Understanding the role of soft linkers in designing hepatzine-based polymeric frameworks as heterogeneous (photo)catalyst

Sunil Kumar, Venugopala Rao Battula, Neha Sharma, Soumadri Samanta, Kamalakannan Kailasam

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The emerging class of heptazine-based polymeric materials has shown potential candidature as photocatalyst materials for hydrogen evolution. At the same time, they have shown promising application as solid base materials to catalyse various organic transformations. Thus, the material design rationale needs to be developed around the heptazine-based polymeric frameworks in order to specifically design task specific materials. Herein, we utilised controlled reaction conditions to synthesize the desired polymeric networks with trichloroheptazine as precursor. Material design strategy employed nitrogen rich [tris(2-aminoethylamine) and hydrazine] as soft linkers to understand the effect on band structure of developed heptazine-based polymeric networks. The developed polymeric networks were explored as platform to study systematically the effect on their respective photophysical properties and understand their surface basicity. The framework having aminoalkyl linker showed superior activity in photocatalysis as well as heterogeneous base catalysis. Further, model catalysts revealed the importance of N-atoms as active basic sites in these systems.

Original languageEnglish
Pages (from-to)138-146
Number of pages9
JournalJournal of Colloid and Interface Science
Volume588
DOIs
StatePublished - 15 Apr 2021
Externally publishedYes

Keywords

  • Band structure
  • Catalysis
  • Heptazine based material
  • Photocatalysis
  • Soft linkers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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