Effect of chemical treatment of multi-walled carbon nanotubes with various oxidizing agents on its preconcentration performance of some metals

المؤلف

al-Shaykh, Amjad H.

المصدر

Jordan Journal of Chemistry

العدد

المجلد 3، العدد 3 (30 سبتمبر/أيلول 2008)، ص ص. 293-304، 12ص.

الناشر

جامعة اليرموك عمادة البحث العلمي و الدراسات العليا

تاريخ النشر

2008-09-30

دولة النشر

الأردن

عدد الصفحات

12

التخصصات الرئيسية

الكيمياء

الموضوعات

الملخص EN

Multi-walled carbon nanotube was oxidized with various oxidizing agents (nitric acid, hydrogen peroxide and ammonium persulphate) to produce multi-walled carbon nanotubes of various surface properties.

The oxidized sorbents were used for the preconcentration of some metals (Mn2+, Pb2+, Cu2+, Cd2+, Zn2+) from environmental waters prior to their determination by flame atomic absorption spectroscopy.

The best preconcentration performance was achieved with nitric acid-oxidized carbon nanotubes (sorbent CNT-NA) at pH 9.

The effect of hydrogen peroxide treatment of carbon nanotubes was similar to nitric acid treatment in terms of increasing recovery at pH 9 and at pH5.

A preconcentration method was optimized using CNTNA.

Comparing the analytical performance of CNT-NA with non-oxidized carbon nanotubes (sorbent CNT-NO) indicated that CNT-NA gave wider limit of linearity, higher sensitivity and lower limits of quantification.

Applying the optimized method on environmental waters (tap water, reservoir water and stream water) gave spike recovery in the range 81-106 .%

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

al-Shaykh, Amjad H.. 2008. Effect of chemical treatment of multi-walled carbon nanotubes with various oxidizing agents on its preconcentration performance of some metals. Jordan Journal of Chemistry،Vol. 3, no. 3, pp.293-304.
https://search.emarefa.net/detail/BIM-275254

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

al-Shaykh, Amjad H.. Effect of chemical treatment of multi-walled carbon nanotubes with various oxidizing agents on its preconcentration performance of some metals. Jordan Journal of Chemistry Vol. 3, no. 3 (Sep. 2008), pp.293-304.
https://search.emarefa.net/detail/BIM-275254

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

al-Shaykh, Amjad H.. Effect of chemical treatment of multi-walled carbon nanotubes with various oxidizing agents on its preconcentration performance of some metals. Jordan Journal of Chemistry. 2008. Vol. 3, no. 3, pp.293-304.
https://search.emarefa.net/detail/BIM-275254

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references : p. 303-304

رقم السجل

BIM-275254