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All Journal IJCR (Indonesian Journal of Chemical Research)
Puspita, Anindia
Unknown Affiliation
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology

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Advanced Semiconductor–Biochar Engineering of TiO2/Biochar Photocatalysts for Efficient Tartrazine Dye Degradation: Mechanistic Insights and UV–Vis Spectrophotometric Evaluation Husein, Saddam; Puspita, Anindia; Tutik; Octonariz, Vito Zhafran
INDONESIAN JOURNAL OF CHEMICAL RESEARCH Vol. 11 No. 1 (2026): Volume 11, ISSUE 1, 2026
Publisher : Chemistry Department, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcr.vol11.iss1.art9

Abstract

This study aimed to evaluate the effectiveness of TiO₂/Biochar photocatalysts for tartrazine dye degradation using UV–Vis spectrophotometric analysis. The experiments were conducted using various catalyst dosages and treatment conditions including UV–Vis irradiation, UV-A irradiation, and dark adsorption. The results showed that the optimum catalyst dosage was 0.5 g with a degradation efficiency of 73%, while UV–Vis irradiation produced the highest degradation activity compared to other treatments. The kinetic study indicated that the degradation process tended to follow pseudo-first-order kinetics. These findings demonstrate that TiO₂/Biochar has strong potential as an effective photocatalyst for tartrazine degradation in wastewater treatment.
Co-Authors Octonariz, Vito Zhafran Saddam Husein, Saddam Tutik