دانشگاه بیرجند-گروه پژوهشی خشکسالی وتغییراقلیم مجله پژوهش های خشکسالی و تغییراقلیم 3092-6076 3 2 2025 08 23 Eco-Friendly Synthesis of Magnetic NiFe2O4-Chitosan Nanocomposite for Cyanide Removal: A Sustainable Strategy for Water Resource Management Eco-Friendly Synthesis of Magnetic NiFe2O4-Chitosan Nanocomposite for Cyanide Removal: A Sustainable Strategy for Water Resource Management 19 36 3416 10.22077/jdcr.2025.8877.1113 FA فاطمه دیمه گروه شیمی، دانشکده علوم، دانشگاه بیرجند، بیرجند، ایران. احمد حاجی زاده گروه شیمی، دانشکده علوم، دانشگاه بیرجند، بیرجند، ایران. علی زراعتکارمقدم گروه شیمی، دانشکده علوم، دانشگاه بیرجند، بیرجند، ایران. 0000-0001-8928-3171 Journal Article 2025 02 02 The growing issue of water scarcity, exacerbated by climate change and extended droughts, underscores the critical need for effective water and wastewater treatment strategies. In this study, NiFe2O4 magnetic nanoparticles were synthesized using a green synthesis approach in peppermint (Mentha) extract medium, ensuring an eco-friendly fabrication process. The magnetic nanoparticles were coated and modified with chitosan, resulting in a new nanocomposite with improved adsorption properties. This green-synthesized magnetic chitosan nanocomposite was characterized using FTIR, XRD, VSM, SEM, and TEM, and subsequently applied to remove cyanide from contaminated groundwater and industrial wastewater. The adsorption process was optimized through an experimental design procedure, achieving a maximum removal efficiency of 97.1 ± 3.8% at a 95% confidence level, closely matching the experimental results of 95.8 ± 7.7%. The results highlight the potential of this sustainable nanocomposite for water and wastewater treatment, aiding effective water resource management in the face of climate change and growing water scarcity. The growing issue of water scarcity, exacerbated by climate change and extended<br />droughts, underscores the critical need for effective water and was tewater treatment<br />s trategies. In this s tudy, NiFe2O4 magnetic nanoparticles were synthesized using a<br />green synthesis approach in peppermint (Mentha) extract medium, ensuring an ecofriendly<br />fabrication process. The magnetic nanoparticles were coated and modified<br />with chitosan, resulting in a new nanocomposite with improved adsorption properties.<br />This green-synthesized magnetic chitosan nanocomposite was characterized using<br />FTIR, XRD, VSM, SEM, and TEM, and subsequently applied to remove cyanide<br />from contaminated groundwater and indus trial was tewater. The adsorption process<br />was optimized through an experimental design procedure, achieving a maximum<br />removal efficiency of 97.1 ± 3.8% at a 95% confidence level, closely matching<br />the experimental results of 95.8 ± 7.7%. The results highlight the potential of this<br />sus tainable nanocomposite for water and was tewater treatment, aiding effective water<br />resource management in the face of climate change and growing water scarcity. https://jdcr.birjand.ac.ir/article_3416_1fffeb2192215ea34ce0aab63650534a.pdf