title: 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 (H2O2) 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 H2O2. The PE/AgNPs-OA exhibited a wide linear calibration range from 1.7 μM to 30 mM for the determination of H2O2with a low limit of detection, 0.5 μM. The good recovery percentage (95.2-96.2%) and interference study for determination of H2O2in 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 H2O2in CV compared to other commercially available electrodes and custom-made modified electrodes.
authors.affiliation: Department of Chemistry, Guru Ghasidas Vishwavidyalaya , Bilaspur CG-495009, India.
authors.forename: Archana
authors.initials: A
authors.lastname: Ghosale
authors.affiliation: Department of Chemistry, Guru Ghasidas Vishwavidyalaya , Bilaspur CG-495009, India.
authors.forename: Kamlesh
authors.identifier: 0000-0003-3035-3168
authors.initials: K
authors.lastname: Shrivas
authors.affiliation: Nanoscience and Nanoengineering Program, South Dakota School of Mines and Technology , Rapid City, South Dakota 57701, United States.|Fujifilm Imaging Colorants, Inc. 233 Cherry Lane, New Castle, Delaware 19720, United States.
authors.forename: Ravi
authors.initials: R
authors.lastname: Shankar
authors.affiliation: Department of Chemistry, Institute of Science, Banaras Hindu University , Varanasi, 221005, UP India.
authors.forename: Vellaichamy
authors.initials: V
authors.lastname: Ganesan