Interaction of Humic Acids Thin Layers with Plasma at Atmospheric Pressure

Interaction of Humic Acids Thin Layers with Plasma at Atmospheric Pressure

Paper in proceedings (conference paper)

Lignitic humic acids and their complexes with cupric ions were prepared in form of thin layers on glass plates and plasma chemically treated in air. The thin layers were prepared by several various ways. They were prepared by evaporation of solvent from humic acids solution in DMSO. Other way was drying of humic gel or its cupric complex. These gels were also plasma chemically modified without drying (water was evaporated during plasma-chemical treatment). Obtained layers as well as original humic acids and their complexes were characterized by means of contact angle, acid-base properties, EPR and FT-IR spectroscopy. It was confirmed that plasma-chemical treatment influences properties and structure of humic samples which play important role in their reactivity and immobilization ability.

Lignitic humic acids and their complexes with cupric ions were prepared in form of thin layers on glass plates and plasma chemically treated in air. The thin layers were prepared by several various ways. They were prepared by evaporation of solvent from humic acids solution in DMSO. Other way was drying of humic gel or its cupric complex. These gels were also plasma chemically modified without drying (water was evaporated during plasma-chemical treatment). Obtained layers as well as original humic acids and their complexes were characterized by means of contact angle, acid-base properties, EPR and FT-IR spectroscopy. It was confirmed that plasma-chemical treatment influences properties and structure of humic samples which play important role in their reactivity and immobilization ability.

surface discharge, humic acids, plasma treatment

surface discharge, humic acids, plasma treatment

ČECHOVÁ, E.; KLUČÁKOVÁ, M.; KRČMA, F.; MAJZLÍK, P.; VRAJOVÁ, J.

26.08.2007

Kjoto

978-4-9903773-3-5

Proceedings of ISPC XVIII

27P-163

4