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سنتز و ارزیابی عملکرد نانو میله مولیبدن تری اکسید و نانوکامپوزیت مولیبدن تری اکسید-گرافن اکسید برای جذب آفتکش آبامکتین از محیطزیست | ||
| دانش گیاهپزشکی ایران | ||
| دوره 55، شماره 2، اسفند 1403، صفحه 311-330 اصل مقاله (1.73 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijpps.2025.390473.1007073 | ||
| نویسندگان | ||
| راضیه رضوی1؛ مسلم بسیج* 2؛ زینب نظری1؛ ساجده محمدی1؛ زهرا خادمی1؛ سلمان امیری3 | ||
| 1گروه شیمی ، دانشکده علوم ، دانشگاه جیرفت، جیرفت، ایران | ||
| 2گروه گیاهپزشکی، دانشکده کشاورزی، دانشگاه جیرفت، جیرفت، ایران | ||
| 3گروه گیاهپزشکی ، دانشکده کشاورزی ، دانشگاه جیرفت، جیرفت، ایران | ||
| چکیده | ||
| آفت کشهای کشاورزی بهعنوان آلایندههای محیط زیستی، تهدید جدی برای سلامت انسان و اکوسیستمهای طبیعی محسوب میشوند. در این پژوهش، نانومیلههای سوزنی شکل مولیبدن تریاکسید (MoO₃) به روش هیدروترمال و نانوکامپوزیت تری اکسید مولیبدن -گرافن اکسید (MoO₃@GO) بهصورت هتروژن سنتز شدند و کارایی آنها در حذف آفت کش آبامکتین مورد بررسی قرار گرفت. مشخصهیابی نانوذرات سنتز شده با استفاده از پراش پرتو ایکس (XRD)، میکروسکوپ الکترونی روبشی (SEM) و طیفسنجی مادون قرمز (FT-IR) انجام شد. نتایج نشان داد که میانگین اندازه نانومیلههای MoO₃ حدود 110 نانومتر است. مطالعات جذب نشان داد که هر دو جاذب از بازده جذب بالایی برخوردارند، با این حال نانوکامپوزیت MoO₃@GO با بازدهی 98% نسبت به نانومیلههای خالص MoO₃ (95%) عملکرد بهتری داشت. پارامترهای مؤثر در فرآیند جذب شامل غلظت اولیه آفتکش (5 پی پی ام) ، مقدار جاذب (3 میلیگرم)، زمان تماس (15 دقیقه) و pH اسیدی بهینهسازی شدند. مدل ایزوترم جذب از نوع لانگمویر بود که نشاندهنده جذب تک لایهای است. این مطالعه نشان داد که نانوکامپوزیت MoO₃@GO میتواند بهعنوان جاذب مؤثری برای حذف آلایندههای آلی از محیطهای آبی مورد استفاده قرار گیرد. | ||
| کلیدواژهها | ||
| جذب؛ آبامکتین؛ نانو میله؛ مولیبدن تری اکسید؛ ایزوترم جذب | ||
| عنوان مقاله [English] | ||
| Synthesis and evaluation of efficiency of molybdenum trioxide and MoO3@GO nanorods for adsorption of abamectin pesticide from the environment | ||
| نویسندگان [English] | ||
| Razieh Razavi1؛ moslem basij2؛ Zeinab nazari1؛ sajedeh mohammadi1؛ zahra khademi1؛ salman amiri3 | ||
| 1Department of Chemistry, Faculty of Science, University of Jiroft, Jiroft, Iran | ||
| 2Department of Plant Protection, Faculty of Agricultural Science, University of Jiroft, Jiroft, Iran | ||
| 3Department of Plant Protection, Faculty of Agricultural Science, University of Jiroft, Jiroft, Iran | ||
| چکیده [English] | ||
| Agricultural pesticides are significant environmental pollutants that cause serious harm to humans and the ecosystem. Among these pesticides is abamectin, which is used as an acaricide. In this study, needle-like molybdenum trioxide (MoO₃) nanorods were synthesized via the hydrothermal method, and a molybdenum trioxide@graphene oxide (MoO₃@GO) nanocomposite was heterogeneously prepared for the removal of the pesticide abamectin. The synthesized nanoparticles were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and infrared spectroscopy (IR). The average size of the MoO₃ nanorods was found to be 110 nm. The adsorption performance of these two materials for abamectin was compared. The results indicated that both adsorbents exhibit high adsorption capacity, with the MoO₃-graphene oxide nanocomposite showing superior adsorption. Key variables such as pesticide concentration, adsorbent dosage, contact time, and pH were investigated. The results demonstrated that the adsorption capacity of MoO₃ nanorods was 95%, while that of the synthesized nanocomposite reached 98%. The adsorption process followed the Langmuir isotherm model. The optimal adsorption conditions were determined as follows: adsorbent dosage of 3 mg, pesticide concentration of 5 ppm, contact time of 15 minutes, and acidic pH. | ||
| کلیدواژهها [English] | ||
| Adsorption, Abamectin, Nanorod, Molybdenum Trioxide, Adsorption Isotherm | ||
| مراجع | ||
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