Characterization of nanoparticles of biochars from different biomass

Patryk Oleszczuk, Wiesława Ćwikła-Bundyra, Aleksandra Bogusz, Ewa Skwarek, Yong Sik Ok

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)165-172
Number of pages8
JournalJournal of Analytical and Applied Pyrolysis
Volume121
DOIs
Publication statusPublished - 2016 Sep 1
Externally publishedYes

Keywords

  • Biochar
  • Black carbon
  • Charcoal
  • Nanomaterial
  • Nanoparticle

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Fingerprint Dive into the research topics of 'Characterization of nanoparticles of biochars from different biomass'. Together they form a unique fingerprint.

  • Cite this