Journal
ELECTROCHEMISTRY
Volume 83, Issue 2, Pages 84-90Publisher
ELECTROCHEMICAL SOC JAPAN
DOI: 10.5796/electrochemistry.83.84
Keywords
Graphene; Single-walled Carbon Nanotubes; Sodium Alginate; Heavy Metal Ions
Categories
Funding
- JST ALCA Program
- JSPS [22310074]
- Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan
- National Natural Science Foundation of China [21275082, 21405086, 21475071, 21203228, 81102411]
- National Key Basic Research Development Program of China (973 special preliminary study plan) [2012CB722705]
- Natural Science Foundation of Shandong [ZR2011BZ004, ZR2011BQ005, BS2014NJ023]
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Single-walled carbon nanotubes and graphene (SWNTs/G) composite aerogel have been prepared by a hydrothermal method with aid of sodium alginate (SA) decoration and used for modification of glassy carbon electrode. The modified electrode was employed for the sensitive determination of metal ions using differential pulse anodic stripping voltammetry method. The results showed that the introduction of SA not only improved the uniformity of SWNTs/G composite, but also exhibited synergistic effect for detection of several kinds of heavy metal ion. The SA decorated SWNTs were inserted into graphene interlayers, resulting in more active sites and reactive surface area. As a result, the modified electrode exhibited attractive inter-electrode reproducibility and high sensitivity for detection of Pb2+, Cd2+ and Cu2+ ions. (C) The Electrochemical Society of Japan, All rights reserved.
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