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جامعة الشهيد حمه لخضر — الواديبوابة البحث العلمي
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مقال

Valorizing date palm spikelets into activated carbon-derived composite for methyl orange adsorption: advancing circular bioeconomy in wastewater treatment—a comprehensive study on its equilibrium, kinetics, thermodynamics, and mechanisms

Mazen S.F. Al-Hazeef، Amel Aidi، Lynda Hecini، Ahmed Ibrahim Osman✉، Gamil Gamal Hasan، Mohammed Althamthami، Sabrina Ziad، Tarik Otmane، David W. Rooney

كلية التكنولوجياقسم هندسة الطرائق

الملخّص

Abstract Leveraging date palm spikelets (DPS) as a precursor, this study developed a DPS-derived composite (ZnO@DPS-AC) for water treatment, focusing on methyl orange (MO) removal. The composite was synthesized through ZnCl2 activation and pyrolysis at 600 °C. Comprehensive characterization was conducted using TGA, FTIR, XRD, SEM/EDS, and pHPZC. Characterization revealed a highly carbonaceous material (> 74% carbon) with significant porosity and surface functional groups. ZnO@DPS-AC demonstrated rapid MO removal, achieving over 45% reduction within 10 min and up to 99% efficiency under optimized conditions. The Langmuir model-calculated maximum adsorption capacity reached 226.81 mg/g at 20 °C. Adsorption mechanisms involved hydrogen bonding, π-π interactions, and pore filling. The composite showed effectiveness in treating real wastewater and removing other pollutants. This study highlights the potential of agricultural waste valorization in developing efficient, sustainable adsorbents for water remediation, contributing to circular bioeconomy principles.

التفاصيل

اللغة الأصليةEnglish
المجلّةEnvironmental Science and Pollution Research
المجلّد31
العدد38
الصفحات50493-50512
الناشرSpringer Science+Business Media
ISSN0944-1344 · 1614-7499
DOI10.1007/s11356-024-34581-3
حالة النشرمنشور — 3 أوت 2024

الكلمات المفتاحية

أهداف التنمية المستدامة

  • 6 — المياه النظيفة والنظافة الصحية
  • 12 — الاستهلاك والإنتاج المسؤولان

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