不同结构铝氧化物对磷的吸附特征

李敬,刘晓月,邱千峰,李苓,曹晓燕

Phosphorus Sorption Characteristics on Aluminum Oxides with Different Structures

LI Jing,LIU Xiaoyue,QIU Qianfeng,LI Ling,CAO Xiaoyan

表1 不同离子强度介质中两种铝氧化物的表面酸碱性质

Table 1 Surface acid-base properties of two aluminum oxides in different ionic strength media

NaNO3 concentration/ (mol·L-1) HS concentration/(mol·L-1) TOTHpH=8/(mmol·L-1) pHPZNPC* γ-Al2O3 Amorphous alumina γ-Al2O3 Amorphous alumina γ-Al2O3 Amorphous alumina 0.01 3.35×10-3 2.69×10-3 - - 4.52 4.25 0.10 2.94×10-3 1.79×10-3 - - 0.70 2.75×10-3 1.09×10-3 -0.809 -1.380