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. 2017 May 11;12(5):e0176884. doi: 10.1371/journal.pone.0176884

Fig 3. FTIR-ATR spectra of biomasses and their respective biochars pyrolyzed at 350, 450, and 750°C.

Fig 3

(A) Chicken manure. (B) Eucalyptus sawdust. (C) Coffee husk. (D) Sugarcane bagasse. (E) Pine bark.