介孔氧化硅的分形特征

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介孔氧化硅广泛应用于催化、吸附、分离中.将介孔氧化硅进行有机官能化则可改善其孔道表面性能.应用同步辐射小角X射线散射(SAXS)研究了纯介孔氧化硅和有机官能化介孔氧化硅的分形特征,结果表明它们均具有两种分形结构,即表面分形和孔分形.同时探讨了分形维数随样品制备条件的变化规律.
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