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. 2018 Feb 8;11:31. doi: 10.1186/s13068-018-1035-x

Fig. 4.

Fig. 4

AFM amplitude images,3D images and height distribution images (from left to right): a the untreated RS presented a smooth surface; b RS-Fenton surface became noticeably rough with the appearance of highlighted hydrophilic hemicellulose sites and hydrophobic lignin droplets (20–100 nm, pointed out with the arrow); c RS-Fenton + B-8, the globular shapes of the deposited lignin decreased