TY - JOUR
T1 - Thermo-IR-spectroscopy study of the mechanochemical adsorption of 3,5-dichlorophenol by TOT swelling clay minerals
AU - Ovadyahu, D.
AU - Shoval, S.
AU - Lapides, I.
AU - Yariv, S.
PY - 1996/7/10
Y1 - 1996/7/10
N2 - The mechanochemical adsorption of 3,5-dichlorophenol by laponite, saponite, montmorillonite, beidellite, and vermiculite was studied. Mixtures containing dichlorophenol and clay in the ratio 6:10 were manually ground for 1-10 min. The ground mixtures were then analyzed by thermo-IR-spectroscopy. Depending on the surface acidity of the clay two different associations between interlayer cations, water, and dichlorophenol were identified. In these associations dichlorophenol acts either as a proton acceptor or donor (configurations I and II, respectively). In laponite, montmorillonite and saponite the surface acidity of interlayer water is high; in beidellite and vermiculite it is low. Consequently, mainly configuration I was obtained for the first group of minerals and configuration II for the second group.
AB - The mechanochemical adsorption of 3,5-dichlorophenol by laponite, saponite, montmorillonite, beidellite, and vermiculite was studied. Mixtures containing dichlorophenol and clay in the ratio 6:10 were manually ground for 1-10 min. The ground mixtures were then analyzed by thermo-IR-spectroscopy. Depending on the surface acidity of the clay two different associations between interlayer cations, water, and dichlorophenol were identified. In these associations dichlorophenol acts either as a proton acceptor or donor (configurations I and II, respectively). In laponite, montmorillonite and saponite the surface acidity of interlayer water is high; in beidellite and vermiculite it is low. Consequently, mainly configuration I was obtained for the first group of minerals and configuration II for the second group.
KW - 3,5-Dichlorophenol
KW - Clay acidity
KW - Clay minerals
KW - Mechanochemical adsorption
KW - Thermo-IR-spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=16144368661&partnerID=8YFLogxK
U2 - 10.1016/0040-6031(96)02885-7
DO - 10.1016/0040-6031(96)02885-7
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AN - SCOPUS:16144368661
SN - 0040-6031
VL - 282-283
SP - 369
EP - 383
JO - Thermochimica Acta
JF - Thermochimica Acta
IS - SPEC. ISS.
ER -