Discussion: (a)isotherm: at low pressure ap<<1,0=ap,Vop at high pressure,ap1,0=1,V=Vmax Vmax:saturated amount of adsorption (即固体表面全部铺满一层气体分子时的吸量) max V是一个重要参数。从吸附质分子截面积,可 计算吸附剂的总表面积S和比表面A。V p Vmax Discussion: (a) isotherm: at low pressure , ap<<1,θ=ap, V∝p at high pressure, ap>>1, θ=1, V= Vmax Vmax: saturated amount of adsorption (即固体表面全部铺满一层气体分子时的吸量) Vm是一个重要参数。从吸附质分子截面积Am,可 计算吸附剂的总表面积S和比表面A