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. 2021 Mar 1;2021:6653593. doi: 10.1155/2021/6653593

Figure 4.

Figure 4

XRD spectrum (a) and COD percentage content (b) of the CaOx crystal formed by PCP-Cs with different COOH contents. (A) PCP-C0. (B) PCP-C1. (C) PCP-C2. (D) PCP-C3. Polysaccharide concentration: 0.4 g/L.