Facile preparation of antimony sulfide and 3,4,9,10-perylenetetracarboxylic diimide composite nanomaterials modified fluorine-doped tin oxide glass for efficient detection of hydrazine

A novel heterojunctions of 3,4,9,10-perylenetetracarboxylic diimide (PTCDI) nanosheets coupled with antimony sulfide (Sb2S3) nanorods were synthesized by two-step electrodeposition. The addition of the inorganic nanomaterial Sb2S3 significantly improved the stability of the PTCDI organic nanomaterial, which already had excellent sensing properties for hydrazine. At the same time, the two materials formed a heterojunction to improve the efficiency of electron transfer when the composite electrode was used to detect hydrazine. The sensor’s response current generated by the electrochemical reaction displayed that the PTCDI/Sb2S3 composite nanomaterials hold high electrocatalytic performance. The results exhibited that the obtained sensor had outstanding analytical performance according to the detection limit (13.95 ± 0.16 nmol·L−1), sensitivity (0.1678 μA·μmol−1·L·cm−2, 0.1103 μA·μmol−1·L·cm−2).