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To identify and quantify active Fe species in the selective catalytic reduction (SCR) of NO by NH 3 , a series of Fe/ZSM-5 catalysts was prepared by impregnation, reductive solid-state ion exchange, and chemical vapor deposition (CVD) under different levels of Fe loading, and was characterized by XRD, temperature-programmed desorption (TPD) of NH 3 and NO 2 , and UV–vis, Mössbauer,...
Chemical reduction of nitrate by metallic iron (Fe 0 ) was studied as a potential technology to remove nitrate from water. The effects of pH and the iron-to-nitrate ratio on both nitrate reduction rate and percent removal were investigated. Rate constants and the apparent reaction order with respect to nitrate were determined and a mass balance was obtained. Rapid nitrate reduction by iron...
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