LAUSR

Abstract Thin films of hierarchical CuO nanostructures have been prepared. The synthesized material was thoroughly characterized with the help of advanced instrumentation techniques. The CuO modified FTO electrode, i.e. FTO/CuO was taken for amperometric glucose sensing as enzymatic mimic that came out with excellent result with a notably low detection limit of 0.0084 mM. The notably high optical absorption in visible region also makes the material a good candidate to capture visible photons and facilitate photocatalysis of some non-biodegradable organic chemicals like Rhodamine B, Methylene Blue and Congo Red with a faster and better kinetics than many previous reports. The hierarchical structure allows good interaction between the greatly exposed surfaces and facilitates the amperometric sensing and photochemical performances. The estimation of total organic carbon (TOC) content also strengthens the photocatalytic attributes of the synthesized material.