کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7146100 1462082 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical bisphenol A sensor based on core-shell multiwalled carbon nanotubes/graphene oxide nanoribbons
ترجمه فارسی عنوان
سنسور بیس فنول الکتروشیمیایی مبتنی بر نانولولههای کربنی چندبعدی کربن / نانوروبنهای اکسید گرافین
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Bisphenol A (BPA) can disrupt endocrine system and cause cancer. It has been considered as an endocrine disruptor. It is important and necessary to develop a sensitive and rapid method for detection of BPA. In this study, graphene oxide nanoribbons (GONRs) were synthesized from the facile unzipping of multiwalled carbon nanotube (MWCNT) with the help of microwave energy. MWCNT/GONRs and chitosan (CS) were used to prepare electrochemical BPA sensor. Compared with graphene, MWCNT/GONRs have favorable adsorption capacity, electron transfer ability and electrocatalytic property, which could enhance the response signal toward BPA. CS also exhibits excellent film forming ability and improves the electrochemical behavior of MWCNT/GONRs modified electrode. The sensor displays a sensitive response to BPA within a wide concentration range (0.005-150 μg/L). The proposed electrochemical sensor shows low detection limit (1 ng/L), good reproducibility (RSD = 5.2%), selectivity, and acceptable stability. This proposed sensor was successfully employed to determine BPA in water samples with satisfactory results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 209, 31 March 2015, Pages 275-280
نویسندگان
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