Authors:
Marilda Vianna Chemical Engineering Department, Polytechnic School, University of São Paulo, Sao Paulo, SP Brazil

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Jo Dweck School of Chemistry, Rio de Janeiro Federal University, Rio de Janeiro, RJ Brazil

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Frank Quina Chemical Institute, University of São Paulo, Sao Paulo, SP Brazil

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Flavio Carvalho Geosciences Institute, University of São Paulo, Sao Paulo, SP Brazil

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Claudio Nascimento Chemical Engineering Department, Polytechnic School, University of São Paulo, Sao Paulo, SP Brazil

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Abstract  

Commercial bentonite (BFN) and organoclay (WS35), as well as iron oxide/clay composite (Mag_BFN) and iron/oxide organoclay composite (Mag_S35) were prepared for toluene and naphthalene sorption. Mag_BFN and Mag_S35 were obtained, respectively, by the precipitation of iron oxide hydrates onto sodium BFN and S35 clay particles. The materials were characterized by powder X-ray diffraction (XRD), X-ray Fluorescence (XRF), and TG and DTA. From XRF results and TG data on calcined mass basis, a quantitative method was developed to estimate the iron compound contents of the composites, as well as the organic matter content present in WS35 and Mag_S35.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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