Please use this identifier to cite or link to this item: https://doi.org/10.1039/c3ra22950e
Title: Green chemistry synthesis of a nanocomposite graphene hydrogel with three-dimensional nano-mesopores for photocatalytic H2 production
Authors: Gao, M.
Peh, C.K.N.
Ong, W.L.
Ho, G.W. 
Issue Date: 28-Aug-2013
Source: Gao, M., Peh, C.K.N., Ong, W.L., Ho, G.W. (2013-08-28). Green chemistry synthesis of a nanocomposite graphene hydrogel with three-dimensional nano-mesopores for photocatalytic H2 production. RSC Advances 3 (32) : 13169-13177. ScholarBank@NUS Repository. https://doi.org/10.1039/c3ra22950e
Abstract: In this work, we have developed a nanocomposite graphene hydrogel (NGH) based on green chemistry, employing vitamin C (VC) to attain a supramolecular 3D network of hybrid nanostructured materials. Here, it is shown that the hydrogel is an appropriate and robust host for stable a TiO2 semiconductor catalyst sensitized with visible light responsive nanostructured particles. The NGH is tailored with well-defined nano-mesopores, a large surface area, a highly dispersive nanosheet-nanorods-nanoparticle composite, and enhance visible light absorption. Finally, we demonstrate practical applications of utilizing the NGH with water containing pores for photocatalytic H2 production. An important pragmatic consideration of using a NGH is the ease of separation and recovery of the nanosized catalyst after the photoreaction which would otherwise require extensive and expensive nanofiltration. © 2013 The Royal Society of Chemistry.
Source Title: RSC Advances
URI: http://scholarbank.nus.edu.sg/handle/10635/82428
ISSN: 20462069
DOI: 10.1039/c3ra22950e
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