Rose Bengal Immobilized on Cellulose Paper for Sustainable Visible‐Light Photocatalysis

Medy C Nongbe (1, 2) , Abollé Abollé (3, 4) , Vincent Coeffard (1) , François‐xavier Felpin (1)

1 CEISAM - Chimie Et Interdisciplinarité : Synthèse, Analyse, Modélisation
2 UJloG - Université Jean Lorougnon Guédé
3 UCP - Unité de Chimie et Procédés
4 Laboratoire de Thermodynamique et de Physico-Chimie du Milieu (LTPCM) Université Nangui Abrogoua Abidjan

This work reports the heterogenization of Rose Bengal dye on simple cellulose paper sheets (Cell-RB) through copper-catalyzed azide-alkyne click ligation. The photocatalytic properties of Cell-RB under green LED irradiation were evaluated in a series of dehydrogenative transformations for the functionaliza-tion of N-aryltetrahydroisoquinolines and quinoxalin-2(1H)ones. The excellent photocatalytic activities observed, associated to the ease of recovery with simple tweezers, highlight the strong assets of Cell-RB with respect to traditional homogeneous organic photocatalysts.

Mots clés: cellulose; heterogeneous photocatalyst; photocatalysis; rose bengal; visible-light

Domaines: Chimie

Medy C Nongbe, Abollé Abollé, Vincent Coeffard, François‐xavier Felpin. Rose Bengal Immobilized on Cellulose Paper for Sustainable Visible‐Light Photocatalysis. ChemPlusChem, 2022, 87 (9), ⟨10.1002/cplu.202200242⟩. ⟨hal-04025898⟩