Issue 24, 2017

Facile synthesis of nickel oxide thin films from PVP encapsulated nickel sulfide thin films: an efficient material for electrochemical sensing of glucose, hydrogen peroxide and photodegradation of dye

Abstract

Nickel oxide thin films were grown on ITO (indium tin oxide) substrates by two-step processes: (i) electrodeposition of polymer encapsulated nickel sulfide (PVP-NiS) thin films and (ii) thermal air oxidation of the as-deposited PVP-NiS thin films at 350 °C. A drastic morphological change occurred due to the phase transformation. The cyclic voltammetry study shows that the ITO/NiO electrode facilitates the oxidation of glucose along with an excellent reactivity towards its sensing. The CV study also reveals that the material is effective as an electrode material for the reduction of hydrogen peroxide (H2O2). The amperometric study shows that the electrode has an ultrasensitive current response (1013.76 μA mM−1) with a detection limit of 4.6 μM (signal to noise ratio (S/N) = 3) for glucose and a sensitivity of 82.73 μA mM−1 with a detection limit of 5.2 μM was observed for H2O2. In addition, excellent selectivity and stability have been observed for both cases. The sensor was tested in a wide range concentration of glucose and peroxide and a linear response was observed. Low detection limit, high sensitivity as well as ease of fabrication are some of the advantages of the proposed ITO/NiO sensor. The material also shows a high photocatalytic activity toward dye degradation. The morphological advantage, i.e. spherical porous nanograins, allows a more efficient transport of the reactant molecules to the active interfaces and results in a strong photocatalytic activity to degrade methyl orange (MO) dye.

Graphical abstract: Facile synthesis of nickel oxide thin films from PVP encapsulated nickel sulfide thin films: an efficient material for electrochemical sensing of glucose, hydrogen peroxide and photodegradation of dye

Supplementary files

Article information

Article type
Paper
Submitted
11 Aug 2017
Accepted
23 Oct 2017
First published
30 Oct 2017

New J. Chem., 2017,41, 14985-14994

Facile synthesis of nickel oxide thin films from PVP encapsulated nickel sulfide thin films: an efficient material for electrochemical sensing of glucose, hydrogen peroxide and photodegradation of dye

S. Jana, G. Mondal, B. C. Mitra, P. Bera, B. Chakraborty, A. Mondal and A. Ghosh, New J. Chem., 2017, 41, 14985 DOI: 10.1039/C7NJ02985C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements