Electrochemical Photodegradation of Methyl Red using Reduction Graphene Oxide of Palm Shells Supported TiO2 Nanoparticle under Visible Irradiation.

Autor: Irwan, Irwan, Jumbi, Intan Sari, Alimin, Alimin, Ratna, Ratna, Nohong, Nohong, Maulidiyah, Maulidiyah, Nurdin, Muh, Muzakkar, Muh Zakir
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Zdroj: Analytical & Bioanalytical Electrochemistry; Jul2023, Vol. 15 Issue 7, p556-567, 12p
Abstrakt: Contamination of dyes such as methyl red in the aquatic environment causes numerous problems. Therefore, it is necessary to develop a novel catalyst that can quickly, accurately, and effectively eliminate dye contaminants. In this study, we report the successful preparation of a new candidate electrode, the rGOps-TiO2 composite, via a hydrothermal method. Additionally, the electrodes were characterized using X-ray diffraction, spectroscopic techniques such as FTIR, and microscopic techniques such as SEM-EDX to ensure the synthesis of the prepared electrode material. The photocurrent response indicated that the rGOps-TiO2 electrode exhibited higher visible light absorption compared to the undoped rGOps. The degradation efficiency of methyl red reached 90.04% in the UV irradiation-assisted photoelectrocatalytic process, which was significantly different from the efficiency achieved under visible light irradiation, which was 94.78%. Therefore, the photoelectrocatalytic (PEC) technique based on rGOps-TiO2 showed much higher degradation efficiency for methyl red compared to the photocatalytic (PC) technique. This suggests that PEC holds promise for the treatment of dye wastewater in aquatic environments. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index