Modification of β-cyclodextrin-carbon nanotube-thermally reduced graphite oxide by using ambient plasma for electrochemical sensing of ascorbic acid

被引：25
作者：
Aryal, Krishna Prasad [1 ]
Jeong, Hae Kyung [1 ,2 ]
机构：
[1] Daegu Univ, Inst Basic Sci, Dept Phys, Gyongsan 712714, South Korea
[2] Daegu Univ, Inst Ind & Tech, Dept Mat Energy Sci & Engn, Gyongsan 712714, South Korea
来源：
CHEMICAL PHYSICS LETTERS | 2019年 / 730卷
基金：
新加坡国家研究基金会;
关键词：
Ambient plasma; Reduced graphite oxide; Carbon nanotube; beta-Cyclodextrin; Ascorbic acid; SURFACE MODIFICATION; PYROLYTIC-GRAPHITE; GRAPHENE OXIDE; DOPAMINE; COMPOSITES; ELECTRODE;
D O I：
10.1016/j.cplett.2019.06.032
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Carbon nanotube-thermally reduced graphite oxide (CNT-TRGO) was modified by ambient plasma. beta-cyclodextrin (beta CD) was then functionalized over the composite surface and used for electrochemical detection of ascorbic acid. The ambient plasma increased the electrochemical surface area, adsorption capacity, and electric conductivity, so that more functionalization of beta CD was found on the surface of CNT-TRGO. Final sensitivity of 2.5 mu AmM-1 was obtained in the range from 0.05 to 30 mM of ascorbic acid. The ambient plasma method for the modification of the surface showed very efficient, easy, and economic.
引用
收藏
页码：306 / 311
页数：6
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