NO Adsorption on Zeolites and Active Carbon toward the Application for the Treatment of Highly Concentrated NOx in Industry
Main Article Content
Abstract
The development of the economy and industry is accompanied by the emission of a large amount of exhaust gases such as NO, NO2, and N2O, which have a negative impact on the environment. In the study, the NO adsorption on zeolites and activated carbon was examined and compared. The adsorbents were also characterized using N2 physical adsorption, NO temperature-programmed desorption, Scanning Electron Microscopy, and Energy-Dispersive Spectroscopy to expose specific surface area, adsorption ability, material morphology, and elemental content of the samples. The results showed that the NO adsorption efficiency on zeolite samples was superior to that of activated carbon due to the larger surface area and higher metal cation content, leading to their higher adsorption capacity due to the chemical adsorption at these metal cation sites. The modification of the adsorbent by adding Fe2+ on Zeolite ZX5 has enhanced the active sites that are beneficial for the NO adsorption process, helping to improve the NO adsorption capacity compared to the original sample.
Keywords
Activated carbon, adsorption, NO, NOx, zeolite.
Article Details
References
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