This study investigates the potential of cobalt ferrite-doped mango seed shell (CoFe₂O₄-MSS) as an innovative and eco-friendly approach for the treatment of crude oil-polluted water. CoFe₂O₄-MSS was synthesized by impregnating carbonized mango seed shell with cobalt ferrite nanoparticles through thermal precipitation. The study systematically evaluated the adsorption capacity, kinetics, and isotherm behavior of the developed material using standard equations. Experimental results demonstrate the effectiveness of the cobalt ferrite-doped mango seed shell in adsorbing crude oil components, with high removal efficiency of 98.3% at 80 °C after 50 min. The crystallite sizes of raw mango seed shell and CoFe₂O₄-MSS are 31.8 nm and 21.3 nm, respectively. The calculated adsorption capacity stood at 55.50 mg/g, the Brunauer–Emmett–Teller surface area of CoFe₂O₄-MSS was 1007.4m²/g with a porosity distribution of 1.685 \(\eta\) while the volume and pore diameter are 3.104m³/g and 7.212 nm, respectively. FTIR analysis revealed the presence of aliphatic, aromatic, and silicon compounds. The isotherm data matched well with Langmuir isotherm model while kinetic data fitted well with Bhattacharya–Venkobachar model. The unique properties of cobalt ferrite, a magnetic and iron-based material, combined with the abundant and biodegradable nature of mango seed shells, make this composite an attractive adsorbent for removing crude oil contaminants. This research contributes to the development of sustainable and cost-effective solutions for addressing environmental challenges posed by crude oil pollution. Also, this research has contributed immensely to the sustainable development goals of the united nation (UN-SDG) regarding environmental protection.

本研究探讨了钴铁氧体掺杂芒果籽壳 (CoFe ₂ O ₄ -MSS) 作为一种创新且环保的方法来处理原油污染水的潜力。以钴铁氧体纳米粒子浸渍炭化的芒果籽壳，通过热沉淀法合成了CoFe ₂ O ₄ -MSS。该研究使用标准方程系统地评估了所开发材料的吸附能力、动力学和等温线行为。实验结果表明，钴铁氧体掺杂的芒果籽壳能够有效吸附原油成分，在80℃下50分钟后去除效率高达98.3%。生芒果籽壳和 CoFe ₂ O ₄ -MSS 的微晶尺寸分别为 31.8 nm 和 21.3 nm。计算得出的吸附容量为55.50 mg/g，CoFe ₂ O ₄ -MSS 的 Brunauer-Emmett-Teller 表面积为 1007.4m ² /g孔隙率分布为1.685 \(\eta\)，体积和孔径分别为3.104m ³ /g和7.212 nm。 FTIR 分析表明存在脂肪族、芳香族和硅化合物。等温线数据与 Langmuir 等温线模型吻合良好，而动力学数据与 Bhattacharya-Venkobachar 模型吻合良好。钴铁氧体（一种磁性铁基材料）的独特性能与芒果籽壳丰富且可生物降解的性质相结合，使这种复合材料成为去除原油污染物的有吸引力的吸附剂。这项研究有助于开发可持续且具有成本效益的解决方案，以应对原油污染带来的环境挑战。 此外，这项研究对联合国（UN-SDG）有关环境保护的可持续发展目标做出了巨大贡献。