Fig. 7
From: Microwave assisted chemical pretreatment of Miscanthus under different temperature regimes
Surface images obtained by SEM on Miscanthus treated with water and 0.2 M H2SO4 pretreatment at 200 °C; microwave power: 300 W. a Water pretreatment; magnification bar scale was 5 μm; b 0.2 M H2SO4 pretreatment; magnification bar scale is 5 μm; c water pretreatment; magnification bar scale is 1 μm; d 0.2 M H2SO4 pretreatment; magnification bar scale is 1 μm