一般来说，吸水性强的物质均可用作干燥剂。金属离子超分子吸附剂对水溶液中Cu~（2+）吸附行为的研究
Generally speaking , water-absorbing materials can all be used as a desiccant . Adsorption performance on Cu ~ ( 2 + ) with adsorbent based on cyclodextrin modified silicon dioxide
吸水性物质