Products Cited in Publications Worldwide Photocatalytic Conversion of D5 Siloxane in Water: An Exploratory Research and Mechanism of the Process

Photocatalytic Conversion of D5 Siloxane in Water: An Exploratory Research and Mechanism of the Process

Felczak, Paula; Miądlicki, Piotr; Chacón, Gustavo; Przepiórski, Jacek

DOI:

Abstract

Siloxanes, challenging contaminants in biogas, can severely impact the combustion engine performance, necessitating their removal. Typically the siloxanes are removed from biogas through adsorption on activated carbon. However, the potential for eliminating siloxanes from wastewater prior to methane fermentation remains underexplored. Therefore, in this work, we explore the possibility of photocatalytic conversion of (D5) in aqueous phase using UV radiation and titanium dioxide (TiO2) as . We examined the effects of several factors on the process, including the effect of UV light and the presence of the photocatalyst on the reaction pathway. Our findings indicate that the primary product of D5 conversion in the aqueous phase is amorphous silica. Given the non-volatility of this final product, we discuss our results in the context of minimizing undesirable desorption of siloxane from the aqueous phase into the gas phase. Through a detailed analysis, we identify key intermediate species and propose a reaction mechanism that elucidates the transformation of D5 under photocatalytic conditions.

Keywords

Siloxanes ; (D5) ; Photocatalytic conversion ; Titanium dioxide ; Reaction mechanism

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Decamethylcyclopentasiloxane

A714927541-02-699%

Decamethylcyclopentasiloxane

21.0/100g

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