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OALib Journal期刊
ISSN: 2333-9721
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ts-1分子筛的表面改性与再生
Abstract:
？合成钛硅分子筛ts-1,研究了表面负载金属钯、表面硅烷化处理对ts-1催化氧化性能的影响以及ts-1的稳定性和再生性能.结果表明:金属pd对氧化剂h2o2具有显著的分解作用,负载于ts-1表面会导致ts-1分子筛催化氧化活性下降.表面硅烷化处理可以增强ts-1表面疏水性,进而提高其催化氧化活性.ts-1分子筛的失活不是结构崩溃、骨架钛损失或中毒因素引起的,而是其孔道被大分子有机物堵塞所致.采用高温焙烧或h2o2溶液洗涤法能疏通失活ts-1分子筛的孔道,使其再生.
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