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@ARTICLE{Zhang:11856,
author = {Zhang, J. and Séquaris, J.-M. and Narres, H.-D. and
Vereecken, H. and Klumpp, E.},
title = {{E}ffect of organic carbon and mineral surface on the
pyrene sorption and distribution in {Y}angtze {R}iver
sediments},
journal = {Chemosphere},
volume = {80},
issn = {0045-6535},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {PreJuSER-11856},
pages = {1321 - 1327},
year = {2010},
note = {Record converted from VDB: 12.11.2012},
abstract = {The effect of organic carbon (OC) and mineral surface on
the sorption of polycyclic aromatic hydrocarbon (PAH) pyrene
molecule to four Yangtze River sediments was investigated by
sorption batch techniques using fluorescence spectroscopy.
Pyrene sorption to the mineral fraction was estimated with
model sorbent illite, the main clay mineral in Yangtze
sediment. The Freundlich model fitted sorption to illite and
to sediments was normalized to the specific surface area
(SSA). Comparison of the SSA-normalized sorption capacities
of illite and sediments suggests a negligible contribution
of the pyrene sorption to the mineral fraction. In addition,
composite models, such as the linear Langmuir model (LLM)
and the linear Polanyi-Dubinin-Manes model (LPDMM) were
applied for fitting the sorption of pyrene to the pristine
sediments. The application of composite models allows
assessing the partition of pyrene into amorphous organic
carbon (AOC) and the adsorption in the porous structure of
black carbon (BC). The modelling results indicate that the
pyrene adsorption to the minor BC components $(<0.2\%)$ is
more effective than the partition to AOC $(0.5-1.3\%).$
Besides the pristine sediments, sediments preheated at 375
degrees C were also studied, in which the AOC fraction was
removed during the preheating treatment. The modelling
results with LPDMM and Polanyi-Dubinin-Manes model (PDMM)
indicate a similar adsorption capacity of BC in pristine and
preheated sediments, respectively. The low AOC
concentrations in sediments do not diminish the BC micropore
filling with pyrene. Simulation of pyrene distribution in
the investigated Yangtze River sediments support the
importance of the BC fraction in the PAH immobilization
under environmental conditions.},
keywords = {Absorption / Adsorption / Carbon: chemistry / China /
Environmental Monitoring / Geologic Sediments: chemistry /
Minerals: chemistry / Models, Chemical / Pyrenes: analysis /
Pyrenes: chemistry / Rivers: chemistry / Water Pollutants,
Chemical: analysis / Water Pollutants, Chemical: chemistry /
Minerals (NLM Chemicals) / Pyrenes (NLM Chemicals) / Water
Pollutants, Chemical (NLM Chemicals) / pyrene (NLM
Chemicals) / Carbon (NLM Chemicals) / J (WoSType)},
cin = {ICG-4 / JARA-HPC},
ddc = {333.7},
cid = {I:(DE-Juel1)VDB793 / $I:(DE-82)080012_20140620$},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Environmental Sciences},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:20619874},
UT = {WOS:000282137700012},
doi = {10.1016/j.chemosphere.2010.06.046},
url = {https://juser.fz-juelich.de/record/11856},
}