تولید سبز نانوذرات دی‌اکسید قلع و کاربرد آن به‌عنوان فتوکاتالیزور در تخریب رنگ اریو کروم بلک تی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار گروه مهندسی شیمی، دانشگاه صنعتی بیرجند

2 کارشناسی مهندسی شیمی، دانشگاه صنعتی بیرجند

چکیده

نانوذرات دی‌اکسید قلع بهروش سبز با استفاده از افشرۀ میوۀ زیتون تلخ بهطور موفقیت‌آمیز تولید و بهکمک تجزیه‌های XRD و SEM مشخصه­یابی شد. نانوذرات تولیدشده برای تخریب رنگ اریو کروم بلکتی1 (EBT) محلول در آب در زیر لامپ UV استفاده شد. هم‌چنین با استفاده از طراحی آزمایش­ها بهروش رویۀ پاسخ، اثر مؤلفههای تأثیرگذار نظیر pH (2 تا 10) اولیۀ محلول رنگی، زمان واکنش (5/0 تا 4 ساعت) و مقدار کاتالیزور
(05/0 تا 15/0 گرم) بر روی بازده حذف رنگ بررسی و بهینه شد. نتایج نشان داد که نانوذرات دی‌اکسید قلع خالص با اندازۀ ذرات نانومتری به
کمک این روش سبز تولید شده است. هم‌چنین، با کمک طراحی آزمایش مشخص شد که عامل pH بیشترین تأثیر را بر بازده تخریب رنگ داشته است. با توجه به نتایج بهینهسازی، بیشترین بازده تخریب فتوکاتالیستی رنگ در حدود 94 درصد در pH برابر با 25/3، زمان 6/3 ساعت و 14/0 گرم از فتوکاتالیزور به دست آمد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Green Synthesis of Tin Dioxide Nanoparticles and its Application as Photocatalyst for Eriochrome Black T Degradation

نویسندگان [English]

  • M. Golmohammadi 1
  • M. Rokni 2
  • A. R. Mohammadi 2
1 Assistant Professor of Chemical Engineering, Birjand University of Technology
2 B. Sc. of Chemical Engineering, Birjand University of Technology
چکیده [English]

Tin oxide nanoparticles were synthesis successfully using Melia Azedarach seed extract and was characterized by XRD and SEM analyses. SnO2 NPs were employed to degrade the Eriochrome Black T (EBT) dye in an aqueous solution under UV light. Moreover, the responsible surface method (RSM) was employed to investigate the effect of three parameters, including reaction time (0.5 to 4h), catalyst loading (0.05 to 0.15g), and initial pH of the dye solution (2 to 10) on the photocatalytic degradation yield as well as to optimize of EBT degradation reaction. The result demonstrated that pure tin oxide NPs were synthesized by applying this green route. Furthermore, the RSM results showed that the pH factor has the greatest effect on dye degradation. According to the optimization results, the highest photocatalytic degradation efficiency of the dye was about 94% at pH = 3.25, time = 3.6 h, and adsorbent dosage = 0.14g.
 

کلیدواژه‌ها [English]

  • Green Synthesis
  • Melia Azedarach
  • Tin Oxide Nanoparticles
  • EBT
  • Design Experiment
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