I am adsorbing heavy metals such as lead, on biochar surface, and thus properties like cation exchange capacity, complexes of metal, etc are concerned. I would like to know, what are the chemical/ physical properties, such as O/C ratios, availability of functional groups, Pyrolysis temperature of biochar, etc.
The important physical properties of biochar include the bulk surface area, pore size distribution, particle size particle size distribution, density, and packing. The surface of biochar affects soil aeration , water holding capacity, and nutrient retention as well as the microbial activity within the soil. The surface area of sandy soil is low and can therefore be increased through the application of biochar. The CEC and anion exchange capacity of biochar strongly affect the retention of nutrients within the soil. These physical and chemical characteristics of biochar can impart the soil and can lead to a pH neutralization effect, increased electro conductivity and cation exchange capacities. For more details consult https;//www.sciencedirect.com - Biochar
refer to this one for overall property analysis of different biochars
Denyes, M. J., Parisien, M. A., Rutter, A., & Zeeb, B. A. (2014). Physical, chemical and biological characterization of six biochars produced for the remediation of contaminated sites. Journal of visualized experiments : JoVE, (93), e52183. doi:10.3791/52183
refer to this one specifically for CEC
http://iopscience.iop.org/article/10.1088/1755-1315/131/1/012055/pdf
both are accessible
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