Abstract
Photocatalytic splitting of H2S into H2 is beneficial for environmental remediation and clean energy production. However, the conventional photocatalyst in powder form is difficult to recover. In this work, Bi2S3 nanorod films are fabricated via the conversion of Bi films by annealing and hydrothermal treatment. The hydrothermal reaction time has a significant influence on the performance of photocatalytic splitting H2S to H2 over these samples. The optimized hydrothermal treatment time is 24h. Photocurrent and electrochemical impedance spectroscopy confirm that the Bi2S3 nanorod film obtained under this condition has an effective separation of electron-hole pairs, leading to enhanced photocatalytic activity.
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