Articles | Volume 13, issue 19
https://doi.org/10.5194/bg-13-5557-2016
https://doi.org/10.5194/bg-13-5557-2016
Research article
 | 
06 Oct 2016
Research article |  | 06 Oct 2016

Surface complexation modeling of Cd(II) sorption to montmorillonite, bacteria, and their composite

Ning Wang, Huihui Du, Qiaoyun Huang, Peng Cai, Xingmin Rong, Xionghan Feng, and Wenli Chen

Related subject area

Biogeochemistry: Modelling, Terrestrial
Long-term changes of nitrogen leaching and the contributions of terrestrial nutrient sources to lake eutrophication dynamics on the Yangtze Plain of China
Qi Guan, Jing Tang, Lian Feng, Stefan Olin, and Guy Schurgers
Biogeosciences, 20, 1635–1648, https://doi.org/10.5194/bg-20-1635-2023,https://doi.org/10.5194/bg-20-1635-2023, 2023
Short summary
Towards an ensemble-based evaluation of land surface models in light of uncertain forcings and observations
Vivek K. Arora, Christian Seiler, Libo Wang, and Sian Kou-Giesbrecht
Biogeosciences, 20, 1313–1355, https://doi.org/10.5194/bg-20-1313-2023,https://doi.org/10.5194/bg-20-1313-2023, 2023
Short summary
Effect of land-use legacy on the future carbon sink for the conterminous US
Benjamin S. Felzer
Biogeosciences, 20, 573–587, https://doi.org/10.5194/bg-20-573-2023,https://doi.org/10.5194/bg-20-573-2023, 2023
Short summary
Information content in time series of litter decomposition studies and the transit time of litter in aridlands
Agustín Sarquis and Carlos A. Sierra
EGUsphere, https://doi.org/10.5194/egusphere-2023-90,https://doi.org/10.5194/egusphere-2023-90, 2023
Short summary
Peatlands and their carbon dynamics in northern high latitudes from 1990 to 2300: a process-based biogeochemistry model analysis
Bailu Zhao and Qianlai Zhuang
Biogeosciences, 20, 251–270, https://doi.org/10.5194/bg-20-251-2023,https://doi.org/10.5194/bg-20-251-2023, 2023
Short summary

Cited articles

Akafia, M. M., Reich, T. J., and Koretsky, C. M.: Assessing Cd, Co, Cu, Ni, and Pb sorption on montmorillonite using surface complexation models, Appl. Geochem., 26, 154–157, 2011.
Alessi, D. S. and Fein, J. B.: Cadmium adsorption to mixtures of soil components: Testing the component additivity approach, Chem. Geol., 270, 186–195, 2010.
Angove, M. J., Johnson, B. B., and Wells, J. D.: Adsorption of cadmium(II) on kaolinite, Colloid. Surface. A, 126, 137–147, 1997.
Benedicto, A., Degueldre, C., and Missana, T.: Gallium sorption on montmorillonite and illite colloids: Experimental study and modelling by ionic exchange and surface complexation, Appl. Geochem., 40, 43–50, 2014.
Borrok, D. M. and Fein, J. B.: The impact of ionic strength on the adsorption of protons, Pb, Cd, and Sr onto the surfaces of Gram negative bacteria: testing non-electrostatic, diffuse, and triple-layer models, J. Colloid Interf. Sci., 286, 110–126, 2005.
Download
Short summary
We developed surface complexation model for Cd(II) adsorption on montmorillonite, B. subtilis, and their composite. The Cd adsorption behavior onto the composite can be described by a component additivity approach (CA-SCM). The Cd complexes of X2Cd, SOCd+, R-COOCd+, and R-POCd+ were the predominant species on the composite over the pH range of 3 to 8. The model could be useful for the prediction of heavy metal distribution at the interface of multicomponents and their risk evaluation in soils.
Altmetrics
Final-revised paper
Preprint