TY - JOUR
T1 - Phenanthrene sorption to Chinese coal
T2 - Importance of coal's geochemical properties
AU - Yan, Caixia
AU - Yang, Yi
AU - Liu, Min
AU - Nie, Minghua
AU - Zhou, John L.
PY - 2011/8/15
Y1 - 2011/8/15
N2 - Phenanthrene (Phen) was chosen as the probe compound for determining the sorption of PAHs to a series of different coal samples from China. Based on elemental analysis and nuclear magnetic resonance (NMR) spectra analysis, coal samples were characterized with different metamorphic evolutional degrees. The experimental sorption data were fitted well by the Freundlich model, suggesting enhanced sorption capacity and strong nonlinearity of coal samples. The combined partition and adsorption model yielded a better fit than the Freundlich isotherm, indicating that adsorption dominated the sorption at low aqueous concentrations. Correlations between coal properties and sorption capacity values indicated that C%, H/C and O/C atomic ratios were the key factors controlling the sorption behavior. Compared to total carbon, BC might play more important role in the sorption of Phen to coal samples. Moreover, there existed nonlinear relationships between combined carbon, aromatic and aliphatic carbon contents and logKFr and n values, respectively, indicating the significance of aromatic and aliphatic carbon in the coal sorption behavior.
AB - Phenanthrene (Phen) was chosen as the probe compound for determining the sorption of PAHs to a series of different coal samples from China. Based on elemental analysis and nuclear magnetic resonance (NMR) spectra analysis, coal samples were characterized with different metamorphic evolutional degrees. The experimental sorption data were fitted well by the Freundlich model, suggesting enhanced sorption capacity and strong nonlinearity of coal samples. The combined partition and adsorption model yielded a better fit than the Freundlich isotherm, indicating that adsorption dominated the sorption at low aqueous concentrations. Correlations between coal properties and sorption capacity values indicated that C%, H/C and O/C atomic ratios were the key factors controlling the sorption behavior. Compared to total carbon, BC might play more important role in the sorption of Phen to coal samples. Moreover, there existed nonlinear relationships between combined carbon, aromatic and aliphatic carbon contents and logKFr and n values, respectively, indicating the significance of aromatic and aliphatic carbon in the coal sorption behavior.
KW - Coal
KW - Geochemical properties
KW - Non-linear
KW - Phenanthrene
KW - Sorption
UR - https://www.scopus.com/pages/publications/80955178328
U2 - 10.1016/j.jhazmat.2011.04.101
DO - 10.1016/j.jhazmat.2011.04.101
M3 - 文章
C2 - 21621328
AN - SCOPUS:80955178328
SN - 0304-3894
VL - 192
SP - 86
EP - 92
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 1
ER -