关键词: 凹凸棒石, 二氧化硅气凝胶, 溶胶凝胶法, 制备, 总石油烃, 去除效果

Abstract:

Aerogel fiber was prepared at room temperature and atmospheric pressure via solgel doped fiber method. Taking total petroleum hydrocarbons (TPH) as the target pollutant, we can determine the optimal preparation conditions of natural silicate composite silica aerogel. The results show that TPH as the target pollutant, the optimal ratio of raw materials for the composite aerogel was: V(TEOS)∶V(EtOH)∶m(attapulgite)∶V(H2O)∶V
(HF)=5∶15∶0.3∶2.5∶0.3. The environmental temperature is room temperature, without the pH regulation of reaction system. At the condition, the removal effect of TPH from water by silica aerogel was 88.57%.

Key words: attapulgite, silica aerogel, solgel method, preparation, total petroleum hydrocarbons (TPH), removal effect