Catalytic efficiency of activated carbon functionalized with phosphorus-containing groups in 2-propanol dehydration

Liudmyla Grishchenko, Natalia Novychenko, Igor Matushko, Alexander Zaderko, Galyna Tsapyuk, Oleksandr Mischanchuk, Vitaliy Diyuk, Vladyslav Lisnyak


The functionalization of activated carbon (AC) by P-containing groups was conducted, and their thermal desorption was studied. Depending on the used method, the functionalized AC contains 0.5–1.45 mmol/g of acidic groups acting in catalytic 2-propanol dehydration. All catalysts showed 100% conversion of 2-propanol to propylene. The catalytic activity does not change with time under isothermal conditions and during their repeated use in catalysis, for 3 cycles of heating-cooling. In fact, the yield of propylene remains stable; it does not decrease with each cycle. Preliminary oxidation with nitric acid causes a small increase in the catalytic activity.


activated carbon; surface modification; acidic groups; heterogeneous catalysts; isopropyl alcohol dehydration

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