以硝酸为氧化剂,研究了不同浓度硝酸溶液对不同用量SBA-15前驱体中模板剂的脱除效果.产物结构和形貌采用X射线衍射、Fourier红外光谱、透射电镜、N2吸附-脱附等手段进行表征.结果表明:用2.0 mol/L HNO3对模板剂进行氧化脱除,脱除率达到82.5%;分子筛无机骨架结构保持完好,与传统高温焙烧相比,产物具有较大的孔径.
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