Polyamine-Mediated Interfacial Assembly of rGO-ZnO Nanostructures: A Bio-inspired Approach and Enhanced Photocatalytic Properties

ACS Applied Materials & Interfaces
Thuniki Naveen ReddyRohit Kumar Rana

Abstract

A bio-inspired approach for the fabrication of reduced graphene oxide (rGO) embedded ZnO nanostructure has been attempted to address issues pertaining to charge recombination and photocorrosion in ZnO for application as an effective photocatalyst. Herein we demonstrate the synthesis of rGO-ZnO nanostructures in a single step using polyamines, which simultaneously aid in the mineralization of ZnO nanostructures from zinc nitrate, reduction of graphene oxide (GO), and finally their assembly to form rGO-ZnO composite structures under environmentally benign conditions. The interspersed nanocomponents in the assembled heterostructures result in enhanced photocatalytic activity under UV light, indicating an effective charge separation of the excited electrons. Furthermore, the composite structure provides stability against photocorrosion for efficient recyclability of the catalyst.

References

Jun 6, 2008·Chemistry : a European Journal·Gousia BegumRohit Kumar Rana
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May 21, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Graeme Williams, Prashant V Kamat
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Jun 9, 2012·ACS Applied Materials & Interfaces·Jinfeng WangXungai Wang
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Oct 15, 2013·Chemical Society Reviews·Chun Kiang Chua, Martin Pumera

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Citations

Dec 31, 2015·ACS Applied Materials & Interfaces·Jianming ZhangJerome P Claverie
Jan 2, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Arpita Jana, Elke Scheer

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