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A soivothermal process was developed for the preparation of cauliflower-like Bi_2S_3 from N,N-dimethylformamide(DMF) solution of bismuth nitrate[Bi(NO_3)_3·5H_2O]and thioacetamide(TAA)with 2-undecyl-1-dithioureido-ethyl-imidazoline(SUDEI) as the morphology-controlling agent.The obtained Bi_2S_3 products were characterized by transmission electron microscopy(TEM), scanning electron microscopy(SEM),and X-ray diffraction(XRD),etc.The sensing properties of Bi_2S_3 with different morphologies were evaluated by the electrochemical analysis of dopamine(DA)and ascorbic acid(AA)coexisting solution. The results showed that cauliflower-like Bi_2S_3 showed a better resolving ability than rod-like Bi_2S_3 for the simultaneous determination of DA and AA.
A soivothermal process was developed for the preparation of cauliflower-like Bi_2S_3 from N, N-dimethylformamide (DMF) solution of bismuth nitrate [Bi (NO_3) _3 · 5H_2O] and thioacetamide (TAA) with 2-undecyl-1-dithioureido-ethyl -imidazoline (SUDEI) as the morphology-controlling agent.The obtained Bi_2S_3 products were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and X-ray diffraction different morphologies were evaluated by the electrochemical analysis of dopamine (DA) and ascorbic acid (AA) coexisting solution. The results showed that Cauliflower-like Bi_2S_3 showed a better resolving ability than rod-like Bi_2S_3 for the simultaneous determination of DA and AA.