Proceedings of MATSUS23 & Sustainable Technology Forum València (STECH23) (MATSUS23)
DOI: https://doi.org/10.29363/nanoge.matsus.2023.106
Publication date: 22nd December 2022
Heterogeneous photocatalysis by readily available, metal-free catalysts is of great appeal in view of the increasing pressure on industry to move towards sustainable schemes of chemical production. Graphitic carbon nitride (g-CN) is a versatile semiconductor nanomaterial, well known for applications in energy, such as H2 photocatalytic production and CO2 reduction. We recently highlighted the key role that g-CN could play in the realm of photocatalytic organic synthesis, [1] and showed that tailoring the structure of g-CN by means of minimally invasive post-synthetic protocols could be the solution to tackle challenging coupling reactions with great efficiency.[2,3] Through international collaborations, our group embarked in the in depth investigation of the structure/activity relationship of new g-CN derivatives related to photocatalysis, by means of a combination of advanced spectroscopic techniques [4] and computational methods.[5] The final goal is aims at establishing an approach based on rational design of modified CN materials, with properties tailored to the specific photocatalytic process. Apart from the strict metal-free photocatalysis, an additional possibility arises from the inclusion of single metal atoms into the CN scaffold, whereby the opportunely adjusted CN structure can interact and be in synergy with the metal site. This can be of high relevance both in dual photoredox catalysis for organic synthesis and in energy conversion processes.
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