Highly sensitive amperometric hydrazine sensor based on novel Sb2S3-CuTβPc composite modified platinum disk electrode

Article abstract of DOI:10.1246/cl.180524

A novel composite material composed of inorganic semiconductor antimony sulphide (Sb₂S₃) and organic semiconductor copper tetra-β-(4-carboxyphenoxy) phthalocyanine (CuTβPc) was prepared by a simple solution deposition process. The crystallite structure and properties of Sb₂S₃-CuTβPc composites were analyzed by XRD, SEM, FTIR and UVvis. The electrochemical behavior of the sensor was investigated using cyclic voltammetry (CV) and amperometry. For the development of a potential chemical sensor, Sb₂S₃-CuTβPc composites were deposited on flat platinum disk electrodes to give sensors that responded quickly and selectively to hydrazine in phosphate buffer phase. The hydrazine sensor showed a linear detection range from 10 nM to 0.5 ˉM and detection limit of 0.9 nM at a signal-to-noise ratio of 3. Thus this novel composite may be potentially applied in the field of catalysis and environment.