactivation of the catalyst. Therefore, there is a strong interest in using porphyrins and phthalocyanines in solid supports, as immobilization facilitates catalyst recovery and reuse, minimizing macrocycle self-oxidation. Various materials have been utilized to date, such as titanium oxide, silica, mesoporous silica, graphene, and carbon nanotubes.
This Special Issue aims to summarize the progress and advances in the development of new catalytic and photocatalytic systems based on solid-state-supported porphyrinoids. You are cordially invited to submit contributions presenting your recent research articles, reviews, and brief communications revealing new trends in the research on porphrinoid macrocycles immobilized on a solid support and their catalytic activity.
Dr. Michal Kryjewski
Guest Editor
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Keywords
- catalysis
- immobilization
- porphyrin
- photocatalysis phthalocyanine
