A top-down design for easy gram scale synthesis of melem nano rectangular prisms with improved surface area

An unprecedented top-down design for the preparation of melem by 1 h stirring of melamine-based g-C 3 N 4 in 80 °C concentrated sulfuric acid (95-98%) was discovered. The melem product was formed selectively as a monomer on the gram scale without the need for controlled conditions, inert atmosphere,...

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Bibliographic Details
Published in:RSC advances 2021-12, Vol.11 (61), p.38862-38867
Main Authors: Nikookar, Mahsa, Rezaeifard, Abdolreza, Maasoumeh Jafarpour, Grzhegorzhevskii, Kirill V, Ostroushko, Alexander A
Format: Article
Language:English
Subjects:
Carbon nitride
Chemistry
Inert atmospheres
Melamine
Prisms
Sulfuric acid
Surface area
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Summary:An unprecedented top-down design for the preparation of melem by 1 h stirring of melamine-based g-C 3 N 4 in 80 °C concentrated sulfuric acid (95-98%) was discovered. The melem product was formed selectively as a monomer on the gram scale without the need for controlled conditions, inert atmosphere, and a special purification technique. The as-prepared air-stable melem showed a distinctive nano rectangular prism morphology that possesses a larger surface area than the melems achieved by traditional bottom-up designs making it a promising candidate for catalysis and adsorption processes. A novel practical method for the gram scale preparation of melem possessing a nano rectangular prism morphology and improved specific surface area through a top-down depolymerization design was developed.
ISSN:2046-2069
2046-2069
DOI:10.1039/d1ra07440g