TY - JOUR
T1 - Characterization of nanoparticles of biochars from different biomass
AU - Oleszczuk, Patryk
AU - Ćwikła-Bundyra, Wiesława
AU - Bogusz, Aleksandra
AU - Skwarek, Ewa
AU - Ok, Yong Sik
N1 - Publisher Copyright:
© 2016 Elsevier B.V. All rights reserved.
PY - 2016/9/1
Y1 - 2016/9/1
N2 - The research on biochar is focused primarily on the estimation of biochar as a "macro" fraction, and not much attention is devoted to its fractions with finer particles. The aim of the study was to characterize the physicochemical properties of biochar nanoparticles (biochar-NPs). The properties of the biochar-NPs were also compared to the properties of initial biochars. The results of this study indicate that the properties of biochar-NPs differ from the properties of their macro-counterparts. The differences were observed in the pH, cation exchange capacity, content of particular elements, and aromaticity/polarity not only based on the type of biochars, but also the regularities in the differences between their macro- and nano-forms. The nano-biochars had a larger surface area and smaller pore sizes than the corresponding macro-biochars and were characterized by a higher negative zeta potential and greater diversity of crystalline forms than the macro-biochar. Moreover, nano-biochar had significantly lower levels of C, H, and N compared to macro biochars.
AB - The research on biochar is focused primarily on the estimation of biochar as a "macro" fraction, and not much attention is devoted to its fractions with finer particles. The aim of the study was to characterize the physicochemical properties of biochar nanoparticles (biochar-NPs). The properties of the biochar-NPs were also compared to the properties of initial biochars. The results of this study indicate that the properties of biochar-NPs differ from the properties of their macro-counterparts. The differences were observed in the pH, cation exchange capacity, content of particular elements, and aromaticity/polarity not only based on the type of biochars, but also the regularities in the differences between their macro- and nano-forms. The nano-biochars had a larger surface area and smaller pore sizes than the corresponding macro-biochars and were characterized by a higher negative zeta potential and greater diversity of crystalline forms than the macro-biochar. Moreover, nano-biochar had significantly lower levels of C, H, and N compared to macro biochars.
KW - Biochar
KW - Black carbon
KW - Charcoal
KW - Nanomaterial
KW - Nanoparticle
UR - http://www.scopus.com/inward/record.url?scp=84990817472&partnerID=8YFLogxK
U2 - 10.1016/j.jaap.2016.07.017
DO - 10.1016/j.jaap.2016.07.017
M3 - Article
AN - SCOPUS:84990817472
VL - 121
SP - 165
EP - 172
JO - Journal of Analytical and Applied Pyrolysis
JF - Journal of Analytical and Applied Pyrolysis
SN - 0165-2370
ER -