CUED Publications database

Hybridizing photoactive zeolites with graphene: A powerful strategy towards superior photocatalytic properties

Ren, Z and Kim, E and Pattinson, SW and Subrahmanyam, KS and Rao, CNR and Cheetham, AK and Eder, D (2012) Hybridizing photoactive zeolites with graphene: A powerful strategy towards superior photocatalytic properties. Chemical Science, 3. pp. 209-216. ISSN 2041-6520

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Abstract

Research on zeolitic materials has recently taken off in a new direction, driven by the desire to design nanoscale hierarchical architectures with specific chemical functionalities. From both, a scientific and industrial perspective, photoactive zeolites, such as titanosilicates (TS-1), are among the most interesting candidates and research has focused on maximising their photocatalytic performance by means of nanostructuring and electronic modification. In this work, we employ graphene to create a new class of photocatalysts that truly advances semi-conductor photocatalysis to its next generation. We demonstrate that the photocatalytic activity of TS-1 for the degradation of organic dyes can be enhanced through graphene by more than 25 times. Responsible for this remarkable improvement are (1) a more efficient electron-hole separation via interfacial charge transfer processes and (2) surprising beneficial effects of graphene on the crystal morphology, the porosity and the adsorption behaviour of the zeolite. © 2012 The Royal Society of Chemistry.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron Job
Date Deposited: 12 Sep 2018 20:15
Last Modified: 04 Jun 2020 15:32
DOI: 10.1039/c1sc00511a