title: A covalent organic framework-cadmium sulfide hybrid as a prototype photocatalyst for visible-light-driven hydrogen production.
abstract: CdS nanoparticles were deposited on a highly stable, two-dimensional (2D) covalent organic framework (COF) matrix and the hybrid was tested for photocatalytic hydrogen production. The efficiency of CdS-COF hybrid was investigated by varying the COF content. On the introduction of just 1 wt% of COF, a dramatic tenfold increase in the overall photocatalytic activity of the hybrid was observed. Among the various hybrids synthesized, that with 10 wt% COF, named CdS-COF (90:10), was found to exhibit a steep H2 production amounting to 3678 μmol h(-1) g(-1), which is significantly higher than that of bulk CdS particles (124 μmol h(-1) g(-1)). The presence of a π-conjugated backbone, high surface area, and occurrence of abundant 2D hetero-interface highlight the usage of COF as an effective support for stabilizing the generated photoelectrons, thereby resulting in an efficient and high photocatalytic activity.
authors.affiliation: Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008 (India), Fax: (+91) 20-25902636.
authors.forename: Jayshri
authors.initials: J
authors.lastname: Thote
authors.forename: Harshitha Barike
authors.initials: HB
authors.lastname: Aiyappa
authors.forename: Aparna
authors.initials: A
authors.lastname: Deshpande
authors.forename: David
authors.initials: D
authors.lastname: Díaz Díaz
authors.forename: Sreekumar
authors.initials: S
authors.lastname: Kurungot
authors.forename: Rahul
authors.initials: R
authors.lastname: Banerjee
keywords: charge transfer; covalent organic frameworks; hybrid materials; hydrogen production; photocatalysis