| abstract |
Adsorbents comprising: silica particles having a broad pore size distribution as measured by a pore size distribution width 90, which pore size distribution width 90 value is calculated as [(PD90 - PD10 )/PD50], while PD10 is the pore diameter at 10% cumulative pore volume contribution, PD50 is pore diameter at 50% cumulative pore volume contribution, and PD90 is pore diameter at 50% cumulative pore volume contribution. 90% cumulative pore volume contribution, all based on mercury intrusion data, of at least 2.8; and polymeric material covalently bonded to surfaces of said silica particles. |