Low-Cost Paper Electrode Fabricated by Direct Writing with Silver Nanoparticle-Based Ink for Detection of Hydrogen Peroxide in Wastewater

Abstract

A simple, low cost and user-friendly method for the fabrication of paper electrode (PE) using silver nanoparticles capped with octylamine (AgNPs-OA) is reported for detection of hydrogen peroxide (HO) in wastewater samples. The PE was prepared by direct writing onto the photo paper using a ball-point pen filled with nanoink (10 wt % of AgNPs-OA in chloroform). The prepared electrode was sintered at 100 °C for 1 h to make it conductive. The PE/AgNPs-OA was used as a working electrode in cyclic voltammetry (CV) for the detection of HO. The PE/AgNPs-OA exhibited a wide linear calibration range from 1.7 μM to 30 mM for the determination of HO with a low limit of detection, 0.5 μM. The good recovery percentage (95.2-96.2%) and interference study for determination of HO in wastewater samples demonstrated the selectivity of the method from the complex sample matrices. The PE/AgNPs-OA electrode is found to be economic, facile and user-friendly for multiple analyses (n = 60) of HO in CV compared to other commercially available electrodes and custom-made modified electrodes.

The direct-writing of low cost paper based flexible electrodes and touch pad devices using silver nano-ink and ZnO nanoparticles

“…The LSPR absorption band at visible region around 400-420 nm provided the size of NPs in the range of 10-60 nm. 34 In the present study, the LSPR absorption band for Ag NPs/Ino was around 410 nm as shown in Fig. 2(a).…”

“…However, lter papers, printing paper, photo paper, butter paper and bond paper have large pore sizes which caused trapping of the NPs into the bers leading to discontinuity in the electronic track. 34,43 Therefore, the photo paper substrate was used for direct writing of conductive using silver nano-ink.…”

Free‐Standing 3D Electrodes for Electrochemical Detection of Hydrogen Peroxide

“…Archana Ghosale et al fabricated paper electrode through direct "writing" using silver nanoparticles ( Figure 6) for detection of H 2 O 2 in wastewater. [162] The sensor via the simple, low cost and user-friendly method exhibited a wide linear range from 1.7 μM to 30 mM with a low limit of detection of 0.5 μM. The good recovery percentage (95.2-96.2 %) and interference study demonstrated the selectivity toward the complex sample matrices.…”

“…Robust 3D electrodes are selected to test real samples. Archana Ghosale et al fabricated paper electrode through direct “writing” using silver nanoparticles (Figure ) for detection of H 2 O 2 in wastewater . The sensor via the simple, low cost and user‐friendly method exhibited a wide linear range from 1.7 μM to 30 mM with a low limit of detection of 0.5 μM.…”

“…Schematic diagram for the preparation of (a) Ag nano-ink, (b) direct writing of paper-based electrode, and (c) detection of H 2 O 2 with the electrode. [162] Reprinted with permission from [162]. Copyright 2017 American Chemical Society.…”