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Effect of Nickel Concentration on Ozone Production using Nickel-Antimony Doped Tin Oxide for Wastewater Treatment

Lookup NU author(s): Supandee Maneelok, Dr Pierrot Attidekou



This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


© 2022, Thaksin University. All rights reserved. Nickel-antimony doped tin oxide (NATO) catalyst has greatly considered its capability to treat high organic matter and eliminate colour in wastewater as palm oil mill wastewater with electrochemical ozone generation. This study presents the optimal Ni content of NATO and its properties to enhance ozone generation. The NATO anodes were fabricated by dip-coating, varying the Ni content between 0.5% and 5%. The key findings show that all anodes showed a single phase of rutile structure with the cracked mud on the surface. The binding energies of the Sb3d3/2 peak at 540.48 eV and 541.58 eV agree with Sb3+ and Sb5+, respectively. The optimal ozone current efficiency of 37% at the current density of ca. 0.22 A cm-2 in 0.5 M H2SO4 at 2.7V was obtained on the NATO anode with 2% Ni content calcined at 700oC. The palm oil mill wastewater treatment had the efficiency of decolourisation TOC and COD removal increased with increasing electrolysis time. The colour removal efficiency achieved was more than 85% for a reaction time of 15 min. The efficiency of TOC and COD removal was reached ca. 80% in 20 min. The overall results appeared that NATO with electrochemical ozone generation could be employed to treat palm oil mill wastewater with high efficiency due to •OH and O3.

Publication metadata

Author(s): Maneelok S, Attidekou PS

Publication type: Article

Publication status: Published

Journal: ASEAN Journal of Scientific and Technological Reports

Year: 2022

Volume: 25

Issue: 2

Pages: 50-58

Online publication date: 26/06/2022

Acceptance date: 22/06/2022

Date deposited: 04/01/2024

ISSN (electronic): 2773-8752

Publisher: Thaksin University


DOI: 10.55164/ajstr.v25i2.246691


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Funder referenceFunder name
National Research Council of Thailand
R01-2562 70329