سنتز نانو کامپوزیت SBA-15/ZIF-8 جهت حذف رنگ راکتیو قرمز 198 از فاضلاب نساجی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 قائمشهر ، دانشگاه آزاد اسلامی واحد قائم شهر، گروه شیمی، صندوق پستی 163

2 گروه مهندسی نساجی، دانشگاه آزاد اسلامی واحد قائمشهر، قائمشهر، ایران

چکیده

یکی از ترکیبات آلاینده آب مواد رنگزا می باشند که دارای کاربرد وسیعی در صنعت نساجی هستند. مهمترین ترکیب رنگزای مورد مصرف در صنعت نساجی رنگزای راکتیو می باشد. در این پژوهش ترکیب نانوکامپوزیت SBA-15/ZIF-8سنتز و از آن به عنوان یک جاذب در حذف رنگزای راکتیو قرمز 198 از محیط آبی استفاده شد. به منظور تایید ساختار جاذب سنتز شده از تکنینک هایی مانند تخلخل سنج BET و طیف سنج مادون قرمز تبدیل فوریه (FTIR) استفاده شد. از دستگاه اسپکتروفتومتر جذبی برای تعیین مقدار رنگزا در محلول استفاده شد. عوامل تاثیرگذار در حذف رنگزا مانند، pH، مقدار جاذب، زمان تماس، دما و غلظت رنگزا مورد بررسی قرار گرفت که شرایط بهینه عبارت است از 2=pH، زمان تماس 90 دقیقه ، میزان جاذب 03/0 گرم و دمای فرایند 25 درجه سانتی گراد تعیین گردید. . در بررسی های بعمل آمده مشخص گردید که با افزایش دما میزان جذب کاهش یافته که این امر نشان دهنده گرمازا بودن فرایند جذب رنگزای راکتیو قرمز 198 بر روی جاذب سنتز شده SBA-15/ZIF-8می باشد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Synthesis of SBA-15/ZIF-8 nanocomposite for removal of reactive red 198 from textile waste water

نویسندگان [English]

  • Mehdi Sadeghi 1
  • Habib-Allah Tayebi 2
  • Majid Moradian 1
  • Ali Mirabi 1
1 Department of Chemistry, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
2 Department of textile engineering, Qaemshahr branch, Islamic Azad University, Qaemshahr, Iran
چکیده [English]

One of the water pollutants is dyes that are widely used in the textile industry. The most important dye compound used in the textile industry is reactive dye. In this study, SBA-15/ZIF-8 nanocomposite was synthesized and used for the removal of reactive red 198 from aqueous solution. For approving the synthesized adsorbent structure, BET and transform infra-red spectroscopy (FT-IR) techniques were used. UV−Vis spectrophotometer was used to determine the amount of residual dye in solution. The effect of different experimental parameters such as pH, adsorbent dosage, contact time, initial dye concentration, and temperature on the adsorption were studied. The optimum condition were pH = 2, adsorbent dosage of 0.03 g, and contact time of 90 min at 25 °C. In the studies performed, it was found that with increasing temperature, the amount of adsorption decreased, which represents that the adsorption process of 198 reactive red dye on the synthesized adsorbent SBA-15 / ZIF-8 is exothermic.

کلیدواژه‌ها [English]

  • Dye adsorption
  • Reactive Red 198
  • Nanocomposite
  • SBA-15/ZIF-8
  • Adsorption Studies
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