تهیه حسگر گازی مقاومت شیمیایی بر پایه گرافن اکسید عامل‌دار شده برای آشکارسازی 2،4-دی‌نیتروتولوئن

نوع مقاله: مقاله پژوهشی

نویسندگان

دانشگاه جامع امام حسین(ع)، دانشکده علوم پایه

10.22036/ijc.2019.151004.1036

چکیده

تحقیق و پژوهش در زمینه آشکارسازی مواد منفجره با توجه به افزایش استفاده از این مواد در حملات تروریستی رو به گسترش می باشد. در این مقاله حسگر مقاومت شیمیایی الکترود شانه‌ای مبتنی بر گرافن اکساید عامل‌دار شده توسط 5،5،4،4،3،3،2،2- اکتافلورو6،1-هگزان دی ال ارائه شده است و پاسخ آن‌ به 2،4- دی نیترو تولوئن (DNT) مورد بررسی قرار گرفته است. پاسخ حسگر با افزودن لایه‌ ثانوی پوشش دهنده بر روی حسگر گرافن اکساید عامل‌دار شده افزایش حساسیت و گزینش‌پذیری قابل توجهی را از خود نشان داده است. گستره پاسخ خطی برای DNT ، ppb 918- 8/91 با حد تشخیص ppb 76به دست آمده است. انحراف استاندار نسبی برای 3 بار تکرارپذیری پاسخ حسگر نیز مقدار 09/6 درصد محاسبه شده است.1 1 1 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

چکیده تصویری

تهیه حسگر گازی مقاومت شیمیایی بر پایه گرافن اکسید عامل‌دار شده برای آشکارسازی   2،4-دی‌نیتروتولوئن

کلیدواژه‌ها


عنوان مقاله [English]

Graphene oxide microsensors for 2,4-Dinitrotoluene detection

نویسندگان [English]

  • mohammad koochoki
  • amin geravand
  • saeed monzavi
imam hossein university
چکیده [English]

Abstract
Research in the field of explosives detection due to the increased use of these materials in terrorist attacks is growing. In this paper, a chemiresistor gas sensor based on Graphene oxide functionalized with 2,2,3,3,4,4,5,5-Octafluoro-1,6-hexanediol is provided and its response to 2,4-Dinitrotoluene is studied. response of the sensor by adding the second coating layer on the functionalized graphene oxide show considerable increase the sensitivity and selectivity of the sensor .Linear response range for DNT, 91.8-918 ppb with a detection limit 76 ppb is obtained. Also the RSD to evaluate the repeatability of sensor for 3 replicate measurements was 6.09%.
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 11 1 1 1 1 1 11 1 1 1 1 1 11 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1

کلیدواژه‌ها [English]

  • graphene oxide
  • microsensors for 2
  • 4-Dinitrotoluene detection
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