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Table 6 Organic compounds and associated functional groups (Zhu et al. 2015; Liu and Han 2015; Zhao et al. 2012; Yang et al. 2007)

From: Effect of feedstock and microwave pyrolysis temperature on physio-chemical and nano-scale mechanical properties of biochar

Compound Functional group Wave number, cm−1
Cellulose O–H
C=C
3600–3200
1600–1740
Hemicellulose C=O 1735
Lignin C–O–C 1160