Experimental Analysis of Characterization of Aerosol Sediments Formed by Plasma-Induced CS2 Destruction Processes.

Removal of odorous carbon disulfide (CS₂) can be carried out via destructing into solid aerosols and gaseous products by using a radiofrequency (rf) discharge approach. A large amount of depositions at the glow discharge zone as well as traces of plasma-polymerized films at the afterglow discharge zone was formed. The structures of the aerosol sediments were identified in this study. The composition analysis showed that at inlet O₂/CS₂ ratio (R) = 0.6, elemental sulfur with an S₈ structure was the dominant component, while a carbonrich compound with consisting mainly of carbon polymers C_n, sulfur polymers Sn, and the —CSC— moiety was found at R = 0. XPS analysis indicated that CS_2.84 film and CS_1.77 film were produced at R = 0.6 and 0, respectively, and were mainly composed of a three-dimensional irregular network with a repeating unit, rather different from the structure of the deposition substances. Structure identification of solid sediments provided helpful insight for inferring the mechanisms of the CS₂ plasma-induced decomposition and polymerization processes in a low-pressure environment. [ABSTRACT FROM AUTHOR]