Abstract:
The present study was concentrated to develop a rapid, electrochemical, selective,
cheap and easy to use carbon cloth (CC) based assay for the quantitative and qualitative
detection. CC was fabricated with a ZnO nanoparticles first and then with diazonium
salt. This modified CC was then applied for the detection of acetone. FTIR, AFM and
SEM was used to explore the chemical and physical characteristics of CC of before and
after each modification. These results manifested that ZnO-nanoflakes and diazonium
salt functionalization could increase the roughness of the CC surface that was
advantageous to promote the interaction between CC and analyte to be detected. Linear
sweep voltammetry and cyclic voltamogram were used for electrochemical analysis.
The proposed electrochemical sensor was analyzed for various concentration of
acetone. To validate the concept, the proposed sensor was assessed for higher
concentrations of acetone in different ways. Among them, ZnO nanoflakes/ CC which
was modified with diazonium salt showed better response (in acetone solution alone)
than ZnO nanoflakes /modified CC (in the solution of diazonium salt and variable
concentrations of acetone)
