Photocatalytic Activity of Graphene/ZnO Nanocomposite Fabricated by Two-step Electrochemical Route

Journal of Chemical Sciences

A R NANAKKAL¹  L K ALEXANDER¹ 

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关键词: Graphene-metal oxide;    Nanocomposites;    Electrochemistry;    Photocatalysis;    Water purification;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

Graphene-Zinc oxide nanocomposite was synthesised by a novel, facile and environment-friendly two-step electrochemical route aimed at water purification by photocatalysis. The X-ray diffraction, Raman spectroscopy and electron microscopy demonstrate successful implementation of electrolytic route for the synthesis of graphene-metal oxide nanocomposite. UV-Visible diffuse reflectance spectroscopy and photoluminescence measurements were also used to characterise the samples. Based on this work, it is found that for the UVincident radiation, Graphene-ZnO nanocomposite shows an enhanced photocatalytic activity over ZnO. The photocatalytic activity of annealed graphene –ZnO was compared to a standard catalyst Degussa P25 TiO₂. The electrochemical synthesis technique is envisioned to open a reliable, cost-effective and environment sensitive method to fabricate graphene-metal oxide nanocomposites which could lead to various applications especiallyfor photocatalysis.

【 授权许可】

Unknown