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<p>The study aims at synthesizing and characterizing biochar-TiO<sub>2</sub> composite to remove organic pollutants represented by methylene blue from water. Biochar with high surface area and adsorption capacity was synthesized with the pyrolysis of palm kernel shells at high temperature and inert conditions, while a hydrothermal process was used in preparing the biochar-TiO<sub>2</sub> composite. Various analytical techniques were utilized to investigate the structural and surface characteristics of this composite, confirming both element integration and effectiveness for dye removal. The study also explored the efficiency of adsorption as well as photodegradation concerning methylene blue dye using these composites. Findings indicated that biochar derived from higher pyrolysis temperatures outperformed those obtained at lower temperatures by 65%. Additionally, an increase in catalyst loading resulted in a 53% enhancement in photocatalytic degradation performance when utilizing the biochar-TiO<sub>2</sub> composites with respect to dye treatment. These outcomes propose that biochar-TiO<sub>2</sub> composites represent promising sustainable materials within leading categories for water purification applications.</p>

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Synthesis of palm kernel shell biochar-TiO2 composite for the photocatalytic degradation of organic pollutants

  • 期刊论文

  • 发表日期：

    2025年7月20日

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  • D. Ariyanti,
  • Y. A. O. Abdelrazig,
  • A. M. Eriza,
  • A. R. Nurwidiyanto,
  • V. C. Srivastava

摘要

The study aims at synthesizing and characterizing biochar-TiO2 composite to remove organic pollutants represented by methylene blue from water. Biochar with high surface area and adsorption capacity was synthesized with the pyrolysis of palm kernel shells at high temperature and inert conditions, while a hydrothermal process was used in preparing the biochar-TiO2 composite. Various analytical techniques were utilized to investigate the structural and surface characteristics of this composite, confirming both element integration and effectiveness for dye removal. The study also explored the efficiency of adsorption as well as photodegradation concerning methylene blue dye using these composites. Findings indicated that biochar derived from higher pyrolysis temperatures outperformed those obtained at lower temperatures by 65%. Additionally, an increase in catalyst loading resulted in a 53% enhancement in photocatalytic degradation performance when utilizing the biochar-TiO2 composites with respect to dye treatment. These outcomes propose that biochar-TiO2 composites represent promising sustainable materials within leading categories for water purification applications.