بررسی اثر کاتالیزوری نانوهیبرید پالادیم مغناطیسی بر پایه نیترید کربن گرافیتی در تخریب ماده رنگزای متیل اورانژ تحت تابش نور مرئی

نوع مقاله : مقاله پژوهشی

نویسنده

بخش شیمی، دانشکده علوم پایه، دانشگاه کوثر بجنورد، بجنورد، ایران، صندوق پستی: 9415615458.

چکیده

نانوهیبرید مغناطیسی کمپلکس ایمین - پالادیم بر پایه نیترید کربن گرافیتی (Pd-Im@Fe3O4@g-C3N4)، (1 ،10-فنانترولین-2،9-دی کاربالدئیدIm=)، به‌عنوان یک کاتالیزور نوری بسیار فعال و پایدار با رویکردی آسان ساخته و برای تخریب ماده رنگزای‌ متیل اورانژ تحت تابش نور مرئی به‌کار برده شد. کاتالیزور مذکور با روش‌های XRD, FT-IR ، TEM, SEM,، DRS و VSM شناسایی شد. طبق نتایج آزمون TEM، اندازه متوسط نانوذرات پالادیم بروی اکسید آهن، 90 تا 100 نانومتر می‌‌باشد. نتایج حاکی از آن است که فعالیت کاتالیزوری نوری نانوهیبرید مذکور در تخریب نوری متیل اورانژ در مقایسه با g-C3N4 و کمپلکس مغناطیسی پالادیم بیشتر می‌باشد. تأثیر پارامترهای مختلف مانند زمان، وابستگی تخریب به حضور کاتالیزور و تابش نور، pH و همچنین قابلیت استفاده مجدد کاتالیزور نوری بر بازده تخریب بررسی شد. نتایج نشان داد که بازده تخریب ماده رنگزای متیل اورانژ با غلظت ppm 20 وM  0.006 H2O2 در 4pH= و دمای °C 40 تحت تابش نور مرئی بعد از گذشت 20 دقیقه توسط کاتالیزور مذکور، 91 درصد می‌باشد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Investigating the Catalytic Effect of Magnetic Palladium Nanohybrid Based on Graphite Carbon Nitride in the Degradation of Methyl Orange Dye Under Visible Light Irradiation

نویسنده [English]

  • Razieh Nejat
Chemistry Department, Faculty of Science, Kosar University of Bojnord, P.O. Box: 9415615458, Bojnord, Iran.
چکیده [English]

Magnetic nanohybrid imine-palladium complex based on graphitic carbon nitride (Pd-Im@Fe3O4@g-C3N4), (Im=1,10-phenanthroline-2,9-dicarbaldehyde), as a highly active and stable photocatalyst is fabricated via a facile approach, and is developed for the degradation of Methyl orange under visible light. The catalyst was identified using XRD, FT-IR, TEM, SEM, DRS, and VSM techniques. According to the results of TEM analysis, the average size of palladium/iron oxide nanoparticles is 90-100 nm. The results indicate that the photocatalytic activity of the mentioned nanohybrid in the optical degradation of methyl orange is higher compared to g-C3N4 and palladium magnetic complex. The influence of reaction parameters such as time, the dependence of degradation on the presence of the catalyst and light irradiation, pH, and the photocatalyst's reusability on the degradation yield have been investigated. The results showed that the degradation efficiency of methyl orange with a concentration of 20 ppm and 0.006 M H2O2 at pH = 4 and a temperature of 40 °C under visible light irradiation after 20 minutes by the catalyst is 91 %.

کلیدواژه‌ها [English]

  • Methyl orange Photocatalyst Palladium g
  • C3N4 Magnetism

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