سنتز و مشخصه‌یابی نانوکامپوزیت پلیمرهای زیست‌تخریب‌پذیر برپایه کیتین، آلژینیک، نانوذرات Sr وSiO2 و اکسید گرافن به منظور حذف آلاینده رنگی

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه شیمی، واحد شهر قدس، دانشگاه آزاد اسلامی واحد شهرقدس، تهران، ایران، صندوق پستی: 18899-14579

چکیده

پلیمرهای زیست‌تخریب‌پذیر برای سلامتی موجودات زنده خطری محسوب نمی‌گردد. در این تحقیق، از جاذب نانوکامپوزیت برپایه مواد پلیمر طبیعی (زیست‌تخریب‌پذیر) استفاده شد. نانوکامپوزیت از ترکیب شدن منومر طبیعی کیتین و آلژینیک با نانوذره اکسید گرافن و نانوذره فلزی اکسید سیلیسیم و استرانسیم تحت تقطیر برگشتی و فراصوت تهیه شد. برای شناسایی و مشخصه‌یابی مواد سنتز شده، آنالیزهای FTIR، XRD،SEM ، TEM، EDX،Zeta potential  و TGA مورد بررسی قرار گرفت. رنگزای متیلن آبی به عنوان آلاینده آلی برای حذف از محیط‌های آبی با جاذب سنتز شده، مورد بررسی و مطالعه قرار گرفت. بیشینه میزان حذف رنگزای متیلن آبی با جاذب سنتزی 98.5 درصد می‌باشد. نتایج نشان داد نانوکامپوزیت سنتز شده جاذب قابل قبولی برای حذف رنگزای متیلن آبی از محیط آبی است.

کلیدواژه‌ها

عنوان مقاله [English]

Synthesis and Characterization of Nanocomposites of Biodegradable Polymers Based on Chitin, Alginic, Sr, SiO2 and Graphene Oxide Nanoparticles to Remove Some Colored Contaminants

نویسندگان [English]

  • Omid Moradi
  • Saeed Taghavi
  • SAJJAD SEDAGHAT
Department of Chemistry, Faculty of Science, Shahr-e-Qods Branch, Islamic Azad University, P.O. Box: 1479-18899, Tehran, Iran
چکیده [English]

Biodegradable polymers are not considered an environmental hazard to the health of living organisms. This research used a nanocomposite adsorbent based on natural (biodegradable) polymer materials. This nanocomposite was made from natural chitin and alginate monomers with graphene oxide, silicon oxide nanoparticles, and strontium metal nanoparticles under reflux and ultrasonic. FTIR, XRD, SEM, TEM, EDX, Zeta potential, and TGA analyses were performed to identify and characterize the synthesized materials. Methylene blue dye was used as a contaminant to remove from the aqueous media. The removal ability of the synthesized adsorbent from aqueous media was studied using methylene blue as an organic pollutant. The maximum removal percentage of methylene blue by the synthesized adsorbent was 98.5 %. The results indicated that the synthesized nanocomposite is an acceptable adsorbent for removing methylene blue dye from aqueous media.

کلیدواژه‌ها [English]

  • Dye removal
  • Biodegradable polymer
  • Nanocomposite
  • Methylene blue

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