采用荧光发射光谱和荧光时间分辨光谱,对H2S分子进行了脉冲流光放电激发解离相关实验研究.将所得400~800 nm荧光谱线归属为S2、S-2、H、SH等活性粒子的发光.结果表明,H2S气体脉冲流光放电等离子体中的主要活性粒子是H2S*、S2、S-2、H、SH,且时间分辨光谱测量结果表明H和SH基荧光信号几乎同时出现,由此确定H2S气体脉冲流光等离子体放电主要激发解离通道为H2S+e*→H2S*+e→H*+SH*.
The excited dissociation process of H2S by pulsed plasma streamer discharge has been studied by using plasma fluorescence spectra and time-resolved spectra. The fluorescence spectra between 400 and 800 nm have been assigned to the transition of S2, S-2, H, SH. Experiment results indicated that the main flexibility particles are H2S*, S2, S-2, H and SH in pulsed plasma streamer discharge of H2S. The results of time-resolved spectra indicated that the fluorescence signal of H and SH appeared almost simultaneously. The main excited dissociation channel of H2S is H2S+e*→H2S*+e→H*+SH*.
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