DOI: https://doi.org/10.14710/presipitasi.v0i0.%25p

CuO-CeO₂ Photocatalysis for the Degradation of Remazol Textile Dyes

*Putri Redita Rositasari  -  Universitas Pembangunan Nasional Veteran Jawa Timur, Indonesia
Thineza Ardhea Pramesti  -  Chung Yuan Christian University, Taiwan
Tuhu Agung Rachmanto  -  Universitas Pembangunan Nasional Jawa Timur, Indonesia
Aussie Amalia  -  Universitas Pembangunan Nasional Jawa Timur, Indonesia

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Abstract

Water pollution, particularly from textile industrial waste, has become an increasingly significant environmental issue. Textile waste, especially synthetic dyes, contributes substantially to water pollution due to its complex structure and low biodegradability. Dyes such as Remazol Brilliant Red and Remazol Turquoise Blue, commonly used in the textile industry, are stable, toxic, and difficult to degrade biologically. One promising approach to address this issue is photocatalysis, using photocatalysts such as CuO and CeO₂, which possess high degradation capabilities for organic contaminants. This study explores the effectiveness of CuO-CeO₂-based photocatalysts in degrading Remazol Turquoise Blue and Remazol Brilliant Red dyes. The photocatalysts were synthesised with varying CuO-CeO₂ concentrations, and degradation tests were conducted using UV light to observe dye degradation. The results show that CuO-CeO₂ photocatalysts at a concentration of 25% achieved the highest degradation efficiency, with nearly 41.5% removal of Remazol Turquoise Blue and 26.1% removal of Remazol Brilliant Red after 120 minutes. Increasing the photocatalyst concentration indicates an increase in active sites, accelerating the degradation process. However, there is a limitation at very high concentrations due to the potential for catalyst particle agglomeration.

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Keywords: Photocatalysis; CuO-CeO₂; textile dye degradation; Remazol Turquoise Blue; Remazol Brilliant Red.

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Section: Original Research Article
Language : EN
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