Title :

A Comparative Study on the Choice of the Support in the Elaboration of Photocatalysts for the Photooxidation of Benzyl Alcohol under Mild Conditions

Author(s) :

Herve, Lenaick [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Heyte Dyshlovenko, Svetlana [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Marinova, Maya [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Paul, Sébastien [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Wojcieszak, Robert [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Thuriot, Joelle [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]

Journal title :

Solids

Abbreviated title :

Solids

Volume number :

5

Pages :

172-192

Publisher :

MDPI

Publication date :

2024-04-01

ISSN :

2673-6497

English keyword(s) :

photooxydation
g-C3N4
benzyl alcohol
benzaldehyde
gold nanoparticles
water solvent

HAL domain(s) :

Chimie/Catalyse

English abstract : [en]

In the quest to combat global warming, traditional thermal chemistry processes are giving way to selective photocatalysis, an eco-friendly approach that operates under milder conditions, using benign solvents like water. ...
Show more >In the quest to combat global warming, traditional thermal chemistry processes are giving way to selective photocatalysis, an eco-friendly approach that operates under milder conditions, using benign solvents like water. Benzaldehyde, a versatile compound with applications spanning agroindustry, pharmaceuticals, and cosmetics, serves as a fundamental building block for various fine chemicals. This study aims at enhancing benzaldehyde production sustainability by utilizing photooxidation of benzyl alcohol. Gold nanoparticle-based catalysts are renowned for their exceptional efficiency in oxidizing bio-based molecules. In this research, Au nanoparticles were anchored onto three distinct supports: TiO2, ZrO2, and graphitic carbon nitride (g-C3N4). The objective was to investigate the influence of the support material on the selective photocatalysis of benzyl alcohol. In the preparation of g-C3N4, three different precursors—melamine, urea, and a 50:50 mixture of both—were chosen to analyze their impact on catalyst performance. After 4 h of irradiation at 365 nm, operating under acidic conditions (pH = 2), the Au photocatalyst on graphitic carbon nitride support synthesized using urea precursor (Au@g-C3N4(��������)) displayed the optimal balance between conversion (75%) and selectivity (85%). This formulation outperformed the benchmark Au@TiO2, which achieved a similar conversion rate (80%) but exhibited lower selectivity (55%).Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

ANR Project :

Plateforme intégREe AppLiquée au criblage haut débit de CATalyseurs pour les bioraffineries

Administrative institution(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

Valorisation des alcanes et de la biomasse (VAALBIO)

Submission date :

2024-09-07T21:01:11Z
2024-09-11T14:30:16Z