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<p>This work aimed to synthesize and characterize activated carbon derived from durian wastes, a substantial agricultural by-product in Thailand, with a focus on its efficacy in aqueous phenol removal. The activated carbon derived from durian seed (AC-DSE) and activated carbon derived from durian shell (AC-DSH) was prepared using phosphoric acid (H<sub>3</sub>PO<sub>4</sub>) as the activating agent, subsequently, carbonization occurred under a nitrogen atmosphere. The synthesized samples underwent comprehensive characterization. In phenol removal, the adsorption performance of the AC-DSE was notable, achieving a phenol removal efficiency of around 90% within 180&#xa0;min, employing 0.1&#xa0;g of AC-DSE for 20&#xa0;ml of aqueous phenol solution (initial concentration: 10&#xa0;mg/l). Compared with AC-DSH and a commercial activated carbon, the obtained AC-DSE exhibited the highest phenol removal due to high specific surface area of 2,054 m<sup>2</sup>/g, with an average pore size of 3.85&#xa0;nm, micro, and mesopore volumes of 1.43 and 2.27 cm<sup>3</sup>/g, respectively. Moreover, the adsorption behaviour followed to the Langmuir model, while the experimental data closely aligned with the pseudo-second-order kinetic model. These findings emphasize the potential of activated carbon derived from durian waste as a sustainable adsorbent for organic removal from wastewater.</p>

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Harnessing durian seed and shell waste-derived activated carbon for effective aqueous phenol removal

  • 期刊论文

  • 发表日期：

    2025年2月9日

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  • Pilasinee Limsuwan,
  • Jutharat Pongpai,
  • Doungporn Yiamsawas,
  • Wiwut Tanthapanichakoon,
  • Kreangkrai Maneeintr,
  • Jirawat Trakulmututa,
  • Assadawoot Srikhaow,
  • Siwaporn Meejoo Smith,
  • Keiko Sasaki,
  • Chitiphon Chuaicham

摘要

This work aimed to synthesize and characterize activated carbon derived from durian wastes, a substantial agricultural by-product in Thailand, with a focus on its efficacy in aqueous phenol removal. The activated carbon derived from durian seed (AC-DSE) and activated carbon derived from durian shell (AC-DSH) was prepared using phosphoric acid (H3PO4) as the activating agent, subsequently, carbonization occurred under a nitrogen atmosphere. The synthesized samples underwent comprehensive characterization. In phenol removal, the adsorption performance of the AC-DSE was notable, achieving a phenol removal efficiency of around 90% within 180 min, employing 0.1 g of AC-DSE for 20 ml of aqueous phenol solution (initial concentration: 10 mg/l). Compared with AC-DSH and a commercial activated carbon, the obtained AC-DSE exhibited the highest phenol removal due to high specific surface area of 2,054 m2/g, with an average pore size of 3.85 nm, micro, and mesopore volumes of 1.43 and 2.27 cm3/g, respectively. Moreover, the adsorption behaviour followed to the Langmuir model, while the experimental data closely aligned with the pseudo-second-order kinetic model. These findings emphasize the potential of activated carbon derived from durian waste as a sustainable adsorbent for organic removal from wastewater.