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

Abstract

Removal of odorous carbon disulfide (CS 2 ) 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 O 2 /CS 2 ratio (R) ϭ 0.6, elemental sulfur with an S 8 structure was the dominant component, while a carbonrich compound with consisting mainly of carbon polymers C n , sulfur polymers S n , and the -CSC-moiety was found at R ϭ 0. XPS analysis indicated that CS 2.84 film and CS 1.77 film were produced at R ϭ 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 CS 2 plasma-induced decomposition and polymerization processes in a low-pressure environment.

Using radio astronomical receivers for molecular spectroscopic characterization in astrochemical laboratory simulations: A proof of concept

“…Their results corroborated the primary dissociation steps of OCS reported by previous authors, and showed that the main dissociation pathway for CS 2 should be e − + CS 2 → CS + S + e − . More recent studies on CS 2 plasmas have been devoted to their application as sources of functional polymers (Ochiai & Endo 2005, and references therein) or as a method for CS 2 waste removal (Holub et al 2014; Yan et al 2013; Tsai et al 2007).…”

Understanding the Reactivity of Combination Reactions of Intramolecular Geminal Group 13 Element/Phosphorus and Gallium/Group 15 Element Frustrated Lewis Pairs with CS2

“…The rest is from combustion of fossil fuels, volcanic eruptions, and plant or protein corruption (8–21%). , CS 2 can serve as a solvent for bromine, iodine, fats, phosphorus, sulfur, selenium, resins, rubber, and asphalt. In addition, CS 2 is a known chemical industry raw material and highly volatile compound, and it is listed as a dangerous air pollutant by many countries. − In general, CS 2 is regarded as a poison that is hard to ignore for industrial catalysis because its presence can cause catalyst deactivation and corrosion of reaction equipment. − Moreover, CS 2 not only causes economic problems but also affects the environment because its pollution can cause major damage to the natural world. , In fact, the CS 2 molecule is recognized to be a main pollutant in the atmosphere. , For example, CS 2 can be oxidized by atmospheric oxygen through photochemical reactions to form sulfur oxide, which has been proven to be the main source of acid rain. − Consequently, many methods have been developed to remove CS 2 from tail gas and other processed gas streams. − …”