The silica xerogels were synthesized by ambient pressure drying method with hydrofluoric acid(HF) as catalyzer.The influence of catalyzer and drying method on the xerogels were analyzed.

• 以氢氟酸(HF)为催化剂,采用常压干燥法制备了二氧化硅干凝胶,分析了催化剂和干燥条件对干凝胶的影响。