Synthesis of Acidic Heterogeneous Catalysts with High Stability Based on Graphene Oxide/Activated Carbon Composites for the Esterification of Lactic Acid

<div>FT-IR spectra of activated carbon (a), sulfonated bio-char (b), graphene oxide (c), and GO/AC (d).</div>

Journal of Chemistry

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Figure 3

Figure 3: Synthesis of Acidic Heterogeneous Catalysts with High Stability Based on Graphene Oxide/Activated Carbon Composites for the Esterification of Lactic Acid 

Figure 3 | Synthesis of Acidic Heterogeneous Catalysts with High Stability Based on Graphene Oxide/Activated Carbon Composites for the Esterification of Lactic Acid 