Work

Influence of the medium pH on the catalytic activity of the CuO-based catalyst in the Fenton system

Year: 2025

Type: article

Abstract: The influence of the medium pH on the activity of the heterogeneous nanostructured magnetically sensitive catalyst SiO2/CoFe2O4/SiO2/CuO in the Fenton system was investigated and the reaction mechanism was proposed. It was determined that the catalytic centers are Cu+ and Cu2+. It was established that the rate of destruction of the dye methylene blue (MB) as a model wastewater pollutant in the first 20 min of the process depends on pH, and its value decreases in the pH range (9)>(6)>(3). After 2 h, for all initial pH values, the degree of MB destruction reaches 85-90%, and the pH changes to neutral. The proposed system can be used in the technology of post-treatment of industrial and domestic wastewater.

Source: Physics and Chemistry of Solid State

DOI: 10.15330/pcss.26.2.235-239

Authors: Olena Makido, Galyna Khovanets', Oksana Kurylets

Institutions: Department of Physical Chemistry of Fossil Fuels of the Institute of Physical-Organic Chemistry and Coal Chemistry named after L. M. Lytvynenko of the National Academy of Sciences of Ukraine, Lviv Polytechnic National University

Language: English

Topic: Advanced oxidation water treatment

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: diamond

Funders: Lviv Polytechnic National University, Division of Chemistry