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Bioresources and Bioprocessing

Table 2 Relative atomic concentration of C in the selected hydrochars

From: Rice husk hydrochars from metal chloride-assisted hydrothermal carbonization as biosorbents of organics from aqueous solution

Sample

C–(C, H) (%)

C–O (%)

C=O

O–C–O (%)

COO– (%)

RHH

33.2

43.5

19.4

4.0

RHHK0.6

25.6

41.6

26.1

6.8

RHHCa0.2

14.2

34.9

33.0

17.9

RHHCa0.6

45.0

44.2

8.4

2.5

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