β-cyclodextrin functionalized graphene nano platelets for electrochemical determination of triclosan

Abstract

β‐cyclodextrin (β‐CD) and graphene nano platelets (GNPs) have been applied to construct the β‐CD/GNP coated electrode and further for the determination of triclosan. The surface properties of β‐CD/GNP coated electrodes were characterized with scanning electron microscopy (SEM) and electrochemical techniques. On such an electrode, the oxidation peak current of triclosan is three‐times higher than that on the GNP coated electrode and seven‐times higher than that on a bare glassy carbon electrode. By applying differential pulse voltammetry, the monitoring of tricosan in the range of 2.0 µM to 100 µM was realized. The detection limit was 0.6 µM. The β‐CD and GNPs based sensor shows high sensitivity, wide dynamic response range, and long stability towards the detection of triclosan. This simple and sensitive electrochemical sensor is thus promising for the environmental monitoring of triclosan in future.

A New Molecularly Imprinted Polymer (MIP)‐based Electrochemical Sensor for Monitoring Cardiac Troponin I (cTnI) in the Serum

“…It can be used in chromatography [10], solidphase extraction [11], the catalytic reaction [12], immunoassay [13] as well as sensor technology [14][15][16][17][18][19][20][21][22][23][24]. It is now applied widely to develop robust sensors for industry, diagnostics, and environmental analysis [25].…”

Review on Electrochemical Sensing of Triclosan using Nanostructured Semiconductor Materials

“…Li et al [22] . have reported simple electrochemical sensor by using β‐Cyclodextrin (β‐CD) embedded on the graphene nanoplatelets (GNPs), a nanohybrid sensor for the detection of TCS.…”

Electrochemical Determination of Triclosan Using ZIF-11/Activated Carbon Derived from the Rice Husk Modified Electrode

“…Recently, the development of porous materials with hierarchical structure has provided various sensors for TCS detection. Different electrodes such as ordered mesoporous carbon (CMK3) functionalized electrodes [8], graphene/palladium nanoparticle hybrids [9], β-cyclodextrin functionalized graphene nano platelets [10], and carbon nanodots/chitosan [11] have been developed providing sensitive, selective, and stable electrochemical sensors for the TCS detection. All of these manifest that porous materials play an important role on designing sensitive TCS sensors.…”

“…Therefore, the value of α•n is 0.46. The value of α is considered to be 0.5 in totally irreversible electrode process [10], making the number of electron (n) transferred in the electrooxidation of TCS being 0.96 or n is confirmed as 1. Therefore, the number of protons is 2.…”