本文關鍵詞：納米SAPO-34分子篩的制備與表征　出處：《硅酸鹽通報》2015年04期 　論文類型：期刊論文

  更多相關文章： 納米SAPO-分子篩 相對結晶度 水熱法 粒徑

【摘要】：本文采用水熱合成法制備納米SAPO-34分子篩,并考查了晶化時間、陳化時間、水含量對納米SAPO-34分子篩合成的影響,進一步采用XRD、SEM對合成的分子篩進行表征。實驗結果表明,在一定范圍內,當物料摩爾配比為1(Al2O3)∶2(P2O5)∶0.6(SiO2)∶4(TEAOH)∶107(H2O),室溫陳化72h,200℃晶化時間為24h時,合成的納米SAPO-34分子篩相對結晶度較高,平均粒徑約為255nm。
[Abstract]:Nano-sized SAPO-34 molecular sieves were prepared by hydrothermal synthesis. The effects of crystallization time, aging time and water content on the synthesis of nano-sized SAPO-34 molecular sieves were investigated. XRD was further used. SEM was used to characterize the synthesized molecular sieve. When the molar ratio of Al _ 2O _ 3 to P _ 2O _ 5 is 1: 1, P _ 2O _ (5): 0.6 / Sio _ (2) O _ (2) O _ (2): 1 / 10 ~ (7) H _ 2O, aging at room temperature for 72 h. When the crystallization time at 200 鈩，

本文編號：1432381