Fig. 4
From: Functional group characteristics of coal treated with clean biomass surfactant via FTIR spectroscopy
Hydroxyl absorption band of coal sample (3650 ~ 3000 cm− 1) peak fitting chart for hydroxyl groups.
Fig. 4 | Scientific Reports
From: Functional group characteristics of coal treated with clean biomass surfactant via FTIR spectroscopy
Hydroxyl absorption band of coal sample (3650 ~ 3000 cm− 1) peak fitting chart for hydroxyl groups.
