Table 3 Surface characteristics of the various biomass adsorbents

From: Production and characterisation of adsorbents synthesised by hydrothermal carbonisation of biomass wastes

Materials Parameters
BET surface area (m2/g) Pore volume (cm3/g) BJH pore size
(nm)
Raw biomass
Coconut shell 0.710 0.003 17.860
Coco-peat 1.230 0.004 21.460
Rice husk 0.460 0.003 40.980
Lemon peel 0.310 0.001 20.070
Egg shell 0.090 0.001 21.160
Hydrochar
Coconut shell 21.820 0.090 14.020
Coco-peat 2.140 ND 8.850
Rice husk 15.740 0.031 8.850
Lemon peel 6.890 0.037 13.630
Egg shell 0.500 0.002 18.890
  1. ND = Below detection level due to fewer than 2 data points