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Fe-modified activated carbon obtained from biomass as a catalyst for α-pinene autoxidation

Kamińska Adrianna, Maciejewska Nikola, Miądlicki Piotr, Kiełbasa Karolina, Sreńscek-Nazzal Joanna, Michalkiewicz Beata

Polish Journal of Chemical Technology

2021

Vol. 23, nr 2

73--80

The presented work describes the autoxidation of alpha-pinene for the first time using a catalyst based on activated carbon from biomass with introduced Fe. The raw material for the preparation of the carbon material was waste orange peel, which was activated with a KOH solution. The following instrumental methods characterized the obtained catalyst (Fe/O_AC):N2 adsorption at 77 K, XRD, UV, SEM, TEM, X-ray microanalysis, and catalytic studies. It was shown that the Fe/O_AC catalyst was very active in the autoxidation of alpha-pinene. The main reaction products were: alpha-pinene oxide, verbenone, verbenol, and campholenic aldehyde.

Porowate materiały węglowe otrzymywane ze sfer węglowych z melasy

Kiełbasa Karolina, Maciejewska Nikola, Kamińska Adrianna, Sreńscek-Nazzal Joanna

Przemysł Chemiczny

2020

T. 99, nr 11

1636--1639

Przedstawiono syntezę porowatych materiałów węglowych ze sfer węglowych produkowanych z melasy. Otrzymane materiały scharakteryzowano metodami: adsorpcji azotu w temp. – 196°C, adsorpcji ditlenku węgla w temp. 0°C oraz skaningowej mikroskopii elektronowej.

Aq. solns. of molasses with a sucrose concn. of 1 mol/L were heated in an autoclave at 200°C and under autogenous pressure of 10 bar for 12 h. The obtained carbonizates were activated with KOH using 1:1 and 1:2 mass ratio of carbon material to KOH under N₂ atm. at 750°C. Their structural parameters and CO₂ adsorption isotherms were detd.